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Forum Posts
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...
Understanding the functions of Remoteproc
Hi,iam a bit confused aboute the remoteproc framework and if my understanding of it is correct.In my view, the remoteproc framework can start the m3 firmware with having its elf-file in a dedicated place of the filesystem. The remoteproc also parses ...
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...
DMA from SRAM to SRAM hanging in the M4 core
Hi everybody,I have generated an STM32 project via the STM32CubeIDE and modified the large example buffer (the firmware logic analyzer part), trying to substitute to the timer generated DMA transfer a second stream from SRAM to SRAM.In the next futu...
Resolved! Error flashing weston example to SD Card STM32MP157C EV1
Hello ST Community,I am starting to work with the STM32MP157C-EV1 board and working through the example https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157x-EV1/Let%27s_start/Populate_the_target_and_boot_the_image.While flash...
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...
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....
Unable to build logic analyzer example
I'm trying to build the large buffer exchange example but have been unsuccessful so far. I have the distribution installed and have no problem building the default package but when I try to build with the logic analyzer I get repo failures and compi...
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