404 Appendix A Command Reference
Class Format editor control
Description Scales the horizontal timing parameters of the format currently in the edit buffer. The
parameters are scaled to produce the given pixel rate while keeping the horizontal scan
rate as close as possible to its original value. The following parameters are scaled:
horizontal total pixels, horizontal active pixels, horizontal sync delay in pixels, and
horizontal sync pulse width in pixels. The parameters are scaled so that their periods, in
microseconds, are as close as possible to their original values.
Command syntax JRAT pixel_rate
pixel_rate
floating point number equal to the desired pixel in MHz
Other required
commands The ALLU command updates hardware to the new settings and redraws the test image.
Example
JRAT 202.000E6 // Adjust timing to a 202.000 MHz clock
FMTU // Update hardware to current buffer contents