ko biet

//??
/*
 * LCD_FUNC.h
 *
 *  Created on: Mar 29, 2017
 *      Author: Administrator PC
 */

#ifndef LCD_FUNC_H_
#define LCD_FUNC_H_

#include "stdio.h"
#include "stdbool.h"
#include "stdint.h"
#include "inc/hw_types.h"
#include "inc/hw_memmap.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"

//RS=1->nhap lenh, RS=0->nhap du lieu
#define LCD_RS                   GPIO_PIN_1

//R/W
#define LCD_RW                    GPIO_PIN_2


//Enable
#define  LCD_E                     GPIO_PIN_3

//data
#define LCD_D4                   GPIO_PIN_4
#define LCD_D5                   GPIO_PIN_5
#define LCD_D6                   GPIO_PIN_6
#define LCD_D7                   GPIO_PIN_7

//Display LCD
#define CLEAR                      0x01
#define HOME                       0x02
#define CURSOR_SHIFT_L             0x04
#define CURSOR_SHIFT_R             0x06
#define DISPLAY_SHIFT_R            0x05
#define DISPLAY_SHIFT_L            0x07
#define CURSOR_DISPLAY_OFF         0x08
#define DOFF_CON                   0x0A
#define DON_COFF                   0x0C
#define DON_BLINKC                 0x0E
#define SHIFT_ALL_L                0x18

//Function
void lcd_init(void);                                          //khoi dong lcd
void lcd_clear(void);                                        //xoa man hinh lcd
void lcd_gotoxy(unsigned char col, unsigned char row);      //dich chuyen con tro toi vi tri co toa do (x,y)
void lcd_delay_ms(unsigned long t);                         //delay t ms
void lcd_dd_mm_yy(int d, int m, int y);                     //hien thi ngay thang nam
void lcd_hh_mm_ss(int h, int m, int s);                    //hien thi gio phut giay
void lcd_send_byte(signed char add, signed char n);    //gui 1 byte len lcd
void lcd_putc(unsigned int X);
int LCD_DX[4] = {LCD_D4,LCD_D5,LCD_D6,LCD_D7};

#endif /* LCD_FUNC_H_ */

//===============================================================================================================================
//===============================================================================================================================
//===============================================================================================================================
/*
 * LCD_FUNC.c
 *
 *  Created on: Mar 29, 2017
 *      Author: Administrator PC
 */
#include "LCD_FUNC.h"
#include "stdio.h"
#include "stdbool.h"
#include "stdint.h"
#include "inc/hw_types.h"
#include "inc/hw_memmap.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"

void lcd_init()
{
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE,LCD_RS|LCD_E|LCD_RW|LCD_D4|LCD_D5|LCD_D6|LCD_D7);
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_RS,0);
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_E,0);
	lcd_delay_ms(200);
	lcd_delay_ms(2);
	lcd_send_byte(0,0x38);        //5x7,multi
	lcd_delay_ms(2);
	lcd_send_byte(0,DON_BLINKC);
	lcd_delay_ms(2);
	lcd_send_byte(0,0x01);
}

void lcd_clear()
{
	lcd_send_byte(0,0x01);
	lcd_delay_ms(10);
}

void lcd_gotoxy(unsigned char row, unsigned char col)
{
	unsigned char address;
	if(row==1)
		address= 0x40 + col;
	else
		address = 0x80 + col;
	lcd_send_byte(0,address);
	lcd_delay_ms(1);
}

void lcd_delay_ms(unsigned long t)
{
	while(t--)
	{
		SysCtlDelay(SysCtlClockGet()/3000);
	}
}

void lcd_dd_mm_yy(int dd, int mm, int yy)
{
	int x= 0x3A;
	lcd_send_byte(1,dd);
	lcd_delay_ms(1);
	lcd_send_byte(1,x);
	lcd_delay_ms(1);
	lcd_send_byte(1,mm);
	lcd_delay_ms(1);
	lcd_send_byte(1,x);
	lcd_delay_ms(1);
	lcd_send_byte(1,yy);
	lcd_delay_ms(1);
}

void lcd_hh_mm_ss(int hh, int mm, int ss)
{
	int x = 0x3A;
	lcd_send_byte(1,hh);
	lcd_delay_ms(1);
	lcd_send_byte(1,x);
	lcd_delay_ms(1);
	lcd_send_byte(1,mm);
	lcd_delay_ms(1);
	lcd_send_byte(1,x);
	lcd_delay_ms(1);
	lcd_send_byte(1,ss);
	lcd_delay_ms(1);
}

void lcd_send_byte(signed char add, signed char n)
{
	int t,i;
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_RS,0);
	if(add) GPIOPinWrite(GPIO_PORTF_BASE,LCD_RS,1);
	lcd_delay_ms(10);
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_E,0);
	for (i=0;i<4;i++)
	{
		t= n & (0x10<<i);
		GPIOPinWrite(GPIO_PORTF_BASE,LCD_DX[i],t);
	}
	lcd_delay_ms(1);
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_E,1<<3);
	lcd_delay_ms(1);
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_E,0);
	for (i=0;i<4;i++)
	{
		t= n & (0x01<<i);
		GPIOPinWrite(GPIO_PORTF_BASE,LCD_DX[i],t);
	}
	lcd_delay_ms(1);
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_E,1<<3);
	lcd_delay_ms(1);
	GPIOPinWrite(GPIO_PORTF_BASE,LCD_E,0);

}

void lcd_putc(unsigned int X)
{
	lcd_send_byte(1,X);
	lcd_delay_ms(2);
}



//================================== End of file ==================================================