Hello! Our machine master uses LPC54608, the screen is stuck after starting up, JLink locates the PC pointer and finds that the software has entered the hardware abnormal interrupt function, which is in a dead loop state. After testing, it is found that in void BOARD_BootClockPLL180M(void), when the MCU frequency is 180MHz and there is no re-burning program, if the value of FlashTIM is set to 0x8, the system will crash immediately, and if it is switched to 0x7, the system will crash after 24 hours. Then it was found that turning off flash acceleration also had an impact on the crash time, in addition, re-burning the program will also make the system return to normal, what is the reason for this? What can be done to avoid this problem?
After repeated press several times, the machine will be stuck randomly, but it can be restored by re-burning the program or replacing the chip. By connecting J-LINK to the crashed machine and changing the FLASHTIM and Flash acceleration enable register values in the Flash configuration register, the frozen state can be removed. But a day later, this happened again. Is it related to the Flash configuration register? Our sample SDK is not available in its entirety, which part of the source code do you want to see?
