Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Hello community,the errata says (in combination with the missfunciton of the delay block), that only modes up to DDR50 can be used with the STM32MP1xx.Actually we now have the problem, that writing to the SD card works well but the reading through th...
Hello,I have the stm32mp157c-dk2 board and have connected two CAN Bus transceivers to it.FDCAN1 is assigned to the A7 CPU and the FDCAN2 is assigned to the M4 CPU.Both transmitters are connected to the same CAN bus. There is also a 3rd device connect...
Hello, I have received a STM32MP157F-DK2 so I develop a program to send data through the SPI port toward other device (like a STM32 nucleo, maybe).Reading about this first device I saw that example code won't work there but I should use spidev on ope...
Hi!I am using STM32MP157C-DK2 and i want to start the coprocessor from bootloader (I have readed the wiki page). First, I have done it manually and everithing works fine:I have changed kernel m4_rproc:&m4_rproc{ /*Restriction: "memory-region" proper...
I'm having trouble getting TF-A to start from USB DFU using the STM32Programmer CLI. Here's what I get:$ ./xpro_uboot_prgm.sh ------------------------------------------------------------------- STM32CubeProgrammer v2.11....
Hi all!!Follow the wiki page, I added support to kernel FIT image in my Yocto distro for the board stm32mp157c-dk2 based on openstlinux-5.15-yocto-kirkstone-mp1-v22.11.23.Just I added the option: MACHINE_FEATURES += "fit" and I selected BOOTSCHEME_LA...
Hi,We are using stm32mp157a-dk1 board. In this when we boot Cortex-M4 code with rproc commands in uboot, cortex-M4 is running.We are using stm32mp157aaa3 processor in my custom board. When we are trying to boot Cortex-M4 in Uboot with rproc commands....
Hi, community.I am trying the SD UHS-I mode on your evaluation board(STM32MP157F-EV1), but it does not work.Q1. Does HAL support UHS-I?Q2. Is it necessary to enable SDMMC_CLKCR_SELCLKRX_1? (when using STM32MP157F-EV1 board)Q3. What is the reason wh...
We need to enable/disable pwr_sw1 and pwr_sw1 preferably via sysfs:vdd_usb_sw: pwr_sw1 { regulator-name = "vdd_usb_sw"; }; vdd_sd_sw: pwr_sw2 { regulator-name = "vdd_sd_sw"; regulator-always-on; regulator-boot-on; regulator-acti...
Hi everyone,I'm trying to optimize the boot time of tf-a with Yocto but don't find much information on the web. Currently tf-a takes about 1s from the point in which it is read from NOR to the point it loads UBoot from same NOR. I optimized the Linux...
