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flex_lcd.h
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flex_lcd.h
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#ifndef __flex_lcd_H
#define __flex_lcd_H
//******************************************
// Libreria para control de LCD *
// Modo Control 4 bits *
// Hector Ramos
//******************************************
#define LCD_RD7 PORTDbits.RD7 // D7
#define TRISRD7 TRISDbits.TRISD7
#define LCD_RD6 PORTDbits.RD6 // D6
#define TRISRD6 TRISDbits.TRISD6
#define LCD_RD5 PORTDbits.RD5 // D5
#define TRISRD5 TRISDbits.TRISD5
#define LCD_RD4 PORTDbits.RD4 // D4
#define TRISRD4 TRISDbits.TRISD4
#define LCD_EN PORTEbits.RE2 // EN
#define TRISEN TRISEbits.TRISE2
#define LCD_RS PORTEbits.RE1 // RS
#define TRISRS TRISEbits.TRISE1
//comandos disponibles
#define LCD_FIRST_ROW 128
#define LCD_SECOND_ROW 192
#define LCD_THIRD_ROW 148
#define LCD_FOURTH_ROW 212
#define LCD_CLEAR 1
#define LCD_RETURN_HOME 2
#define LCD_CURSOR_OFF 12
#define LCD_UNDERLINE_ON 14
#define LCD_BLINK_CURSOR_ON 15
#define LCD_MOVE_CURSOR_LEFT 16
#define LCD_MOVE_CURSOR_RIGHT 20
#define LCD_TURN_OFF 0
#define LCD_TURN_ON 8
#define LCD_SHIFT_LEFT 24
#define LCD_SHIFT_RIGHT 28
void Lcd_Init(void);
void Lcd_Out(unsigned char y, unsigned char x, const char *buffer);
void Lcd_Out2(unsigned char y, unsigned char x, char *buffer);
void Lcd_Chr_CP(char data);
void Lcd_Cmd(unsigned char data);
void Lcd_Init(void){
unsigned char data;
TRISRD7 = 0;
TRISRD6 = 0;
TRISRD5 = 0;
TRISRD4 = 0;
TRISEN = 0;
TRISRS = 0;
LCD_RD7 = 0;
LCD_RD6 = 0;
LCD_RD5 = 0;
LCD_RD4 = 0;
LCD_EN = 0;
LCD_RS = 0;
__delay_us(5500);
__delay_us(5500);
__delay_us(5500);
__delay_us(5500);
__delay_us(5500);
__delay_us(5500);
for(data = 1; data < 4; data ++)
{
LCD_RD7 = 0; LCD_RD6 = 0; LCD_RD5 = 1; LCD_RD4 = 1; LCD_EN = 0;
LCD_RS = 0; LCD_RD7 = 0; LCD_RD6 = 0; LCD_RD5 = 1; LCD_RD4 = 1;
LCD_EN = 1; LCD_RS = 0;
__delay_us(5);
LCD_RD7 = 0; LCD_RD6 = 0; LCD_RD5 = 1; LCD_RD4 = 1; LCD_EN = 0;
LCD_RS = 0;
__delay_us(5500);
}
LCD_RD7 = 0; LCD_RD6 = 0; LCD_RD5 = 1; LCD_RD4 = 0; LCD_EN = 0; LCD_RS = 0;
LCD_RD7 = 0; LCD_RD6 = 0; LCD_RD5 = 1; LCD_RD4 = 0; LCD_EN = 1; LCD_RS = 0;
__delay_us(5);
LCD_RD7 = 0; LCD_RD6 = 0; LCD_RD5 = 1; LCD_RD4 = 0; LCD_EN = 0; LCD_RS = 0;
__delay_us(5500);
data = 40; Lcd_Cmd(data);
data = 16; Lcd_Cmd(data);
data = 1; Lcd_Cmd(data);
data = 15; Lcd_Cmd(data);
}
void Lcd_Out(unsigned char y, unsigned char x, const char *buffer)
{
unsigned char data;
switch (y)
{
case 1: data = 128 + x; break;
case 2: data = 192 + x; break;
case 3: data = 148 + x; break;
case 4: data = 212 + x; break;
default: break;
}
Lcd_Cmd(data);
while(*buffer) // Write data to LCD up to null
{
Lcd_Chr_CP(*buffer);
buffer++; // Increment buffer
}
return;
}
void Lcd_Out2(unsigned char y, unsigned char x, char *buffer)
{
unsigned char data;
switch (y)
{
case 1: data = 128 + x; break;
case 2: data = 192 + x; break;
case 3: data = 148 + x; break;
case 4: data = 212 + x; break;
default: break;
}
Lcd_Cmd(data);
while(*buffer) // Write data to LCD up to null
{
Lcd_Chr_CP(*buffer);
buffer++; // Increment buffer
}
return;
}
void Lcd_Chr_CP(char data){
LCD_EN = 0; LCD_RS = 1;
LCD_RD7 = (data & 0b10000000)>>7; LCD_RD6 = (data & 0b01000000)>>6;
LCD_RD5 = (data & 0b00100000)>>5; LCD_RD4 = (data & 0b00010000)>>4;
_delay(10);
LCD_EN = 1; __delay_us(5); LCD_EN = 0;
LCD_RD7 = (data & 0b00001000)>>3; LCD_RD6 = (data & 0b00000100)>>2;
LCD_RD5 = (data & 0b00000010)>>1; LCD_RD4 = (data & 0b00000001);
_delay(10);
LCD_EN = 1; __delay_us(5); LCD_EN = 0;
__delay_us(5); __delay_us(5500);
}
void Lcd_Cmd(unsigned char data){
LCD_EN = 0; LCD_RS = 0;
LCD_RD7 = (data & 0b10000000)>>7; LCD_RD6 = (data & 0b01000000)>>6;
LCD_RD5 = (data & 0b00100000)>>5; LCD_RD4 = (data & 0b00010000)>>4;
_delay(10);
LCD_EN = 1; __delay_us(5); LCD_EN = 0;
LCD_RD7 = (data & 0b00001000)>>3; LCD_RD6 = (data & 0b00000100)>>2;
LCD_RD5 = (data & 0b00000010)>>1; LCD_RD4 = (data & 0b00000001);
_delay(10);
LCD_EN = 1; __delay_us(5); LCD_EN = 0;
__delay_us(5500);//Delay_5us();
}
#endif