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Analog output, Counters – National Instruments NI 6232 User Manual

Page 149

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Appendix B

Troubleshooting

© National Instruments Corporation

B-3

NI 6232/6233 User Manual

Analog Output

I am seeing glitches on the output signal. How can I minimize it?

When you use a DAC to generate a waveform, you may observe glitches on
the output signal. These glitches are normal; when a DAC switches from
one voltage to another, it produces glitches due to released charges. The
largest glitches occur when the most significant bit of the DAC code
changes. You can build a lowpass deglitching filter to remove some of these
glitches, depending on the frequency and nature of the output signal. Visit

ni.com/support

for more information on minimizing glitches.

Counters

When multiple sample clocks on my buffered counter measurement
occur before consecutive edges on my source, I see weird behavior.
Why?

Duplicate count prevention ensures that the counter returns correct data for
counter measurement in some applications where a slow or non-periodic
external source is used.

Refer to the

Duplicate Count Prevention

section of Chapter 7,

Counters

,

for more information.

How do I connect counter signals to my M Series device?

The

Default Counter Terminals

section of Chapter 7,

Counters

, has

information on counter signal connections.

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