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波特率匹配问题已成为许多设备和微机之间实现快速数据交换的瓶颈。文章详细阐述了单片机和计算机之间通过并行口通讯的原理及方法 ,在所采用的二线制协议中提出了位间隔概念。该方法在便携式设备对微机的大数据量传输应用中有着十分显著的优点。
Baud rate matching has become the bottleneck for many devices and computers to achieve fast data exchange. The paper elaborates the principle and method of communication between MCU and computer through parallel port, and puts forward the concept of bit interval in the adopted two-wire protocol. This method has very significant advantages in the application of portable devices to large data transmission of computers.