Checking to test compilation

2023-04-26 14:39:32 +02:00
34 changed files with 3213 additions and 3423 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,41 +1 @@
-# C++ objects and libs
-
-*.slo
-*.lo
-*.o
-*.a
-*.la
-*.lai
-*.so
-*.dll
-*.dylib
-
-# Qt-es
-
-*.pro.user
-*.pro.user.*
-moc_*.cpp
-qrc_*.cpp
-Makefile
-Makefile.*
-*-build-*
-
-#
-*.autosave
-ui_*.h
-version.h
-version.txt
-
-packages/*
-*.pro.orig
-Output/setup.exe
-.directory
-
-*~
-resources/icons/*.png
-resources/icons/*.jpg
-resources/icons/*.gif
-resources/style/*.qss
-text/*.html
-!text/*_template.html
-text/*.xml
+*.user
--- a/DCPlugin.pri
+++ b/DCPlugin.pri
@@ -11,7 +11,9 @@ HEADERS += $${PWD}/include/com.h \
    $${PWD}/include/sendWRcmd.h \
    $${PWD}/include/storeINdata.h \
    $${PWD}/include/tslib.h \
-    $${PWD}/include/shared_mem_buffer.h
+    $${PWD}/include/shared_mem_buffer.h \
+    $${PWD}/include/serial_port_thread.h \
+    $${PWD}/include/serial_port_worker.h

 SOURCES += $${PWD}/src/com.cpp \
    $${PWD}/src/controlBus.cpp \
@@ -22,4 +24,6 @@ SOURCES += $${PWD}/src/com.cpp \
    $${PWD}/src/sendWRcmd.cpp \
    $${PWD}/src/storeINdata.cpp \
    $${PWD}/src/tslib.cpp \
-    $${PWD}/src/shared_mem_buffer.cpp
+    $${PWD}/src/shared_mem_buffer.cpp \
+    $${PWD}/src/serial_port_thread.cpp \
+    $${PWD}/src/serial_port_worker.cpp
--- a/DCPlugin.pro
+++ b/DCPlugin.pro
@@ -14,8 +14,6 @@ QMAKE_CXXFLAGS += -Wno-deprecated-copy
 # default
 ARCH = PTU5

-include(DCPlugin.pri)
-
 contains( CONFIG, DesktopLinux ) {
    QMAKE_CC = ccache $$QMAKE_CC
    QMAKE_CXX = ccache $$QMAKE_CXX
@@ -23,6 +21,7 @@ contains( CONFIG, DesktopLinux ) {
    # QMAKE_CXXFLAGS += -Wno-deprecated-ctor
    linux-clang {  QMAKE_CXXFLAGS += -Qunused-arguments   }
    ARCH = DesktopLinux
+    include(DCPlugin.pri)
 }

 contains( CONFIG, PTU5 ) {
@@ -32,23 +31,22 @@ contains( CONFIG, PTU5 ) {
    linux-clang {  QMAKE_CXXFLAGS += -Qunused-arguments   }
    CONFIG += link_pkgconfig
    ARCH = PTU5
+
+    # NOTE: include contents of DCPlugin.pri. Also used by ATBQT.
+    # Add new files in DCPlugin.pri.
+    include(DCPlugin.pri)
 }

 contains( CONFIG, PTU5_YOCTO ) {
-    greaterThan(QT_MAJOR_VERSION, 4): QT += serialport
-    PTU5BASEPATH = /opt/devel/ptu5
    ARCH = PTU5

    # add qmqtt lib
    #LIBS += -lQt5Qmqtt
 }

-TARGET   = ATBDeviceControllerPlugin
-#DESTDIR  = ../plugins
-INTERFACE = DeviceController
-INTERFACE_DEFINITION = $${PWD}/include/ATBAPP/DeviceControllerInterface.h
+TARGET   = CashAgentLib
+DESTDIR  = ../plugins

-DEFINES += DEVICECONTROLLERPLUGIN_LIBRARY

 # The following define makes your compiler emit warnings if you use
 # any Qt feature that has been marked deprecated (the exact warnings
@@ -68,27 +66,3 @@ DEFINES += QT_DEPRECATED_WARNINGS
 #else: unix:!android: target.path = /opt/$${TARGET}/bin
 #!isEmpty(target.path): INSTALLS += target

-# ATBAPP interface
-HEADERS += \
-    src/ATBAPP/ATBAPPplugin.h \
-    src/ATBAPP/DeviceControllerInterface.h \
-    src/ATBAPP/ATBHealthEvent.h \
-    src/ATBAPP/ATBDeviceControllerPlugin.h
-
-SOURCES += \
-    src/ATBAPP/ATBHealthEvent.cpp \
-    src/ATBAPP/ATBDeviceControllerPlugin.cpp
-
-DISTFILES += \
-    generate-version.sh
-
-
-# Define how to create version.h
-VERSION_H = $$PWD/include/version.h
-version.output = $$PWD/include/version.h
-version.commands = $$PWD/generate-version.sh $${ARCH} $${TARGET} $${INTERFACE} $${INTERFACE_DEFINITION} $${VERSION_H}
-version.depends = FORCE
-version.input = VERSION_H
-version.variable_out = HEADERS
-QMAKE_EXTRA_COMPILERS += version
-QMAKE_CLEAN += $${PWD}/include/version.h
--- a/generate-version.sh
+++ b/generate-version.sh
@@ -1,155 +0,0 @@
-#!/bin/bash
-
-VERSION_STRING=""
-
-#GIT='/cygdrive/c/Program Files \(x86\)/Git/bin/git'
-GIT=git
-
-
-
-
-parse_git_branch () {
-    $GIT branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/\1/"
-}
-
-
-ARCH=$1
-TARGET=$2
-INTERFACE=$3
-INTERFACE_DEFINITION=$4
-VERSION_H=$5
-
-SCRIPT=$(readlink -f $0)
-SCRIPTPATH=`dirname $SCRIPT`
-OUTPUTDIR=$(pwd)
-echo " current dir is : " $(pwd)
-echo $SCRIPT
-echo $SCRIPTPATH
-
-echo "changing dir to script path: " $SCRIPTPATH
-cd $SCRIPTPATH
-
-# set version string ##################################################################
-if [ -z $VERSION_STRING ] ; then
-  VERSION_STRING=$(date +%Y%m%d_%H%M)
-fi
-GIT_DESCRIBE=$($GIT describe)
-GIT_BRANCH=$(parse_git_branch)
-
-# extract path from branchname:
-IFS='_' read -ra TMP_ARRAY <<< "${GIT_BRANCH}"
-BRANCH_PATH=${TMP_ARRAY[0]}
-
-
-
-# detect if we have a development version:
-if [ ${#TMP_ARRAY[1]} -gt 0 ] ; then
-  DEV_SUFFIX="_dev"
-else
-  DEV_SUFFIX=""
-fi
-
-# detect if git status is dirty
-GIT_DESCRIBE_DIRTY=$($GIT describe --dirty)
-if [ "${GIT_DESCRIBE_DIRTY:(-6)}" == "-dirty" ] ; then
-  DIRTY_SUFFIX="_dirty"
-else
-  DIRTY_SUFFIX=""
-fi
-
-
-if [ -n "$DIRTY_SUFFIX" ] || [ -n "$DEV_SUFFIX" ] ; then
-  DEVDIRTY=true
-else
-  DEVDIRTY=false
-fi
-
-
-# extract interface definition 
-
-#
-#Q_DECLARE_INTERFACE(CCInterface,
-#         "eu.atb.ptu.plugin.CCInterface/2.9.0")
-# -> extract whole string within quotation marks
-INTERFACE_VERSION=$(grep 'eu.atb.ptu.plugin.' ${INTERFACE_DEFINITION})
-# get string within quotes:
-INTERFACE_VERSION=`echo ${INTERFACE_VERSION} | awk -F \" '{print $2}'`
-
-
-#
-# write version.h
-
-
-echo "     TARGET is: $TARGET"
-echo "     ARCH   is: $ARCH"
-echo " "
-echo "     PluginName: $TARGET"
-echo "     Interface:  $INTERFACE"
-echo "     InterfaceVersion: $INTERFACE_VERSION"
-echo " "
-echo "     new version is:  $VERSION_STRING"
-echo "     git describe is: $GIT_DESCRIBE"
-echo "     git branch is:   $GIT_BRANCH"
-echo "     branch-path is:  $BRANCH_PATH"
-echo "  "
-
-echo "     dev suffix:     $DEV_SUFFIX"
-echo "     dirty suffix:   $DIRTY_SUFFIX"
-
-
-PLUGIN_VERSION=${VERSION_STRING}
-#ATB_QT_GIT_DESCRIBE=${GIT_DESCRIBE}_${GIT_BRANCH}
-PLUGIN_GIT_DESCRIBE=${GIT_DESCRIBE}_${BRANCH_PATH}${DEV_SUFFIX}${DIRTY_SUFFIX}
-
-#TARGET=IngenicoZVT_CCPlugin
-
-
-# build version.h #####################################################################
-
-echo "     building new version info (version.h) ..."
-
-
-
-
-echo "#ifndef VERSION_H"   >  ${VERSION_H}
-echo "#define VERSION_H"   >> ${VERSION_H}
-echo ""                    >> ${VERSION_H}
-echo ""                    >> ${VERSION_H}
-echo "#define INTERFACE_VERSION \"${INTERFACE_VERSION}\""      >> ${VERSION_H}
-echo "#define PLUGIN_VERSION \"${PLUGIN_VERSION}\""           >> ${VERSION_H}
-echo ""                                                       >> ${VERSION_H}
-echo "#define PLUGIN_GIT_DESCRIBE \"${PLUGIN_GIT_DESCRIBE}\"" >> ${VERSION_H}
-echo ""                                                       >> ${VERSION_H}
-echo ""                                                       >> ${VERSION_H}
-
-cat <<EOT >> ${VERSION_H}
-
-const std::string pluginInfoString = R"(
-{
-    "Interface": "${INTERFACE}",
-    "InterfaceVersion": "${INTERFACE_VERSION}",
-    "PluginName": "${TARGET}",
-    "Version": "${PLUGIN_VERSION}",
-    "git-describe": "${PLUGIN_GIT_DESCRIBE}",
-}
-)";
-
-EOT
-
-echo ""                                              >> ${VERSION_H}
-echo ""                                              >> ${VERSION_H}
-if [ ${DEVDIRTY} == "true" ] ; then
-echo "#define DEVDIRTY"                              >> ${VERSION_H}
-echo ""                                              >> ${VERSION_H}
-echo ""                                              >> ${VERSION_H}
-fi
-echo "#define SYSTEM_ARCH \"${ARCH}\""               >> ${VERSION_H}
-echo "#define ARCH_${ARCH}"                          >> ${VERSION_H}
-echo ""                                              >> ${VERSION_H}
-echo "" 					     >> ${VERSION_H}
-echo "#endif //VERSION_H"  >> ${VERSION_H}
-
-
-
-
-
--- a/include/datIf.h
+++ b/include/datIf.h
@@ -308,8 +308,6 @@ class T_datif : public QMainWindow
    QTimer *datif_trigger;
    uint8_t selectedSlaveAddr;

-    int datif_noResponseCtr;
-
 private slots:
    char datif_cycleSend();
    void StoredRecData();
@@ -326,7 +324,6 @@ public:
        // Sende Schreibbefehle die bereits vorher asynchron gespeichert wurden
    void send_requests(uint16_t nextWrCmd);
    void sendHighLevel(uint16_t nxtHLCmd);
-    bool areDataValid(void);

 signals:
    void ResponseRecieved();
--- a/include/dcBL.h
+++ b/include/dcBL.h
@@ -78,7 +78,7 @@ uint8_t dcBL_getResult(void);


 #define RAW_BL_DATALEN      150
-void gpi_storeRawReceivedData(uint8_t  RdDlen, uint8_t *receivedData);
+void gpi_storeRawReceivedData(uint8_t  RdDlen, uint8_t const *receivedData);

 uint8_t epi_getRawReceivedData(uint8_t *receivedData);
    // retval=length, will be zeroed after first reading
--- a/include/hwChk.h
+++ b/include/hwChk.h
@@ -1,35 +0,0 @@
-
-#ifndef hwchk_H
-#define hwchk_H
-
-#include <stdint.h>
-#include <QTabWidget>
-#include <QObject>
-#include "interfaces.h"
-//#include "datIf.h"
-#include <QDebug>
-#include <QSharedMemory>
-#include "hwapi.h"
-
-//class QSharedMemory;
-class hwChk :   public QObject,
-                public hwinf
-{
-    Q_OBJECT
-//    Q_PLUGIN_METADATA(IID "Atb.Psa2020.software.HWapi/1.0" )   //FILE "HWapi.json")
-//    Q_INTERFACES(hwinf)
-//private:
-//    QSharedMemory *m_sharedMem;
-
-public:
-    explicit hwChk(QWidget *parent = nullptr);
-    virtual ~hwChk();
-
-
-public:
-    hwinf *HWaccess;
-
-
-};
-
-#endif
--- a/include/hwapi.h
+++ b/include/hwapi.h
@@ -17,14 +17,78 @@ matching interfaces.h:
 //#define HWINF_iid "Atb.Psa2020.software.HWapi/3.1"
 //#define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/3.1"
 #define HWINF_iid "Atb.Psa1256ptu5.software.HWapi/3.3"
+
+
+PSA1259 hardware control using the DeviceController DC2
+
+covering enclosure (switches and doors) and money devices,
+controls mifare card to access or program
+optional it can control printer, modem, bar code reader and credit card
+
+ * API to the PSA1259 Hardware
+ * All data come in from device controller via serial interface and will be stored
+ * in "PI" = peripheral image
+ * PI is updated every 100ms (up to 30ms possible)
+ * This api uses stored pi data and returns them in the following functions
+ * created: Q1/2020 TS
+ *
+
+The devices, connected to device controller2 (DC2) can be controlled in different access levels.
+Level 1:
+    direct connection to DC2, check versions, state and parameters
+    control serial interfaces
+    digital/analog IO's
+    read and write to connected devices on lowest level, this is a kind of fall-back-level
+    in case higher levels fail or do not support the needed (new) function
+    Example: send a specific printer command, several bytes that need to be conform to
+            printer manual. This command is routed to the printer through the DC2 without
+            any action of the DC. You can write your own device driver that way.
+    Level 1 is flexible but complicated
+
+Level 2:
+   The DC controls the connected devices containing a device driver. The DC offers
+   usage of the device by simple commands,
+   Example: "Printer on", "set Font size 3" "print "hello world"", "cut"
+   In opposite to level 1 where you had to send a set of numbers and letters.
+   In other words: you "talk" to the device controller, not to the device itself.
+
+Level 3:
+    start/stop complete processes.
+    Example: 1) print (predefined) document nr 3 with Text, letter size, font set, cut.
+                Also power up/down the printer, check if paper ok and so on.
 */

+/*
+Another access example: control the coin unit
+
+Level 1): read digital inputs to detect coin,
+          switch digital output which opens coin slot
+          communicate with coin checker by certain mdb-commands (manual conform)
+          poll coin checker for inserted coins
+          close coin slot after 3seconds by setting DO to 0....
+
+Level 2): get message of attached coin from DC
+          send command "initialize coin checker" to DC
+          send command "open slot for 3s"
+          poll DC for inserted coins, DC polls coin checker in right way, no need
+                to know the data sheet of the coin checker or mdb-bus
+          command to DC "open coin escrow's return flap for 1s"
+
+Level 3): send command: "start payment process"
+          all coin devices are started up
+          coin blocker opens for 3s if a coin is attached
+          coin checker summarizes inserted value and reports sum
+          later send command "stop payment process" (puts coins to vault) or
+          send command "cancel payment process" (returns coins to user)
+
+*/

