I am trying to use a NI-9474 and cDAQ to generate a 5+V square wave at various frequencies. I can get the Counter I/O to output whatever frequency I need, but I only get ~200mV output. If I try using the digital I/O I can't seem to get frequency control to work right. So far I've just been playing with Max and Signal Express. Do I need to have a program to get the digital I/O to work right? It seems the counter I/O does not care about the Vsup from my DC power supply at all?
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