Ask questions and find answers on STM32 microprocessors and dedicated embedded software solutions, such as Yocto SDK, Qt, and OP-TEE.
Hello,I'm working with a STM32MP257D, which is using the I2C-driver "i2c-stm32f7.c" in the Linux kernel (compatible: st,stm32mp25-i2c). I'm using kernel version v6.6.78. I need to use I2C mangling, specifically I2C_M_NOSTART and I2C_M_STOP, to handle...
Dear experts, why, under the same configuration for heterogeneous core communication, in the generated code, the debug section of the routine's initialization functions of IPPC and OPENAMP can be accessed, but the ones generated by ourselves cannot?T...
Hi,I’m working on STM32MP257F-DK (A35 + M33) using OpenAMP + RPMsg over IPCC and facing an issue with RPMsg endpoint creation on the M33 side.GoalSimple use case:Linux (A35) sends "START" / "STOP"M33 receives the message via RPMsgM33 toggles an LEDWh...
Hello everybody,For my project, I need to display (LVDS output) an HMI that contains external video streams.I plan to use LTDC layers in order to perform plane composition with the hardware block (for example, HMI on plane 1, RTP video on plane 2, an...
Dear community, I've used yocto as my workhorse in the past a lot for other processor manufacturers. Now as I'm happily joining the STM world for linux I'm stuck. Maybe it is a too easy to miss question, but which steps I have to take for putting all...
I'm trying to add the linux "gpio-poweroff" function to the distribution package. I've added the following to my device tree:gpio-poweroff { compatible = "gpio-poweroff"; gpios = <&gpioe 1 GPIO_ACTIVE_HIGH>; timeout-ms = <3000>; };The kernel/devic...
I'm bringing up a very simple board that uses STM32MP135 with LAN8742A-CZ-TR Ethernet PHY as on the eval board. Unlike the eval board, however, I clock the PHY directly from the SoC: PA11/ETH1_CLK from the STM32 is connected to XTAL1/CLKIN on the PHY...
Hi,I have few custom boards with STM32MP257 mostly running PTP related tasks. Once in a while (once in a few days of continuous run) I have noticed the following error in the dmesg (as it seems UART related - I have 4 UARTs enabled in the DT, while 3...
Hi im working on stm32mp257f-ev1 and the "edt,etml0700z9ndha" display,Im unable to decode the logic why the back-light enable gpio only gets high when there is a display connected in the lvds port, what logic is used to detect the lvds display connec...
Hi Team,I am using the following method to enable password protection for both SSH and serial login.I added the below configuration in local.conf:INHERIT += "extrausers" EXTRA_USERS_PARAMS += "\ usermod -U root; \ usermod -p '\$6\$ao/KaHyZbsg...
