The NI-Digital Pattern Driver 18.0.1 patch resolves the issue outlined in the table below for the NI-Digital Pattern driver 18.0. NI highly recommends this patch for all NI-Digital 18.0 installations and Digital Pattern Instruments.
The patch is available through NI Update Service or you can download directly through the Drivers and Updates page linked below.
Frequency counter measurements will incorrectly return data in ascending channel order regardless of the channel list or the pin list. If the provided channel list or pin list input to the frequency measure function is not in ascending channel order, then the application will get incorrect results.
Capture memory streaming may return incorrect samples when fetching more than a million samples per pattern burst.