FlexTest Test Pattern File Format

Test Pattern File Formats

 

 

Format Patterns” on page 4-29). Therefore the period,

data_sample_time, offset, and optional pulse_width must be scaled using the timescale. Otherwise the conversion from VCD format to FlexTest's cycle representation may be inaccurate.

For example, assume that the time scale = 10 ps but that simulation was performed using simulation data that used a 1 ns period. All literals for the time must be stated in terms of 10 ps. Thus, the period would be 100 since 100 * 10 ps equals 1 ns (or 1000 ps).

operiod defines the period of the timeplate.

odata_sample_time defines the time that VCD Reader uses to strobe the values of the pins in each cycle. This value determines when the VCD data stream is sampled during the conversion of VCD format to FlexTest's cycle format. It refers to the “data sampling” time for input and output values.

ooffset defines the offset of the pins.

opulse_width defines the pulse width for the pins with return timing waveform.

oThe smallest period defined in the add timeplate commands is used as the test cycle length.

oPeriods defined in add timeplate commands must be equal to multiples of the test cycle length.

odata_sample_time must be greater than or equal to the offset and less than or equal to (offset+pulse_width).

2.Setup Input Waveform timeplate_name

This command sets the default timeplate for all primary input pins.

3.Add Input Waveform timeplate_name pin_list

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FastScan and FlexTest Reference Manual, V8.6_4

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Image 734
Mentor v8.6_4 manual Format Patterns on page 4-29. Therefore the period, Add Input Waveform timeplatename pinlist