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  Topic: PIC 18F4550 RC4 RC5 Digital input Problem
Alzmeier

Replies: 4
Views: 9000
 PostForum: General CCS C Discussion   Posted: Thu Feb 06, 2014 9:08 am   Subject: PIC 18F4550 RC4 RC5 Digital input Problem
Sorry,
compiler version PCWH 3.245
the problem is that they work, I connect 5V, I get a 1, I disconnect 5V, I get a 0. But some times they get to 1 without an external 5V
  Topic: PIC 18F4550 RC4 RC5 Digital input Problem
Alzmeier

Replies: 4
Views: 9000
 PostForum: General CCS C Discussion   Posted: Thu Feb 06, 2014 8:54 am   Subject: PIC 18F4550 RC4 RC5 Digital input Problem
externally it is a signal 5V, 100Ohm in Serial, 10kOhm for pull down, the 5V are connected when a Relay is closed,
I use input_state, because at all my other inputs it is working fine
  Topic: PIC 18F4550 RC4 RC5 Digital input Problem
Alzmeier

Replies: 4
Views: 9000
 PostForum: General CCS C Discussion   Posted: Thu Feb 06, 2014 8:35 am   Subject: PIC 18F4550 RC4 RC5 Digital input Problem
Hello all,

I want to use the RC4 and RC5 Ports as digital inputs.

So I added:

// disable USB module
#byte UCON = 0xF6D
#bit USBEN = UCON.3

// disable on-chip USB transceiver
#byte UCFG ...
 
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