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PIC 16F767 rs232 Read Problems

 
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PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Mar 08, 2005 3:19 pm     Reply with quote
Try a more simple test program, and also include a #fuses statement.
Try sending characters to the PIC by typing in a terminal program.
You should see them echo'ed back to the terminal.
Code:
#include <16F767.h>
#fuses HS, NOWDT, NOPROTECT, BROWNOUT, PUT
#use delay(clock=20000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

void main()
{
char c;

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


Note that this PIC doesn't support Low Voltage Programming, so the
LVP and NOLVP fuses are not an issue here.
chipp



Joined: 08 Mar 2005
Posts: 2

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It Works!
PostPosted: Thu Mar 10, 2005 11:46 am     Reply with quote
Thank you, simple as it is it works, it seems like setting the TRIS on Port C was somehow interferring, so I commented it out:

Code:

//    set_tris_c(0x10000000); // C7 rx, C6 tx

fuzzy



Joined: 26 Feb 2005
Posts: 64

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PostPosted: Thu Mar 10, 2005 2:54 pm     Reply with quote
I had a similar problem, my pic received all what he transmitted!!

I solved setting in a correct way TrisC.

in your case 0x10000000 is a hexadecimal number not a binary one.

tri to set 0b10000000 or 0x80 in TRISC
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