Functional testing technique for Microprocessor Interface board

A test procedure for testing the functionality of Interface Device DD-00429 between Microprocessor and Arinc 429 Data Bus is presented in this paper. This paper includes the test procedure for performing the synchronous write and read operation in Intel mode of the interface device. The driving voltage of 0.0v to4.0v is applied to input pins and sensing voltage from the output pins between 1v to 3v. The test is carried out using S790 Test System, Test Jig (DUT Adaptor) and 96 pin euro connector interfacing with Generic fixture of S790. The test program has been developed using CATE environment which includes the board description, component description, fixture description, and test plan. All the parameters implemented successfully.