STM32 MPUs Products and hardware related

Good afternoon! I'm trying to use TSC2046 based touchscreen device on a STM32MP157C-DK2 based custom board. I get SPI transfer time-out when touching the screen. Does anyone have a similar problem ?

I'm using spi5 and my device tree settings are &spi5 { pinctrl-names = "default", "sleep"; pinctrl-0 = <&spi5_pins_a>; pinctrl-1 = <&spi5_sleep_pins_a>;    #address-cells = <1>;    #size-cells = <0>; num-cs = <1>; is-decoded-cs = <0>; cs-gpios = <&gp...

Level of Support for custom Operating System?

Hello,I'm writing to inquire if there is documentation/support for developing non-linux operating systems using the STM32 MPU discovery kits. So far I've only found Cube support and documentation for ST's custom linux distro. Obviously, a processor b...

The RGMII specification specifies a rise time of 0.75ns max. Looking at the STM32MP151A datasheet I can't select a speed setting to match this specification, they are all to slow. In the AN5031 a "High speed" selection is recommended. Do I miss something?

How to enable PWR_USB_SW in STPMIC?

Hello,I am working on a custom board based on stm32mp157 and I have the need to enable the PWR_USB_SW through the ST PMIC. So far, I identified the bit VBUSOTG_ON in register BST_SW_CR (0x40) but I had no success in configuring it via devicetree or v...

when i use STMCubeMX(version6.8.0) to generate the code about STM32MP157DAA1,i find whether i define the GPIO's user label,it just can't generate in the keil project.

i also find some people say this is a bug,repeatedly click the setting of user label can be solved,but i try it's can‘t figure it out.....By the way,GPT also not give the correct solution (this is why i am here)​this is my first question in this com...

OpenAMP_TTY_echo_wakeup can't manage to wakeup M4

Hi there, I'm developing on a STM32MP157 custom board. I'm trying to work with power modes, and I tried to import the OpenAMP_TTY_echo_wakeup example inside our M4 firmware. I already had the IPCC module set up and I use virtUart periperal without an...

How to make TFA redundant and how to make ROM code select different partitions of FSBL?

In stm32mp157, I need two partitions for FSBL, and it is working correctly, but I want to make TFA redundant meaning I should be able to update the second partition of FSBL and then shift it on the second partition on restart.I have made roofs redund...