Ask questions and find answers on STM32 microprocessors and dedicated embedded software solutions, such as Yocto SDK, Qt, and OP-TEE.
SummaryI'm attempting to add support for a custom STM32MP135-based board (M5Stack CoreMP135) to Yocto using meta-st layers, but the u-boot-stm32mp recipe appears to enforce rigid constraints that prevent using custom defconfigs and device trees. Envi...
Hello,I tried to understand what does A35-TD does better than M33-TD flavor and vice versa. But I don't find enough information. The information that confuses me is it says A35-TD Flavor has Hard real time on Arm Cortex-M33. What does it mean operati...
I'm working on adding a custom STM32MP257 board based on the openstlinux distribution package, and I'm currently using the STM32MP257F-EV1 board. I'm having problems with booting on eMMC with a stm32cubemx-generated device tree. What I've done:* Crea...
We have a custom board with an STM32MP151A and STPMIC1. The PMIC is connected to I2C4 over pins PD12 and PD13.In the process of migrating our software from OpenSTLinux 6.0 to 6.2, I initially got stuck into an optee panic (attached optee-panic.log wi...
I have an issue with PMIC. It seems that Op-tee won't start och activate the PMIC. Do you know why? Any suggestion? The error is 0xffff0008 = TEE_ERROR_ITEM_NOT_FOUND.Notice that I have copied the DT from DK board. F/TC:0 0 probe_driver_node:543 Prob...
I have a platform where I need two different Linux distros, one kinda like Android's recovery environment, and one main application environment.They will have different packages, and probably also different init-systems, as the recovery environment s...
Dear all, I was trying to setup the NVIC for EXTI for certain pins on STM32MP257F over CubeMX. However the nomenclature in CubeMX confuses me a lot. As I know there are two EXTIs: EXTI1 and EXTI2 which completely changes when we look into NVIC there ...
gpioinfo outputgpiochip9 - 10 lines:line 0: "PZ0" inputline 1: "PZ1" inputline 2: "PZ2" inputline 3: "PZ3" inputgpiomon output# gpiomon --num-events 1 --edges falling PZ0^C# gpiomon --num-events 1 --edges falling PZ1^C# gpiomon --num-events 1 --edges...
Hello! I'm attempting to build a custom bootloader for the STM32MP133C, heavily reliant upon the STM32MP13XX hal layer and then provided cmsis_core and cmsis_device_mp13 packages/pieces. I'm attempting this on IAR (company decision) which has added s...
I'm in a bit of a pickle. I got a MIPI DSI screen with 1200x1920 resolution. It turns out for SMT32MP25x max vertical supported resolution is 1536. But datasheet says this. Some over-target non-guaranteed use cases are possible, but with specific co...
