Keep_alive() was not invoked in the 1000 ms timelimit. Haven't made progress in mpsse_flush()

PlatformIO IDE
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mpsse_flush
mpsse_flush1444×794 61.8 KB

DEBUG CONSOLE output this warn message:

Warn : Haven't made progress in mpsse_flush() for 4012ms.
Warn : keep_alive() was not invoked in the 1000 ms timelimit. GDB alive packet not sent! (1025 ms). Workaround: increase "set remotetimeout" in GDB

how to avoid this? where to put the command “set remotetimeout ***”?

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Does the delay make the board go into a low power sleep mode?

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No, board in normal running state.

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There are multiple versions of this question but no clear answers. Why is this? Surely someone know how to do it?