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STM32 MPUs Products and hardware related

Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.

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Forum Posts

STM32MP257FAI3 Custom Board eMMC HS200 CRC Errors

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...

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Saideepakby•Associate II
  • 20 Views
  • 0 replies
  • 0 kudos

Do I absolutely have to have a bootloader during development for a custom STM32MP13 board?

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...

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cbcooperby•Senior
  • 127 Views
  • 5 replies
  • 0 kudos

Patch/help to make TFA updatable within the ST FWU (firmware update) procedure

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 ...

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Do I need to use HSE when enabling DSIHOST?

I have CubeMX 2.0.0 and I notice that if I want to enable DSIHOST, I need to first enable HSE.But the clock configuration of the DSI does not require HSE. It seems that the clock configuration of DSI seems to work with HSI in CubeMX 2.0.0.So, the que...

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DMårtby•Lead
  • 171 Views
  • 3 replies
  • 0 kudos

linux 6.1.82 RT patch cannot disable CONFIG_CPU_IDLE ，Trigger exception Oops

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...

bugman_0-1763435271710.pngbugman_1-1763435557738.png
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bugmanby•Associate III
  • 158 Views
  • 2 replies
  • 0 kudos

STM32mp135f-dk custom uboot environment not saving properly

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-...

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robo1340by•Associate II
  • 2116 Views
  • 3 replies
  • 0 kudos

Custom STM32MP157F Board – PANIC at PC 0x2FFEADA7 (Exception mode 0x16) During Boot from microSD

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...

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What is the next-generation STM32MPU after STM32MP1 and STM32MP2?

Hello,ST has released the STM32MP1 and the newer STM32MP2 series of MPU products. I would like to know what the roadmap looks like after the STM32MP2.Is there any information available about the next-generation STM32 MPU family (e.g., a potential STM...

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SullyNiuby•Associate II
  • 80 Views
  • 0 replies
  • 0 kudos

first-stage bootloader for a custom STM32MP13 board with no SD and no JTAG?

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...

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cbcooperby•Senior
  • 350 Views
  • 14 replies
  • 0 kudos

Resolved!Why is 40 MHz HSE recommended for STM32MP2?

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?

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DMårtby•Lead
  • 120 Views
  • 4 replies
  • 4 kudos
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