 #ifndef hwapi_H
 #define hwapi_H

 #include <stdint.h>
-#include <QTimer>
+#include <QTabWidget>
+#include <QtPlugin>
 #include <QObject>
 #include "interfaces.h"
 #include "datIf.h"
@@ -34,10 +98,10 @@ class hwapi :   public QObject,
                public hwinf
 {
    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "Atb.Psa2020.software.HWapi/1.0" )   //FILE "HWapi.json")
    Q_INTERFACES(hwinf)
 private:
    void sub_storeSendingText(QByteArray *buf) const;
-    QTimer *hwapi_TimerPayment;

    DownloadResult sendNextAddress(int bNum) const;
    DownloadResult sendNextDataBlock(QByteArray const &b, int bNum) const;
@@ -54,13 +118,13 @@ private:

    QSharedMemory *m_sharedMem;
 public:
-    explicit hwapi(QObject *parent = nullptr);
+    explicit hwapi(QWidget *parent = nullptr);
    virtual ~hwapi();

    T_datif *myDatif;


-    virtual QStringList dc_getStatus() const override;
+    virtual QStringList dc_getStatus() const;

    // ------------------------------------------------------------------------------
    // Level 0 commands, interface
@@ -184,13 +248,6 @@ public:
    uint8_t bl_exitBL(uint8_t *sendData) const override;
        // minimum size of sendData-buffer: 5byte  retval: length

-
-
-
-
-
-
-
    // ------------------------------------------------------------------------------
    // Level 2  DC2-onboard devices
    //          WR: set time
@@ -993,17 +1050,6 @@ public:
    bool cash_startPayment(uint32_t amount) const override;
        // 17.4.23TS: extended to 32bit

-    uint8_t cash_paymentProcessing(void) const override;
-        // run this function periodically while coin payment process to generate necessary signals
-        // return value:
-        // 0: stopped   1: starting up   2: coin collection
-        // 3: finished by User (Push button)  4: finished, Max-Value collected
-        // 5: finished by escrow
-        // 10,11: error cannot start
-        // 12: timeout while payment, coins returned
-        // 13: stopped by unexpected error
-
-
    bool cash_cancelPayment(void) const override;
        // and return coins

@@ -1037,16 +1083,6 @@ public:
    uint64_t sys_getWakeSource(void) const override;
        // retval: 6 bytes, bit coded, 1=event keeps DC awake

-    uint8_t sys_getWakeReason(void) const override;
-         // Master was woken by following reason:
-         // 1: MDB Event
-         // 2: Coin Event
-         // ( 3: Master Event) - will not set the wake line
-         // ( 4: 32s pulse) - will not set the wake line
-         // 5: Door Event
-         // ( 6: Diag Event) - will not set the wake line
-         // 7: 30min-Pulse for HB
-
    void sys_getDeviceConditions(uint8_t *leng, uint8_t *data) const override;

    void sys_getDeviceConditions(struct T_moduleCondition *devCond) const override;
@@ -1069,80 +1105,18 @@ public:
        //          bit6: no response             bit7: serial rec. error
        //			bit5: printer not ready

-    void sys_sendDeviceParameter(struct T_devices *deviceSettings) const override;
-
-    void sys_restoreDeviceParameter(struct T_devices *deviceSettings) const override;
-
-    bool sys_areDCdataValid(void) const override;
-
-    /* ---------------------------------------------------------------------------------------------
-    // ------------   supervise  all hardware components
-    // ------------    assess the machine state
-
-    1. check if DC startup test is through, retrigger if not
-    2. get results and find errors
-    3. in case of error check if component is used (e.g. billreader is seldom used)
-    4: check doors
-    5. return value: 0: no response from DC
-                     1: no Test results and Test not running. need retrigger!
-                     2: state not clear by now, test ongoing, wait
-                     3: Service or battery door is open, goto INTRUSION MODE
-                            from here: after valid ID-card goto SERVICE MODE
-                     4: vault door is open, goto INTRUSION MODE
-                            from here: after valid ID-card and vault door closed goto TEST MODE
-                            in TEST MODE: complete system check decides if vending mode allowed
-                     5: All doors are closed but errors found,
-                            goto OOO MODE (out-of-order)
-                            from here: run system test until problem is fixed
-                     6: All doors are closed, no error, maybe warnings,
-                            goto VENDING MODE (normal operation)
-                    (priority sinks from 0 to 6)
-
-     --------------------------------------------------------------------------------------------- */
-
-    uint8_t sys_componentAssessment(void) const override;
-    // this function decides if vending mode is possible, independant from door
-    // return >0 in case of error
-    // is inncluded in sys_superviseSystem
-
-    uint8_t sys_superviseSystem(void) const override;
-    // this function proofs if vending is possible depending of doors state
-
-
-    uint8_t sys_getSystemErrors(void) const override;
-
-    // ---------------------------------------------------------------------------------------------
-    // ---------------------------------------------------------------------------------------------
-    // ---------------------------------------------------------------------------------------------

 signals:
    void hwapi_templatePrintFinished_OK(void) const override;
    void hwapi_templatePrintFinished_Err(void) const override;
-
-    void hwapi_coinCollectionJustStarted(void) const override;
-    void hwapi_coinCollectionAborted(void) const override;
-
    void hwapi_gotNewCoin(void) const override;
-    void hwapi_payStopByMax(void) const override;
-    void hwapi_payStopByPushbutton(void) const override;
-
-    void hwapi_payStopByEscrow(void) const override;
-    void hwapi_payStopByError(void) const override;
-    void hwapi_payStopByTimeout(void) const override;
-    void hwapi_payCancelled(void) const override;
-
-    void hwapi_coinProcessJustStopped(void) const override;
-
-
-
-
-
+    void hwapi_vendStopByMax(void) const override;
+    void hwapi_vendStopByPushbutton(void) const override;

 private slots:
    void hwapi_slotPrintFinished_OK(void);
    void hwapi_slotPrintFinished_Err(void);
    void hwapi_slotGotCoin(void);
-    void hwapi_slotPayProc(void);

 };

--- a/include/interfaces.h
+++ b/include/interfaces.h
@@ -76,8 +76,8 @@ struct Tprn_currentSettings {
 struct T_dynDat {
    uint8_t licensePlate[8];
    uint8_t vendingPrice[8];
-    uint8_t parkingEndTime[8];
-    uint8_t parkingEndDate[8];
+    uint8_t parkingEnd[8];
+    uint8_t currentTime[8];
    uint8_t currentDate[8];
    uint8_t dynDat5[8];
    uint8_t dynDat6[8];
@@ -182,25 +182,29 @@ struct T_moduleCondition {
    uint8_t   ResetReason;
    uint8_t	allModulesChecked;

+    uint8_t   alarmState;
+    uint8_t   res11;
+    uint8_t   res12;
+    uint8_t   res13;
 };

 struct T_dynamicCondition {
-    char allDoorsDebounced;     // 99: undefined, 0=all closed, bit1=upper door open  2=midlle door open 3=lower door open
+    char allDoorsDebounced;
    char openedAuthorized;
    uint8_t CBinDebounced;
-    char upperDoor;		// 99: undefined  0:closed  1:open
-    char middleDoor;    // 99: undefined  0:closed  1:open
-    char lowerDoor;     // 99: undefined  0:closed  1:open
-    char reserve;       // not used, always 0
+    char upperDoor;		// 0:fehlt  1:drin
+    char middleDoor;
+    char lowerDoor;
+    char coinBox;
    char billBox;
    char modeAbrech;
-    char onAlarm;       // 0:alarm aus  1:alarm  2:alarm mit Sirene   3: Sirenentest
+    char onAlarm;
    char nowCardTest;
    char nowPayment;
    char lastMifCardType;
    uint8_t lastSDoorState;
    uint8_t lastVDoorState;
-    uint8_t lastCBstate;        // 99: undefined  0:not there   1:insered
+    uint8_t lastCBstate;
    char        paymentInProgress;
    char        res1;
    uint16_t    U_Batt;
@@ -228,8 +232,7 @@ struct T_dynamicCondition {
                //          bit4: paper jam in cutter
                //          bit6: no response             bit7: serial rec. error
                //			bit5: printer not ready
-    uint8_t     startupTestIsRunning;
-    //54
+//54
 };

 struct T_extTime {
@@ -260,39 +263,6 @@ struct T_extTime {
    uint32_t    MinutesOfMillenium;
 };

-typedef uint8_t UCHAR;
-typedef uint16_t UINT;
-
-struct T_devices
-{
-    // set by master, used(1) or notused (0) or type 2....20
-
-    UCHAR   kindOfPrinter;			// 0:off   1:Gebe
-    UCHAR	kindOfCoinChecker;		// 0: without  1=EMP820   2=EMP900    3=currenza c²	(MW)
-    UCHAR	kindOfMifareReader;		// by now only stronglink SL025 =1
-    UCHAR   suppressSleepMode;		// 0:sleep allowed   1: no sleep
-
-    UCHAR	kindOfModem;			// 0:off    1:Sunlink
-    UCHAR	kindOfCreditcard;		// 0:off    1:Feig NFC
-    UCHAR	CoinEscrow;
-    UCHAR   CoinRejectUnit;
-
-    UCHAR	CoinShutter;
-    UCHAR	BillAcceptor;
-    UCHAR	usevaultLock;
-    UCHAR	autoAlarm;				// 1: switch on siren for 1min in doors opened unauthorized
-
-    UCHAR	autoOpen;				// 1: open door covers after valid ATBcard
-    UCHAR	printAccReceipt;		// 0/1
-    UCHAR   printDoorReceipt;
-    UCHAR   printTokenTicket;
-
-    UINT	VaultFullWarnLevel;
-    UINT	VaultFullErrorLevel;
-
-};
-
-
 class hwinf {
 public:
    enum class DownloadResult {OK, ERROR, TIMEOUT, NOP};
@@ -1452,8 +1422,6 @@ public:
    virtual bool cash_startPayment(uint32_t amount) const=0;
        // 17.4.23TS: extended to 32bit

-    virtual uint8_t cash_paymentProcessing(void) const=0;
-
    virtual uint32_t getInsertedAmount(void) const=0;

    virtual uint16_t getLastInsertedCoin(void) const=0;
@@ -1483,16 +1451,6 @@ public:
    virtual uint64_t sys_getWakeSource(void) const =0;
        // retval: 6 bytes, bit coded, 1=event keeps DC awake

-    virtual uint8_t sys_getWakeReason(void) const=0;
-         // Master was woken by following reason:
-         // 1: MDB Event
-         // 2: Coin Event
-         // ( 3: Master Event) - will not set the wake line
-         // ( 4: 32s pulse) - will not set the wake line
-         // 5: Door Event
-         // ( 6: Diag Event) - will not set the wake line
-         // 7: 30min-Pulse for HB
-
    virtual void sys_getDeviceConditions(uint8_t *leng, uint8_t *data) const=0;
    /*

@@ -1614,79 +1572,12 @@ public:
        //          bit6: no response             bit7: serial rec. error
        //			bit5: printer not ready

-    virtual void sys_sendDeviceParameter(struct T_devices *deviceSettings) const=0;
-
-    virtual void sys_restoreDeviceParameter(struct T_devices *deviceSettings) const=0;
-
-    virtual bool sys_areDCdataValid(void) const=0;
-
-    /* ---------------------------------------------------------------------------------------------
-    // ------------   supervise  all hardware components
-    // ------------    assess the machine state
-
-    1. check if DC startup test is through, retrigger if not
-    2. get results and find errors
-    3. in case of error check if component is used (e.g. billreader is seldom used)
-    4: check doors
-    5. return value: 0: no response from DC
-                     1: no Test results and Test not running. need retrigger!
-                     2: state not clear by now, test ongoing, wait
-                     3: Service or battery door is open, goto INTRUSION MODE
-                            from here: after valid ID-card goto SERVICE MODE
-                     4: vault door is open, goto INTRUSION MODE
-                            from here: after valid ID-card and vault door closed goto TEST MODE
-                            in TEST MODE: complete system check decides if vending mode allowed
-                     5: All doors are closed but errors found,
-                            goto OOO MODE (out-of-order)
-                            from here: run system test until problem is fixed
-                     6: All doors are closed, no error, maybe warnings,
-                            goto VENDING MODE (normal operation)
-                    (priority sinks from 0 to 6)
-
-     --------------------------------------------------------------------------------------------- */
-
-    virtual uint8_t sys_componentAssessment(void) const=0;
-    // this function decides if vending mode is possible, independant from door
-    // return >0 in case of error
-    // is inncluded in sys_superviseSystem
-
-    virtual uint8_t sys_superviseSystem(void) const=0;
-    // this function proofs if vending is possible depending of doors state
-
-    virtual uint8_t sys_getSystemErrors(void) const=0;
-
-
-    // retrigger System-Check with:
-    // bool hwapi::sys_runCompleteTest(void) const
-
-
-
-
-
-
-
-
-    // ---------------------------------------------------------------------------------------------
-    // ---------------------------------------------------------------------------------------------
-    // ---------------------------------------------------------------------------------------------
-
 signals:
    virtual void hwapi_templatePrintFinished_OK(void) const=0;
    virtual void hwapi_templatePrintFinished_Err(void) const=0;
-
-    virtual void hwapi_coinCollectionJustStarted(void) const=0;
-    virtual void hwapi_coinCollectionAborted(void) const=0;
-
    virtual void hwapi_gotNewCoin(void) const=0;
-    virtual void hwapi_payStopByMax(void) const=0;
-    virtual void hwapi_payStopByPushbutton(void) const=0;
-
-    virtual void hwapi_payStopByEscrow(void) const=0;
-    virtual void hwapi_payStopByError(void) const=0;
-    virtual void hwapi_payStopByTimeout(void) const=0;
-    virtual void hwapi_payCancelled(void) const=0;
-
-    virtual void hwapi_coinProcessJustStopped(void) const=0;
+    virtual void hwapi_vendStopByMax(void) const=0;
+    virtual void hwapi_vendStopByPushbutton(void) const=0;

 };

--- a/include/sendWRcmd.h
+++ b/include/sendWRcmd.h
@@ -148,21 +148,23 @@


 // highest priority
-#define CMDSTACKDEPTH   16
+// #define CMDSTACKDEPTH   16
 // means: up to 16 cmd can be stored. They are issued one by one every 100ms
 void sendWRcmd_clrCmdStack(void);
-bool sendWRcmd_setSendCommand0(uint16_t nextCmd);
+bool sendWRcmd_setSendCommand0(uint16_t nextCmd, uint8_t dat1=0, uint8_t dat2=0,
+                               uint8_t dat3=0, uint8_t dat4=0);
    // GUI or app sends a command to DC transfered by serial

-uint16_t sendWRcmd_getSendCommand0(void);
+uint16_t sendWRcmd_getSendCommand0(uint8_t *dat1=0, uint8_t *dat2=0,
+                                   uint8_t *dat3=0, uint8_t *dat4=0);

 // lower priority
-#define CMD4STACKDEPTH   8
+// #define CMD4STACKDEPTH   8
 void sendWRcmd_clrCmd4Stack(void);
 bool sendWRcmd_setSendCommand4(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4);
 uint16_t sendWRcmd_getSendCommand4(uint8_t *dat1, uint8_t *dat2, uint8_t *dat3, uint8_t *dat4);

-#define CMD8STACKDEPTH   4
+// #define CMD8STACKDEPTH   4
 void sendWRcmd_clrCmd8Stack(void);
 bool sendWRcmd_setSendCommand8(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint16_t dat3, uint32_t dat4);
 uint16_t sendWRcmd_getSendCommand8(uint8_t *dat1, uint8_t *dat2, uint16_t *dat3, uint32_t *dat4);
@@ -171,7 +173,7 @@ uint16_t sendWRcmd_getSendCommand8(uint8_t *dat1, uint8_t *dat2, uint16_t *dat3,

 // lowest priority
 // wait for resonse before send next!
-bool sendWRcmd_setSendBlock160(uint8_t leng, uint8_t *buf);
+bool sendWRcmd_setSendBlock160(uint8_t leng, uint8_t const *buf);
 uint8_t sendWRcmd_getSendBlock160(uint8_t *leng, uint8_t *buf);
    // retval = *leng

@@ -179,7 +181,7 @@ void sendWRcmd_INI(void);



