STM32 MPUs Products

[RPmsg] rpmsg-tty-channel.-1.1024: Trunc buffer from x to y

Hello,I want to send in reliable way messages from M4 core to A7 core (in my case its the HW is STM32MP157 -DK2 ). The problem is that when A7 core is busy, the messages are truncated.The quesiton is how M4 core would know that A7's buffers are full?...

Error: Illegal access to ... when flashing custom board with own configuration/device tree

Hello,I want to upgrade my hardware to new openstlinux kirkstone release november 2022.First test on eval board was successful.I have written custom device tree files and compiling for tf-a, u-boot, fip and kernel is fine.However when I try to flash ...

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...