Anonymous
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Jun 26, 2014
10:55 AM
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Jun 26, 2014
10:55 AM
Hi all,
At the moment I am trying to provide a negative value to a comparator positive input pin, so the comparator output will be triggered high once a negative voltage goes lower than this defined threshold.
Unfortunatelly it looks like the PSoC does not accept a negative signal. I have checked this with scope and anything that goes below 0 Volts just disappears from the input signal.
Am I doing somethign wrong or this is, in fact, the way it is?
Thanks.
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PSoC 5LP
1 Solution
Jun 26, 2014
11:44 AM
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Jun 26, 2014
11:44 AM
No input signal may be lower than GND on a PSoC. Use an R-ladder to shift the signal into positve Voltage.
Bob
7 Replies