Publicado por: nordestenica en 10 de Abril de 2004, 04:38:00
la question es que e cojido unos codigos e los e estado estudiando e me parecen interensantes e e echo algunas pruebas e e chegado a esto un menu en una lcd que te da un beep cada vez que pulsas un boton e vaz a esse otro menu en esse otro menu tienes la opcion de up dow lo que quiero acer es que cada vez que se pulse un boton en la pantalha lcd muestre por exemplo 1 si vuelves a pulsar esse mismo boton en la pantalha lcd te muestre 2 lo e intentado todo e nada
otra perguntinta como se puede acer que en un pin de un pic cada vez que pulsas un boton esse pin vaya aumentando su salida exemplo
si pulsas el boton una vez en el pin b1 tendras 0,5V si pulsas otras vez esse mismo boton en el pin te subira de 0,5V a 1V e assi en adelantre asta chegar a los 5V
aqui les dejo el codigo
el codigo es interesante e no no es de mi autoria yo solo lo coji e le ices los cambios pero es interesante mirenlo e pruebenlo
#case
#include <16F877.H>
#device *=16
#device ICD=TRUE
#device adc=10
#fuses NOWDT,HS, PUT, NOPROTECT, BROWNOUT, NOLVP
//#fuses XT, NOPROTECT, PUT, NOWDT, BROWNOUT, NOLVP, NOCPD, NOWRT
#use delay ( clock=4000000 )
#use standard_io ( A )
#use standard_io ( B )
#use standard_io ( C )
//***************************LCD NAO MEXER**************************************
/* LCD STUFF */
#define LCD_D0 PIN_D2
#define LCD_D1 PIN_D3
#define LCD_D2 PIN_D4
#define LCD_D3 PIN_D5
#define LCD_EN PIN_D1
#define LCD_RS PIN_D0
#define LINHA_1 0
#define LINHA_2 0x40
#define CLEAR_DISP 0x01
void LCD_Init ( void );
void LCD_SetPosition ( unsigned int cX );
void LCD_PutChar ( unsigned int cX );
void LCD_PutCmd ( unsigned int cX );
void LCD_PulseEnable ( void );
void LCD_SetData ( unsigned int cX );
//**************************+FIN LCD********************************************
void BUTON_1 ( void );
void BUTON_2 ( void );
void BUTON_3 ( void );
static char cEnlargeTime, cMenu;
#define PULSE_1 PIN_C0
#define PULSE_2 PIN_C1
#define PULSE_3 PIN_C2
#define DEBOUNCE_DELAY 20
void BAIXA ( void );
void MEDIA ( void );
void ALTA ( void );
void VOLT_5 ( void );
void VOLT_12 ( void );
void VOLT_15 ( void );
void BEEP ( void );
void BAIXA_MAIS ( void );
void BAIXA_MENOS ( void );
void BUTON_1 ( void );
void BUTON_2 ( void );
void BUTON_3 ( void );
//*********************INICIO***************************************************
void main ( void )
{
char cX;
LCD_Init();
LCD_PutCmd ( CLEAR_DISP );
LCD_PutCmd ( CLEAR_DISP );
LCD_SetPosition (LINHA_1 );
printf ( LCD_PutChar, " **MAXI POWER** " );
delay_ms(500);
LCD_SetPosition ( LINHA_2 );
printf ( LCD_PutChar, " Manuel Xastre " );
delay_ms(2000);
while ( TRUE )
{
char cX;
LCD_PutCmd ( CLEAR_DISP );
LCD_SetPosition ( LINHA_1 );
printf ( LCD_PutChar, "Select... " );
delay_ms (50);
LCD_SetPosition ( LINHA_2 );
printf ( LCD_PutChar, "baixa media alta" );
delay_ms ( 50);
while ( TRUE )
{
if ( input ( PULSE_1 ) == 0 )
{
BEEP();
BAIXA();
break;
}
if ( input ( PULSE_2 ) == 0 )
{
BEEP();
MEDIA();
break;
}
if ( input ( PULSE_3 ) == 0 )
{
BEEP();
ALTA();
break;
delay_ms(100);
}
}
}
}
//***************************BAIXA**********************************************
void BAIXA ( void )
{
LCD_PutCmd ( CLEAR_DISP );
LCD_SetPosition ( LINHA_1 );
