Library 46- Debug STM32F4 device with SWO feature
All Cortex-M4 devices have feature to output different data for debugging. This can be used instead of one USART available in STM32F4 to display data to user when something is going wrong and you want use debug. STM32F4 has SWD (Serial Wire Debug) option for programming/debugging. All STM32 boards, which have ST-Link on board, uses this option. For programming, only clock and data lines are required. Full SWD also enables you to output something from MCU which debugging. This is...
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