[SOLVED] RTT - What's the purpose of the 3 Up buffers?

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  • [SOLVED] RTT - What's the purpose of the 3 Up buffers?

    Hi,

    I'm trying to better understand the RTT architecture and I can't find the information on the wiki.
    It seems RTT is configured to have 3 aUp buffers and 3 aDown buffers. What is the purpose of those 3 buffers?


    I would like my CLI application on terminal 0 (in and out), and my logging to terminal 1 (out).
    What settings configuration would you recommend to achieve those requirements?



    Thanks

    Regards,
    Gabriel
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  • Hi,

    wiki.segger.com/RTT
    wiki.segger.com/J-Link_RTT_Viewer#The_Terminal_Tabs

    1 buffer on target side per “channel”.
    n terminals may share 1 buffer.
    Terminals are a memory saving way of having multiple tasks doing output that should be visually distinuishable.
    Pro: Only requires 1 buffer on the target side
    Con: Requires locking to make sure tasks do not access buffer concurrently
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