Repeating trigger on digital in?

[em0]

Hi!

I'm trying to use a Digital Discovery (with the WaveForms SDK) to continuously capture data sent over a high speed bus. The USB connection is not fast enough to continuously sample the bus and send over the data to my PC, so I'm wondering if there's another way to do this. More specifically, is there a way to repeatedly trigger on edges and make only one sample at a time, slowly filling the buffer? From what I have read, the trigger needs to be reset from the PC every time...

Thanks

[attila]

Hi @em0

For this purpose you can use the "Sync" acquisition.

# trigger detector mask:          low &     hight & ( rising | falling )
dwf.FDwfDigitalInTriggerSet(hdwf, c_int(0), c_int(0), c_int(1), c_int(0)) # store sample on DIO0 rising edge
# or 
dwf.FDwfDigitalInTriggerSet(hdwf, c_int(0), c_int(0), c_int(1), c_int(1)) # store sample on DIO0 either edge