Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Can someone do me a favor?I need some help.I'm using the board of the stm32mp157 chip.When I try to restart the board, he occasionally prompts for some errors.[drm] ltdc fifo underrun: please verify display modeAnd at the same time, my hdmi monitor d...
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...
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...
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:...
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 ...
Hi. Some examples use ltdc_ep0_out / reg 0, while others use ltdc_ep1_out / reg 1.e.g.https://community.st.com/s/question/0D50X0000BG0RAWSQ3/stm32mp1-ltdc-device-tree-for-rgb-displayWhere can I find more details on when to use reg 0 vs reg 1?<dc { ...
Hi, the image provided by ST, usb0 ethernet show up as well when try 'ifconfig'.We would like to try with buildroot. We pick kernel from ST: linux-5.15-stm32mp-r1.tar.gzWe pick config from ST: en.SOURCES-stm32mp1-openstlinux-5.15-yocto-kirkstone-mp1-...
I've put TF-A into verbose printing, resulting in prints regarding BSEC access.But the printouts from TF-A vs U-boot tell different, or atleast confusing information.What gives?(TF-A 2.6-r1, U-Boot 2020.10-r2)> stm32key readVERBOSE: BSEC: OTP 24 is l...
I`ve built st-image-weston for stm32mp157f-disco board with flutter and clang layer. Then I built SDK with:bitbake core-image-weston -c populate_sdkThen I installed SDK with .tmp/deploy/sdk/core-image-weston-openstlinux-weston-stm32mp15-disco-x86_64-...
When I open it with this command,less README-CHECK-GPUCheck GPU ========= GPU can be deactivated by fuse or not present in some SOC So in case the GPU is not present, you must configure weston on pix-man by creating this file : /etc/default/westo...
