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hadeelqasaimeh



Joined: 05 Jan 2006
Posts: 105

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18f458
PostPosted: Thu Oct 05, 2006 11:27 am     Reply with quote
hi all
i try to use pic18f458,,i write simple code that input avalue from port and out it into other port but it dosent work,,,i use proutus simulator
please if any have some sample code and schematic
thanx
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Thu Oct 05, 2006 4:02 pm     Reply with quote
Quote:

I write simple code that input a value from port and out it into other port
but it doesn't work

This is very easy to do, if you use the CCS functions to read a port
and output to a port. In the example below, the program reads Port B
and writes the data to Port D. The compiler will handle setting the
correct TRIS. You don't have to do it.
Code:

#include <18F458.h>
#fuses XT,NOWDT,PUT,BROWNOUT,NOLVP
#use delay(clock=4000000)

//====================================
void main(void)
{
int8 value;

while(1)
  {
   value = input_b(); // Read Port B
   output_d(value);   // Write to Port D
  }
}
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