Pattern Generator

UltraFlex API

This page will be used to document any UltraFLEX-only APIs related to pattern generation, however the goal is to have as few of these as possible so that Origen pattern source code can re-target automatically to any supported platform.

There are no significant APIs in this category currently, therefore refer to the Common Pattern API which can fully target the UltraFLEX.

UltraFlex supports :digsrc as a tester.overlay_style set like this:

  tester.overlay_style = :digsrc

By default Origen will automatically place the digsrc start opcode at the beginning of the resulting pattern when :digsrc overlay is used. In some cases (like when the pattern is used in a pattern set that has already started the instrument in a previous pattern, or possibly in svm_patterns) this behavior is undesirable.

The insertion of this start opcode can be disabled by placing the following code before any overlay operations for a given pin.

  tester.digsrc_skip_start :pin_or_group_name if tester.ultraflex?
  # Overlay operations can happen after this point

The default digital instrument used is hsdm. This can be changed with either a create option or through an accessor:

  # Instantiate with a different digital instrument
  OrigenTesters::UltraFLEX.new(digital_instrument: 'hsdmq')
  
  # set the digital instrument after instantiation
  tester.digital_instrument = 'hsdmq'