Important changes to forums and questions
All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
9 years, 1 month ago.
Low power ?
Mr STM, any chance of some low power? Ideally deep sleep with timer wake up in the order of 5uA or less, allowing RTC running on vBAT. This really applies for all the STM platforms.
Question relating to:
1 Answer
9 years, 1 month ago.
Hello Paul,
As you've seen, the mbed 2 API does not offer any function to handle low power capabilities offered by a MCU. However, as the mbd API for all STM32 devices is based on the corresponding STM32 HAL, it is possible to mix both mbed standard API with the STM32Cube HAL one. By doing this, you can easily make use of the low power capability of the STM32L4.
You can find here (https://developer.mbed.org/teams/ST/code/DISCO_L476VG_Sleep/) a small example showing this.
I hope that it will help you.
Best Regards,
Thierry,
The mbed 2 API does not offer any function to handle low power capabilities offered by a MCU.
Can you be more specific? As Paul indicated above, I assume he would like to get around 5uA if the platform goes into deepsleep() with RTC running as a wakeup source.
posted by 22 Oct 2015Now working with Erik Olieman's WakeUp library:
https://developer.mbed.org/users/Sissors/code/WakeUp/
SystemClockConfig and LowPowerConfiguration functions are not required with deepsleep, it achieves 17.5uA with with the LCD drive active, around 8uA without.
posted by 22 Oct 2015