Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
I am testing lan by connecting usb ethernet (LAN7850) to stm32mp157f-dk2 board.Drivers microchip.ko and lan78xx.ko are loaded automatically and device eth1 appears normally.But when I connect or remove the cable to the lan port it doesn't recognize i...
I'm now trying to read OTP 13~15 from remoteproc driver to enc/decrypt m4 firmware.From NVMEM overview. I learn below informationOTP 13~15 are non-secured areaThe name of device is "stm32-romem0"NVMEM kernel APII can successfully get OTP 13~15 from ...
Hi, I would like to set all 8 pins in port Z to unsecure so i use these pins as other ports. I read data sheet portz is set to secure mode as default after reset. And I tried write into it and system crashed.Thanks
I am currently developing using STM32mp157fad and have a question. Here are the steps I have taken:Used STM32CubeProgrammer to upload the stm32mp157f-ev1 image to an SD card.Used STM32CubeMX to configure the GPIOs to be used with stm32mp157fad, gener...
I am using UART over RS-485 on an STM32MP153AAB3.The communication fails because the actual baudrate is off from the specified baudrate. With a specified baudrate of 9600 Bits/s, I am getting an actual baudrate of 9970 Bits/s, as you can see here (ti...
Hello, I use Optee on a stm32mp157f-dk2 board, version is the and the corresponding BSP :optee-os 3.16.0-stm32mpu-boot v2021.10-stm32mpLinux v5.15-stm32mpAll my changes are committed and built using a yocto meta-layer : https://github.com/embetrix/m...
I want the cortex-m4 to do pwmget data from sensors and transfer to cortex-A7So, I write simple code to do PWM and find out the RCC in stm32cubeIDE not work because linux take control the clock config.My question is, What is the best way to configure...
Hi,I try to connect ADC channels with libiio for my custom board based on the stm32mp157caa3. I followed the instructions from the linkhttps://wiki.st.com/stm32mpu/wiki/IIO_libiiohttps://wiki.st.com/stm32mpu/wiki/ADC_device_tree_configuration#DT_conf...
Hi,I upgraded the image for our custom board to 4.1 last week. After fixing the sw issuesconcerning the recipe syntax changes i have now problems to boot the new image.Info: Our board does not use PMIC but static voltage configuration:/ { model =...
Can ST please provide a guide for bringing up a custom board without using the STPMIC? We are extremely space constrained and unable to fit the PMIC. For our use case we just want simple LDO's with bucks as required.There is no material I can find th...
