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Message |
anilmanisingh
Joined: 31 Mar 2011
Posts: 6
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| Unable to display function in 16 x 2 LCD in second Line |
 Posted: Thu Sep 10, 2015 12:20 am |
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Hi , Everyone
I am using two push buttons to display two parameters at same time.
But I am unable to do so. I want to change my program each time I press the pushbutton1 in Line 1 and in Line 2 I want to change function F with each press of the other pushbutton2.
Please help me.
| Code: |
#include <16f876a.h>
#fuses XT,NOWDT,NOPROTECT,PUT,NOLVP
#use delay (clock=4000000)
#use standard_io(b)
#define use_portb_lcd TRUE
#include<lcd.c>
/// Program Function
void program(char);
void freq(char);
///PROGRAM
void main(void)
{
char option=0;
char option2=0;
setup_ccp1(CCP_PWM);
lcd_init();
program(option);
freq(option2);
for(;;){
if(!input(PIN_A0)){
do{
}while(!input(PIN_A0));
option++;
if(option>9)
option=0;
program(option);
}
if(!input(PIN_A1)){
do{
}while(!input(PIN_A1));
option2++;
if(option2>4)
option2=0;
freq(option2);
}
}
}
void program(char menu)
{
lcd_putc("\f");
switch(menu){
case 0:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: M.STI");
break;
case 1:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: I.LOS");
break;
case 2:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: W.LOS");
break;
case 3:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: B.TON");
break;
case 4:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: B.SCU");
break;
case 5:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: B.SHA");
break;
case 6:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: B.COR");
break;
case 7:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: B.FIR");
break;
case 8:
lcd_gotoxy(1,1);
printf(lcd_putc,"\fPROGRAM: TUMMY");
break;
case 9:
lcd_gotoxy(1,1);
printf(lcd_putc,"\PROGRAM: F.LIF");
}
}
void freq(char menu)
{
lcd_putc("\f");
switch(menu){
case 0:
lcd_gotoxy(1,2);
printf(lcd_putc,"\nF : 1 ");
break;
case 1:
lcd_gotoxy(1,2);
printf(lcd_putc,"\nF : 2 ");
break;
case 2:
lcd_gotoxy(1,2);
printf(lcd_putc,"\nF : 3 ");
break;
case 3:
lcd_gotoxy(1,2);
printf(lcd_putc,"\nF : 4 ");
break;
case 4:
lcd_gotoxy(1,2);
printf(lcd_putc,"\nF : 5 ");
break;
}
} |
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temtronic
Joined: 01 Jul 2010
Posts: 9174
Location: Greensville,Ontario
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| Posted: Thu Sep 10, 2015 4:59 am |
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Looks like the classic 'No debounce on the switches' problem.
Do a search for 'debounce' here and the code library for 20-30 solutions.
Also describe actual hardware( switch type, pullup, filter cap,etc.)
Jay |
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Sam_40
Joined: 07 Jan 2015
Posts: 127
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| Posted: Thu Sep 10, 2015 6:51 am |
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| IMHO, I think its the "\f". |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Thu Sep 10, 2015 10:00 am |
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| Quote: | void freq(char menu)
{
lcd_putc("\f");
switch(menu){
case 0:
lcd_gotoxy(1,2);
printf(lcd_putc,"\nF : 1 ");
break; |
You go to the start of line 2 with the lcd_gotoxy(). Then you send a
newline in the printf. Where will the \n take you to ? You won't be on line 2. |
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