Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
i am facing the issue like i could not able to access the PWM pinsi want like this only (/sys/class/pwm/pwmchipX/).but i get output like this only. {root@stm32mp1:~# cd /sys/class/pwm/root@stm32mp1:/sys/class/pwm# lsroot@stm32mp1:/sys/class/pwm# ls}...
As the title says, when I add the (with or without "regulator-always-on") vdd: vdd { compatible = "regulator-fixed"; regulator-name = "vdd"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; or vdd_ddr: vdd_ddr { ...
Hello,I am currently using the STM32MP157D to develop some tests. It seems that a specific U-BOOT has been developed by ST and flashed in the default factory eMMC.On this specific U-BOOT, some self-test commands are interesting.Could it be possible t...
Hi, I have a board that I designed that's not booting and I am struggling to workout why.I don't see any output on UART4 when booting and I also noticed that openocd reports the program counter as the following which I believe means that its still in...
MP135 是否具有带双网络端口的裸机程序？客户使用 ThreadX+NetDuoX。
I am using the STM32MP131 in a baremetal environment. Since there is no internal flash, I am planning to use external flash and DDR.I have confirmed that writing to and reading from the flash works, but I don't know how to start from FLASH instead of...
I would like to only use cgroup v2 and would like to modify the kernel cmdline boot arguments as follows:, . I searched internet and suggestion is to useadd systemd. unified_cgroup_hierarchy=1 under /etc/default/grub , followed by sudo update-grub ....
NOTICE: CPU: STM32MP157FAC Rev.ZNOTICE: Model: STMicroelectronics STM32MP157F-DK2 Discovery BoardINFO: PMIC version = 0x21INFO: Reset reason (0x14):INFO: Pad Reset from NRSTINFO: FCONF: Reading TB_FW firmware configuration file from: 0x2ffe2000INFO: ...
Hello,Would it be possible to have an updated guide on how to use a custom device tree within my own layer for latest STM32MP1 Ecosystem ?The one provided here "How to compile the device tree with the Distribution package" is clearly outdated, as th...
Hello,We're trying to boot our prototype which contains an STM32MP157FAA.Unfortunately, we didn't implement an oscillator/quartz on the board, so we are unable to use HSE and can only use HSI.We have access to USB1, USB2, SDMMC3, and UART4.Is there a...
