Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Hello,With the new OpenSTLinux 5.1, I noticed that there is no longer any flickering between the splash-screens. I would like to know what the Yocto configurations are so I can use it for building an st-image-core, since there is still a delay. I add...
Hi,I want to boot my image from the user data area partition in the eMMC of my stm32mp257f-ev1 board by disabling the eMMC hardware partitions (the mmcblk1boot0/1) in U-Boot like this: mmc partconf 1 0 0 0 Unfortunately, the ROM code can't load my ...
I want to display the loop log at start up from UART to the HDMI. How can i achieve that?Is it something I need to change in the device tree for linux or something?My HDMI and UART works excellent. Now I want to connect them...or in other words, disp...
I would like to access a SPI Device (Ethercat Shield) over the Arduino Headers (SPI4). What do i have to do to get the /dev/spidev... device file in Linux ? Sorry, but i'm still confused what is enabled, what do i have to enable in DTS files and when...
I'm trying to boot from SD-card and u-boot doesn't seem to find device tree. I have built my system with buildroot (bootlin st/2023.02.2) overriding the sources for tf-a, u-boot, op-tee and kernel, to be able to boot at least to u-boot (I did write a...
PA13 and PA14 seems to support Coresight. Is there more information how this can be used and how to connect these pins ? currently I use PA13 to connect a LED, for PA14 there is less information.
Hi,I am successfully able to cross-compile a Qt application and run it on a STM32MP157F-DK2 using the various tutorials on this site.Problem is, I want to view the application using the internal LCD of the board (800*480), but the application is desi...
Hi, I am also using the DFR0550 screen: https://wiki.dfrobot.com/5%27%27TFT-Display_with_Touchscreen_SKU_DFR0550Unfortunately, I am not able to make it work for now, here is the status: The best resources I have found is the following: https://trac.g...
What is boot scheme lables. I am refering to link below it is given as " defines which kind of boot is supported on the board"What it means.referring to link below: https://wiki.st.com/stm32mpu/wiki/STM32_MPU_OpenSTLinux_release_note_-_v4.1.0#Bootsch...
Hi all,i'm writing a program to run on STM32MP135F-DK board that enable the USB host ports of the board.All the projects I've found are using the OTG port as host.All the HAL_HCD apis and xxx_ll_usb source use the OTG structures.Is there ant sample f...
