Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Dear all:I am currently using the distribution version:V5、rt 6.1.82-rt patch、stm32mp257Prompt in Wiki，need disable CONFIG_CPU_IDLE，But in reality, it cannot be closed.Why am I paying attention here? Because I encountered an Oops exception during runn...
I am trying to probe TC358743 (HDMI to CSI ic) to STM32MP257f-dk. The ic is able to take input from the HDMI from my laptop (I is being checked as when i give an edid as input from v4l2 then the screen of my laptop gets extended).The problem is in re...
I've got a custom board built around an STM32MP135AAE3. It's designed to have an eMMC instead of an SD card, the problem is that the board was not laid out correctly and the JTAG isn't connected.I'm having trouble writing to the eMMC (that's another...
Hello ST Community,Custom STM32MP2 board with STM32MP257FAK fails rootfs mounting from eMMC in HS200 (CRC errors), works at 52MHz DDR.In the device tree side only difference is removing HS200 property and added Max frequency to 52Mhz.&sdmmc2 { pinct...
Hi everyone,we applied the ST FWU reference solution on our own platform based on the STM32MP157F.The solution was taken and adapted from the ST Yocto layer meta-st-ota (https://github.com/PRG-MPU-CUST/meta-st-ota).We have a few questions to clarify ...
I have an STM32mp135f-dk board that I have been using openstlinux-6.1 to develop images on.For my board, I made a custom device tree "iris.dtb" which I intend to use instead of the default "stm32mp135f-dk.dtb".I ran into an interesting issue where u-...
Hello,We have designed a custom board based on the STM32MP157F-DK2 platform.The design uses the STM32MP157FAC MPU and includes the following peripherals:MicroSD (SDMMC)STPMIC1 PMICDDR3L memoryEthernetUART4 for console My power sequencing, PMIC wiring...
The board was designed incorrectly, they have pins for a JTAG but forgot to actually route them to the MPU. The eMMC is not going to have a first-stage bootloader on it, and it's looking like it's not possible to flash an SPL to the eMMC over USB al...
In AN5489, the HSE is recommended to have 40 MHz. Why 40 MHz?Why not 24 MHz HSE? Is 40 MHz a specific value for a certain pheripherial?
Hi,I am new at STM32MP2. I have a stm32mp25f-ev1 board and I was able to build the distribution package and to run it on the board.My next step is to build an image for my own board that was designed using the eval board as a reference, but with many...
