Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Hello! I am getting this error, and tried everything I think, getting this error:root@br-elec-01011-mu-rvt70hsmnwc00:~# dmesg | grep error && ls -l /dev/ttySTM*[ 1.286601] stm32mp157-pinctrl: probe of soc:pin-controller-z@54004000 failed with error -...
Due to the default removal of CPUFreq configuration in the patch file after applying RTpatch, I am unable to obtain the current CPU frequency through the following command.reference:如何更改 CPU 频率 - stm32mpuI also try lscpu and /proc/cpuinfo and so on.T...
Hello,I'm trying to use a camera with the board STM32MP257F-EV1.I already flashed the SD card according to the wiki https://wiki.st.com/stm32mpu/wiki/STM32MP25_Evaluation_boards_-_Starter_Package. But I don't have the camera board B-CAMS-IMX, but the...
Hi,I have the STM32MP257F-EV1 and I would like to load a kernel patched with X-LINUX-RT. I am after the PREEMPT_RT functionality.I have followed the instructions from https://wiki.st.com/stm32mpu/wiki/X-LINUX-RT_expansion_package#How_to_install_X-LIN...
Hi Dear Sir,I am using linux6.6.48 (with st patch)based on stm32mp135d,I trying to setup DMA2D but cannot find correct dts setting. and I can see the dma2d driver is supported in this kernel. but how to config dma2d in dts ?please help. thank you ver...
I have a STM32MP135F with a 3V3 47mF supercap on its VBAT line.Internal RTC appears to work fine with power outages up to 3 or 4 hours, whereas I hoped one day. I see in datasheet "Table 27. Current consumption in Vbat mode" that I can tweak VBAT pow...
I'm trying to perform the first boot on the STM32MP257F-EV1 following this guide: STM32MP25 Evaluation boards - Starter Package. I've connected the LCD screen to the board according to the instructions.The board is powered by USB-C on CN21, and the ...
Hi everyone,I'm a beginner when it comes to STM32 MPU, and from the very beginning I've had an issue with the HDMI output on my STM32MP257F-DK board, which I received from my university. Naturally, I wanted to start with the Starter Package to explor...
I am using a som STM32MP255 digi connectcore board (CCMP25) for an audio application. I'm using the SAI2 lines for PCM. While playback gives me some signal, capture always results in inout/output error. For my application, the som will be the pcm sla...
I making a custom ST32MP151 board with Nordic 4G, Wifi and bluettooth. I did submit a schematic and PCB review to ST via Arrow distrubitor.Only 2 sticking ponits. The DDR3 memeory connections I coppied from ST APP NOTE AN5031 page 38, ST now says th...
