Add comment for the procedure of downloading device controller.

This commit is contained in:
Gerhard Hoffmann 2023-06-27 17:31:38 +02:00
parent 61afdfc325
commit c7acc2a99b

View File

@ -376,6 +376,38 @@ bool Update::downloadBinaryToDC(QString const &bFile) const {
return true; return true;
} }
/*
Using the DC bootloader:
1 : bl_reboot() // send to application, want DC2 to reset (in order to start
// the bootloader)
2 : bl_startBL(): // send within 4s after DC poewer-on, otherwise bl is left
3 : bl_check(): // send command to verify if bl is up
4 : bl_isUp(): // returns true if bl is up and running
5 : bl_sendAddress(blockNumber)
// send start address, nr of 64-byte block, start with 0
// will be sent only for following block-numbers:
// 0, 1024, 2048, 3072 and 4096, so basically every 64kByte
// for other addresses nothing happens
6 : bl_wasSendingAddOK()
// return val: 0: no response by now
// 1: error
// 10: OK
7 : bl_sendDataBlock()
// send 64 byte from bin file
8 : bl_sendLastBlock()
// send this command after all data are transferred
9 : bl_wasSendingDataOK()
// return val: 0: no response by now
// 1: error
// 10: OK
10 : bl_stopBL() // leave bl and start (the new) application
*/
bool Update::updateBinary(char const *fileToSendToDC) { bool Update::updateBinary(char const *fileToSendToDC) {
qInfo() << "updating device controller binary" << fileToSendToDC; qInfo() << "updating device controller binary" << fileToSendToDC;
QFile fn(fileToSendToDC); QFile fn(fileToSendToDC);