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"The serial device 'MPU Serial (/dev/ttyUSB0)' is not available"

Mario Luzeiro
Senior

I'm on Linux debugging STM32MP1, latest version of everything installed. I used to be able to debug in "production mode" but now I got:

"The serial device 'MPU Serial (/dev/ttyUSB0)' is not available."

if I start debug

"The selected serial device 'MPU Serial (/dev/ttyUSB0)' is not available anymore, please update the Debug configuration."

However, I'm able to open the /dev/ttyUSB0 with other terminal softtware, the "/dev/ttyUSB0" appears as an option on debug options, also, the status on bottom right is green.

How to fix this?

12 REPLIES 12

Yes, I can confirm that none of precompiled images and locally built versions of Yocto Linux by Digi for MP1 Dev Kit the RemoteProc and rpmsg are not working because of missing parameters in device tree configuration.

I was able to fix that and remoteproc0 is now present in /sys/class/remoteproc/ folder.

That is not the reason, since I'm having exactly same problem and CubeIDE shows No ST-Link detected message to me when remoteproc0 is present and active.

it is no use to remove the *.cfg file,even changed the *.launch file,the configuration setting edit button disapper,just like a ui bug.

I found the final problem, the cubeide debug with production mode can not found the MPU Serial dual to the IDE filter default setting ,Not sure what the means by wasting how many people`s time on this issue. by only accept the stlink v3 device and FTDI chip. just need you remove the filter by active the select box in window->STMCUBE->MPU Serial.