STM32 MPUs products

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STM32MP1 - Bare metal on A7

Hi,I have a current project using the M7 that I need to port over to the A7. The goal is to be running bare-metal code on the A7, like we are on the M7. Currently, I am following this open source guide to run bare-metal on the A7 and it seems to work...

mkurtz by Associate II
  • 6 replies
  • 0 kudos

Synchronizing A7 and M4 based on a PPS signal

Hello everyone,I need a way to synchronize A7 and M4 cores (find the same timestamp) within 1 ~ 2 usec. Is there any shared timer or resources except for memory and virtual serial com between these two cores? I have a PPS signal and I want A7 to be a...

S_2 by Associate II
  • 1 replies
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Resolved! STM32MP1 cannot read M4 message

Hi! I have created a program to send messages between cores (A7 and M4), using virtual uart. The messages that are sent from the A7 core are received by the M4 core. My error occurs when I try to read the messages that are sent from the M4 core to th...

TArre.1 by Associate III
  • 4 replies
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Resolved! Modify Kernel splash screen image (psplash-drm)

Hi there, I've got an STM32MP157F-DK2 devkit, I managed to set up all the packages, including Yocto distribution (Distribution Package) and all seems to be working fine for me. Now I'm starting to modify ST distribution, just to get used to the envir...

SScar.2 by Senior
  • 4 replies
  • 0 kudos

TF-A VDD and phandle errors

Hi, I have upgraded to Ecosystem 3.1.1 and have started to get warnings in TF-A when booting up my stm32mp151c. These are the warnings: NOTICE: CPU: STM32MP151CAA Rev.B NOTICE: Model: STMicroelectronics custom STM32CubeMX board NOTICE: Bootrom aut...

JMour.2 by Associate II
  • 1 replies
  • 0 kudos

Resolved! ADC and DAC not working after resume from standby

We are migrating from ecosystem version 2.1.0 to 4.0.0. We have a custom board with STM32MP157C.After resuming from STANDBY the ADCs and DAC, used by M4, no longer work. They are initialized and started without error, but all ADC channel data reads 2...

Emma by Associate II
  • 4 replies
  • 0 kudos