-uint8_t epi_store64ByteSendData(uint8_t length, uint8_t *buf);
+uint8_t epi_store64ByteSendData(uint8_t length, uint8_t const *buf);
    // HWapi writes data to be forwarded to DC and further to mdb-device
    // not batched! don't use twice within 100ms

@@ -211,7 +213,7 @@ uint8_t gpi_getUserOfSendingTextBuffer(uint8_t *para1, uint8_t *para2, uint8_t *
    // user=1: Text-Print is using this buffer
    //      2: QR-code-Printer is using this buffer

-#define     FDCMD_STACKDEPTH    16
+//#define     FDCMD_STACKDEPTH    16
 void sendFDcmd_clrStack(void);
 bool sendFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4);
    // write Command to memory, wait for transport
@@ -223,9 +225,9 @@ uint8_t check4FDshortCmd(void);
 uint8_t check4freeFDshortCmd(void);
    // returns number of free places in short-command stack

-#define     FDLONG_STACKDEPTH    16
+//#define     FDLONG_STACKDEPTH    16
 void longFDcmd_clrStack(void);
-bool longFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t length, uint8_t *data);
+bool longFDcmd_set(uint8_t nextWrCmd, uint8_t nextRdCmd, uint8_t blockNum, uint8_t length, uint8_t const *data);
    // write Command to memory, wait for transport
    // data buffer size always 64! data[64], padded with 0
 bool longFDcmd_get(uint8_t *nextWrCmd, uint8_t *nextRdCmd, uint8_t *blockNum, uint8_t *length, uint8_t *data);
@@ -237,14 +239,6 @@ uint8_t check4freeFDlongCmd(void);
    // returns number of free places in long-command stack


-
-uint8_t epi_store64BdevParameter(uint8_t length, uint8_t *buf);
-    // HWapi writes data to be stored
-
-uint8_t epi_restore64BdevParameter(uint8_t *length, uint8_t *buf);
-
-
-
 #endif


--- a/include/serial_port_thread.h
+++ b/include/serial_port_thread.h
@@ -0,0 +1,22 @@
+#ifndef SERIAL_PORT_THREAD_H_INCLUDED
+#define SERIAL_PORT_THREAD_H_INCLUDED
+
+#include <QThread>
+#include <QString>
+#include <QEventLoop>
+
+class SerialPortThread : public QThread {
+    Q_OBJECT
+
+    QEventLoop m_loop;
+public:
+    SerialPortThread(QObject *parent = nullptr);
+    virtual ~SerialPortThread();
+
+    virtual void run() override;
+
+    QEventLoop &getEventLoop() { return m_loop; }
+};
+
+
+#endif // SERIAL_PORT_THREAD_H_INCLUDED
--- a/include/serial_port_worker.h
+++ b/include/serial_port_worker.h
@@ -0,0 +1,121 @@
+#ifndef SERIAL_PORT_WORKER_H_INCLUDED
+#define SERIAL_PORT_WORKER_H_INCLUDED
+
+#include <QObject>
+#include <QString>
+#include <QTimer>
+#include <QSerialPort>
+#include <QSerialPortInfo>
+#include <QThread>
+
+#include <assert.h>
+#include <condition_variable>
+#include <mutex>
+#include <queue>
+#include <deque>
+#include <iostream>
+#include <atomic>
+
+
+struct Command {
+    enum : uint16_t {PRIORITY_1, PRIORITY_2, PRIORITY_3, PRIORITY_4, END_MARK};
+    enum : uint16_t {QUIT_SENTINEL = 0x1000, SEND_BLOCK_SIZE = 160};
+    uint32_t m_priority;
+    uint16_t m_priorityClass;
+    uint16_t m_cmdId;
+    char    *m_sendBuffer;
+    char    *m_recvBuffer;
+    uint8_t m_sendBufferLength;
+    uint8_t m_recvBufferLength; // expected result length
+
+    static std::atomic<uint8_t> m_nextSendBufferIndex;
+    static std::atomic<uint8_t> m_nextRecvBufferIndex;
+    static char m_sendBuffers[256][SEND_BLOCK_SIZE];
+    static char m_recvBuffers[256][SEND_BLOCK_SIZE];
+
+    static uint32_t getNextCommandPriority(uint8_t cmdType);
+    static char *getNextSendBuffer();
+    static char *getNextRecvBuffer();
+
+ public:
+    Command(uint16_t cmdId, uint8_t sendBufferLength, uint8_t recvBufferLength, uint8_t priorityClass);
+    Command();
+
+    friend bool operator< (Command const& lhs, Command const& rhs) {
+        return lhs.m_priority < rhs.m_priority;
+    }
+
+    friend std::ostream& operator<< (std::ostream& os, Command const& cmd) {
+        return os << "{ " << cmd.m_priority << ", '" << cmd.m_priority << "' } ";
+    }
+};
+
+/// \brief SerialPortWorker
+///
+/// SerialPortWorker sends and receives data from serial port
+///
+class SerialPortWorker : public QThread {
+    Q_OBJECT
+
+    /// \brief Internal serial port.
+    QSerialPort m_serialPort;
+
+    /// \brief Internal serial port info.
+    QSerialPortInfo m_serialPortInfo;
+
+    /// \brief Flag indicating if serial port is opened.
+    bool m_serialPortOpened;
+
+    /// \brief Port name of serial port.
+    QString     m_portName;
+
+    /// \brief Baudrate of internal serial port.
+    enum QSerialPort::BaudRate m_baudRate;
+
+    std::priority_queue<Command, std::deque<Command>> m_sendQueue;
+    std::deque<Command> m_recvQueue;
+    std::mutex m_sendQueueMutex;
+    std::mutex m_recvQueueMutex;
+    std::condition_variable m_sendQueueCondVar;
+    std::condition_variable m_recvQueueCondVar;
+
+    std::atomic<uint32_t> m_bytesWritten;
+    std::atomic<uint32_t> m_bytesAvailable;
+
+    SerialPortWorker(QString portName, QSerialPort::BaudRate baudRate, QObject *parent = nullptr);
+
+    Command getNextCommand();
+    void insertResult(Command const &result);
+
+    enum : uint16_t {TIMEOUT = 100, WAIT_TIME_MAX = 1000};
+
+  public:
+    ~SerialPortWorker();
+
+    SerialPortWorker(SerialPortWorker const &) = delete;
+    void operator=(SerialPortWorker const &) = delete;
+
+    // serial port im plugin anlegen. erst dann kann getInstance() benutzt werden
+    static SerialPortWorker &getInstance(QString portName, QSerialPort::BaudRate baudRate, QObject *parent = nullptr) {
+        static SerialPortWorker serialPortWorker(portName, baudRate, parent);
+        return serialPortWorker;
+    }
+
+    bool openSerialPort();
+    void closeSerialPort();
+
+    bool isPortOpen() const { return m_serialPortOpened; }
+
+    void insertCommand(Command const &cmd);
+    bool getNextResult(Command &result, int timeout = 1000);
+
+    virtual void run() override;
+
+    void quit();
+
+private slots:
+    void getBytesAvailable();
+    bool getNumberOfBytesWritten(qint64);
+};
+
+#endif // SERIAL_PORT_WORKER_H_INCLUDED
--- a/include/shared_mem_buffer.h
+++ b/include/shared_mem_buffer.h
@@ -6,7 +6,33 @@

 #include <QSharedMemory>

+// TODO: pid eintragen und convars/mutexe eintragen
+
+#ifdef __linux__
+
+
+#include <pthread.h>
+
+// PTHREAD_PROCESS_SHARED
+
+#else
+// WIN32
+#endif
+
 struct SharedMemBuffer {
+    int init;
+    char appName[32];
+    pid_t pid;
+    pthread_condattr_t sndCndA;
+    pthread_cond_t sndCndV;
+    pthread_mutexattr_t sndMtxA;
+    pthread_mutex_t sndMtx;
+
+    pthread_condattr_t rcvCndA;
+    pthread_cond_t rcvCndV;
+    pthread_mutexattr_t rcvMtxA;
+    pthread_mutex_t rcvMtx;
+
    struct rs {
        char comportName[16]; // z.B. "COM48"
        char baudStr[16];     // z.B. "19200"
@@ -18,109 +44,130 @@ struct SharedMemBuffer {
    char AutoEmissionOn;     // 1: zyklisch Anfragen zum Slave senden

    struct datif {
+#define DATIF_MAXCMDS 16
        uint16_t sendingPeriod;
        bool     sendingPer_changed;
+        uint8_t  OutCmdpara1;
+        uint8_t  OutCmdpara2;
+        uint8_t  OutCmdpara3;
+        uint8_t  OutCmdpara4;
+        uint16_t OutCmdpara5;
+        uint32_t OutCmdpara6;
+        uint8_t  dataStep;
+        uint8_t  scanStep;
+        uint8_t  RDBLKNR;
+        uint8_t  cycl_running;
    } datif;

-#if 0
-    // controlBus.cpp
-    char        txt4comStateLine[32];
-    char        txt4HsStateLine[32];
-    char        txt4masterStateLine[32];
-    char        txt4resultStateLine[32];
-    char        txt4dataLine[32];
-    char        txt4datifReceive[32];
-    char        txt4diagWindow[32];
-    char        sndTxt4diagWindow[32];
-    bool        Sdata_serialTestResult[32];
-    uint8_t     Sdata_pProtResultOk[32];
-    uint16_t    Sdata_receivedDataLength[32];
-    uint8_t     Sdata_receivedDataBlock[64];
+    struct txt4 {
+        char comStateLine[32];
+        char HsStateLine[32];
+        char masterStateLine[32];
+        char resultStateLine[32];
+        char dataLine[32];
+        char datifReceive[32];
+        char diagWindow[32];
+        char sndDiagWindow[32];
+    } txt4;

-    // datif.cpp
-    uint8_t     dif_dataStep;
-    uint8_t     dif_scanStep;
-    uint8_t     RDBLKNR;
-    uint8_t     datif_OutCmdpara1;
-    uint8_t     datif_OutCmdpara2;
-    uint8_t     datif_OutCmdpara3;
-    uint8_t     datif_OutCmdpara4;
+    struct dcBL {
+#define SIZEBLRESP      50
+#define RAW_BL_DATALEN 150
+        uint8_t  LastBLcmd;   // stored the last sent cmd in order to analys response
+        uint8_t  AtbBinFile[300000];
+        uint32_t fileSize;
+        uint16_t nrOfBlocks;
+        uint16_t fileCrc;
+        uint8_t  myBuf[300000]; // same content like "dcBL_AtbBinFile" but bytewise
+        char     Resp[SIZEBLRESP][32];
+        int      pResp;
+        uint8_t  step;
+        uint8_t  state;
+        uint16_t BlkCtr;
+        uint16_t cyclCtr;
+        uint16_t repeatCtr;
+    } dcBL;

-    uint16_t    datif_OutCmdpara5;
-    uint32_t    datif_OutCmdpara6;
-    uint8_t     cycl_running;
+    struct {
+        uint16_t shutterTime;
+        char ticketTemplate[1024];
+    } hwapi;

-    // dcBL.cpp
-    uint8_t     dcBL_LastBLcmd;   // stored the last sent cmd in order to analys response
-    uint8_t     dcBL_AtbBinFile[300000];
-    uint32_t    dcBL_fileSize;
-    uint16_t    dcBL_nrOfBlocks;
-    uint16_t    dcBL_fileCrc;
-    uint8_t     dcBL_myBuf[300000]; // same content like "dcBL_AtbBinFile" but bytewise
+    struct {
+        uint8_t  sendAsynchDataBuf[160]; // no stack, only ONE buffer
+        uint8_t  sendAsyDatLen;
+    } next;

-    char        BlResp[50][32];
-    uint8_t     dcBL_step;
-    uint8_t     dcBL_state;
-    uint16_t    dcBL_BlkCtr;
-    uint16_t    dcBL_cyclCtr;
-    uint16_t    repeatCtr;
-    uint8_t     Sdata_rawData[150];
-    uint8_t     Sdata_LengthRawData;
+    struct { // highest priority
+#define CMDSTACKDEPTH  16
+        // up to 16 cmd can be stored. They are issued one by one every 100ms
+        uint16_t AsynchSend[CMDSTACKDEPTH];
+        uint8_t  para1[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  para2[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  para3[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  para4[CMDSTACKDEPTH];  /* used to streamline source */
+        uint8_t  nrOfCmdsInQueue;
+    } Cmd0;

-    // hwapi.cpp
-    uint16_t    hwapi_shutterTime;
-    char        ticketTemplate[1024];
+    struct { // lower priority
+             // Command Stack for commands with 4 parameters
+#define CMD4STACKDEPTH   8
+        uint16_t AsynchSend[CMD4STACKDEPTH];
+        uint8_t  para1[CMD4STACKDEPTH];
+        uint8_t  para2[CMD4STACKDEPTH];
+        uint8_t  para3[CMD4STACKDEPTH];
+        uint8_t  para4[CMD4STACKDEPTH];
+        uint8_t  nrOfCmdsInQueue;
+    } Cmd4;

-    // sendWRcmd.cpp
-    uint16_t    nextAsynchsendCmd0[16];
-    uint8_t     nrOfCmdsInQueue;
-    uint16_t    nextAsynchsendCmd4[8];
-    uint8_t     nextCmd4para1[8];
-    uint8_t     nextCmd4para2[8];
-    uint8_t     nextCmd4para3[8];
-    uint8_t     nextCmd4para4[8];
-    uint8_t     nrOfCmds4InQueue;
-    uint16_t    nextAsynchsendCmd8[4];
-    uint8_t     nextCmd8para1[4];
-    uint8_t     nextCmd8para2[4];
-    uint16_t    nextCmd8para3[4];
-    uint32_t    nextCmd8para4[4];
-    uint8_t     nrOfCmds8InQueue;
-    uint8_t     sendAsynchDataBuf[160]; // no stack, only ONE buffer
-    uint8_t     sendAsyDatLen;
-    uint8_t     Sdata_mdbSendBuffer[64];
-    uint8_t     Sdata_mdbSendLen;
-    uint8_t     prnDataParameters[4];
-    uint8_t     prnDataBufferUser;
-    char        Sdata_PRN_TEXT[20][64];
-    uint8_t     pPrnDataBuff;        // points to next PRINTER_BLOCK
-    uint8_t     nextFDwrCmd[16];
-    uint8_t     nextFDrdCmd[16];
-    uint8_t     nextFDblkNr[16];
+    struct {
+#define CMD8STACKDEPTH   4
+        uint16_t AsynchSend[CMD8STACKDEPTH];
+        uint8_t  para1[CMD8STACKDEPTH];
+        uint8_t  para2[CMD8STACKDEPTH];
+        uint16_t para3[CMD8STACKDEPTH];
+        uint32_t para4[CMD8STACKDEPTH];
+        uint8_t  nrOfCmdsInQueue;
+    } Cmd8;

-    uint8_t     nextFDpara1[16];
-    uint8_t     nextFDpara2[16];
-    uint8_t     nextFDpara3[16];
-    uint8_t     nextFDpara4[16];
-    uint8_t     p_nextFDcmdsInQueue;
-    uint8_t     longFDwrCmd[16];
-    uint8_t     longFDrdCmd[16];
-    uint8_t     longFDblkNr[16];
-    uint8_t     longFDlength[16];
+    struct { // short command, 4 data bytes
+#define FDCMD_STACKDEPTH 16
+        uint8_t  wrCmd[FDCMD_STACKDEPTH];
+        uint8_t  rdCmd[FDCMD_STACKDEPTH];
+        uint8_t  blkNr[FDCMD_STACKDEPTH];
+        uint8_t  para1[FDCMD_STACKDEPTH];
+        uint8_t  para2[FDCMD_STACKDEPTH];
+        uint8_t  para3[FDCMD_STACKDEPTH];
+        uint8_t  para4[FDCMD_STACKDEPTH];
+        uint8_t  cmdsInQueue;
+    } FDShort;

