AnsweredAssumed Answered

STM32 chip keeps rebooting

Question asked by mao on Dec 11, 2015
Latest reply on Dec 12, 2015 by mao
Hi all,
it is really very weird.
I am using stm32f411rct6,which has 256k program space and 128k ram.
Very often the program is weird, keeps rebooting or dead at all.

For example in a subroutine, when I delete 2 or 3 lines of code, it is working well. If I keep them, the chip keeps rebooting. I swear the lines I deleted have no any problem in logic.
Adding code somewhere else may also have the similar problem.
Sometime after I add the code, the chip is totally dead. No any response.

Please give me some clue to debug:
1. limit of ram, overflow?
Program Size: Code=28884 RO-data=456 RW-data=748 ZI-data=29364 
I don't really use too much space.
2. when chip keeps rebooting, I measured the voltage. It is fluctuating. But I swear the code I added, which causes the problem, have nothing to do with the power.

Please help.