使用DS89C450对Xilinx PROM的在系统编程设计  

Xilinx Platform Flash PROM In-System Programming Using DS89C450

作　　者：郭文龙[1] 张小勇[1] 张骞[1] 

机构地区：[1]中国电子科技集团公司第三十四研究所,桂林541004

出　　处：《单片机与嵌入式系统应用》2011年第6期17-19,共3页Microcontrollers & Embedded Systems

摘　　要：使用DS89C450型单片机的I/O口实现JTAG通信协议,再用部分I/O口构造片选逻辑,来对一个系统中多片Xilinx Platform Flash PROM进行在系统编程(ISP),以此来更新对应的FPGA的配置数据。同时,DS89C450通过在应用编程(IAP)来更新用户代码。将硬件电路设计在背板上,实现插板式机箱结构,方便系统升级。A method for programming several Platform Flash PROMs in a system is presented, that is to erase, program and verify the Platform Flash PROMs using DS89C450 I/O ports and the chip-select logic circuit created by other I/O ports. The user code located in the DS89C450 can also be updated by the IAP application simultaneously. Hardware circuit is designed on backplane, facilitating system updating.

关 键 词：DS89C450 JTAG IAP XILINX PLATFORM Flash PROM 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]