Plataforma para testes de circuitos digitais.

Abstract

With the advance of technology for integrated circuits production, it is necessary a greater effort to design and verify these circuits. The test of integrated circuits involves several steps and its goal is to identify and isolate faulty devices. When a new integrated circuit is designed, and before it is sent to production, the first step is to verify that the project is correct. With the growth of microelectronics in the country, certainly it will be needed to create new efficient testing devices and preferably with affordable cost to small sized companies. This research aims at creating an environment of low cost tests using a programming language, which allows testing in digital circuits. This paper describes a platform for testing integrated circuits by using structural testing. This analysis is done in combinational circuits of ISCAS85 benchmark (HANSEN et al. 1999) for failures of type stuck-at. The testing platform was developed with low cost components, giving the platform a large differential. Moreover, the environmental performed both tests, in software and hardware. For tests with hardware, the environment emulates the circuit in a FPGA with the aim to prove the simulated tests in in a real environment. Another important difference is the integration of the environments of simulation, allowing testing in software as well as in hardware.