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知识科普:ESP32中IO_MUX和GPIO交换矩阵
当配置为GPIO功能时,IO_MUX将外设信号通过GPIO交换矩阵连接到GPIO pad上,以实现高频数字特性。 当配置为直连功能时,IO_MUX将外设信号直接连接到GPIO pad上,旁路GPIO交换矩阵,以实现更快的响应速度。 GPIO交换矩阵是外设输入和输出信号和pad之间的全交换矩阵。
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