The problems with my DAQ never seem to end.
I've got an Apex Stratus X ND ADC and an RTD DM6620 DAC in a PC104 system. The DAC creates a 15kHz 1000-step triangle wave that provides modulation to an RF generator in an NMR system. The NMR signal goes through an amplifier, and then to the ADC...
I've got an 8254 timer/counter chip that is part of a DAQ system.
What I want to do is generate a 15kHz signal, but have it put out only a very precise number of pulses, in a range from 100,000 to 2,000,000. However, I am getting a wide range of pulses, so when I ask for 200,000, instead I get...