-    uint8_t     longFDpara[16][64];
-    uint8_t     p_longFDcmdsInQueue;
+    struct { // long command, 64 data bytes
+#define FDLONG_STACKDEPTH 16
+        uint8_t wrCmd[FDLONG_STACKDEPTH];
+        uint8_t rdCmd[FDLONG_STACKDEPTH];
+        uint8_t blkNr[FDLONG_STACKDEPTH];
+        uint8_t length[FDLONG_STACKDEPTH];
+        uint8_t para[FDLONG_STACKDEPTH][64];
+        uint8_t cmdsInQueue;
+    } FDLong;

-    // storeInData.cpp
-    bool        indat_savePrnPwr;
-    bool        indat_saveMifPwr;
-    bool        indat_MdbIsOn;
-#endif
+    struct {
+        uint8_t DataParameters[4];
+        uint8_t DataBufferUser;
+        uint8_t pDataBuff;        // points to next PRINTER_BLOCK
+    } prn;

-    uint8_t     ndbs;
-    uint8_t     pari;
-    uint8_t     nsb;
-    uint8_t     br;
+    struct {
+        bool savePrnPwr;
+        bool saveMifPwr;
+        bool MdbIsOn;
+    } indat;
+
+    uint8_t ndbs;
+    uint8_t pari;
+    uint8_t nsb;
+    uint8_t br;

 #define MAXNROF_GENSTR 16
    char        genStrings[MAXNROF_GENSTR][64];
@@ -170,10 +217,13 @@ struct SharedMemBuffer {
 #define NROFMIFSTATEBYTES       40
 #define PRN_STATE_ARRAY_SIZE    20
 #define PRN_STATE_FONT_SIZE     20
+#define MAXNROF_PRNBYTES   64
+#define MAXNROF_PRNBLOCKS  20
        uint8_t MIF_STATE[NROFMIFSTATEBYTES];
        uint8_t MIF_DATA[12][64];
        uint8_t PRN_STATE[PRN_STATE_ARRAY_SIZE];
        uint8_t PRN_FONTS[PRN_STATE_FONT_SIZE];
+        char PRN_TEXT[MAXNROF_PRNBLOCKS][MAXNROF_PRNBYTES];
        bool mdb_busRdy;
        bool mdb_V12on;
        bool mdb_V5on;
@@ -193,6 +243,10 @@ struct SharedMemBuffer {
        uint8_t pProtResultOk;
        uint16_t receivedDataLength;
        uint8_t receivedDataBlock[64];
+        uint8_t rawData[150];
+        uint8_t LengthRawData;
+        uint8_t mdbSendBuffer[64];
+        uint8_t mdbSendLen;
    } Sdata;

    uint8_t mif_cardType;
@@ -225,9 +279,6 @@ struct SharedMemBuffer {
        uint8_t vaultrecord[360];
        uint32_t amount;
        uint16_t nrOfCoins;
-        bool    dcDataValid;
-        uint8_t wakeReason;
-        char    curPayNewCoin;
    } store;

    struct T_globTime {
--- a/include/storeINdata.h
+++ b/include/storeINdata.h
@@ -3,7 +3,7 @@
 #define STOREINDATA_H

 #include <stdint.h>
-//#include "tslib.h"
+#include "tslib.h"
 #include <QString>


@@ -384,7 +384,6 @@ bool epi_CurrentPaymentGetAllCoins(uint16_t *types, uint16_t *values);

 void gpi_storeWakeSources(uint8_t const *receivedData);
 uint64_t epi_getWakeSources(void);
-uint8_t epi_getWakeReason(void);

 void gpi_storeExtendedTime(uint8_t leng, uint8_t const *data);
 void epi_restoreExtendedTime(uint8_t *leng, uint8_t *data);
@@ -416,12 +415,6 @@ uint8_t epi_mifGetCardType(uint8_t const *holder);
    //holder[8] = name of card holder
    // retval Type of MifareCard, 1=upper door, 2=lower door 3=test printer 4=test coins

-void gpi_storeDcDataValid(bool isVal);
-bool gpi_areDcDataValid();
-bool epi_areDcDataValid();
-
-
-
 #endif


