FlexTest Test Pattern File Format

Test Pattern File Formats

 

 

oUnknown direction dump character ‘1’ will be used as an input ‘1’ on an input pin or a measure ‘1’ on an output pin.

oAll other unknown direction dump characters, ‘?’,’F’,’A’,’a’,’B’,’b’,’C’,’c’, and ‘f’, will be used as an input ‘Z’ on an input pin and a measure ‘X’ on an output pin.

An Example of Using VCD Reader

Following is an example of using VCD Reader from FlexTest:

Design netlist in Verilog

/*

*DESC: Generated by DFTAdvisor at Tue Mar 11 17:24:02 1997

*/

module test_vcd ( rb , in2 , cnt1 , clk , buf_in , out_ff , out1 , buf_out , ixo ); input rb , in2 , cnt1 , clk , buf_in ;

output out_ff , out1 , buf_out ; inout ixo ;

wire \N$10 ;

MZTH \I$1 (.IO ( ixo ), .OUT( out1 ) , .C ( cnt1 ) , .IN ( in2 ));

MD20E \I$2 (.NQ ( \N$10 ) , .Q ( out_ff ) , .CK ( clk ) , .D ( \N$10 ) , .R( rb )); MOPH \I$3 (.OUT ( buf_out ) , .IN ( buf_in ));

endmodule

Verilog Test Bench which generates LSI extension of VCD file in Verilog- XL:

//

// Verilog format test patterns produced by FlexTest v8.5_5.6

// Filename

: PAT/pat1_verilog

// Timefile

: DEFAULT

// Scan operation : PARALLEL

// Fault

: STUCK

// Coverage

: 77.27(TC) 73.91(FC)

// Date

: Fri Jun 6 15:01:50 1997

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FastScan and FlexTest Reference Manual, V8.6_4

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Mentor v8.6_4 manual An Example of Using VCD Reader