基于CY7C68013A的FPGA配置和通信接口设计

摘要

In order to realize that the computer can configurate FPGA online and high speed data transmission, this paper puts forward an USB2.0 interface design method based on CY7C68013A chip. The paper introduces the system hardware circuit design and software programming, and detailed analysis of the CY7C68013A's firmware program design method. At the time of configurating FPGA,the CY7C68013A chip is controlled by the internal CPU and the configuration speed is 6 Mb/s; whereas during date transmission, in order to improve the transmission speed, the CY7C68013A is configured slave FIFO mode. This scheme can be widely applied to the software radio project development.%为了同时实现计算机对FPGA进行在线配置和高速数据传输,提出了一种基于CY7C68013A芯片的USB2.0接口设计方案.介绍了以CY7C68013A芯片为核心的系统硬件电路设计和软件编程,详细分析了CY7C68013A固件程序设计方法.CY7C68013A芯片在配置FPGA时受芯片内部CPU控制,配置速度为6 Mb/s,而在数据传输时采用从属FIFO模式以实现高速数据通信.该方案可以广泛应用到软件无线电项目开发中.