LCD.rar_project

/* * File: LCD.c * Author: IBRAHIM LABS * EMAIL: Ibrahimlabs@gmail.com * * Website: http://www.ibrahimlabs.com/ * * Created on August 10, 2014, 5:41 PM */ #define _XTAL_FREQ 10000000UL // 10MHz #include "LCD.h" #include <xc.h> /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ void Initilize_LCD(void) { /* making Pins as output */ ENABLE_DIRECTION = 0; RS_DIRECTION = 0; LCD_BUS_DIRECTION = 0; /* Writing zero to pins and port */ ENABLE_LCD = 0; RS_LCD = 0; LCD_BUS = 0; __delay_ms(10); /* ten miliseconds delay */ /* writing commonds for initialization of LCD */ WriteCmd_LCD(0x38); /* Functions Set as Given in Datasheet */ WriteCmd_LCD(0x0F); /* Display ON; Cursor ON; Blink ON */ WriteCmd_LCD(0x06); /* Display Shifting OFF */ ClearScreen_LCD(); /* Clear Display */ } /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ void ClearScreen_LCD(void) { WriteCmd_LCD(0x01); /* Clear Screen command */ __delay_ms(3); /* Delay for cursor to return home must be * atleast 3ms menstioned in datasheet */ } /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ void Toggle_Enable_Pin_LCD(void) { /* toggling Enable PIN is must for data to be displayed on screen After every Command and data for more details see datasheet */ ENABLE_LCD = 1; __delay_us(200); ENABLE_LCD = 0; __delay_us(200); } /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ void WriteCmd_LCD(unsigned char Cmd) { RS_LCD = 0; /* For command RS must be low (0) */ LCD_BUS = Cmd; /* write Command to data bus of LCD */ Toggle_Enable_Pin_LCD(); }// � www.IbrahimLabs.com /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ void WriteData_LCD(unsigned char Data) { RS_LCD = 1; /* For data RS must be high (1) */ LCD_BUS = Data; /* write data to data bus of LCD */ Toggle_Enable_Pin_LCD(); }// � www.IbrahimLabs.com /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ void WriteString_LCD(const char *String) { while(*String) { WriteData_LCD(*String++); /* Display data untill string ends */ } } /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ unsigned char MoveCursorToPosition(unsigned char Address) { /* valid addresses are for line one 0x80 and line two are 0xC0 */ if ((Address >= 0x80 && Address <= 0xA8) || (Address >= 0xC0 && Address <= 0xE8)) { WriteCmd_LCD(Address); return 1; } else return 0; }