STM32 MPUs Embedded software

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Resolved! About VBAT battery replacement

Hi team,I'm developing a PCB that implements STM32MP151AAA3.I think VBAT is a backup power supply for RTC, so I'm planning to supply power to VBAT from a button battery.Will the RTC be reset when this button battery is changed?If it is so, is there a...

tatsuya by Associate II
  • 3 replies
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Permanent current drain from VBAT

Hi,we are using a coin cell to supply the internal RTC of an STM32MP157 when our system is unpowered.This works as expected - as long as the external supply is off. As soon as the system is powered on, the battery is discharged with >20µA.Observing t...

jvog.sen by Associate II
  • 4 replies
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Using HAL_RTC in TouchGFX

Hello All,forgive me if this as an obvious mistake but I'm completely new to TouchGFX. I'm using STM32 MPU, with Cube, FreeRTOS and TouchGFXI have created a page in TouchGFX using the digital clock object, I have created a TickEvent to update the clo...

DPyke.1 by Associate
  • 1 replies
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Resolved! STM32MP1) How to set the date and keep it ?

Hello all ~​I have STM32MP157A-EV1 and STM32MP157C-DK2. I want to change system time and keep it. But It is not working well. Below is the test log on EV1.root@stm32mp1:~# date -s "20031025 18:00:00" Sat Oct 25 18:00:00 UTC 2003 root@stm32mp1:~# date...

Hello everyone, I am using M41t62 driver. I try to compile this driver as a linux module (debian). I have problem with one include header HAL_RTCSensor.h. Where can i find this header ? or do i need to write them for my need ? Thanks in advance

The RTC clock is on motherboard and usesthis driver (M41T62). I obtained source code from your website. I try to compile this driver as a linux module (debian). I have learnt that this driver is not supported.

bdavi.1 by Associate
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how to use vbat in dtsi configuration for RTC back up, i had checked in evk and dk1 and dk2 dtsi, no reference available. any one please share you thoughts

Ara.1 by Senior
  • 7 replies
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