A Configuration Method of FPGA Interconnect Resources Testing
WANG Xiangfen
GAO Cheng
HUANG Jiaoying
FU Chengcheng
Abstract：FPGA is widely used in military and aerospace field and FPGA testing is the most effective means to ensure the reliability of them .Interconnect resources testing is one of the most important parts of FPGA testing since that most of the faults occur on interconnect resources .FPGA needs to be configured as specified circuits before being tested and conven‐tional .To the problem that HDL‐based configuration can not achieve controllability of the resources to be tested ,a XDL‐based configuration is proposed .The structure of interconnect resources of Xilinx Spartan‐3 FPGA and their description u‐sing XDL are studied .According to the structure of the interconnect resources ,a BIST structure is built to implement the test of them .Through C + + programming ,XDL programs are obtained automatically .With four configurations ,the testing of hex lines across CLBs and not across CLBs as well as double line across CLBs and not across CLBs are implemented .The method could solve the problem of uncontrollability of the resources to be tested efficiently .
Keywords：FPGAinterconnect pesources testingXDLBISTbased configuration
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 59-64 )