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串口发送数据源码(vc6)

于 2022-03-23 发布 文件大小:25.15 kB
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代码说明:

串行端口是系统资源的一部分,其本质是作为CPU和串行设备间的编码转换器。当数据从 CPU经过串行端口发送出去时,字节数据转换为串行的位(Bit); 接收数据时,串行的位被转换为字节数据。应用程序要使用串口进行通信,必须在使用之前向操作系统提出资源申请要求(即打开串口),通信完成后再释放资源(即关闭串口)

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