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SVF (Serial Vector Format )is an universal description format of test vectors in boundary scan test. By using the SVF parser to obtain the TCK,TMS,TDI and expected TDO values and generate the JTAG test signals which can directly connect with the under test system to control the scan test process. To convenient for the search and parameters information sharing, the test information is sorted stored in embedded open-source database SQLite. Finally, CY7C68013 is used as the universal parallel port to verify the test signal generated by SVF parser. Test results demonstrate that the SVF parser can correctly compile SVF files and generate JTAG test signals.