Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
An simple RGB LCD panel does not show any screen or backlight.Trying to solve that to enable the PWM backlight timer for it.Some post followed:https://www.kernel.org/doc/Documentation/devicetree/bindings/display/st%2Cstm32-ltdc.txthttps://community.s...
For Rockchip RGB panel this link to refers to device tree binding of panel-dpi, (MIPI-DPI), https://wiki.st.com/stm32mpu/wiki/Display_panels_hardware_componentsSeveral RGB panels are also listed in panel-simple.yaml. Which devicetree bindings one...
I have an STM32mp135f-dk board that I have been using openstlinux-6.1 to develop images on.For my board, I made a custom device tree "iris.dtb" which I intend to use instead of the default "stm32mp135f-dk.dtb".I ran into an interesting issue where u-...
I'm trying to run my application compiled and linked for DDR on STM32MP135F-DK. Following the wiki istruction it's necessary preliminary to run the DDRInit project on SYSRAM that initialize the DDR and then execute my custom program.When I execute th...
Hello,I have compiled a custom image to run on the M4 core on my stm32mp157f-dk2. I generated the code using STM32CubeMX. I am able to build it fine but am having issues launching it on the m4 core. Here are the commands that I run. echo executable.e...
Custom board. with STM32MP157 Objective is the use spidev to test and make transfer over the SPI2 bus. Problem: no ls /dev/spi*Added SPI2 using cubeMX to a project without these and generate the files.Compare the files generated with files generated ...
i try to flash starter package to our mmc but the error is found i done step by stepin botton text i bold the error please check it once and help me out why this is happend. 10:55:11 : UR connection mode is defined with the HWrst reset mode10:55:...
Hi,My LCD display format is RGB666, I removed the "LCD_R0,LCDR1, LCD_G0,LCD_G1,LCD_B0,LCD_B1" in file "stm32mp15-pinctrl.dtsi", and recompile my device tree, then upload to my board. I tried to use the LCD_R0 as GPIO with command: gpioset gpiochip7 2...
Hello,is there any example how to configure LTDC device tree entry for RGB display ?Documentation is unclear on that, only MIPI mode is quite well documented.RegardsArkadiusz
Do the SPI interface need an entry in the SCMI file, as what I2C requires to work ?if yes, So far could not find the exact entry for SPI2. According to the SCMI wiki not, but you never now. (:-))
