Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Hi,We are using stm32mp157a processor and we are working on uboot-v2018.11 at Linux side. I have an idea on board-debug-uart_init().Path for board_debug_uart_init().Path :board/st/stm32mp1/board.cIn board-debug-uart_init() .We have only UART_TX infor...
Hello, my main seriale console should be USART2 instead of UART4. I modified the kernel dts as follows: chosen { stdout-path = "serial0:115200n8"; }; aliases { ethernet0 = ðernet0; mmc0 = &sdmmc1; mmc1 = &sdmmc2; serial0 = &usart2; ...
在根�?�ST�??供的tf-a编译阶段，为什么我使用make -f Makefile.sdk TF_A_CONFIG=trusted TFA_DEVICETREE=stm32mp157c-dk2 all这个指令编译的时候会报下�?�这些错误？
I have attached an Adafruit LCD (https://www.adafruit.com/product/1770) to my STM32MP157D-DK1 on SPI5 (on the RPi header). I am working with Yocto and the STM32MP1 BSP (but not OpenSTLinux). I am attempting to modify core-image-minimal to enable the ...
On DK2, using devmem2 on linux I read that GPIOH->MODER/ODR (0x50009000/0x50009014) are all zeroes. The same for GPIOA. OTOH some other things can be read out like RTC clock settings. Is there a way to read the GPIO registers?
Hello, I'm designing a board based on STM32MP1 and it's my first time using QUADSPI.I need to boot on a NorFlash (MLO + U-boot), and my Linux filesystem will be on a NandFlash.Those constraint come from the fact that on my previous system (based on a...
We are trying to implement a KSZ8041FTL in an embedded design. We are using an STM32MP157 device in a SOC provided by Octavo systems (OSD32MP157C-512M-BAA). We have used design resources provided by Microchip and followed examples provided. We have f...
It seems that I have a problem with DMA, but I'm not sure. Would you please take a look at the below screenDts looksI intend to achieve MII with self-generated quartz.Unfortunately, I'm stuck on this "Failed to reset the DMA".
The ST-Link LEDs are very dimly lit when powered...they are much brighter on my STM32MP157F-DK2 board. I suspect some hardware problem with the MPU board. Also, the CPU LEDs do appear to be running (the Linux Blue LED blinks after a while, and with...
