About sroll

sroll · 2020-06-09

Hi,when i use sleep mode, i have a reset problem on STM32L431CCT6 only on recent batches.I implemented the workaround described in section 2.2.5 of dm00218224-stm32l431xx-device-errata-stmicroelectronics.pdf but without success.The problem only affec...

sroll · 2020-06-15

Hi,I have found the source of my problem. When the STM32 returns from SLEEP (WFI) mode with mainregulator in lowpower mode the CPU may read an incorrect value from the Flash memory.The workarround is to call HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_...

sroll · 2020-06-10

I already tried with an IWDG prescalar set to 256 and I still have a reset.

sroll · 2020-06-10

I think the IWDG work well. I removed the IWDG activation from my SW to suppress the reset. With this code, sometimes the UART stops but the other tasks seem to work well and sometimes all the tasks seem to stop.I will try to reproduce with a minimal...

sroll · 2020-06-10

Yes IWDG.The IWDG configuration:prescaler:16window value:4095down-counter reload value 4095=> reset if no kick since 2sThe IWDG is kicked every secondThe SLEEP activation is done with the HAL command: HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON,...

sroll · 2020-06-10

the reset is caused by iwatchdog but i don't know why. To have the problem, I must have: a stm32 from a recent batch SW launched without JTAG SLEEP mode activated (every ms in my case).One difficulty is that when I try to debug and connect JTAG, the ...

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STM32L431 Spurious RESET on recent component batches

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Re: STM32L431 Spurious RESET on recent component batches

Re: STM32L431 Spurious RESET on recent component batches