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1768 CAN IAP upgrade
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CAN IAP routine uses two pieces of BMW to develop real Check into "CAN IAP program" and "CAN IAP panels"
The programming Board (ID=0x01) Receiver Board (ID=0x02) connects CAN1 (CAN1L CAN1L,CAN1H
CAN1H), Baud rate 500K, programming by reading the SD card on the Board in the app.bin file, and then transferred to the receiving Board,
Transfer 1024 bytes at a time, then wait to receive Board sends "CONTINUE" signal to send to the next 
liuchaonuaa799218 2016-08-23
liuchaonuaa799218 2 0
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STM32 CAN online upgrade
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Programming: read the SD card if there is "Can_Updata.bin" file, if the file exists, you CAN
send and "UPDATA" information, waiting for the target returns "OK" message, read the
contents of the file after, sending the first eight bytes Application of MSP and the starting
address of the interrupt vector, waiting for the target returns "BEGIN" information, then
continue from the text liuchaonuaa799218 2016-08-23
liuchaonuaa799218 2 0
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