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STM-L476 inceased sleep power problem #1721

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star297 opened this issue May 7, 2016 · 4 comments
Closed

STM-L476 inceased sleep power problem #1721

star297 opened this issue May 7, 2016 · 4 comments

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@star297
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star297 commented May 7, 2016

@bcostm
Since one the recent updates for the L476 target, the deepsleep current has gone way off spec.
We now have around 115uA instead of 5 - 6uA.
After digging around, the problem occurred in revision 103 with the RTC changes.
Revision 102 is working.
If its a compromise of having RTC running on LSI then ditch that and keep the low power, far more important.

See PR #1832

@ciarmcom
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ciarmcom commented Aug 1, 2016

ARM Internal Ref: IOTMORF-193

@sg- sg- removed the mirrored label Aug 12, 2016
@bcostm
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bcostm commented Sep 9, 2016

Can you please close this issue if the consumption problem is solved ?

In PR #1832

Current consumption is correct on both LSI and LSE modes with RTC functioning as expected.

@sg-
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sg- commented Jan 16, 2017

@star297 Is this resolved?

@helmut64
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helmut64 commented Jan 16, 2017

The problem was resolved until rev#132 it worked fine, it is again broken in #133 (issue #3542). It has been fixed according to my input (HAL_PWREx_EnableLowPowerRunMode). I verified the head version it works now fine.
The case can be closed.

@0xc0170 0xc0170 closed this as completed Jan 16, 2017
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