• @Kolban, you should have a look here .

    It says

    For internal use, we at Espressif desired a GDB stub that works with FreeRTOS and is a bit more capable, so we designed our own implementation of it. This stub works both under FreeRTOS as well as the OS-less SDK and is able to catch exceptions and do backtraces on them, read and write memory, forward [os_]printf statements to gdb, single-step instructions and set hardware break- and watchpoints. It connects to the host machine (which runs gdb) using the standard serial connection that's also used for programming.

    Really interesting, isn't it?


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