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在VXI自动测试系统中,针对多种被测对象,测试系统通常需要适配器与之对应,且被测对象越多,所需适配器就越多。随着电子技术的发展,复杂电子设备的品种、数量、技术复杂程度都在不断增长,这种测试结构已经不适合复杂电子装备的现代测试系统。 ispLSI1032是Lattice公司生产的高密度在系统可编程逻辑器件,利用Lattice公司ispDesign EXPERT软件即可实现其电路功能的设计和下载,由于其内部逻辑由用户确定,并可实时修改,因此应用上有很大的灵活性。 采用ispLSI1032对VXI总线自动测试系统的测试接口进行控制,并通过测试信号的动态分配、动态上拉和动态预处理等方法,可大大简化系统结构和电路设计,提高系统的可靠性,有效地解决测试平台对多种复杂被测对象的适配问题。
In the VXI automatic test system, the test system usually needs an adapter for a plurality of tested objects, and the more objects to be measured, the more adapters are needed. With the development of electronic technology, the variety, quantity and technical complexity of complex electronic devices are constantly increasing. Such a test structure is not suitable for modern test systems of complex electronic equipment. ispLSI1032 is a high-density in-system programmable logic device manufactured by Lattice. The design and downloading of the circuit functions can be realized by using the ispDesign EXPERT software from Lattice. The internal logic of the ispLSI1032 is determined by the user and can be modified in real time. Great flexibility. The ispLSI1032 is used to control the test interface of the VXI bus automatic test system. By dynamically assigning the test signal, dynamic pull-up and dynamic preprocessing, the system structure and circuit design can be greatly simplified, the reliability of the system can be effectively solved Test platform for a variety of complex objects to be tested fit.