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Trouble getc() ing characters with serial
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michellelicious



Joined: 15 Apr 2007
Posts: 3

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To PCM programmer
PostPosted: Tue May 08, 2007 8:45 pm     Reply with quote

PCM programmer wrote:
Try a simple program below, that echoes back the characters that
you type in to the terminal window. It should work.
Code:

#include <16F876A.h>
#fuses XT,NOWDT,NOPROTECT,BROWNOUT,PUT,NOLVP
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

//============================
void main()
{
char c;

while(1)
  {
   c = getc();
   putc(c);
  }

}




This does not work for me!!! But why? The code is simple. I can only receive FROM PIC but the pic itself is not getc()ing anything.

CCS 4.013

PIC16f877 and 16f877a
Max232

Hyperterminal and Serial Port monitor

Thanx for any response
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue May 08, 2007 9:40 pm     Reply with quote

I don't have 4.013, but I do have 4.014. I tested it just now with that
verison, with a 16F877 and a PicDem2-Plus board. It works. It probably
also works with 4.013, because this type of simple program is likely what
CCS used to do some sort of pass-fail test on the version.

If you built your own board, then buy a pre-made board from some company. If you're using Proteus, then buy a real hardware board.
If you built your own serial cable, then buy a cable.
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