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Create a 32b parallel bus

Hello, I am working on the stm32mp157-dk1. I would like to create a 32bits parallel bus on cortex A7, at a frequency greater than 20Mhz but when I do a test on a pin I get a max frequency of 120khz, which is too low. I think this is the wrong program...

FJouf.1 by • Associate II
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STM32MP157A-DK1 UART3 kernel module

Hy wanted to make a kernel Module and i wanted to know whats the best way to acces the uart from Kernel Space.So far i enabled the UART in the device try and now i am able to send data. But now i know since the uart us in userspace i cant access it f...

SAman.1 by • Associate III
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Resolved! STM32MP1 ethernet error message

I have a question about the Starter Package.When I start STM32MP157x-EV1 (+en.FLASH-stm32mp1-openstlinux-5-4-dunfell-mp1-20-11-12), I get the following logroot@stm32mp1:~# dmesg | grep ether[   1.642061] stm32-dwmac 5800a000.ethernet: PTP uses main c...

rmaki.1 by • Associate II
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Linux running on A7 corrupted when FreeRTOS with virtual uart application running on CM4 freeze. How to fix this in Linux 5.4.31?

We have an virtual uart FreeRTOS application running on CM4, it captures SPI data and sends to A7 through virtual uart. Sometimes, the FreeRTOS application freezed, A7 can not read the data through /dev/ttyRPMSG0 again, at the same thime, Linux 5.4....

SunnyGeGe by • Associate III
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