Design And Implementation Of RF Transmission System Based On USB

This paper is concerned with the design process of RF transmission system based on USB,which designed by the receiving and dispatching chip nRF24L01, explains the design procedure, then provides the concrete realization scheme and carries on the test of the performance in designed system.The paper introduces the Front-end Transceiver, the protocol of USB bus in brief, and discusses the design of system, which includes hardware design, firmware design, device driver and application program. In hardware design segment, the features of nRF24L01 and CY7C68013A are described, the key points of the design which should be paid attention to are explained. Firmware design is the important project of the system. The paper presents the structure of the program, then introduces the firmware design and the flow chart of the firmware code in detail. The host dealing module displays and deals with the data through the visual, friendly programming interface.Final achievement of the system design is a device,which connects with PC through USB interface. The system is operated through the graphical user interface based on windows,which is convenient to operate.In the end, the paper make a conclusion of the project, and the foreground of USB application is explored .