So I set the Trigger to Advanced and configure the source signals to what is needed (SS, MOSI, SCLK) and set the threshold levels to about 50% of the swing.
I want to view a specific write instruction (1 0000 1100 0000 000x) so I set it to trigger on MOSI and set the correct serial pattern in the editor. But, no matter what I do I can't make the scope trigger on this sequence.
A work-around is to shorten the serial value to 8 bits. Then, the scope triggers but because this shorter value is not unique within the larger data set, I get several unwanted triggers instead and I can't analyze what I need.
When I trigger on the 8-bit value and I get lucky, the scope triggers on the correct even. So I know there is an occurrence of this pattern in the event, but it seems like the scope cannot trigger on anything larger than an 8-bit word.
I was wondering if this is more common (I don't see this is a known limitation of the scope), or if there is something I'm missing...
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