基于GoAhead与JTAG的FPGA/CPLD/PROM远程配置方法

FPGA/CPLD/PROM Remote Update Method Based on GoAhead and JTAG

提出了一种基于GoAhead嵌入式web服务器和JTAG总线的FPGA/CPLD/PROM器件远程配置方法。设计使用GoAhead嵌入式服务器接收来自以太网的XSVF文件,再由CPU解析并通过JTAG协议对FPGA/CPLD/PROM进行配置文件更新,技术人员可以通过局域网中的任意PC机对目标设备进行远程操作,避免了繁琐而不安全的设备开箱。本方法占用系统硬件资源极少,效果稳定可靠,可作为各类通信设备中FPGA/CPLD/PROM器件的ISP方案,也可方便的用在旧设备的升级改造中。

In the paper,a method based on GoAhead embedded web server and JTAG bus is proposed.The design uses GoAhead embed- ded web server to receive XSVF files from Ethernet, then the CPU parsing them and makes a FPGA/CPLD/PROM update through the JTAG protocol.The engineers can carry on the remote operation to the target device through the PC in the local area network, it avoids the cumbersome and unsafe operation to open the equipment box.The method takes up little hardware resources of the system,and it is stable and reliable, and can be used as the ISP scheme of FPGA/CPLD/PROM devices in various communication devices, and can be con venientIy used in the upgrading of the old equipment.