stm32 printf函数

回答: 在STM32中，printf函数的输出是通过重写fputc函数来实现的。在重写的fputc函数中，我们可以设置输出的地方，比如uart通信的输出寄存器、显示屏的显示寄存器、蓝牙或WiFi等。通过循环发送数据，直到发送完毕，将数据发送到相应的寄存器中。这样就可以实现printf函数在STM32中的输出功能。\[1\]\[3\]
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