The firmware that is pre-loaded into the Blue Pill board reconfigures the SWD pins as generic I/O pins, hence we will not be able to debug the board via SWD unless we also connect the reset pin and enable the “Connect under reset” setting in the software. In order to debug the Blue Pill board via SWD, we would need to connect the following signals to an ST-Link programmer: We will show the necessary wiring to program the FLASH memory using the ST-Link programmer from a separate STM32 Nucleo board and will then proceed with debugging the Blue Pill board with SWD. ![]() This tutorial shows how to create a basic project for the STM32 Blue Pill board with Visual Studio and VisualGDB.
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