STM32 MPUs Embedded software and solutions

Resolved! stm32_rtc: Prescaler config failed

Hi all,I'm developing a custom board based on STM32MP153 SoC, and I need to use the internal RTC. I also need to output its 32.768kHz reference clock from I8 pin.As stated at https://wiki.st.com/stm32mpu/wiki/RTC_device_tree_configuration, into the L...

Resolved! Xlib: I can not connect to the X server

Hi!I'm in search of a better GUI programming path Now trying Xlib.Here is a simple program from the Internet#include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <X11/Xlib.h> extern int errno; int main( void ) { Di...

gtk_window_move does not work :(

Hi!Simple program on board STM32MP157C-DK2#include <gtk/gtk.h>gint width = 400;gint height = 200;gint X = 20; gint Y = 20;gint x; gint y;GtkWidget *window;int main (int argc, char *argv[]){ gtk_init(&argc, &argv); window = gtk_window_new(GTK_WIND...

Why USART 2 failed to initialize when Linux started？

board: stm32mp157a-dk1device-tree:pinctrl{ usart2_pins_b: usart2-0 { pins1 { pinmux = <STM32_PINMUX('F', 5, AF7)>; /* USART2_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { pinmux = <STM32_PINMUX('F', 4, AF7)>; /* USA...

How to build a minimal OpenSTLinux SD image with all drivers/hardware support for the DK2 Discovery board ?

I am confused by the different packages ,Starter, Distribution and Developer.Which one do I need to install/setup/build to have as the end result a "minimal" cli/shell based SD card image with support for all hardware on the DK2 board ? a "clean" ro...

Resolved! Unsuccessfully Adding an external out-of-tree Linux kernel module with Distribution_Package

Following https://wiki.st.com/stm32mpu/wiki/How_to_cross-compile_with_the_Distribution_Package4 Adding an external out-of-tree Linux kernel moduleWhen doing this step, error occurs.PC $> devtool build mymodule...WARNING: /home/tim/STM32MP15-Ecosystem...

Yocto recipe dependency issues for Kivy. Better use another GUI framework?

I'm writing an Yocto recipe to integrate Kivy (kivy.org) into the st-image-weston image for STM32MP157C-DK2. Main questions:1) Is there recommended GUI framework for openSTLinux, beside QT (license issues).2) Did someone ever add Kivy successfully to...

Resolved! Configuring ETZPC in the TF-A device tree issue

Hi,According to this link https://wiki.st.com/stm32mpu/wiki/ETZPC_device_tree_configuration#DT_configuration_-28board_level-29it is possible to configure the ETZPC peripheral in the device tree of TF-A. I am using a distribution package, so I modifie...

Resolved! Configure kernel source code failed

Following the instruction from https://github.com/STMicroelectronics/meta-st-stm32mp/blob/thud/recipes-kernel/linux/linux-stm32mp/README.HOW_TO.txt* Configure on a build directory (different of kernel source code directory) Here for example, build ...

Resolved! How to get ethernet connection up with st_image core with DK2 board?

Hello all,I have a STM32MP157C-DK2, and I want to use the minimal st-image-core.I have been able to use/build "st-image-weston", and when its starts, I can see my board on the local network, ifconfig says me eth0 has an ip address and I can ssh it.Wh...