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STM32F1: HAL_RTC_SetAlarm_IT corrupts system time #8399

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Arjun765 opened this issue Oct 12, 2018 · 4 comments
Closed

STM32F1: HAL_RTC_SetAlarm_IT corrupts system time #8399

Arjun765 opened this issue Oct 12, 2018 · 4 comments
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devices: st type: bug

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@Arjun765
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Arjun765 commented Oct 12, 2018 •
edited by ciarmcom
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Description

Trying to set RTC wakeup by calling HAL_RTC_SetAlarm_IT corrupts system time.
Related: #8213 #8191

Issue request type

[ ] Question
[ ] Enhancement
[x] Bug
@ciarmcom
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Internal Jira reference: https://jira.arm.com/browse/MBOCUSTRIA-28

@elm3
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elm3 commented Jan 7, 2019

@ARMmbed/team-st-mcd

@LMESTM
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LMESTM commented Jan 7, 2019

@Arjun765
By calling HAL_RTC_SetAlarm_IT you're bypassing mbed Time layer so this is not recommended to do so. You should rather use mbed APIs.

mbed is designed so that you can program any timer and mbed-os is in charge of programing RTC or low power tickers to wake-up the system when needed, you don't have to program an RTC alarm explicitly.

There have been many similar discussions for instance here : #7156

@TacoGrandeTX
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@Arjun765 We're going to close this as a non-issue based on the comments from @LMESTM. If you have a problem using the Mbed API please raise a new issue.

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@ciarmcom @LMESTM @Arjun765 @elm3 @TacoGrandeTX