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noral
Joined: 09 May 2014
Posts: 4
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| LCD Menu problems |
 Posted: Fri Jun 20, 2014 2:41 am |
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Hi everyone!!
I'm developing a user's menu with two buttons to introduce a value. To reach my goal I use a increaser counter from 0 to 9 to introduce the hundreds in "MENU2" and the tens in "MENU3". With the left button I increase the number and with right button I want to move the cursor to introduce the tens.
My issue is that I can't pass from the "MENU2" to "MENU3".
Can anybody help me? I attach the code.
| Code: |
#include <24FJ128GC010.H>
#device adc=12
#fuses FRC, NOWDT, NOPROTECT, BROWNOUT, ICSP1
#use delay(clock = 8000000)
#include <flex_lcd.c>
#define ledrojo PIN_E0
#define ledverde PIN_E1
#define botonder PIN_E2
#define botonizq PIN_E3
#define buzzer PIN_E4
int boton;
//==========================
float tension;
signed int32 read;
int menu=1;
int i=0;
char tabNum[10]={'0','1','2','3','4','5','6','7','8','9'},j=0;
int mov[10];
int centenas;
int decenas;
int unidades;
void configurar(void);
void main()
{
disable_interrupts(GLOBAL);
setup_oscillator(OSC_INTERNAL,8000000);
output_low(ledrojo);
output_low(ledverde);
output_low(buzzer);
lcd_init();
delay_ms(100);
lcd_gotoxy(1,1);
printf(lcd_putc,"\fLISTO!");
printf(lcd_putc,"\n");
delay_ms(1500);
printf(lcd_putc,"\f");
delay_ms(750);
while(1)
{
if(input(botonder)==1){ //boton
delay_ms(30);
if(input(botonder)==1){
output_toggle(PIN_E0); //salida led
output_toggle(PIN_E1); //salida led
configurar();
menu++;
if (menu==7){
menu=1;
delay_ms(30);
}
while(input(botonder)==1);
}
}
}
}
void configurar()
{
switch (menu)
{
case 1:menu=1;
{
printf(lcd_putc, "\f");
printf(lcd_putc, "\n INICIO");
}
break;
case 2: menu=2;
{
printf(lcd_putc, "\fMENU2:");
printf(lcd_putc, "\n -->");
while(menu=2){
if(input(botonizq)){
do{
}while(input(botonizq));
delay_ms(75);
if(j>9){
j=0;
output_high(buzzer);
delay_ms(50);
output_low(buzzer);
}
lcd_gotoxy(1,2);
printf(lcd_putc,"%c",tabNum[j]);
printf(lcd_putc,"\b");
j++;
//incremento contador indice tabNum
}
if(input(botonder)==1){
menu=3;
}
}
centenas=j*100;
}
break;
case 3: menu=3;
{
printf(lcd_putc, "\fMENU3:");
while (menu==3){
if(!input(botonizq)){
do{
}while(!input(botonizq));
if(j>9){
j=0;
output_high(buzzer);
delay_ms(50);
output_low(buzzer);
}
lcd_gotoxy(2,2);
printf(lcd_putc,"a");
//printf(lcd_putc,"\b");
j++;
}
}
decenas=j*10;
}
}
}
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Mike Walne
Joined: 19 Feb 2004
Posts: 1785
Location: Boston Spa UK
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| Posted: Fri Jun 20, 2014 4:46 am |
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Take a step back.
Work out what you want to happen with pencil and paper.
Draw a picture of what you want to see at each stage.
It should fall out.
Mike |
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RF_Developer
Joined: 07 Feb 2011
Posts: 839
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| Posted: Fri Jun 20, 2014 5:26 am |
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| Mike Walne wrote: | Take a step back.
Work out what you want to happen with pencil and paper.
Draw a picture of what you want to see at each stage.
It should fall out. |
Also think strongly about separating the functions: button handling/debouncing, and menu processing. Its simpler to do and involves less repeated code than trying to do it all in one hit.
I had a similar sort of problem on a ARM based product with just two user buttons. I wrote a button press handler that did all the button stuff, and a table driven menu handler which implemented the menu functions. One button was for moving from item to item in the menus, the other was for selecting the menu item. I could have several levels of menus, all defined by the table. So it was left press, press to get to an item/sub-menu, right press to select it, left press to traverse the sub-menu, right press to select, etc. |
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