independent watch dog in stm32l151c8t6

satya · ‎2013-08-03

Posted on August 03, 2013 at 13:12

we need activation of iwdg active only in normal mode, deactive in stop mode.

satya.ch

bogusz · ‎2015-06-02

Posted on June 02, 2015 at 10:58

Even in HAL drivers is written:

(+) Exit:

(++) By issuing an interrupt or a wakeup event, the MSI RC oscillator is selected as system clock.

It's not true, because even IWDG will make a reset in this mode which is so bad and can't be avoided in any way.

Lynn Linse · ‎2016-12-15

Posted on December 15, 2016 at 22:21

No, it can be avoided. Per the STM manuals there is something called the IWDG_STOP bit in the FLASH_OPTR register, which (if set) freezes the IWDG during stop. I'm actually digging through the forum looking for more explanation of what this means!