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disk91 / stm32-it-sdk

Disk91 STM32 IoT SDK
https://www.disk91.com
GNU General Public License v3.0
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Low power consuption #56

Closed zokl closed 3 years ago

zokl commented 3 years ago

Hello

I would like to ask you if you have no idea where to look for a problem with the platform sleeping, if during the first sleep it shows consumption of about 3 uA and after wake up and subsequent sleepings, the minimum consumption is 2 mA. He will never get to 3uA from the first sleep. I used MURATA CMWX1ZZABZ with a Sigfox extension and low power mode __LOWPWR_MODE_STOP.

disk91 commented 3 years ago

Hello, basically this is not a SDK issue but an implementation issue.

You can enable ITSDK_LOGGER_MODULE -> __LOG_MOD_LOWPOWER to trace the wake reason and find your configuration issue.

Sincerely.

zokl commented 3 years ago

Hello, basically this is not a SDK issue but an implementation issue.

  • did you create the void stm32l_lowPowerRestoreGpioConfig() function to correctly restore the GPIO pins after waking up ?
  • did you verify your wakeup condition to ensure you are not immedialty waking up after sleeping ?

You can enable ITSDK_LOGGER_MODULE -> __LOG_MOD_LOWPOWER to trace the wake reason and find your configuration issue.

Sincerely.

Hello,

the first sleep is OK (power consuption about 3 uA) and it sleep until regular wakeup but the second and other sleeps have power consuption about 2 mA. Ther will be a problem with sleeping some parts of mcu. The wake up condition by rtc or gpio is correct. I will try to debug the processes of disabling gpio and cpu at my platform. For waking up i used your scheduler.