Ask questions and find answers on STM32 microprocessors and dedicated embedded software solutions, such as Yocto SDK, Qt, and OP-TEE.
Hi,I encounter an extraordinary problem with STPMIC1APQR. When powering on the board without loading any images voltages on each section are as described in the PMIC documentation. When I start fsbl the voltages change, and increase not as described ...
I have a custom board with a STM32MP157AAB3 and I am trying to boot it with the SD card. I have tested the SD card on a STM32MP157C-DK2 and it boots to Linux fine. When I probe the SD card lines, I can see the clock is toggling for a long time and ...
I try to spi communication between my board with STM32MP157AACx microprocessor and STM32F429 disco board. I write code using bare metal for master side(my board), using HAL library for slave board(STM32F429). My problem is that I can't receive data f...
Hi,I am doing "4.Adding an external out-of-tree Linux kernel module" at the below link.https://wiki.st.com/stm32mpu/wiki/How_to_cross-compile_with_the_Distribution_PackageI am suffering from a module building problem and got the message below. I don'...
Hi,We are using stm32mp157a-dk1 board. In this board USB hub is connected to usb_dm1,usb_dp1 pins of controller. It is working fine Hub is detecting and ports are also detecting in user space.Here is my problem. We are using stm32mp157a processor in ...
Hi all ~I'm trying to control GPIO input in own application. and I refered to below wiki. https://wiki.st.com/stm32mpu/wiki/How_to_control_a_GPIO_in_userspacethis is my code. gint gpiochip_fd, ret; gchar gpiochip_path[20]; struct gpioevent_request i...
Hi team,I'm developing a PCB that implements STM32MP151AAA3.I think VBAT is a backup power supply for RTC, so I'm planning to supply power to VBAT from a button battery.Will the RTC be reset when this button battery is changed?If it is so, is there a...
While setting up my STM32MP157F-DK2 discovery kit, I followed the steps through the Populate the SDCard section and the flashing process failed with the following message when attempting to flash with the FlashLayout_sdcard_stm32mp157f-dk2-optee.tsv ...
Hi, Last couple of weeks I am trying to debug a rendering issue between eglfs and what I believe to be a VSYNC/Tearing issue. For testing I am using a bootlin demo build-root image with elgfs support. The image has Qt5.15, EGLFS and EGL support (more...
bord: STM32MP157-EV1I want the LCD to display messages received by UART communication.However, when I run GTK with the command below, I get an error because I can't access the device file.su -l weston -c "/usr/local/xxxx"What should I do?
