航空发动机电子控制器可测试性技术应用研究

基于边界扫描的测试思想,提出了1种航空发动机电子控制器可测试性设计方案。通过器件管脚的边界扫描单元,在板级甚至多个目标板组成的复杂系统间,构建了1条在集成电路边界绕行的移位寄存器链,可以实现复杂集成电路的嵌入式测试。该方案还可以实现故障注入,对航空发动机电子控制器机内自测试(B IT)能力进行验证。

Application Study of Testability Technology for Aeroengine Electronic Controller

Based on the test idea of boundary scan,a testability design concept of the aeroengine electronic controller was presented.The shift register link which rerouted the integrated circuit was established between complex systems formed by the board level or multiple target boards to achieve embedded test of complex integrated circuit by boundary scan cells of chips.This concept can also achieve the fault injection,and the built in test(BIT) of aeroengine electronic controller is demonstrated by the concept.