為了提高單片機與計算機之間的數據傳輸速度，設計了基于CH372芯片的USB通信技術來實現單片機與計算機之間的數據通信。采用CH372芯片與單片機AT89C52配合的方法設計了單片機端的硬件電路，開發了CH372芯片基于匯編語言平臺的單片機端的數據收發程序和基于Visual Basic語言平臺的計算機端的命令、數據收發程序。試驗結果表明，該系統設計能夠很好地實現單片機與計算機之間的數據傳輸。

Abstract:

?In order to improve the data transmitting speed between computer and singlechip, the paper designed a USB communication technique to achieve data transwitting between computer and singlechip by using CH372 chip. CH372 chip and AT89C52 singlechip were adopt in the design of the singlechips hardware. The data sending and receiving procedure of single chip based on assemble language, and the command and data sending and receiving procedure of computer based on Visual Basic language were explored independently. Finally, the result of the experiment proves that the design in the paper can carry out the data communication between the computer and singnlechip