2015-12-28 05:18 PM
I have been battling with a problem which blocks wakeup from Standby mode when using more than one wakeup source (RTC and Wakeup Pin PA0) this has already been identified and acknowledged by ST and the solution to the problem is provided in ''STM32F40x and STM32F41x Errata sheet Section 2.1.5
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/errata_sheet/DM00037591.pdf
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/errata_sheet/DM00037591.pdf
#locked-in-standby-mode2015-12-28 09:15 PM
Do you check if PA0 is asserted before you do this?
2015-12-29 08:27 AM
Hi Clive,
No, I didn't explicitly check if PA0 is asserted. Why is it needed to check if its asserted?I assume its not asserted bcoz the peripheral that asserts PA0 right now is disconnected and even in this case the RTC doesn't get it out of standby after 60 seconds.Thanks,Walter2015-12-29 08:44 AM
Hi,
I read the PA0 and Yes it is set to 1 before I do the clearing of the flags.Walter