基于PXI总线的高速数字I/O卡的设计

Design of high-speed digital I/O card base on PXI bus

依据PXI总线规范,应用PCI9054总线控制器实现PXI总线接口,通过FPGA控制PCI9054总线控制器局部总线和FIFO的读写端口来实现高速数字输入输出。测试结果表明,该板卡能够稳定地传输不低16MHz的高速数字信号。

According to the PXI bus specification,the PXI bus interface is designed and realized by using the bus controller PCI9054. The high-speed digital input and output is achieved by controlling PCI9054＇s local bus and FIFO read and write ports through FPGA.It has been proved by test that the card can transmit high-speed digital signals at the speed more than 16MHz.