Errata 136

[Roei]

Hi,

I have some questions regarding errata 136.

I understand that the workaround is to ignore reset reason bits which are not RESETPIN.

However, I don't understand how ~POWER_RESETREAS_RESETPIN_Msk can help us, as the operation makes pin reset bit 0 and the other bits become 1. Isn't that the opposite from what we want?

In addition, I had some troubles with implementing watchdog, as POWER_RESETREAS_DOG_Msk was always true, until I removed errata 126 fix. Is it possible?

Thanks!

[Roei]

So how can I know that reset pin will not be set the next time WDT occurs? How can I recognize WDT reset if errata 136 clears the bit?

[Håkon Alseth]

reset pin will only be set if the reset pin is pulsed, either by a user, or an external IC.

If watchdog is the only reset source, then you shall be able to detect this in RESETREAS