文件名称:VM_IO
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STC89C51RD单片机普通模拟IO串口-Generic software uart written in C, requiring a timer set to 3 times
the baud rate, and two software read/write pins for the receive and
transmit functions
the baud rate, and two software read/write pins for the receive and
transmit functions
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用IO口模拟出一个串口(51C程序).txt