put characters on LCD

noisepic · Joined: 24 Jul 2005 Posts: 20

This is my first post.I try to put a character on LCD I can't see it on LCD
this is my code

treitmey · Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA

1) put a continuous loop at the end of your program.
2) When I compile this, it complains about a tris_d. Your chip doesn't have
a port D. Thus the ports you defined are wrong.

Bieli · Joined: 15 Sep 2003 Posts: 9

If I remember the #include <lcd.c> should be after #use delay becouse it ise delay function.

#include<16f84a.h>
#fuses NOWDT,PUT,HS,NOPROTECT
#use delay(clock=12000000)// crystal 12MHZ
#include<lcd.c>
main()
{
lcd_init();
lcd_putc('b');
}

Mustafa · Guest

I did this but got an error: Undefined identifier set_tris_d while compiling.

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Look at the 4th post in the following thread. It has a good example
for using the 16F84A with a LCD. Because the 16F84A doesn't have
a port D, you must connect the LCD to Port B, and then tell the LCD
driver to use that port. Note how he does that, with the #define
statement.
http://www.ccsinfo.com/forum/viewtopic.php?t=21376&highlight=useportblcd