Other Parts Discussed in Thread: UNIFLASH
Tool/software:
Dear expert,
The device does not work after the firmware upgrade is completed through the UART(bootloader). However, by erasing and writing the FLASH through UNIFLASH, and it can work normally. At present, 6 devices have been upgraded through UART, and 2 of them have crashed.
By comparing the FLASH content of updating by UART and UNIFLASH, they are the same. We also check the NMI flag and RESC register, there is neither error nor reset.
Please help on this issue, thank you.