基于PCI接口外系统等效器的设计

Design of Equivalent Equipment for External System based on PCI Interface 

摘要:

针对平台、速率陀螺与测量系统的接口应用,提出了基于PCI总线的外系统等效器设计；该系统以FPGA为中心控制器,其通过PCI接口与上位机进行通信,可以实时接收上位机发送的命令,并且能产生测量系统所需的各种测试信号;系统依靠FPGA的高程可控性以及VHDL语言的超强灵活性,可靠地完成4路28 V、17 kHz平台力矩电流以及2路+15 V、+5 V电压采集信号的产生与传输;通过与测量系统的连接测试,结果显示系统工作正常,各项功能指标均满足测试要求。

Abstract:

Aiming at the application of interface that between platform, velocity top and measurement system, a design of Equivalent Equipment for External System based on PCI interface is put forward. In the system, FPGA is the central controller and PCI interface is used to communicate between system and computer. Not only does the system receive the order from computer, but also produce all kinds of text signal which are required by measurement system. The design depended on the high program of FPGA and the powerful flexibility of VHDL language, achieves 4 platform torgue current which is 28V、17kHz and 2voltage acquisition of +15V、+5V. The result of connected text with measurement system shows that the system can work well and every function index meet test request. 