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模拟单线程程序，同时可以学习进度条控件的详细使用方法-simulation thread procedures, and can learn from the progress of the detailed controls use

CAN总线协议的单线GPIO模拟（LPC1138，收发，包括软件CRC校验）-CAN bus protocol of the single GPIO analog (LPC1138, send and receive, including software CRC checksum)