Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
We are using a STM32MP157 chip on a custom low-power design and don't need the Cortex M4 core. We would like to disable it properly to reduce power consumption and also remove dedicated support in linux kernel.Is there any recommended way to do this ...
After DDR3 (16 bit) training complete, registers are:DX0DQSTR=0x3DB03001, DX1DQSTR=0x3DB03001Should I redesign CPU board or these values are suitable?
HI ,How can i install mongodb , mariadb and postgresql on stm32mp1?Is there support for databases provided for stm32mp1?
We are seeing some strange behavior on our stm32mp157 system exiting suspend mode.This is not a 'weston' build, so we enter (deep) suspend mode by executing "echo mem > /sys/power/state" and the system powers down and enters low power.root@stm32mp157...
Hi all,I am trying to bring a LVDS display up. Display: BOE EV121WXM-N10-1850. Datasheet: LinkDriving MPU : STM32MP1. I am using VisionSoM STM32MP1 based evaluation Kit. LinkThe firmware changes required to make the device up are part of git: LinkI h...
Hello all,I'm getting following error on our custom board while initializing sdmmc3 as wifi module with SDIO:~# dmesg | grep -i sdio -B 1 [ 3.410271] mmci-pl18x 48004000.sdmmc: no support for card's volts [ 3.415001] mmc0: error -22 whilst init...
In our project we are currently trying to decrease boot time and energy consumption of an embedded linux running on an STM32MP153.To improve energy consumption we are trying to activate hibernation, in order to test suspend-to-disk as well as the hyb...
Can anybody say meaning of four values in ACSR field of DDRPHYC_ACIOCR register?May ill ddr3-equipped board work more stable (i think) if I add no-zero values here...
Hi,I'm interested how to change CPU frequency from 650MHz to lower frequency. I looked those two links:https://wiki.st.com/stm32mpu/wiki/How_to_change_the_CPU_frequencyhttps://wiki.st.com/stm32mpu/wiki/Clock_device_tree_configuration_-_Bootloader_spe...
We follow this: https://wiki.st.com/stm32mpu/wiki/How_to_exchange_large_data_buffers_with_the_coprocessor_-_principle and this: https://wiki.st.com/stm32mpu/wiki/How_to_exchange_large_data_buffers_with_the_coprocessor_-_example#Linux_driversarticles...
