Did you set all the unused pins as outputs (using the tris register) and set them to low? If not please do it! Never leave floating inputs. If they cannot be set as outputs, then you must ground them.
Cheers
Al
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Re: Noise on input signal
Did you set all the unused pins as outputs (using the tris register) and set them to low? If not please do it! Never leave floating inputs. If they cannot be set as outputs, then you must ground them.
Cheers
Al
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