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pic16f877 I want to change port of Keypad to portA or C

 
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nut7546



Joined: 08 Sep 2010
Posts: 2

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pic16f877 I want to change port of Keypad to portA or C
PostPosted: Wed Sep 08, 2010 6:49 pm     Reply with quote
Hi All,
From below code.
I use ccs compiler.
Keypad is port B, LCD is portD.
I want to change port of Keypad is portA or C.
Please suggest to me too.
Thank you.
Code:

#include <16F877A.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)

#include <lcd.c>
#define use_portb_kbd
#include <kbd.c>

int i=0;
char doc_id[8],pat_id[8];

void doctor();
void patiant();
void showid();

void kbd_pullup_init()
{
   port_b_pullups(true);
}

void main()
{
   char k;
   int a=1;
   
   kbd_pullup_init();
   lcd_init();
   doctor();
   
   while (true)
   { 
      lcd_putc("\fHELLO\n");   
   }

}

void doctor()
{
   char k=0;
   lcd_putc("\fID  DOCTOR\n");
   i=0;
   
   while(i<4)
   {
      k=kbd_getc();
      if(k!=0)
      {
      doc_id[i]=k;
      lcd_putc(doc_id[i]);
      i++;
      }
   }
   patiant();
}

void patiant()
{
   char k=0;
   lcd_putc("\fPATIANT  ID\n");
   i=0;
   while(i<4)
   {
      k=kbd_getc();
      if(k!=0)
      {
         pat_id[i]=k;
         lcd_putc(pat_id[i]);
         i++;
      }
   }
   showid();   
}

void showid()
{
   int j;
   lcd_putc("\fDOC ID:");
   for(j=0;j<4;j++)
   {
      lcd_putc(doc_id[j]);
   }
   lcd_putc("\n");
         
   lcd_putc("PAT ID:");
   for(j=0;j<4;j++)
   {
      lcd_putc(pat_id[j]);
   }
   delay_ms(2000);
}
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Sep 08, 2010 9:35 pm     Reply with quote
Use the flex keypad driver. Change the #define statements at the top
of the file, to be the same as your new connections on Port A.
http://www.ccsinfo.com/forum/viewtopic.php?t=26333

Make sure the keypad Row pins have pull-up resistors on them.
Use 10K ohm resistors.
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