Hello Putnam,
> I've tried 100K resistors from the I/O pin to ground, but apparently the 1.3V is a solid signal level, not just a float.
I think your problem is the resistor value you're using - there's no way a pin set up as an input should have a fixed signal level.
Assuming that you're using 5V logic, 100k will only give you 50uA of current which is no way enough to pull the input low. Try something like 10k or even 3.3k and you'll probably have more success.
Cheers, Brett Percy
Software / IT Manager Certified LabVIEW Developer
CPE Systems Pty. Ltd. 20A Harper Street Abbotsford VIC 3067
Ph: (+613) 9419 1499 Fax: (+613) 9419 1411 web: www.cpesys.com.au email: [EMAIL PROTECTED]
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