Only 8 characters on my 2x16 LCD!!

[Yull]

Hello, I've programmed my 2x16 hitachi powered LCD using LCD.c and I can't display "123456789ABCDEF" on the first line, I have just "12345678"!!!

Here is my code :

lcd_init();
delay_ms( 20 );
lcd_gotoxy(1,1);
delay_ms( 20 );
lcd_putc("\f123456789ABCDEF\n123456789ABCDEF");

Thanks by advance for your help

P.S.: I'm using a PIC16F873

[RICHARD]

Dear Friend,

I am afriad you will have to submit the complete program list, including all the header configuration information!!!!

have you called the lcd.c --file??
is the lcd connected up correctly via port D??

Hope this helps

[Richard]

Dear friend,

I am afraid that you can not have a "\n" operator,
if you want to operate on the next line you will have to have:

lcd gotoxy(x,y) //first line
lcd_putc("zzz")
lcd gotoxy(x,y) // second line
lcd_putc("zzz")


The \f, \n operator only works in the printf command!!

Regards,

[jds-pic]

[Yull]

Thanks for the replies, I will be trying those on Monday (week end now).

For information my LCD is put on PortB because the 16F873 don't have D port.

[Mark]

Dear All,

I tested his code and it worked just fine.

[PCM programmer]

[Yull]

Thanks a lot again for your help.
As requested, I put the entire source here :

#include "C:\Documents and Settings\xxx\Mes documents\PCW TEST\TEST.h"
#include <stdio.h>
#include <lcd.c>


void main()
{

setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
setup_spi(FALSE);
setup_counters(RTCC_INTERNAL,RTCC_DIV_2);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
set_tris_a (0);

lcd_init();
delay_ms( 20 );
lcd_putc("\f");
lcd_gotoxy(1,0);
delay_ms( 20 );
printf(lcd_putc,"\f123456789ABCDEF\n123456789ABCDEF");
//lcd_putc("\f123456789ABCDEF\n123456789ABCDEF");
delay_ms( 3000 );
lcd_putc("\f");

while(1)
{
output_low(LED0);
output_low(LED1);
delay_ms( 1000 );
output_low(LED0);
output_high(LED1);
delay_ms( 1000 );
output_high(LED0);
output_low(LED1);
delay_ms( 1000 );
output_high(LED0);
output_high(LED1);
delay_ms( 1000 );
}
}


and my "test.h" :

#include <16F873.h>
#device adc=8
#use delay(clock=11059200)
#fuses HS, NOWDT, NOPROTECT, NOLVP, BROWNOUT, PUT
#define LED0 PIN_A0
#define LED1 PIN_A1

Thanks for help

[PCM programmer]

[Yull]

You're right, but the problem still remains...

[Yull]

Not sure, but my LCD seems to be dead

[Mark]

Did you make this board? If not, whose board is it?

[Guest]

Yes it's my board, i'm waiting for a new LCD to test my code

[Will Reeve]

Not sure if it will help but the 1 x 16 line display I have just used is a bit of a pain! The first 8 characters are located at 0x00 to 0x07 in the LCD memory and the next 8 were located at 0x40 to 0x47 (usually where line 2 is stored!). Might be worth checking with the LCD manufacturer where the LCD text memory is located.

[YulL]

I've got my 2x16 LCD and I confirm that the last one was dead!!!
Grrrrrr