STM32是以Cortex-M3为核的处理器，该例程介绍STM32下如何对GPIO进行操作。GPIO在嵌入式领域可以说是必需要掌握的。-Cortex-M3 based STM32-core processor for the routine introduction STM32 how to operate on the GPIO. In the embedded area of GPIO can be said that the need for control.
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