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Connecting and debuging STM32MP157F with M4 core

Bennny
Visitor

Hi.

I'm trying to develop some SW on the M4 core of STM32MP157FAD1 on custom board with custom Linux.
After 2 days of fighting I'm finally able to run the tty echo example on it.

But I still struggle with connection to the board.

  1. Why CubeIDE Debugger requires Serial port?
    We have the SSH accessible through the USB ETH over IP, that should be enough.
  2. The Debugger resolve wrongly IP of the board:
    We have pppd interface in the Linux. The debugger wrongly detects it's IP as the debugger IP.
    It results with this error:
    Bennny_0-1755093460860.png
    I'm also getting this error in console, it looks like the script/commands are interpreted wrongly:
    Bennny_3-1755093756718.png
  3. I'm still not able to get the ST-Link to work. It always ends with this error:
    Bennny_2-1755093680468.png

     

Thank you

P.S.

For others who also struggle to get it to work, check your device tree, CubeMX doesn't generate proper mbox m4_rproc. Add to end of the dts to the user section this:

&m4_rproc {
	mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>, <&ipcc 3>;
	mbox-names = "vq0", "vq1", "shutdown", "detach";
};

 To have the trace0 interface, you must add define for build preprocessor __LOG_TRACE_IO_

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