Delete a column of a Waveform

[HuguesThales]

Good afternoon,

I am trying to delete a column of a waveform.

I created the waveform using the "SDW 16-bit Register Swap.vi" example from the "SPI Digital Waveform Reference Library" which I downloaded here: http://www.ni.com/example/31163/en/

This SPI waveform contains 4 signals:

1. CS
2. MISO -> I want to delete this one from the waveform
3. MOSI
4. SCLK

Front Panel of SDW 16-bit Register Swap.viWaveform observed with probe

I tried to extract the Y attribute from the waveform, which I thought would be Array, and then use "Delete From Array Function" to delete the column. (https://zone.ni.com/reference/en-XX/help/371361N-01/glang/delete_from_array/)

(This would be similar to what is done here to delete a portion of a waveform: https://forums.ni.com/t5/Example-Programs/Delete-Portion-Of-Waveform/ta-p/3510593)

However, I can't connect the Y attribute output to the Array functions!

Y attribute cannot be connected to "Delete From Array Function"

None of the Waveform Library function seems to do the trick either. Would anyone have any idea?

Thanks a lot in advance for your help,

Hugues

[johntrich1971 · Accepted solution]

You can use the signal subset. Select the columns that you want to keep.

[HuguesThales]

Perfect, thanks John 🙂