--- a/plugins/interfaces.h
+++ b/plugins/interfaces.h
--- a/src/ATBAPP/ATBAPPplugin.h
+++ b/src/ATBAPP/ATBAPPplugin.h
@@ -1,22 +0,0 @@
-#ifndef ATBAPPPLUGIN_H
-#define ATBAPPPLUGIN_H
-
-/***********************************************************
- * a simple class with only one method for plugin info
- */
-#include <QObject>
-#include <QString>
-
-class ATBAPPplugin
-{
-
-public:
-    virtual const QString & getPluginInfo() = 0;
-};
-
-Q_DECLARE_INTERFACE(ATBAPPplugin,
-                    "eu.atb.ptu.plugin.ATBAPPplugin/0.9")
-
-
-
-#endif // ATBAPPPLUGIN_H
--- a/src/ATBAPP/ATBDeviceControllerPlugin.cpp
+++ b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
@@ -1,316 +0,0 @@
-#include "src/ATBAPP/ATBDeviceControllerPlugin.h"
-#include "src/ATBAPP/ATBHealthEvent.h"
-
-#include <QTimer>
-#include <QTextCodec>
-
-
-ATBDeviceControllerPlugin::ATBDeviceControllerPlugin(QObject *parent) : QObject(parent),
-    pluginState(PLUGIN_STATE::NOT_INITIALIZED)
-{
-    this->pluginInfo = QString::fromUtf8(pluginInfoString.c_str());
-
-    this->hw = new hwapi();
-
-    connect(dynamic_cast<QObject*>(hw), SIGNAL(hwapi_templatePrintFinished_OK()),  this, SLOT(onPrintFinishedOK()));
-    connect(dynamic_cast<QObject*>(hw), SIGNAL(hwapi_templatePrintFinished_Err()), this, SLOT(onPrintFinishedERR()));
-    connect(dynamic_cast<QObject*>(hw), SIGNAL(hwapi_gotNewCoin()),    this, SLOT(onCashGotCoin()));
-    connect(dynamic_cast<QObject*>(hw), SIGNAL(hwapi_vendStopByMax()), this, SLOT(onCashVendStopByMax()));
-}
-
-ATBDeviceControllerPlugin::~ATBDeviceControllerPlugin() {}
-
-PLUGIN_STATE ATBDeviceControllerPlugin::initDCPlugin(QObject *healthEventReceiver, const QSettings & settings)
-{
-    this->healthEventReceiver = healthEventReceiver;
-
-    // read variables from setting
-    QString serialPort = settings.value("DEVICE_CONTROLLER/serialPort", "ttymxc2").toString();
-    QByteArray printerEncoding = settings.value("DEVICE_CONTROLLER/printerEnconding", "ISO 8859-2").toString().toLatin1();
-
-
-
-    // open serial port
-    hw->dc_openSerial(5, "115200", serialPort, 1);
-
-
-    // text encoding for printer
-    this->codec = QTextCodec::codecForName(printerEncoding);
-
-
-
-    this->pluginState = PLUGIN_STATE::INITIALIZED;
-
-    return pluginState;
-}
-
-
-// TASKS: Cash handling -------------------------------------------------------
-void ATBDeviceControllerPlugin::requestStartCashInput(const QString & amount)
-{
-    qCritical() << "Start Cash vending with amount = " << amount;
-
-    uint32_t amountInt = static_cast<uint32_t>(amount.toUInt());
-
-    hw->cash_startPayment(amountInt);
-}
-
-void ATBDeviceControllerPlugin::requestStopCashInput()
-{
-    hw->cash_stopPayment();
-}
-
-void ATBDeviceControllerPlugin::cashCollect()
-{
-    hw->vend_success();
-}
-
-void ATBDeviceControllerPlugin::cashAbort()
-{
-    hw->vend_failed();
-}
-
-
-// TASKS: printing ------------------------------------------------------------
-void ATBDeviceControllerPlugin::requestPrintTicket(const QHash<QString, QVariant> & printingData)
-{
-    struct T_dynDat *dynTicketData = new T_dynDat;
-    memset(dynTicketData, 0, sizeof(*dynTicketData));
-
-    qCritical() << "ATBDeviceControllerPlugin::requestPrintTicket( "         << endl
-                << "     licenseplate = " << printingData["licenseplate"]    << endl
-                << "           amount = " << printingData["amount"]          << endl
-                << "       parkingEnd = " << printingData["parkingEnd"]      << endl
-                << "  currentDateTime = " << printingData["currentDateTime"] << endl;
-
-    QDateTime parkingEndDateTime = QDateTime::fromString(printingData["parkingEnd"].toString(),  Qt::ISODate);
-    QDateTime currentDateTime    = QDateTime::fromString(printingData["currentDateTime"].toString(), Qt::ISODate);
-
-    /* -----------------------------------------------------------------------------------------
-     * note: the following highly depends on printer template files!
-     * -----------------------------------------------------------------------------------------
-     */
-
-    // set dynamic printer data:
-    QByteArray ba_licenseplate = codec->fromUnicode(printingData["licenseplate"].toString());
-    memcpy((char*)dynTicketData->licensePlate, ba_licenseplate.data(), std::min(ba_licenseplate.size(),8));
-
-    QByteArray ba_amount = codec->fromUnicode(printingData["amount"].toString());
-    memcpy((char*)dynTicketData->vendingPrice,  ba_amount.data(), std::min(ba_amount.size(),8));
-
-    QByteArray ba_parkingEndTime = codec->fromUnicode(parkingEndDateTime.toString("hh:mm"));
-    memcpy((char*)dynTicketData->parkingEndTime,  ba_parkingEndTime.data(), std::min(ba_parkingEndTime.size(),8));
-
-    QByteArray ba_parkingEndDate = codec->fromUnicode(parkingEndDateTime.toString("dd.MM.yy"));
-    memcpy((char*)dynTicketData->parkingEndDate,  ba_parkingEndDate.data(), std::min(ba_parkingEndDate.size(),8));
-
-    QByteArray ba_currentDate = codec->fromUnicode(currentDateTime.toString("dd.MM.yy"));
-    memcpy((char*)dynTicketData->currentDate,  ba_currentDate.data(), std::min(ba_currentDate.size(),8));
-
-
-    // DEBUG
-    /*
-    uint8_t* buf = dynTicketData->licensePlate;
-    int length = 64;
-    for (int i = 0; i < length; ++i) {
-            fprintf(stderr, "%d %02x %c\n", i, buf[i], buf[i]);
-    }
-    fprintf(stderr, "\n");
-    */
-
-    // DEBUG
-    qCritical() << "ATBDeviceControllerPlugin::requestPrintTicket()";
-
-    if (!this->hw->dc_isPortOpen()) {
-        qCritical() << "    ... serial port is not open!";
-        this->onPrintFinishedERR();
-        return;
-    }
-
-
-    // TODO: wird hier nur 'licensePlate' gedruckt?
-    if (!this->hw->prn_sendDynamicPrnValues(dynTicketData->licensePlate)) {
-        this->errorCode = "hwapi::prn_sendDynamicPrnValues";
-        this->errorDescription = "hwapi method 'hwapi::prn_sendDynamicPrnValues' result is false";
-
-        qCritical() << "ERROR:";
-        qCritical() << "ATBDeviceControllerPlugin::requestPrintTicket( "        << endl
-                    << "     licenseplate = " << printingData["licenseplate"]   << endl
-                    << "           amount = " << printingData["amount"]         << endl
-                    << "       parkingEnd = " << printingData["parkingEnd"]     << endl
-                    << "      currentTime = " << printingData["currentTime"]    << endl
-                    << "      currentDate = " << printingData["currentDate"]    << endl;
-
-
-        this->onPrintFinishedERR();
-        return;
-    }
-
-    QTimer::singleShot(500, this, SLOT(onPrinterDataPrepared()));
-}
-
-
-
-void ATBDeviceControllerPlugin::onPrinterDataPrepared()
-{
-    this->currentTemplate = 1;
-    this->onPrinterPrintNextTemplate();
-}
-
-
-void ATBDeviceControllerPlugin::onPrinterPrintNextTemplate()
-{
-    qCritical() << "     ... print template " << this->currentTemplate;
-
-    if (!this->hw->prn_printTemplate(this->currentTemplate)) {
-        this->errorCode = "hwapi::prn_printTemplate";
-        this->errorDescription = QString("hwapi method 'hwapi::onPrinterPrintNextTemplate(%1)' result is false").arg(this->currentTemplate);
-        this->onPrintFinishedERR();
-        return;
-    }
-
-    if (this->currentTemplate >= 3) {
-        // all templates are printed
-        this->currentTemplate = 0;
-
-        // FAKE SIGNAL:
-        QTimer::singleShot(500, this, SLOT(onPrintFinishedOK()));
-    }
-    else {
-        // print next template
-        this->currentTemplate++;
-        QTimer::singleShot(1000, this, SLOT(onPrinterPrintNextTemplate()));
-    }
-
-}
-
-
-/************************************************************************************************
- * private slots, interface to low level hwapi
- *
- */
-void ATBDeviceControllerPlugin::onPrintFinishedOK()
-{
-    // DEBUG
-    qCritical() << "ATBDeviceControllerPlugin::onPrintFinishedOK()";
-
-    emit this->printTicketFinished(nsDeviceControllerInterface::RESULT_STATE::SUCCESS,
-                                   "",
-                                   "");
-}
-void ATBDeviceControllerPlugin::onPrintFinishedERR()
-{
-    // DEBUG
-    qCritical() << "ATBDeviceControllerPlugin::onPrintFinishedERR()";
-
-
-    this->errorCode = "PRINTER";               // TODO: get more detailed error code from low level API
-    this->errorDescription = "Printer error";  // TODO: get more detailed error description from low level API
-
-    emit this->printTicketFinished(nsDeviceControllerInterface::RESULT_STATE::ERROR_BACKEND,
-                                   this->errorCode,
-                                   this->errorDescription);
-}
-
-
-
-/************************************************************************************************
- * cash payment
- */
-void ATBDeviceControllerPlugin::onCashGotCoin()
-{
-    // DEBUG
-    qCritical() << "ATBDeviceControllerPlugin::onGotCoin()";
-
-    uint32_t amountInt = this->hw->getInsertedAmount();
-
-    QString amountString = QString::number(amountInt);
-
-
-    emit this->cashInputEvent(nsDeviceControllerInterface::RESULT_STATE::SUCCESS,
-                              nsDeviceControllerInterface::CASH_STATE::CACHE_INPUT,
-                              amountString,
-                              "",
-                              "");
-}
-
-
-void ATBDeviceControllerPlugin::onCashVendStopByMax()
-{
-    // DEBUG
-    qCritical() << "ATBDeviceControllerPlugin::onCashVendStopByMax()";
-
-    uint32_t amountInt = this->hw->getInsertedAmount();
-
-    QString amountString = QString::number(amountInt);
-
-    emit this->cashInputFinished(nsDeviceControllerInterface::RESULT_STATE::SUCCESS,
-                              amountString,
-                              "",
-                              "");
-
-}
-
-/************************************************************************************************
- * Mandatory plugin methods
- *
- */
-
-PLUGIN_STATE ATBDeviceControllerPlugin::getState()
-{
-    return this->pluginState;
-}
-
-QString & ATBDeviceControllerPlugin::getLastError()
-{
-    return this->errorCode;
-}
-
-const QString & ATBDeviceControllerPlugin::getLastErrorDescription()
-{
-    return this->errorDescription;
-}
-
-const QString & ATBDeviceControllerPlugin::getPluginInfo()
-{
-    return this->pluginInfo;
-}
-
-
-const QString ATBDeviceControllerPlugin::getString(nsDeviceControllerInterface::RESULT_STATE resultState)
-{
-    QString str;
-
-    switch (resultState) {
-    case nsDeviceControllerInterface::RESULT_STATE::SUCCESS:
-        str = QString("RESULT_STATE::SUCCESS");
-        break;
-    case nsDeviceControllerInterface::RESULT_STATE::ERROR_BACKEND:
-        str = QString("RESULT_STATE::ERROR_BACKEND");
-        break;
-    case nsDeviceControllerInterface::RESULT_STATE::ERROR_TIMEOUT:
-        str = QString("RESULT_STATE::ERROR_TIMEOUT");
-        break;
-    case nsDeviceControllerInterface::RESULT_STATE::ERROR_PROCESS:
-        str = QString("RESULT_STATE::ERROR_PROCESS");
-        break;
-    case nsDeviceControllerInterface::RESULT_STATE::ERROR_RETRY:
-        str = QString("RESULT_STATE::ERROR_RETRY");
-        break;
-    case nsDeviceControllerInterface::RESULT_STATE::INFO:
-        str = QString("RESULT_STATE::INFO");
-        break;
-    }
-    return str;
-
-}
-
-
-
-/************************************************************************************************
- * ... end
- */
-
-#if QT_VERSION < 0x050000
-Q_EXPORT_PLUGIN2( ATBDeviceControllerPlugin, ATBDeviceControllerPlugin )
-#endif
--- a/src/ATBAPP/ATBDeviceControllerPlugin.h
+++ b/src/ATBAPP/ATBDeviceControllerPlugin.h
@@ -1,125 +0,0 @@
-#ifndef ATBDEVICECONTROLLERPLUGIN_H
-#define ATBDEVICECONTROLLERPLUGIN_H
-
-#include <QObject>
-
-#include "src/ATBAPP/DeviceControllerInterface.h"
-#include "src/ATBAPP/ATBAPPplugin.h"
-#include "version.h"
-
-
-
-#include "hwapi.h"
-
-#include <unistd.h>
-#include <thread>
-#include <memory>
-#include <QSharedMemory>
-
-
-class QTextCodec;
-
-
-using namespace nsDeviceControllerInterface;
-
-class QSettings;
-
-class ATBDeviceControllerPlugin : public QObject,
-        public DeviceControllerInterface
-{
-    Q_OBJECT
-    Q_INTERFACES(ATBAPPplugin)
-    Q_INTERFACES(DeviceControllerInterface)
-    #if QT_VERSION >= 0x050000
-    Q_PLUGIN_METADATA( IID "ATBDeviceControllerPlugin" )
-    #endif
-
-public:
-    explicit ATBDeviceControllerPlugin(QObject *parent = nullptr);
-    ~ATBDeviceControllerPlugin();
-
-    // ----------------------------------------------------------------------------
-    // interface:
-    PLUGIN_STATE initDCPlugin(QObject *healthEventReceiver, const QSettings & settings);
-
-    // TASKS: Cash handling -------------------------------------------------------
-    void requestStartCashInput(const QString & amount);
-    void requestStopCashInput();
-    void cashCollect();
-    void cashAbort();
-
-    // TASKS: printing ------------------------------------------------------------
-    void requestPrintTicket(const QHash<QString, QVariant> & printingData);
-
-    // mandantory ATBAPP plugin methods: ------------------------------------------
-    nsDeviceControllerInterface::PLUGIN_STATE getState();
-    QString & getLastError();
-    const QString & getLastErrorDescription();
-
-    const QString & getPluginInfo();
-
-    // helpers e.g. for debug / log
-    const QString getString(nsDeviceControllerInterface::RESULT_STATE resultState);
-
-
-
-
-
-signals:
-    void printTicketFinished(nsDeviceControllerInterface::RESULT_STATE resultState,
-                                     const QString & errorCode,
-                                     const QString & errorDescription);
-
-    void cashInputEvent(nsDeviceControllerInterface::RESULT_STATE resultState,
-                        nsDeviceControllerInterface::CASH_STATE cashState,
-                        const QString & newCashValue,
-                        const QString & errorCode,
-                        const QString & errorDescription);
-
-    void cashInputFinished(nsDeviceControllerInterface::RESULT_STATE resultState,
-                                     const QString & newCashValue,
-                                     const QString & errorCode,
-                                     const QString & errorDescription);
-
-    void requestServiceMode();
-
-    void Error(
-            const QString & errorCode,
-            const QString & errorDescription);
-
-
-
-
-private:
-   QString errorCode;
-   QString errorDescription;
-   QString pluginInfo;
-
-   int currentTemplate;
-
-
-   bool useDebug;
-
-   PLUGIN_STATE pluginState;
-
-   QObject* healthEventReceiver;
-
-   hwinf* hw;
-
-   QTextCodec *codec;
-
-private slots:
-   // printer
-
-   void onPrinterDataPrepared();
-   void onPrinterPrintNextTemplate();
-
-   void onPrintFinishedOK();
-   void onPrintFinishedERR();
-
-   // cash payment
-   void onCashGotCoin();
-   void onCashVendStopByMax();
-};
-
-#endif // ATBDEVICECONTROLLERPLUGIN_H
--- a/src/ATBAPP/ATBHealthEvent.cpp
+++ b/src/ATBAPP/ATBHealthEvent.cpp
@@ -1,25 +0,0 @@
-#include "src/ATBAPP/ATBHealthEvent.h"
-
-ATBHealthEvent::ATBHealthEvent(ATB_HEALTH_MODE mode, const QString & errorNumber, const QString & errorDescription) :
-    QEvent(ATB_HEALTH_EVENT),
-    healthMode(mode),
-    errorNumber(errorNumber),
-    errorDescription(errorDescription)
-{
-
-}
-
-QString ATBHealthEvent::getErrorNumber()
-{
-    return this->errorNumber;
-}
-
-QString ATBHealthEvent::getErrorDescription()
-{
-    return this->errorDescription;
-}
-
-ATB_HEALTH_MODE ATBHealthEvent::getMode()
-{
-    return this->healthMode;
-}
--- a/src/ATBAPP/ATBHealthEvent.h
+++ b/src/ATBAPP/ATBHealthEvent.h
@@ -1,44 +0,0 @@
-#ifndef ATBHEALTHEVENT_H
-#define ATBHEALTHEVENT_H
-
-#include <QEvent>
-#include <QString>
-
-enum class ATB_HEALTH_MODE : quint8;
-
-const QEvent::Type ATB_HEALTH_EVENT = static_cast<QEvent::Type>(QEvent::User + 1);
-
-
-class ATBHealthEvent : public QEvent
-{
-
-public:
-    ATBHealthEvent(ATB_HEALTH_MODE mode, const QString & errorNumber, const QString & errorDescription);
-
-    QString getErrorNumber();
-    QString getErrorDescription();
-    ATB_HEALTH_MODE getMode();
-
-signals:
-
-public slots:
-
-
-private:
-    ATB_HEALTH_MODE healthMode;
-    QString errorNumber;
-    QString errorDescription;
-};
-
-
-enum class ATB_HEALTH_MODE : quint8 {
-    WARNING,
-    ERROR,
-    WARNING_CORRECTION,
-    ERROR_CORRECTION,
-    DEBUG,
-    STATE,
-    UNSPECIFIED
-};
-
-#endif // ATBHEALTHEVENT_H
--- a/src/ATBAPP/DeviceControllerInterface.h
+++ b/src/ATBAPP/DeviceControllerInterface.h
@@ -1,142 +0,0 @@
-#ifndef DEVICECONTROLLERINTERFACE_H
-#define DEVICECONTROLLERINTERFACE_H
-
-#include <QtPlugin>
-
-#include <QSettings>
-#include <QString>
-
-#include "ATBAPPplugin.h"
-
-namespace nsDeviceControllerInterface {
-    enum class PLUGIN_STATE : quint8;
-    enum class RESULT_STATE : quint8;
-    enum class CASH_STATE   : quint8;
-}
-
-
-class DeviceControllerInterface : public ATBAPPplugin
-{
-    Q_INTERFACES(ATBAPPplugin)
-
-public:
-    virtual ~DeviceControllerInterface() {}
-
-    virtual nsDeviceControllerInterface::PLUGIN_STATE initDCPlugin(QObject *healthEventReceiver,
-                                                                   const QSettings & settings) = 0;
-
-    // TASKS: Cash handling -------------------------------------------------------
-    /**
-     * enables coin input
-     * amount = "0": pay-up
-     * amount > "0": pay-down
-     */
-    virtual void requestStartCashInput(const QString & amount) = 0;
-
-    /**
-     * called e.g. on Button "NEXT" in pay-up (direct coin input)
-     */
-    virtual void requestStopCashInput() = 0;
-
-    /**
-     * called e.g. on Button "NEXT" in pay-up (direct coin input)
-     */
-    virtual void cashCollect() = 0;
-    virtual void cashAbort() = 0;
-
-
-
-    // TASKS: printing ------------------------------------------------------------
-    virtual void requestPrintTicket(const QHash<QString, QVariant> & printingData) = 0;
-
-
-    // mandantory ATBAPP plugin methods:
-    virtual nsDeviceControllerInterface::PLUGIN_STATE getState() = 0;
-    virtual const QString & getLastError() = 0;
-    virtual const QString & getLastErrorDescription() = 0;
-
-    // return a plugin description in JSON or XML
-    // -> ATBAPPplugin::getPluginInfo()
-
-    // helpers e.g. for debug / log
-    virtual const QString getString(nsDeviceControllerInterface::RESULT_STATE resultState) = 0;
-
-
-signals:
-    virtual void printTicketFinished(nsDeviceControllerInterface::RESULT_STATE resultState,
-                                     const QString & errorCode,
-                                     const QString & errorDescription) = 0;
-
-    /**
-     * emitted on e.g. a coin input
-     */
-    virtual void cashInputEvent(nsDeviceControllerInterface::RESULT_STATE resultState,
-                                nsDeviceControllerInterface::CASH_STATE cashState,
-                                const QString & newCashValue,
-                                /* additional variables? */
-                                const QString & errorCode,
-                                const QString & errorDescription) = 0;
-
-    /**
-     * emitted if cashInput has been stopped, e.g. in result to task requestStopCashInput():
-     *  -> shutter is blocked
-     *  -> no cash input is possible
-     *  -> coins are in cache
-     */
-    virtual void cashInputFinished(nsDeviceControllerInterface::RESULT_STATE resultState,
-                                     const QString & newCashValue,
-                                     /*  additional variables? */
-                                     const QString & errorCode,
-                                     const QString & errorDescription) = 0;
-
-
-    /**
-     * emitted e.g. if service door is opened
-     */
-    virtual void requestServiceMode() = 0;
-
-    /**
-     * emitted on error
-     * depending on errorCode:
-     * -> interrupt selling process
-     * -> machine can go to state OOO
-     * -> send error event to ISMAS
-     * -> ...
-     */
-    virtual void Error(
-            /*  additional variables? */
-            const QString & errorCode,
-            const QString & errorDescription) = 0;
-
-};
-
-
-Q_DECLARE_INTERFACE(DeviceControllerInterface,
-                    "eu.atb.ptu.plugin.DeviceControllerInterface/1.0")
-
-
-namespace nsDeviceControllerInterface {
-
-    enum class PLUGIN_STATE : quint8 {
-        NOT_INITIALIZED = 0,
-        INITIALIZED = 1
-    };
-
-    enum class RESULT_STATE : quint8 {
-        SUCCESS = 1,                // operation was successfull
-        ERROR_BACKEND,              // error from backend (e.g. backend replies with error)
-        ERROR_TIMEOUT,              // the operation timed out
-        ERROR_PROCESS,              // internal plugin error, should not occur (this is a bug in implementation)
-        ERROR_RETRY,                // retry operation
-        INFO                        // informational (e.g. display a message, log something etc.)
-    };
-
-    enum class CASH_STATE   : quint8 {
-        CACHE_EMPTY,                // Cache still empty, default state
-        CACHE_INPUT,                // Coins are in Cache
-        OVERPAYED,
-        /* t.b.d. */
-    };
-}
-
-#endif // DEVICECONTROLLERINTERFACE_H
--- a/src/com.cpp
+++ b/src/com.cpp
@@ -19,7 +19,7 @@ void T_com::writeToSerial(const QByteArray &data, uint16_t sendLength)
    sendLen=sendLength;
    if (CatSerial->isOpen())
    {
-        qCritical() << "sending..." << sendBuffer;
+        //qDebug() << "sending..." << sendBuffer;
        CatSerial->write(sendBuffer);
    } else
        qDebug() << "error sending, port is not open";
--- a/src/controlBus.cpp
+++ b/src/controlBus.cpp
@@ -96,66 +96,64 @@ bool gpi_PeriodicSendTimeHasChanged() {
 //          Status Display    gui <--> serial
 // ///////////////////////////////////////////////////////////////////////////////////

-//              linke Spalte, über Connect Button
-static QString txt4comStateLine;
-
+// linke Spalte, über Connect Button
 QString epi_getTxt4comStateLine(void) {
    // GUI: get Text for serial Comport-State Line
-    return txt4comStateLine;
+    return SharedMemBuffer::getDataConst()->txt4.comStateLine;
 }

 void gpi_setTxt4comStateLine(QString txtline) {
    // serial: write Text to be displayed in serial Comport-State line (like "connected")
-    txt4comStateLine.clear();
-    if (txtline=="")
-        txt4comStateLine.clear();
-    else
-        txt4comStateLine=txtline;
+    memset(SharedMemBuffer::getData()->txt4.comStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.comStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.comStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.comStateLine)-1);
 }

 void epi_clrTxt4comStateLine() {
-    txt4comStateLine.clear();
+    memset(SharedMemBuffer::getData()->txt4.comStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.comStateLine));
 }

 // rechte Spalte, oberste Statuszeile
 // I) "Handshakes" (serial Control)   flow.cpp
 // geht überhaupt was raus? kommt überhaupt was zurück?
-static QString txt4HsStateLine;
-
 QString epi_getTxt4HsStateLine(void) {
-    return txt4HsStateLine;
+    return SharedMemBuffer::getDataConst()->txt4.HsStateLine;
 }

 void gpi_setTxt4HsStateLine(QString txtline) {
-    txt4HsStateLine.clear();
-    if (txtline=="")
-        txt4HsStateLine.clear();
-    else
-        txt4HsStateLine=txtline;
+    // serial: write Text to be displayed in serial Comport-State line (like "connected")
+    memset(SharedMemBuffer::getData()->txt4.HsStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.HsStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.HsStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.HsStateLine)-1);
 }

 void epi_clrTxt4HsStateLine() {
-    txt4HsStateLine.clear();
+    memset(SharedMemBuffer::getData()->txt4.HsStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.HsStateLine));
 }

 // II) Master receive state (empfangenes Telgramm OK? crc? length?  )
 // Statuszeile Auswertung der SlaveResponse (serial Frame, CRC usw)  (prot.cpp)
-static QString txt4masterStateLine;
-
 QString epi_getTxt4masterStateLine(void) {
-    return txt4masterStateLine;
+    return SharedMemBuffer::getDataConst()->txt4.masterStateLine;
 }

 void gpi_setTxt4masterStateLine(QString txtline) {
-    txt4masterStateLine.clear();
-    if (txtline=="")
-        txt4masterStateLine.clear();
-    else
-        txt4masterStateLine=txtline;
+    memset(SharedMemBuffer::getData()->txt4.masterStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.masterStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.masterStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.masterStateLine)-1);
 }

 void epi_clrTxt4masterStateLine() {
-    txt4masterStateLine.clear();
+    memset(SharedMemBuffer::getData()->txt4.masterStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.masterStateLine));
 }

 //---------------------------------------------------------------------------------------------
@@ -164,110 +162,96 @@ void epi_clrTxt4masterStateLine() {
 // entweder Empfangsfehler anzeigen (crc? length?) oder result OUT-OK, OUT_ERR, IN_OK, IN_ERR
 // Hintergrund: wenn der Slave Fehler im Master-Telegramm gefunden hat, dann kann er es auch
 // nicht verwenden und nichts ausgeben oder einlesen
-
-static QString txt4resultStateLine;
-
 QString epi_getTxt4resultStateLine(void) {
-    return txt4resultStateLine;
+    return SharedMemBuffer::getDataConst()->txt4.resultStateLine;
 }

 void gpi_setTxt4resultStateLine(QString txtline) {
-    txt4resultStateLine.clear();
-    if (txtline=="")
-        txt4resultStateLine.clear();
-    else
-        txt4resultStateLine=txtline;
+    memset(SharedMemBuffer::getData()->txt4.resultStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.resultStateLine));
+    memcpy(SharedMemBuffer::getData()->txt4.resultStateLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.resultStateLine)-1);
 }

 void epi_clrTxt4resultStateLine() {
-    txt4resultStateLine.clear();
+    memset(SharedMemBuffer::getData()->txt4.resultStateLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.resultStateLine));
 }

