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FastScan and FlexTest Reference Manual, V8.6_4
4-24
FlexTest Test Pattern File Format Test Pattern File Formats
The waveform shape of each input pin is defined by the Add Pin Constraints
command. If the waveform type for a input pin is specified as C0, C1, CX, CZ,
RO, or R1, then it is optional to list that input pin and type.
To create a table format for non-scan test patterns that were generated in the
ASCII format, we do the following:
Here is the ASCII test patterns for a non-scan circuit, with a test cycle width set to
2, and a primary input CLOCK constrained to R0 with period 1, offset 0, and
width 1:
SETUP =
TEST_CYCLE_WIDTH = 2;
DECLARE INPUT BUS “ibus” = “/clock”, “/G3”, “/G2”, “/G1”,
“/G0”;
DECLARE OUTPUTBUS “obus_1” = “/G17”;
END;
CYCLE_TEST =
CYCLE = 0;
FORCE “ibus” “10111” 0;
FORCE “ibus” “00111” 1;
MEASURE “obus_1” “1” 2;
CYCLE = 1;
FORCE “ibus” “10010” 0;
FORCE “ibus” “00010” 1;
MEASURE “obus_1” “1” 2;
CYCLE = 2;
FORCE “ibus” “10010” 0;
FORCE “ibus” “00010” 1;
MEASURE “obus_1” “1” 2;
CYCLE = 3;
FORCE “ibus” “11001” 0;
FORCE “ibus” “01001” 1;
MEASURE “obus_1” “1” 2;
....
END;
To create the control section, all the primary inputs and outputs should be listed in
the same order as the ASCII patterns as follows: