[SOLVED] Using probe by two processes

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  • [SOLVED] Using probe by two processes

    Hi,

    I have two processes on my PC that need to read data from RTT- one of them from channel 0 and the other one from channel 1.
    While one of the processes is running, I get an error when trying to run the other process, at the point where it tries to open (list_all()[0].open()) the same prob.
    Is there a way to make two PC process share one rtt probe?

    Thanks!

  • I suppose you talk about a debug probe attached via USB.
    You would need to look at the USB driver API (on the host PC side).
    Perhaps it allows you to open a device with a SHARED property / flag.

    We had a similiar issue in relation to CAN adapters and their USB drivers.

  • Hello,

    Thank you for your inquiry.
    Two different processes can't fetch RTT data in parallel. See here for more details.
    wiki.segger.com/RTT#Troubleshooting

    But what you can do is write your own variant of the RTT Viewer where you fetch both channels in the same app with the J-Link SDK:
    segger.com/products/debug-prob…nk/technology/j-link-sdk/

    Best regards,
    Nino
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