STM32 MPUs Embedded software and solutions

Where is updated stLinux User Manual ? UM1535,UM1538 very old, not for STM32MP157? Because want information how to access TIM12_CH1 is doing pwm okay test in sysfs, but want to use it for a timer interrupt handler in application, example code please.

Using a U-Boot binary after building using the STM32MP1 Android distribution does not work.

Have tried building U-Boot with a few changes compared to the default ones using the STM32MP1 Android distribution.When changing the ssbl-trusted-fbemmc.img which contains the U-Boot binaries, the U-Boot start fails showing the following boot logs:/T...

How to set build environment configurations to bitbake st-image-core.

Hi,I am trying to set build configurations for baseline build but getting below error while running envsetup.sh script."Error: TEMPLATECONF value points to nonexistent directory '../../layers/meta-st/meta-st-openstlinux/conf/template"but the above di...

STM32MP135: SAI missing clock error at boot time

I generated the device tree for the STM32MP135-DK to include the tlv320aic31xx audio codec connected to the sai1a port, but during the boot I get the following errors. [  90.094282] st,stm32-sai 4400a000.sai: missing x8k parent clock: -2[  90.155023]...

pins_a and pins_b and pins_c for i2c2 so what is the effect of configuring multiple sets of pins for i2c2? Are they sharing i2c2 bus ? Are they sharing the driver ? Is it always better to configure another bus eg. i2c5 instead of i2c2_pins_b ?

How to solve core data - abort at address tee load address error

An error appears when executing the crypto_skipher_decrypt(tfm)->decrypt(req) code inside the linux-custom directory of the buildroot. Some violation seems to occur when calling the decrypt(req) function. If I annotate that part, the error doesn't co...

spi Overrun: RX data lost when "spi_sync_transfer" too long in kernel

Hi,I would like to make my STM32MP157 communicate with a FPGA in spi. I need to make long transfer (2-3 Mb) spi to get data acquired by the FPGA. But when I use the "spi_sync_transfer" function in my driver, I get the following kernel message:#spi_st...