Is it possible debug with STM32 Discovery board without any external debugger llke st link?

nBala.1 · ‎2020-04-22

Tesla DeLorean · ‎2020-04-22

Sure, use a USART to output diagnostics and telemetry, and get better at doing static analysis, so you don't need to single-step your own code to know how it functions..

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PatrickF · ‎2020-04-22

Note that all STM32 Discovery, Nucleo and Eval board provided by ST come with embedded ST-Link (you need to use a tool such as free CubeIDE to debug).

I agree that UART is in fact a very efficient way to debug (cheap debuggers/probes are relatively recent and there was generations of engineers using UART, GPIO and LED to debug their products).

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