STM32 MPUs Products

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How to add pwm-backlight to timer block?

Similar question was asked here:https://community.st.com/s/question/0D50X0000AvgWuG/how-to-use-timers2-as-pwmbacklightBut this does not work on v5.4 kernel anymore. So a working example would be nice as pwm-backlight device tree handling is not docum...

HG.11 by Associate II
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  • 9 replies
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Resolved! question about STM32MP157C-DK2

Hi,My test kit is STM32MP157C-DK2 and kenerl version is 5.10.10.I tried to monitor falling edge event on PD.1, with command "gpiomon --falling-edge gpiochip3 1". It is faile and and the log in the attachment.Then I disable "hdmi-transmitter@39" in "s...

zqizh.1 by Associate II
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  • 2 replies
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Error Flashing first partition: Hello, I have a custom board with STM32mp157c and i'm trying to load the u-boot for ddr testing. I created u-boot basic defconfig with ddr_interactive=1 and

a tsv file with #Opt id Name Type IP Offset Binary - 0x01 fsbl Binary none 0x00000000 u-boot-spl.stm32 I got different error messages:stm32CubeProgrammer on windows:sending a dfu end of download request DFU status = 0 DFU State = 7 DFU status =...

Lmoio.1 by Senior
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  • 3 replies
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Resolved! Why the "/sys/class/gpio" can't work on STM32MP157C-DK2?

Hi,I test commands"echo 97 > /sys/class/gpio/exportecho out > /sys/class/gpio/gpio97/directionecho 1 > /sys/class/gpio/gpio97/valueecho 0 > /sys/class/gpio/gpio97/value", the value on the pin PD.1 can't change.Test command:" gpioset gpiochip3 1=1 gpi...

zqizh.1 by Associate II
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  • 1 replies
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OpenAMP_TTY_echo_wakeup examples don't work.

I'm trying to test the low power modes (I don't care about the current at this point). I start the Next I run this:cd /usr/local/Cube-M4-examples/STM32MP157C-DK2/Applications/OpenAMP/OpenAMP_TTY_echo_wakeup fw_cortex_m4.sh start echo enabled > /sys/d...

nlbutts by Associate II
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  • 1 replies
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STM32MP1 using FMC from CM4 core

We are using the STM32MP15 ecosystem 2.1.0 and buildroot build flow for a custom board.  The custom board uses the FMC peripheral to connect to three FPGAs using an SRAM/PSRAM interface.  We have successfully implemented this interface on the CA7 sid...

MCarl.3 by Associate II
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  • 3 replies
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Why MPU's ST support is so slowly...

Could you please explain me why ST support is so slowly... I'm starting with STM32MP1xx MPUs hoping, that ST support will be fast and specific. But currently answer for even simple (and stupid) questions need to be wait for unpredictable time...We ne...

ASkri.1 by Senior
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  • 3 replies
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