STM32 MPUs Products

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Resolved! Workflow improvment

When I'm working on configuring devicetree for a new board, adding new nodes and tweaking values, I often run into a un-bootable system. What I would like is that there is a bit more information of what goes wrong.Like now it just quits booting if so...

JOhn1 by Associate III
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What is the maximum data rate of emmc can have with STM32MP15?

My eMMC for my custom board support HS200 so I/O should be 1.8V, does STM32MP15 supports this speed and what is the max data rate?I will be only using eMMC for booting (no SD card or any kind of boot device) so should I go with STPMIC1A or STPMIC1B?W...

Gencay by Associate III
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Resolved! I created DTS files for my custom board, my DDR configuration is same as stm32mp157A-ev1 board and I am using same mpu. Why some of the CUBEMX generated TF-A DDR registers and Eval registers are different?

EVAL BOARD (stm32mp15-ddr.dtsi)   #define DDR_PCFGR_0 0x00010000 #define DDR_PCFGR_1 0x00010001   My Board (TF-A/stm32mp15-mx-dtsi)   #define DDR_PCFGR_0 0x00000000 #define DDR_PCFGR_1 0x00000000Why are these registers different even though I have th...

Gencay by Associate III
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Enabling sdmmc3, What will happen?

For my custom board, I will be using emmc on the sdmmc2 and wireless on sdmmc3 so according to this article I have to change linux kernel boot command. Since I am not going to have anything on the sdmmc1 (SD Card) isn't it suppose to boot from emmc w...

Gencay by Associate III
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Debug SPL with OpenOCD

I would like to bring up the openocd and gdb debugger on a custom board with STM32MP157D processor with 1 GB (2x512MB 16 bit DDR3 chips) x 32 bit. The modified device-tree and SPL gives me the following issue:U-Boot SPL 2022.01-rc3 (Sep 07 2022 - 16:...

SPL Initialize Error on DDR Ram speed

Hello,I am trying to bring up a custom board based on the STM32MP157D MPU via SDCard.I am using u-boot 2022-01-rc3 as bootloader and the boot is using SPL (I have an SDCard with a GPT Partition table with fsbl1, fsbl2 and ssbl named partitions).This ...