printf ( LCD_PutChar, "Escolheu Baixa.." );
delay_ms (50);
LCD_SetPosition ( LINHA_2 );
printf ( LCD_PutChar, " Bak" );
delay_ms ( 50);
while ( TRUE )
{
if ( input ( PULSE_1 ) == 0 )
{
BEEP();
break;
}
//----------------------------------------------------------------------------
//------------------------------------------------------------------------------
}
if ( input ( PULSE_3 ) == 0 )
{
BEEP();
break;
delay_ms(100);
}
}
//************************MEDIA*****************************************
void MEDIA ( void )
{
LCD_PutCmd ( CLEAR_DISP );
LCD_SetPosition ( LINHA_1 );
printf ( LCD_PutChar, "Escolheu Media.." );
delay_ms (50);
LCD_SetPosition ( LINHA_2 );
printf ( LCD_PutChar, " Bak" );
delay_ms ( 50);
while ( TRUE )
{
if ( input ( PULSE_3 ) == 0 )
{
BEEP();
break;
delay_ms(100);
}
}
}
//***********************ALTA**************************************************
void ALTA ( void )
{
LCD_PutCmd ( CLEAR_DISP );
LCD_SetPosition ( LINHA_1 );
printf ( LCD_PutChar, "Escolheu Alta.." );
delay_ms (50);
LCD_SetPosition ( LINHA_2 );
printf ( LCD_PutChar, " Bak" );
delay_ms ( 50);
while ( TRUE )
{
if ( input ( PULSE_3 ) == 0 )
{
BEEP();
break;
delay_ms(100);
}
}
}
//*********************PULSO SAIDA ALTA*****************************************
void BAIXA_MAIS ( void )
{
output_high (PIN_B0 );
delay_ms ( 900 );
output_low ( PIN_B0 );
delay_ms ( 900 );
}
//**************************BEEP INFORMA***************************************+
void BEEP ( void )
{
output_high ( PIN_D7 );
delay_ms ( 500 );
output_low ( PIN_D7 );
delay_ms ( 500 );
}
//****************************+RUTINA LCD NAO MEXER*****************************
void LCD_Init ( void )
{
LCD_SetData ( 0x00 );
delay_ms ( 200 ); /* wait enough time after Vdd rise */
output_low ( LCD_RS );
LCD_SetData ( 0x03 ); /* init with specific nibbles to start 4-bit mode */
LCD_PulseEnable();
LCD_PulseEnable();
LCD_PulseEnable();
LCD_SetData ( 0x02 ); /* set 4-bit interface */
LCD_PulseEnable(); /* send dual nibbles hereafter, MSN first */
LCD_PutCmd ( 0x2C ); /* function set (all lines, 5x7 characters) */
LCD_PutCmd ( 0x0C ); /* display ON, cursor off, no blink */
LCD_PutCmd ( 0x01 ); /* clear display */
LCD_PutCmd ( 0x06 ); /* entry mode set, increment */
}
void LCD_SetPosition ( unsigned int cX )
{
/* this subroutine works specifically for 4-bit Port A */
LCD_SetData ( swap ( cX ) | 0x08 );
LCD_PulseEnable();
LCD_SetData ( swap ( cX ) );
LCD_PulseEnable();
}
void LCD_PutChar ( unsigned int cX )
{
/* this subroutine works specifically for 4-bit Port A */
output_high ( LCD_RS );
LCD_SetData ( swap ( cX ) ); /* send high nibble */
LCD_PulseEnable();
LCD_SetData ( swap ( cX ) ); /* send low nibble */
LCD_PulseEnable();
output_low ( LCD_RS );
}
void LCD_PutCmd ( unsigned int cX )
{
/* this subroutine works specifically for 4-bit Port A */
LCD_SetData ( swap ( cX ) ); /* send high nibble */
LCD_PulseEnable();
LCD_SetData ( swap ( cX ) ); /* send low nibble */
LCD_PulseEnable();
}
void LCD_PulseEnable ( void )
{
output_high ( LCD_EN );
delay_us ( 10 );
output_low ( LCD_EN );
delay_ms ( 5 );
}
void LCD_SetData ( unsigned int cX )
{
output_bit ( LCD_D0, cX & 0x01 );
output_bit ( LCD_D1, cX & 0x02 );
output_bit ( LCD_D2, cX & 0x04 );
output_bit ( LCD_D3, cX & 0x08 );
}