Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Hi,When transmitting data to the ttySTM0 port, the data goes to the UART4_TX pin connected to the JTAG virtual serial input. However, I need an available TTL serial port to communicate with a microcontroller. How do I enable the USART1 port connected...
Hello,I’m currently rebuilding the device tree (DTS) for our custom board. I’ve modified the pin configurations according to our schematic. Could you please confirm if updating only the following files is sufficient for our customization?stm32mp257f...
Does anyone know how to see and set the cacheable status of memory regions in an MP25x series micro? It is very simple for the H755: you pull up the cores in the Cube, and the MPU fields are all there to fill out. The memory regions outlined in the R...
Hey,,I'm working on an STM32MP2 project and need help with Yocto. I generated a device tree with CubeMX and want to modify it so that I can activate the ums 0 mmc 1 command in the U-Boot terminal with the USB configured for 3.x speeds instead of the ...
Hello ST Community,I am working with the STM32MP257F-EV1 Evaluation Board and following the steps described in the official STM32 DDR Firmware Util documentation as per attached document below.While performing the DDR firmware update and running the ...
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...
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