 //---------------------------------------------------------------------------------------------
-
 // IV  Statuszeile Empfangsdaten
-static QString txt4dataLine;
-
 QString epi_getTxt4dataStateLine(void) {
    // GUI: get Text for serial Comport-State Line
-    return txt4dataLine;
-
+    return SharedMemBuffer::getDataConst()->txt4.dataLine;
 }

 void gpi_setTxt4dataStateLine(QString txtline) {
    // serial: write Text to be displayed in serial Comport-State line (like "connected")
-    txt4dataLine.clear();
-    if (txtline=="")
-        txt4dataLine.clear();
-    else
-        txt4dataLine=txtline;
+    memset(SharedMemBuffer::getData()->txt4.dataLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.dataLine));
+    memcpy(SharedMemBuffer::getData()->txt4.dataLine,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.dataLine)-1);
 }

 void epi_clrTxt4dataStateLine() {
-    txt4dataLine.clear();
+    memset(SharedMemBuffer::getData()->txt4.dataLine,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.dataLine));
 }

 //---------------------------------------------------------------------------------------------

 // 5. Zeile: Datif Ergebnis, Daten brauchbar?
-
-static QString txt4datifReceive;
-
 QString epi_getTxt4datifLine(void) {
-    return txt4datifReceive;
+    return SharedMemBuffer::getDataConst()->txt4.datifReceive;
 }

 void gpi_setTxt4datifLine(QString txtline) {
-    txt4datifReceive.clear();
-    if (txtline=="")
-        txt4datifReceive.clear();
-    else
-        txt4datifReceive=txtline;
+    memset(SharedMemBuffer::getData()->txt4.datifReceive,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.datifReceive));
+    memcpy(SharedMemBuffer::getData()->txt4.datifReceive,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.datifReceive)-1);
 }

 void epi_clrTxt4datifLine() {
-    txt4datifReceive.clear();
+    memset(SharedMemBuffer::getData()->txt4.datifReceive,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.datifReceive));
 }

-//---------------------------------------------------------------------------------------------
-//---------------------------------------------------------------------------------------------
-
-static QString txt4diagWindow;
-
 QString epi_getTxt4RsDiagWin(void) {
-    return txt4diagWindow;
+    return SharedMemBuffer::getDataConst()->txt4.diagWindow;
 }

 void gpi_setTxt4RsDiagWin(QString txtline) {
-    txt4diagWindow.clear();
-    if (txtline=="")
-        txt4diagWindow.clear();
-    else
-        txt4diagWindow=txtline;
+    memset(SharedMemBuffer::getData()->txt4.diagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.diagWindow));
+    memcpy(SharedMemBuffer::getData()->txt4.diagWindow,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.diagWindow)-1);
 }

 void epi_clrTxt4RsDiagWin() {
-    txt4diagWindow.clear();
+    memset(SharedMemBuffer::getData()->txt4.diagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.diagWindow));
 }

-//---------------------------------------------------------------------------------------------
-
-static QString sndTxt4diagWindow;
-
 QString epi_get2ndTxt4RsDiagWin(void) {
-    return sndTxt4diagWindow;
+    return SharedMemBuffer::getDataConst()->txt4.sndDiagWindow;
 }

 void gpi_set2ndTxt4RsDiagWin(QString txtline) {
-    sndTxt4diagWindow.clear();
-    if (txtline=="")
-        sndTxt4diagWindow.clear();
-    else
-        sndTxt4diagWindow=txtline;
+    memset(SharedMemBuffer::getData()->txt4.sndDiagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.sndDiagWindow));
+    memcpy(SharedMemBuffer::getData()->txt4.sndDiagWindow,
+           txtline.toStdString().c_str(),
+           sizeof(SharedMemBuffer::getData()->txt4.sndDiagWindow)-1);
 }

 void epi_clr2ndTxt4RsDiagWin() {
-    sndTxt4diagWindow.clear();
+    memset(SharedMemBuffer::getData()->txt4.sndDiagWindow,
+           0x00, sizeof(SharedMemBuffer::getData()->txt4.sndDiagWindow));
 }

 // ///////////////////////////////////////////////////////////////////////////////////
--- a/src/datIf.cpp
+++ b/src/datIf.cpp
--- a/src/dcBL.cpp
+++ b/src/dcBL.cpp
--- a/src/hwChk.cpp
+++ b/src/hwChk.cpp
@@ -1,25 +0,0 @@
-
-#include <stdint.h>
-#include "hwChk.h"
-
-
-hwChk::hwChk(QWidget *parent) : QObject(parent)
-{
-
-//    myDCIF = new T_prot();
-// h: T_prot *myDCIF;
-
-    //myDatif = new T_datif();
-    HWaccess = new hwinf();
-
-    struct T_moduleCondition dcModCond;
-    sys_getDeviceConditions(dcModCond);
-
-
-}
-
-hwChk::~hwChk()
-{
-
-}
-
--- a/src/hwapi.cpp
+++ b/src/hwapi.cpp
@@ -24,18 +24,17 @@
 #include "shared_mem_buffer.h"
 #include <QDebug>
 #include <QSharedMemory>
+
 #include "interfaces.h"

 static uint32_t hwapi_lastStartAmount;
-static uint8_t  hwapi_cash_lastCollectionState;
-static uint8_t  hwapi_paymentStarted;

 static const QMap<QString, int> baudrateMap = {
  {"1200"   ,   0}, {"9600"   ,   1}, {"19200"  ,   2}, {"38400"  ,   3},
  {"57600"  ,   4}, {"115200" ,   5}
 };

-hwapi::hwapi(QObject *parent) : QObject(parent) {
+hwapi::hwapi(QWidget *parent) : QObject(parent) {
    // create or attach shared memory segment
    // !!! The compoment creating the shared memory MUST be ATBQT !!!
    m_sharedMem = SharedMemBuffer::getShm(sizeof(SharedMemBuffer));
@@ -53,18 +52,6 @@ hwapi::hwapi(QObject *parent) : QObject(parent) {
    connect(myDatif, SIGNAL(datif_templatePrintFinished_OK()), this, SLOT(hwapi_slotPrintFinished_OK()));
    connect(myDatif, SIGNAL(datif_templatePrintFinished_Err()), this, SLOT(hwapi_slotPrintFinished_Err()));
    connect(myDatif, SIGNAL(datif_gotNewCoin()), this, SLOT(hwapi_slotGotCoin()));
-
-    hwapi_TimerPayment = new QTimer();
-    hwapi_TimerPayment->setSingleShot(true);
-
-    QTimer *hwapi_callPayProc = new QTimer();
-    connect(hwapi_callPayProc, SIGNAL(timeout()), this, SLOT(hwapi_slotPayProc()));
-    hwapi_callPayProc->setSingleShot(false);
-    hwapi_callPayProc->start(100);     // in ms
-
-    hwapi_lastStartAmount=0;
-    hwapi_cash_lastCollectionState=0;
-    hwapi_paymentStarted=0;
 }

 hwapi::~hwapi() {
@@ -73,12 +60,6 @@ hwapi::~hwapi() {
    }
 }

-
-void hwapi::hwapi_slotPayProc(void)
-{
-    cash_paymentProcessing();
-}
-
 void hwapi::hwapi_slotPrintFinished_OK(void) {
    emit hwapi_templatePrintFinished_OK();
 }
@@ -94,7 +75,7 @@ void hwapi::hwapi_slotGotCoin(void) {
    uint32_t newSum=epi_CurrentPaymentGetAmount();

    if (newSum>=hwapi_lastStartAmount)
-        emit hwapi_payStopByMax();
+        emit hwapi_vendStopByMax();

 }

@@ -1791,8 +1772,7 @@ void hwapi::readback_machineIDdata(uint8_t *length, uint8_t *data) const
 static uint16_t hwapi_shutterTime;

 // locks, 2.Level: (Motor stops automatical on end switch or by 5s timeout)
-uint8_t hwapi::lock_openUpperDoor(void) const
-{
+uint8_t hwapi::lock_openUpperDoor(void) const {
    //bool sendWRcmd_setSendCommand4(uint16_t nextCmd, uint8_t dat1, uint8_t dat2, uint8_t dat3, uint8_t dat4);
        // commands are defined in PIdefines.h
    sendWRcmd_setSendCommand4(SENDDIRCMD_OPENUP_DOOR, 1, 0, 0, 0);
@@ -1820,54 +1800,39 @@ uint8_t hwapi::lock_closeLowerDoor(void) const
    return 0;
 }

-void hwapi::shut_openOnce(void) const
-{
+void hwapi::shut_openOnce(void) const {
    // and close automatic after shutter time
-    uint16_t zeit=hwapi_shutterTime;
-    zeit/=100;
+    uint16_t zeit = (SharedMemBuffer::getDataConst()->hwapi.shutterTime) / 100;
    sendWRcmd_setSendCommand4(SENDDIRCMD_SHUTOPENBYTIME, uint8_t(zeit) ,0,0,0);

 }

-void hwapi::shut_openForCoin(bool start) const
-{
+void hwapi::shut_openForCoin(bool start) const {
    // start=true: start opening flap if coin is attached
    // start=false: stop process
-
-    uint16_t zeit=hwapi_shutterTime;
-    zeit/=100;
+    uint16_t zeit = (SharedMemBuffer::getDataConst()->hwapi.shutterTime) / 100;
    sendWRcmd_setSendCommand4(SENDDIRCMD_SHUTOPENBYCOIN, uint8_t(start), uint8_t(zeit),0,0);

 }

-void hwapi::shut_sendOpeningTime(uint16_t timeIn_ms ) const
-{
+void hwapi::shut_sendOpeningTime(uint16_t timeIn_ms ) const {
    // after this time without retrigger the flap is closed
    //sendWRcmd_setSendCommand4(SENDDIRCMD_SHUT_SENDTIME, timeIn100ms,0,0,0);
-    hwapi_shutterTime=timeIn_ms;
-
+    SharedMemBuffer::getData()->hwapi.shutterTime = timeIn_ms;
 }


-void hwapi::esc_takeMoney(void) const
-{
+void hwapi::esc_takeMoney(void) const {
    // and close automatically after escrow time (1s)
    sendWRcmd_setSendCommand0(SENDDIRCMD_ESCRO_TAKE);
 }

-void hwapi::esc_returnMoney(void) const
-{
+void hwapi::esc_returnMoney(void) const {
    // and close automatically after time
    sendWRcmd_setSendCommand0(SENDDIRCMD_ESCRO_GIVE);

 }

-
-
-
-
-
-
 // ----------------------------------------------------------------------------------------------------------
 // --------------------------------------------- MIFARE -----------------------------------------------------
 // ----------------------------------------------------------------------------------------------------------
@@ -3535,7 +3500,6 @@ bool hwapi::prn_sendDynamicPrnValues(uint8_t *dynPrnVal ) const

 }

-
 bool hwapi::prn_printTemplate(uint8_t nrOftemplate) const
    // print one of the templates loaded by Json prior
    // nr = 1..32
@@ -3638,192 +3602,11 @@ bool hwapi::cash_startPayment(uint32_t amount) const
    dat2=ulong2uchar(amount, 1);
    dat3=ulong2uchar(amount, 2);
    dat4=ulong2uchar(amount, 3);
-    hwapi_cash_lastCollectionState=0;
-    sendFDcmd_set(155, 0,0, dat1,dat2,dat3,dat4);

-    hwapi_paymentStarted=1;
-    hwapi_TimerPayment->start(5000);     // in ms
+    return sendFDcmd_set(155, 0,0, dat1,dat2,dat3,dat4);

-
-    return true;
 }

-
-uint8_t hwapi::cash_paymentProcessing(void) const
-{
-    // run this function periodically while coin payment process to generate necessary signals:
-    //    virtual void hwapi_coinCollectionJustStarted(void) const=0;
-    //    virtual void hwapi_coinCollectionAborted(void) const=0;
-    //    virtual void hwapi_gotNewCoin(void) const=0;              // comes from: hwapi_slotGotCoin()
-    //    virtual void hwapi_payStopByMax(void) const=0;            // comes from: hwapi_slotGotCoin()
-    //    virtual void hwapi_payStopByPushbutton(void) const=0;     // comes from cash_stopPayment()
-    //    virtual void hwapi_payStopByEscrow(void) const=0;
-    //    virtual void hwapi_payStopByError(void) const=0;
-    //    virtual void hwapi_payStopByTimeout(void) const=0;
-    //    virtual void hwapi_payCancelled(void) const=0;
-
-    //    virtual void hwapi_coinProcessJustStopped(void) const=0;
-
-    // return value:
-    // 0: stopped   1: starting up   2: coin collection
-    // 3: finished by User (Push button)  4: finished, Max-Value collected
-    // 5: finished by escrow
-    // 6: money encashed
-    // 7: cancelled
-    // 10,11: error cannot start
-    // 12: timeout while payment, coins returned
-    // 13: stopped by unexpected error
-
-
-
-    struct T_emp empStat;
-    struct T_dynamicCondition myDynMachCond;
-    uint8_t collActiv=0, payInProg, empState;
-
-    if (hwapi_paymentStarted<1)
-        return 0;       // off
-
-    collActiv=1;    // starting up payment
-    emp_getAllParameters(&empStat);
-    //collActiv=empStat.paymentRunning;
-
-    empState=empStat.state;
-        // 0=start command
-        // 1=powered, do emp ini, send reset
-        // 2=delay
-        // 3=wait for response, requesting status after response
-        // 4,5 through, startup
-        // 6: wait for status
-        // 7: through, startup
-        // 8: IDLE state.   EMP is up and ready, polling is running
-        // 9: polling on, payment not yet on
-        // 10: payment, check coins
-        // 11: through
-        // 12: wait 1s for last coin
-        // 90: stop all, 1s delay
-        // 99: off, all stopped
-
-    //qCritical() << "empState = " << empState;
-
-    sys_getDynMachineConditions(&myDynMachCond);
-    payInProg= myDynMachCond.paymentInProgress;
-    //	0: stopped by timeout
-    //  1: running  2: wait4lastCoin
-    //				3: payment stopped manually, coins in Escrow
-    //			    4: payment stopped autom, amount collected, coins in Escrow
-    //			    5: payment stopped, escrow full, coins in Escrow
-    //			    6: coins encashed   7:coins returned
-    //				8: CoinChecker or MDB on Error
-
-
-    if (payInProg==8)
-    {
-        // coin checker faulty, cannot start
-        if (hwapi_paymentStarted==1)
-        {
-            hwapi_paymentStarted=90;    // stop due to error
-            emit hwapi_coinCollectionAborted();
-            //sendFDcmd_set(156, 0,0, 2,0,0,0);       // cancel payment
-            collActiv=10;    // error cannot start
-        }
-    } else
-
-    if (empState>=10 && empState<=12)
-    {
-        // coin acceptance is active now:
-        hwapi_TimerPayment->stop();     // to avoid error signal
-        if (hwapi_paymentStarted==1)    // 1=wait for coin checker being ready
-        {
-            hwapi_paymentStarted=2;     // coins can be inserted no
-            emit hwapi_coinCollectionJustStarted();
-        }
-    } else
-    {
-        // EMP not (yet) ready
-
-        if (!hwapi_TimerPayment->isActive())
-        {
-            // 5s after start-payment the coin-checker is still not ready
-            hwapi_TimerPayment->stop();
-            if (hwapi_paymentStarted==1)
-            {
-                hwapi_paymentStarted=90;    // stop due to error
-                emit hwapi_coinCollectionAborted();     // error cannot start
-                //sendFDcmd_set(156, 0,0, 2,0,0,0);       // cancel payment
-                collActiv=11;    // error cannot start
-            }
-        }
-    }
-
-    if (hwapi_paymentStarted==2)
-    {
-        collActiv=2;    // coin collection active
-
-        // coins can be inserted now, wait for end
-        if (payInProg==0)   // timeout
-        {
-            hwapi_paymentStarted++;
-            collActiv=12;   // stop by timeout
-            emit hwapi_payStopByTimeout();
-        } else
-        if (payInProg==3)   // user pressed "Next/Continue"
-        {
-            hwapi_paymentStarted++;
-            collActiv=3;
-            emit hwapi_payStopByPushbutton();
-        } else
-        if (payInProg==4)   // max achieved
-        {
-            hwapi_paymentStarted++;
-            collActiv=4;
-            emit hwapi_payStopByMax();
-        } else
-        if (payInProg==5)   // escrow full
-        {
-            hwapi_paymentStarted++;
-            collActiv=5;
-            emit hwapi_payStopByEscrow();
-        } else
-        if (payInProg==6)   // encashed
-        {
-            hwapi_paymentStarted++;
-            collActiv=6;
-
-        } else
-        if (payInProg==7)   // returned, user pressed Cancel button
-        {
-            hwapi_paymentStarted++;
-            collActiv=7;
-            emit hwapi_payCancelled();
-        } else
-
-        if (empState<9 || payInProg==8)
-        {
-            hwapi_paymentStarted++;
-            collActiv=13;       // stopped by unexpected error
-            emit hwapi_payStopByError();
-        }
-    }
-
-    if (empState<8 || empState>12)
-        epi_clearCurrentPayment();      // to avoid wrong "got-coin" messages
-
-
-    if (hwapi_paymentStarted==90 || hwapi_paymentStarted==3 )
-    {
-        // EMP error, wait till process finished
-        if (empState==99 && (payInProg==0 || payInProg>5) )
-        {
-            // everything stopped, no more coins in escrow
-            hwapi_paymentStarted=0;
-            emit hwapi_coinProcessJustStopped();
-        }
-    }
-
-    return collActiv;
-}
-
-
 uint32_t hwapi::getInsertedAmount(void) const
 {
    return epi_CurrentPaymentGetAmount();
@@ -3854,7 +3637,7 @@ bool hwapi::cash_stopPayment(void) const
 {
    // DB1: 1=encash    2=cancel & return coins
    //      3=stop and keep coins in escrow
-    emit hwapi_payStopByPushbutton();
+    emit hwapi_vendStopByPushbutton();
    return sendFDcmd_set(156, 0,0, 3,0,0,0);

