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PIC16877A + LCD Problems

 
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s.achilless



Joined: 21 Feb 2009
Posts: 2

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PIC16877A + LCD Problems
PostPosted: Sat Feb 21, 2009 9:18 am     Reply with quote
Hello everbody,

Can anyone help me about this code ? I am new on the pic programming.
I compile the code below and upload it into Pic16f877a but the lcd did not display anything ? where am i wrong ?

I use ex-b kit int www.expkits.com/?s=ex1-b.htm
Code:

#include <16F877A.h>
#fuses HS, NOWDT, NOPROTECT
#use delay(clock=2000000)

#include <lcd.c>
// in ldc.c, i already uncomment //#define use_portb_lcd TRUE

void main(void) {
   lcd_init();
   while (TRUE)
   {
     lcd_gotoxy(1,1);
     lcd_putc ("\f Hello \ ");
     delay_ms(500);
     
   }
}
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Sat Feb 21, 2009 1:00 pm     Reply with quote
Quote:
#include <16F877A.h>
#fuses HS, NOWDT, NOPROTECT
#use delay(clock=2000000)

This is only set for 2 MHz. Almost certainly, it should be 20 MHz.

Also, add the NOLVP fuse.
s.achilless



Joined: 21 Feb 2009
Posts: 2

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PostPosted: Sat Feb 21, 2009 1:15 pm     Reply with quote
I set clock 20.000.000 and also fuse NOLVP but there is still no changes ? :(
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Sat Feb 21, 2009 3:30 pm     Reply with quote
See this thread about solving LCD problems:
http://www.ccsinfo.com/forum/viewtopic.php?t=29412&start=1
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