Mentor v8.6_4 manual Figure B-2. Detailed Pin Timing

FlexTest WDB Translation Support Using wdb2flex Effectively

4.For each clock pin, set up return pin constraints corresponding to the control file (SR0, SR1, R0, R1), with an offset value equal to the timeframe at which the clock goes active. The pulse width should correspond to the difference between the timeframe at which the clock goes inactive and the timeframe at which the clock goes active.

For the example in Figure B-2, you would enter the following to indicate that CLK has an offset of 0 and a width of 1.

add pin constraints clk sr0 1 0 1

5.For all output pins, specify the strobe timeframe corresponding to the strobe time in the control file. For the example in Figure B-2, you would enter the following:

setup pin strobes 1

0	50 70 90100		150	200	250
ENABLE
ABUS
CNTRL
CLK
OPA
	75	105		205
t1		t2		t3
	Frame 0		Frame 1	Frame 2

There are three input pins, ENABLE, ABUS, and CNTRL; one clock pin, CLK; and one output pin, OPA. Note that FlexTest strobes all waveforms 5 ns after the waveform changes state to ensure that it strobes the proper state.

Figure B-2. Detailed Pin Timing

FastScan and FlexTest Reference Manual, V8.6_4 B-9