 }
@@ -3877,11 +3660,6 @@ bool hwapi::vend_failed(void) const

 }

-
-
-
-
-
 uint8_t hwapi::mif_getCardType(QString *cardholder) const
    // return 1,2,3,4 = upper, lower access card, printer test, coin test
    // cardholder: 7byte Name-String
@@ -3908,20 +3686,6 @@ uint64_t hwapi::sys_getWakeSource(void) const
     return epi_getWakeSources();
 }

-uint8_t hwapi::sys_getWakeReason(void) const
-{
-     // Master was woken by following reason:
-     // 1: MDB Event
-     // 2: Coin Event
-     // ( 3: Master Event) - will not set the wake line
-     // ( 4: 32s pulse) - will not set the wake line
-     // 5: Door Event
-     // ( 6: Diag Event) - will not set the wake line
-     // 7: 30min-Pulse for HB
-
-     return epi_getWakeReason();
-}
-

 void hwapi::sys_getDeviceConditions(uint8_t *leng, uint8_t *data) const
 {
@@ -4057,212 +3821,3 @@ uint8_t hwapi::prn_getCurrentPrinterState() const
 }


-// 21.4.23TS: change function "sendDeviceSettings()" to use this struct: "struct T_devices"
-void hwapi::sys_sendDeviceParameter(struct T_devices *deviceSettings) const
-{
-    // same as "sendDeviceSettings()" but with much more data
-    uint8_t buf[64];
-    uint16_t LL, nn;
-    tslib_strclr(buf,0,64);
-    uint8_t *start;
-
-    // den gesamten struct in einen Puffer kopieren
-    LL=sizeof(struct T_devices);
-    start = &deviceSettings->kindOfPrinter;
-    nn=0;
-    do
-    {
-        buf[nn] = *start;
-        start++;
-    } while(++nn<LL);
-
-    epi_store64BdevParameter(LL,buf);   // this buffer holds the device settings to be used here in hwapi
-    epi_store64ByteSendData(LL, buf);   // this buffer holds sending data temporarely
-    sendWRcmd_setSendCommand0(SENDDIRCMD_DEVICE_PARA);
-
-}
-
-void hwapi::sys_restoreDeviceParameter(struct T_devices *deviceSettings) const
-{
-    uint8_t buf[64];
-    uint8_t LL, nn;
-    tslib_strclr(buf,0,64);
-    uint8_t *start;
-
-    epi_restore64BdevParameter(&LL, buf);
-
-    // Puffer in struct eintragen:
-    start = &deviceSettings->kindOfPrinter;
-    nn=0;
-    do
-    {
-        *start = buf[nn];
-        start++;
-    } while(++nn<LL);
-
-}
-
-bool hwapi::sys_areDCdataValid(void) const
-{
-    return epi_areDcDataValid();
-}
-
-/* ---------------------------------------------------------------------------------------------
-// ------------   supervise  all hardware components
-// ------------    assess the machine state
-
-1. check if DC startup test is through, retrigger if not
-2. get results and find errors
-3. in case of error check if component is used (e.g. billreader is seldom used)
-4: check doors
-5. return value: 0: no response from DC
-                 1: no Test results and Test not running. need retrigger!
-                 2: state not clear by now, test ongoing, wait
-                 3: Service or battery door is open, goto INTRUSION MODE
-                        from here: after valid ID-card goto SERVICE MODE
-                 4: vault door is open, goto INTRUSION MODE
-                        from here: after valid ID-card and vault door closed goto TEST MODE
-                        in TEST MODE: complete system check decides if vending mode allowed
-                 5: All doors are closed but errors found,
-                        goto OOO MODE (out-of-order)
-                        from here: run system test until problem is fixed
-                 6: All doors are closed, no error, maybe warnings,
-                        goto VENDING MODE (normal operation)
-                (priority sinks from 0 to 6)
-
- --------------------------------------------------------------------------------------------- */
-
-uint8_t hwapi::sys_componentAssessment(void) const
-{
-    // this function decides if vending mode is possible, independant from door
-    // return >0 in case of error
-    // is inncluded in sys_superviseSystem
-
-    struct T_moduleCondition *modCond=0;
-    sys_getDeviceConditions(modCond);
-
-    struct T_dynamicCondition *dynMaCond=0;
-    sys_getDynMachineConditions(dynMaCond);
-
-    struct T_devices *devPara=0;
-    sys_restoreDeviceParameter(devPara);
-
-    if (modCond->rtc>=200)
-        return 1;
-    if (modCond->printer==200 || modCond->printer==201)   // 200: not connected  201: printer-HW-error  202: no paper
-        return 2;
-    if (modCond->printer==202)
-        return 3;
-
-    if (modCond->coinBlocker>=200)
-        return 4;
-    if (modCond->mdbBus>=200)
-        return 5;
-    if (modCond->intEe>=200)
-        return 6;
-
-    if (devPara->kindOfCoinChecker==1 || devPara->kindOfCoinChecker==2)  // 0: without  1=EMP820   2=EMP900    3=currenza c²	(MW)
-    {
-        if (modCond->coinChecker>=200 || modCond->coinEscrow>=200)
-        {
-            // Fehler Münzver.
-            return 7;
-        }
-        if (modCond->coinSafe>200)           // 200: kasse fehlt 201: voll  100:fast voll  1:ok
-        {
-            return 8;
-        }
-    } else
-    if (devPara->kindOfCoinChecker==3)
-    {
-        if (modCond->changer>=200)
-        {
-            // Fehler Münzver.
-            return 7;
-        }
-        if (modCond->coinSafe>200)           // 200: kasse fehlt 201: voll  100:fast voll  1:ok
-        {
-            return 8;
-        }
-    }
-
-    if ( modCond->billReader>=200 && devPara->BillAcceptor>0)
-    {
-        // Fehler BNA
-        return 9;
-    }
-
-    if (dynMaCond->onAlarm>0)
-        return 10;
-
-    if (dynMaCond->modeAbrech>0)
-        return 11;
-
-    if (dynMaCond->nowCardTest>0)
-        return 12;
-
-    if (dynMaCond->startupTestIsRunning>0)
-        return 13;
-
-    if (modCond->voltage>=200)
-        return 14;
-    if (modCond->temper>=200)
-        return 15;
-
-    return 0;
-}
-
-
-// retrigger System-Check with:
-// bool hwapi::sys_runCompleteTest(void) const
-
-
-uint8_t hwapi::sys_superviseSystem(void) const
-{
-    // this function proofs if vending is possible depending of doors state
-
-    struct T_dynamicCondition *dynMaCond=0;
-    struct T_moduleCondition *modCond=0;
-
-    if (!gpi_areDcDataValid())
-    {
-        // es gibt keinerlei gültige Daten vom DC
-        return 0;
-    }
-
-    // jetzt sind die DC-Daten aktuell, also reinholen:
-    sys_getDynMachineConditions(dynMaCond);
-    sys_getDeviceConditions(modCond);
-
-    if (!modCond->allModulesChecked)
-    {
-        // noch keine Testergebnisse
-        if (dynMaCond->startupTestIsRunning)
-            return 2;    // Starttest läuft gerade
-        else
-            return 1;    // Starttest ist noch nicht gelaufen
-    }
-
-    // all doors: 99: undefined  0:closed  1:open
-    if (dynMaCond->lowerDoor || dynMaCond->upperDoor)
-        return 3;
-    if (dynMaCond->middleDoor)
-        return 4;
-
-    if (sys_componentAssessment() >0)
-        return 5;       // errors found
-
-    return 6;   // everything fine
-}
-
-
-
-uint8_t hwapi::sys_getSystemErrors(void) const
-{
-
-    return sys_componentAssessment();
-
-
-}
-
-
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -0,0 +1,9 @@
+#include <QCoreApplication>
+#include "tslib.h"
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication a(argc, argv);
+
+    return a.exec();
+}
--- a/src/prot.cpp
+++ b/src/prot.cpp
@@ -433,8 +433,7 @@ uint8_t recBuffer[FRAME_MAXLEN];

