Testing Algorithm of PCB Tester Based on FPGA and Its Implementation

The core of PCB(printed circuit board) tester is testing algorithm,which directly determines the testing functions and speed of PCB tester.The algorithm based on field programmable gate array(FPGA) not only simplifies the design of circuit board,but also improves the testing speed and reconfiguration ability of system.This paper studied implements of major testing algorithm based on FPGA,gave both the state transition's diagram and the simulation timing diagram with EDA design tools.The experiment results have been demonstrated this method is available and effective.