基于USB總線技術(shù)的ATS信號調(diào)理平臺硬件設(shè)計

針對開放式通用ATS 信號調(diào)理平臺進(jìn)行研究，提出了基于USB 總線技術(shù)的信號調(diào)理平臺設(shè)計方案。本系統(tǒng)采用Cypress 公司推出的EZ-USB 單片機(jī)中的AN2131QC 芯片作為接口控制芯片，EZ-USB 的軟配置特性可以實(shí)現(xiàn)系統(tǒng)硬件的通用化，針對不同的被測對象編制不同的固件程序，當(dāng)被測對象發(fā)生變化時，可以通過加載不同的固件來滿足測試要求。針對復(fù)雜的信息控制與數(shù)據(jù)交換，采用了ALTERA 公司推出的EPM7128SLC84 芯片作為核心控制部分。系統(tǒng)具有可靠性高，可
測試性好等優(yōu)點(diǎn)。
Design of Signal-Conditioning Platform for ATS Based on USB bus Technology
LIU Jing-wei1 CAO Yuan1 ZHENG Quan-di1 LIAN Guang-yao2 (1、Missile Institute of Air Force Engineering University, Sanyuan 713800, China 2、Department of Missile Engineering, Ordnance Engineering College, Shijiazhuang, 050003, China ) Abstract: A scheme of signal conditioning platform based on USB bus technology is put forward in the paper after studying the open general-purpose signal-conditioning platform for ATS. The system adopts AN2131QC chip that is produced by Cypress Company. The soft-configuration characteristic of EZ-USB can realize the general purpose of the system hardware. We can work out different firmware program for different measurand, and load different firmware program when the measurand changed. For realizing complex information control and data interchange, we adopt EMP7128SLC84 chip that is produced by ALTERA as the key control portion of the whole system. The reliability and testability of the system are very high.
Key words: signal conditioning; EZUSB; CPLD