    // read from "VCP":
    mySerialPort->readFromSerial(Indata, recLength);
-    qCritical()<<"prot: got data "  << recLength;
-    qCritical()<<"        Indata: " << Indata;
+//qDebug()<<"prot: got data " << recLength;
    if (recLength>FRAME_MAXLEN)
        recLength=FRAME_MAXLEN;
    for (int nn=0; nn<recLength; nn++)
@@ -444,9 +443,6 @@ uint8_t recBuffer[FRAME_MAXLEN];
    tempStr.clear();
    //uint8_t result=FramecheckInData(recBuffer, recLength);  // check input data (response from slave)
    uint8_t result=FastCheckInData(recBuffer, recLength);  // check input data (response from slave)
-
-    qCritical()<<"    FastCheckInData() result = " << result;
-
    if (result>0)
    {
        // dann anzeige
--- a/src/sendWRcmd.cpp
+++ b/src/sendWRcmd.cpp
--- a/src/serial_port_thread.cpp
+++ b/src/serial_port_thread.cpp
@@ -0,0 +1,15 @@
+#include "serial_port_thread.h"
+
+
+SerialPortThread::SerialPortThread(QObject *parent)
+    : QThread(parent) {
+    this->setObjectName("SerialPortThread");
+}
+
+SerialPortThread::~SerialPortThread() {
+    m_loop.quit();
+}
+
+void SerialPortThread::run() {
+    m_loop.exec();
+}
--- a/src/serial_port_worker.cpp
+++ b/src/serial_port_worker.cpp
@@ -0,0 +1,244 @@
+#include "serial_port_worker.h"
+#include "serial_port_thread.h"
+
+#include <QDebug>
+#include <QCoreApplication>
+
+std::atomic<uint8_t> Command::m_nextSendBufferIndex{0};
+std::atomic<uint8_t> Command::m_nextRecvBufferIndex{0};
+char Command::m_sendBuffers[256][SEND_BLOCK_SIZE]{{0}};
+char Command::m_recvBuffers[256][SEND_BLOCK_SIZE]{{0}};
+
+uint32_t Command::getNextCommandPriority(uint8_t priorityClass) {
+    static std::atomic<std::uint32_t> priority_1{0};
+    static std::atomic<std::uint32_t> priority_2{1000000000};
+    static std::atomic<std::uint32_t> priority_3{2000000000};
+    static std::atomic<std::uint32_t> priority_4{3000000000};
+    switch (priorityClass) {
+    case PRIORITY_1:
+        return priority_1.fetch_add(1);
+    case PRIORITY_2:
+        return priority_2.fetch_add(1);
+    case PRIORITY_3:
+        return priority_3.fetch_add(1);
+    case PRIORITY_4:
+        return priority_4.fetch_add(1);
+    }
+    return -1;
+}
+
+char *Command::getNextSendBuffer() {
+    uint8_t const nextIndex = m_nextSendBufferIndex.fetch_add(1);
+    return &m_sendBuffers[nextIndex][0];
+}
+
+char *Command::getNextRecvBuffer() {
+    uint8_t const nextIndex = m_nextRecvBufferIndex.fetch_add(1);
+    return &m_recvBuffers[nextIndex][0];
+}
+
+Command::Command(uint16_t cmdId, uint8_t sendBufferLength,
+                 uint8_t recvBufferLength, uint8_t priorityClass)
+    : m_priority(getNextCommandPriority(priorityClass))
+    , m_priorityClass(priorityClass)
+    , m_cmdId(cmdId)
+    , m_sendBuffer(Command::getNextSendBuffer())
+    , m_recvBuffer(Command::getNextRecvBuffer())
+    , m_sendBufferLength(sendBufferLength)
+    , m_recvBufferLength(recvBufferLength) {
+    memset(m_sendBuffer, 0x00, sizeof(m_sendBuffers[0]));
+}
+
+Command::Command()
+    : m_priority(0)
+    , m_priorityClass(0)
+    , m_cmdId(0)
+    , m_sendBuffer(0)
+    , m_recvBuffer(0)
+    , m_sendBufferLength(0)
+    , m_recvBufferLength(0) {
+}
+
+/**
+* \brief Constructor for SerialPort
+*
+* @date 08.11.2022 – first draft.
+*
+*/
+SerialPortWorker::SerialPortWorker(QString portName, enum QSerialPort::BaudRate baudRate, QObject *parent)
+    : QThread(parent)
+    , m_serialPort()
+    , m_serialPortOpened(false)
+    , m_portName(portName)
+    , m_baudRate(baudRate)
+    , m_bytesWritten(0) {
+    this->setObjectName("SerialPortWorker");
+
+    foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) {
+        if (!info.isNull()) {
+            qDebug() << "Name .......... " << info.portName();
+            qDebug() << "Description ... " << info.description();
+            qDebug() << "Manufacturer .. " << info.manufacturer();
+            qDebug() << "SerialNumber .. " << info.serialNumber();
+            if (info.hasProductIdentifier()) {
+                qDebug() << "Product-ID .... " << info.productIdentifier();
+            }
+            if (info.hasVendorIdentifier()) {
+                qDebug() << "Vendor-ID ..... " << info.vendorIdentifier();
+            }
+            qDebug() << "Location ...... " << info.systemLocation();
+
+            if (info.portName() == m_portName) {
+                m_serialPortInfo = info;
+            }
+        }
+    }
+
+    if (m_serialPortInfo.portName() == m_portName) {
+        m_serialPort.setPort(m_serialPortInfo);
+        m_serialPort.setPortName(m_portName);
+        m_serialPort.setDataBits(QSerialPort::Data8);
+        m_serialPort.setParity(QSerialPort::NoParity);
+        m_serialPort.setStopBits(QSerialPort::OneStop);
+        m_serialPort.setFlowControl(QSerialPort::NoFlowControl);
+        m_serialPortOpened = m_serialPort.open(QIODevice::ReadWrite);
+    }
+}
+
+SerialPortWorker::~SerialPortWorker() {
+    closeSerialPort();
+}
+
+void SerialPortWorker::run() {
+    SerialPortThread serialPortThread;
+    this->moveToThread(&serialPortThread); // not really necessary
+
+    // Note: because this thread is moved to serialPortThread, the event loop
+    // used will be the one of serialPortThread (this-thread does not even have one).
+    // This is the only purpose of serialPortThread.
+    serialPortThread.start();
+
+    connect(&m_serialPort, SIGNAL(readyRead()), this, SLOT(getBytesAvailable()));
+    connect(&m_serialPort, SIGNAL(bytesWritten(qint64)), this, SLOT(getNumberOfBytesWritten(qint64)));
+
+    while (m_serialPortOpened) {
+        Command nextCmd = getNextCommand();
+        if (nextCmd.m_cmdId == Command::QUIT_SENTINEL) {
+            break;
+        }
+        QByteArray data(nextCmd.getNextSendBuffer(), nextCmd.m_sendBufferLength);
+        m_bytesWritten = 0;
+        m_serialPort.write(data);
+        // process events in event loop of associated thread
+        serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+        int maxWaitTime = WAIT_TIME_MAX;
+
+        while (maxWaitTime > 0 && m_bytesWritten < (uint32_t)data.size()) {
+            if (!m_serialPort.waitForBytesWritten(100)) { // wait timeout-ms for the bytes to be written
+                // process events in event loop of associated thread
+                serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+                maxWaitTime -= TIMEOUT;
+            }
+        }
+        if (m_bytesWritten == (uint32_t)data.size()) { // data written, wait for result
+            if (nextCmd.m_recvBufferLength > 0) {
+                // process events in event loop of associated thread
+                serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+                maxWaitTime = WAIT_TIME_MAX;
+                while (maxWaitTime > 0 && m_bytesAvailable < nextCmd.m_recvBufferLength) {
+                    if (!m_serialPort.waitForReadyRead(100)) {
+                        // process events in event loop of associated thread
+                        serialPortThread.getEventLoop().processEvents(QEventLoop::ExcludeUserInputEvents, TIMEOUT);
+                        maxWaitTime -= TIMEOUT;
+                    }
+                }
+                uint32_t const bytesAvailable = m_bytesAvailable;
+                if (bytesAvailable == nextCmd.m_recvBufferLength) {
+                    QByteArray result = m_serialPort.read(bytesAvailable);
+                    if (!result.isEmpty() && ((uint32_t)result.size() == bytesAvailable)) {
+                        memcpy(nextCmd.m_recvBuffer, result.data(), bytesAvailable);
+                        insertResult(nextCmd);
+                    }
+                } else {
+                    // error
+                }
+            }
+        } else {
+            // error
+        }
+    } // while (m_serialPortOpened)
+
+    serialPortThread.quit();
+    serialPortThread.wait();
+}
+
+bool SerialPortWorker::openSerialPort() {
+    if (!m_serialPortOpened) {
+        return m_serialPort.open(QIODevice::ReadWrite);
+    }
+    return false; // opening twice is not allowed
+}
+
+void SerialPortWorker::closeSerialPort() {
+    if (m_serialPortOpened) {
+        m_serialPort.close();
+        m_serialPortOpened = false;
+    }
+}
+
+void SerialPortWorker::quit() {
+    Command cmd(Command::QUIT_SENTINEL, 0, 0, Command::PRIORITY_1);
+    insertCommand(cmd);
+}
+
+void SerialPortWorker::insertCommand(Command const &cmd) {
+    {   std::lock_guard<std::mutex> lock(m_sendQueueMutex);
+        m_sendQueue.push(cmd);
+    } // release lock
+    m_sendQueueCondVar.notify_one();
+}
+
+Command SerialPortWorker::getNextCommand() {
+    Command nextCmd;
+    {   std::unique_lock<std::mutex> lock(m_sendQueueMutex);
+        m_sendQueueCondVar.wait(lock, [this]{ return !this->m_sendQueue.empty(); });
+        nextCmd = m_sendQueue.top();
+        m_sendQueue.pop();
+    } // release lock
+    return nextCmd;
+}
+
+void SerialPortWorker::insertResult(Command const &result) {
+    {   std::lock_guard<std::mutex> lock(m_recvQueueMutex);
+        m_recvQueue.push_back(result);
+    } // release lock
+    m_recvQueueCondVar.notify_one();
+}
+
+bool SerialPortWorker::getNextResult(Command &nextResult, int timeout) {
+    bool timed_out = false;
+    {   std::unique_lock<std::mutex> lock(m_recvQueueMutex);
+        if (m_recvQueueCondVar.wait_for(lock, std::chrono::milliseconds(timeout),
+                                    [this]{ return !this->m_recvQueue.empty(); })) {
+            nextResult = m_recvQueue.front();
+            m_recvQueue.pop_front();
+            return true;
+        } else {
+            timed_out = true;
+        }
+    } // release lock
+    return (timed_out == false);
+}
+
+void SerialPortWorker::getBytesAvailable() {
+    m_bytesAvailable += m_serialPort.bytesAvailable();
+}
+
+bool SerialPortWorker::getNumberOfBytesWritten(qint64 bytesWritten) {
+    if (bytesWritten > 0) {
+        m_bytesWritten += (uint32_t)bytesWritten;
+        return true;
+    }
+    return false;
+}
+
--- a/src/shared_mem_buffer.cpp
+++ b/src/shared_mem_buffer.cpp
@@ -1,6 +1,7 @@
 #include "shared_mem_buffer.h"

 #include <QDebug>
+#include <QCoreApplication>
 #include <atomic>

 #ifdef QT_POSIX_IPC
@@ -12,6 +13,12 @@
 #include <sys/ipc.h>    // ftok
 #endif

+#ifdef __linux__
+#include <unistd.h>
+#endif
+
+#define PROCESS_SHARED (PTHREAD_PROCESS_SHARED)
+
 // std::atomic_bool SharedMemBuffer::__sharedMemLocked{false};

 QSharedMemory *SharedMemBuffer::getShm(std::size_t size) {
@@ -22,6 +29,83 @@ QSharedMemory *SharedMemBuffer::getShm(std::size_t size) {
        shMem.setKey(fkey);
        if (!shMem.isAttached()) {
            if (shMem.create(size)) {
+                // the creator is the owner of the shared-memory segment
+                SharedMemBuffer *shm = (SharedMemBuffer *)(shMem.data());
+                if (shm) {
+                    shm->init = 0;
+                    // mark the shm
+                    memset(shm->appName, 0x00, sizeof(shm->appName));
+                    strncpy(shm->appName,
+                            QCoreApplication::applicationName().toLocal8Bit().constData(),
+                            sizeof(shm->appName)-1);
+                    shm->pid = getpid();
+
+                    // create condition variables plus associated mutexes for
+                    // sending/receiving commands to dc
+                    int r = 0;
+                    if ((r = pthread_mutexattr_init(&shm->sndMtxA)) != 0) {
+                        qCritical() << "init mutex attribute"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutexattr_setpshared(
+                                &shm->sndMtxA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "set s-mutex attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutex_init(&shm->sndMtx,
+                                                &shm->sndMtxA) != 0)) {
+                        qCritical() << "init s-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_init(&shm->sndCndA) != 0)) {
+                        qCritical() << "init s-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_setpshared(
+                                &shm->sndCndA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "init s-cond attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_cond_init(&shm->sndCndV,
+                                               &shm->sndCndA) != 0)) {
+                        qCritical() << "init s-condvar" << strerror(errno) << r;
+                    }
+
+                    if ((r = pthread_mutexattr_init(&shm->rcvMtxA)) != 0) {
+                        qCritical() << "init r-mutex attribute"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutexattr_setpshared(
+                                &shm->rcvMtxA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "set r-mutex attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_mutex_init(&shm->rcvMtx,
+                                                &shm->rcvMtxA) != 0)) {
+                        qCritical() << "init r-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_init(&shm->rcvCndA) != 0)) {
+                        qCritical() << "init r-mutex" << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_condattr_setpshared(
+                                &shm->rcvCndA, PTHREAD_PROCESS_SHARED) != 0)) {
+                        qCritical() << "init r-cond attribute to process shared"
+                                    << strerror(errno) << r;
+                    }
+                    if ((r == 0) &&
+                        (r = pthread_cond_init(&shm->rcvCndV,
+                                               &shm->rcvCndA) != 0)) {
+                        qCritical() << "init s-condvar" << strerror(errno) << r;
+                    }
+                    shm->init = 1;
+                }
                return &shMem;
            } else {
                if (shMem.error() == QSharedMemory::AlreadyExists) {
--- a/src/storeINdata.cpp
+++ b/src/storeINdata.cpp
@@ -24,7 +24,6 @@ bool indat_isPrinterOn() {
    return indat_savePrnPwr;
 }

-
 static bool indat_saveMifPwr;

 void indat_storeMifarePower(bool isOn) {
@@ -35,7 +34,6 @@ bool indat_isMifareOn() {
    return indat_saveMifPwr;
 }

-
 static bool indat_MdbIsOn;

 void indat_storeMDBisOn(bool isOn) {
@@ -46,11 +44,6 @@ bool indat_isMdbOn() {
    return indat_MdbIsOn;
 }

-
-// //////////////////////////////////////////////////////////////////////////
-
-
-
 void gpi_storeSlaveSerParams(uint8_t slaveBaudRate, uint8_t NrDataBits,
                             uint8_t parity, uint8_t NrStopBits) {
    // store numbers
@@ -102,7 +95,6 @@ void gpi_storeGenerals(uint8_t genNr, QString text) {
                text.toStdString().c_str(),
                sizeof(SharedMemBuffer::getDataConst()->genStrings[0]));
    }
-
 }

 QString epi_loadGenerals(uint8_t genNr) {
@@ -116,9 +108,6 @@ QString epi_loadGenerals(uint8_t genNr) {
    return " ";
 }

-
-
-
 // -------------------------------

 void gpi_storeUID(uint8_t const *buf8byteUid) {
@@ -293,7 +282,6 @@ QString epi_getSlaveTimeDateStr() {

 }

-
 // ///////////////////////////////////////////////////////////////////////////////////
 //          analog values
 // ///////////////////////////////////////////////////////////////////////////////////
@@ -322,7 +310,6 @@ uint16_t epi_loadAIs(uint8_t aiNr) {
 // ADC0: temp
 // 1: voltage
 // 2: brightness
-#define MAXNROF_MEASURE         4

 uint32_t epi_loadMeasureValue(uint8_t ValueNr) {
    // ValueNr 0=ADC0, 1=ADC1 aso...
@@ -1002,15 +989,6 @@ void gpi_storePrinterFonts(uint8_t const *buf) {
           sizeof(SharedMemBuffer::getData()->Sdata.PRN_FONTS));
 }

-/*
-    qDebug()<<"printer fonts stored " <<Sdata_PRN_FONTS[0]<<" "<<Sdata_PRN_FONTS[1]<<" " \
-           <<Sdata_PRN_FONTS[2]<<" "<<Sdata_PRN_FONTS[3]<<" " \
-          <<Sdata_PRN_FONTS[4]<<" "<<Sdata_PRN_FONTS[5]<<" "  \
-            <<Sdata_PRN_FONTS[6]<<" "<<Sdata_PRN_FONTS[7]<<" " \
-           <<Sdata_PRN_FONTS[8]<<" "<<Sdata_PRN_FONTS[9]<<" "  \
-          <<Sdata_PRN_FONTS[10]<<" "<<Sdata_PRN_FONTS[11];
-*/
-
 // DB0: mdb_bus_ready (switched on)
 // DB1: rdBackV12devicePower
 // DB2: rdBackV5busPwr
@@ -1094,10 +1072,6 @@ void gpi_storeEmpCoinSignal(uint8_t leng, uint8_t const *data) {
    {
        vv=uchar2uint(data[pp+4], data[pp+3]);
        sub_enterData(data[pp], data[pp+1], data[pp+2], vv );
-
-//qDebug()<< "emp IN data: " << data[pp] << " " << data[pp+1]
-//        << " " <<data[pp+2] <<" " <<data[pp+3] <<" " <<data[pp+4] <<" ";
-
        pp+=5;
        LL--;
    }
@@ -1159,11 +1133,6 @@ void epi_clearCurrentPayment(void) {
    // call at beginning of coin collection
    SharedMemBuffer::getData()->store.insertedAmount = 0;
    p_lastCoin = 0;
-    memset((char *)&SharedMemBuffer::getData()->store.lastCoinType[0],
-            0x00, sizeof(SharedMemBuffer::getData()->store.lastCoinType));
-    memset((char *)&SharedMemBuffer::getData()->store.lastCoinValue[0],
-            0x00, sizeof(SharedMemBuffer::getData()->store.lastCoinValue));
-    SharedMemBuffer::getData()->store.curPayNewCoin = 0;
 }

 void gpi_storeCurrentPayment(uint32_t insertedAmount,
@@ -1171,9 +1140,7 @@ void gpi_storeCurrentPayment(uint32_t insertedAmount,
    SharedMemBuffer::getData()->store.insertedAmount = insertedAmount;
    SharedMemBuffer::getData()->store.lastCoinType[p_lastCoin] = lastCoinType;
    SharedMemBuffer::getData()->store.lastCoinValue[p_lastCoin] = lastCoinValue;
-
    p_lastCoin++;
-    SharedMemBuffer::getData()->store.curPayNewCoin++;
 }

 uint32_t epi_CurrentPaymentGetAmount(void) {
@@ -1205,26 +1172,17 @@ bool epi_CurrentPaymentGetAllCoins(uint16_t *types, uint16_t *values) {

 void gpi_storeWakeSources(uint8_t const *receivedData) {
    SharedMemBuffer::getData()->store.wakeSrc = 0;
-    for (int nn=5; nn>=0; nn--) {
+    for (int nn=7; nn>=0; nn--) {
        uint8_t const uctmp = receivedData[nn];
        SharedMemBuffer::getData()->store.wakeSrc |= uctmp;
        SharedMemBuffer::getData()->store.wakeSrc <<= 8;
    }
-    SharedMemBuffer::getData()->store.wakeReason = receivedData[6];
-
 }

 uint64_t epi_getWakeSources(void) {
    return SharedMemBuffer::getDataConst()->store.wakeSrc;
 }

-uint8_t epi_getWakeReason(void)
-{
-    return SharedMemBuffer::getDataConst()->store.wakeReason;
-}
-
-
-
 void gpi_storeExtendedTime(uint8_t leng, uint8_t const *data) {
    leng = std::min(leng, (uint8_t)(64));
    SharedMemBuffer::getData()->store.rbDevParamLen = leng;
@@ -1258,8 +1216,6 @@ void epi_restoreDeviceConditions(uint8_t *leng, uint8_t *data) {
            *leng);
 }

-
-
 // store dynamic machine conditions
 void gpi_storeDynMachineConditions(uint8_t leng, uint8_t const *data) {
    SharedMemBuffer::getData()->store.machCondLen = leng;
@@ -1347,24 +1303,3 @@ uint32_t epi_getCashBoxContent(void) {
 uint16_t epi_getNrOfCoinsInCashBox(void) {
    return SharedMemBuffer::getDataConst()->store.nrOfCoins;
 }
-
-
-
-
-
-void gpi_storeDcDataValid(bool isVal)
-{
-    SharedMemBuffer::getData()->store.dcDataValid = isVal;
-}
-
-
-bool gpi_areDcDataValid()
-{
-    return SharedMemBuffer::getDataConst()->store.dcDataValid;
-}
-
-
-bool epi_areDcDataValid()
-{
-    return SharedMemBuffer::getData()->store.dcDataValid;
-}