STM32 MPUs Products and hardware related

Can not controll GPIO from Kernel Space

Hello i wanted to use the GPIOLib to control my pin manualy. so i added this in my device tree.&usart3 { pinctrl-names = "default", "sleep", "idle"; pinctrl-0 = <&usart3_pins_c>; pinctrl-1 = <&usart3_sleep_pins_c>; pinctrl-2 = <&usart3_idle_pins_c>; ...

Win10 Cubeprogrammer and DFU Bootloader STM32MP1 instable

I work on Win10. DFU is seen in the settings. I use the programmer to transfer the linux image to the customer MP1 board. The transfer is very instable and break on different files/positions. Very seldom the complete *.tsv image is transfered and I c...

"stm32-usart 4000f000.serial: failed to get alias id, errno -19" and additional likely related error output to std-out

I've noticed when booting one of our board designs with a STM32MP157C in openstlinux-5.4-dunfell-mp1-20-11-12 with Weston Wayland under the STM32MP157-Ecosystem-v2.1.0 that multiple times when the kernel is loading I'll see the following messages out...

Can you recommend a microprocessor not a microcontroller for an electric vehicle applications? I need to design an ECU containing microprocessor to connect to front/rear led of an EV.

How to correctly setup PWM output in STM32MP1?

Hi everyone.I'm using a STM32MP151CAC and I have the following DTS:// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright (C) STMicroelectronics 2018 - All Rights Reserved * Author: Alexandre Torgue <alexandre.torgue@st.com>. */   /...

Has anyone successfully run Chromium on an ST32MP1 series?

I was able to build an image containing Chromium by adding meta-browser, meta-clang (dunfell branch) and meta-python2. I can verify Chromium built and was included in the image.The problem is when Chromium runs, it errors out with an error indicatin...

Porting TF-A firmware to a custom stm32mp157a board does not boot

My custom board is based on stm32mp157a-dk1,remove the pmic and usb type c circuit,​My porting steps are as follows:1. porting u-boot, verify that u-boot functions properly, compile the uboot trusted image, copy u-boot.dtb to FIP_artifacts/u-boot/ an...

Secondary SSBL partition on eMMC / trusted mode

We would like to implement a dual partitioning system and I am trying to find out if it is possible to have a secondary SSBL (u-boot) partition in trusted mode (eMMC).I don't see any problems for bootfs, vendorfs, rootfs and userfs. FSBL is already r...

Are series resistors required on ddr address line?

I have a STM32MP157D-DK1 board. I downloaded design files and surprisingly found there were 56ohm series resistors on ddr address lines. Though series resistors are normally found on data and address lines for ddr1 or ddr2, I have never seen them use...