About dtrae.1

dtrae.1 · 2021-02-17

This is the sequence of events:Enter Shutdown with RTC Wake up timer enabled (5 seconds)Brown out, remove and restore powerPOR Reset occurs, correct PWR->CSR = 0x0C000600Clear CSR flags by writing 1 to RMVF in CSRRead CSR flags and confirm they are c...

dtrae.1 · 2021-02-19

Yes, for example if you give a low going pulse on the NRST pin, you get the PINRST flag for the corresponding wake/reset. The following wake the flag is cleared as it should be.

dtrae.1 · 2021-02-18

I'm seeing this on STM32L475VGT and STM32L475VET. I've demonstrated the issue on the B-L475E-IOT01A Discovery kit as well as my own hardware. Powered by battery or a power supply.

User statistics

User Activity

What is the correct procedure to recover an STM32L4x that has been put in Shutdown and experiences a brown out or POR. it shows the correct flags after reset, but the same flags appear after subsequent Shutdown periods.

Re: What is the correct procedure to recover an STM32L4x that has been put in Shutdown and experiences a brown out or POR. it shows the correct flags after reset, but the same flags appear after subsequent Shutdown periods.

Re: What is the correct procedure to recover an STM32L4x that has been put in Shutdown and experiences a brown out or POR. it shows the correct flags after reset, but the same flags appear after subsequent Shutdown periods.