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/******************************************************************************
eXtreme Electronics xAPI(TM)
xAPI is a Powerful but easy to use C library to program the
xBoard(TM)series of AVR development board. The library has support
for commonly use taskslike:
*LCD interfacing*MUXED 7 segment displays.*Remote Control*Serial
Communication*DC Motor Controls with Speed Control*Analog
Measurement for Sensor Interface.*Temperature Measurement.*I2C
Communication.*EEPROM Interface*Real Time Clock (RTC Interface)
The APIs are highly documented and easy to use even by a
beginner.
For More Info Log On towww.eXtremeElectronics.co.in
Copyright 20082010 eXtreme Electronics India
LCD Core
This module is used for interfacing with Standard Alpha Numeric
LCD Modules.For More information please see supplied tutorials and
videos.
NOTICE
NO PART OF THIS WORK CAN BE COPIED, DISTRIBUTED OR PUBLISHED
WITHOUT A
WRITTEN PERMISSION FROM EXTREME ELECTRONICS INDIA. THE LIBRARY,
NOR ANY PARTOF IT CAN BE USED IN COMMERCIAL APPLICATIONS. IT IS
INTENDED TO BE USED FORHOBBY, LEARNING AND EDUCATIONAL PURPOSE
ONLY. IF YOU WANT TO USE THEM INCOMMERCIAL APPLICATION PLEASE WRITE
TO THE AUTHOR.
WRITTEN BY:AVINASH [email protected]
*******************************************************************************/
#include
#include #include
#include "lcd.h"
//Custom Charset support#include "custom_char.h"
#define LCD_DATA_PORT PORT(LCD_DATA)#define LCD_E_PORT
PORT(LCD_E)#define LCD_RS_PORT PORT(LCD_RS)#define LCD_RW_PORT
PORT(LCD_RW)
#define LCD_DATA_DDR DDR(LCD_DATA)#define LCD_E_DDR
DDR(LCD_E)#define LCD_RS_DDR DDR(LCD_RS)#define LCD_RW_DDR
DDR(LCD_RW)
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#define LCD_DATA_PIN PIN(LCD_DATA)
#define SET_E() (LCD_E_PORT|=(1
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//SEND
CLEAR_E();
_delay_us(1); //tEL
LCDBusyLoop();}
void LCDBusyLoop(){
//This function waits till lcd is BUSY
uint8_t busy,status=0x00,temp;
//Change Port to input type because we are reading
dataLCD_DATA_DDR&=(~(0x0fLCD_DATA_POS);status=statusLCD_DATA_POS);temp&=0x0F;
status=status|temp;
busy=status & 0b10000000;
_delay_us(0.5);CLEAR_E();_delay_us(1); //tEL
}while(busy);
CLEAR_RW(); //write mode//Change Port to
outputLCD_DATA_DDR|=(0x0F
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void LCDInit(uint8_t style){
/*****************************************************************
This function Initializes the lcd modulemust be called before
calling lcd related functions
Arguments:style = LS_BLINK,LS_ULINE(can be "OR"ed for
combination)LS_BLINK :The cursor is blinking typeLS_ULINE :Cursor
is "underline" type else "block" type
*****************************************************************/
//After power on Wait for LCD to Initialize_delay_ms(30);
//Set IO PortsLCD_DATA_DDR|=(0x0F
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Their are 8 custom char in the LCD they can be defined using"LCD
Custom Character Builder" PC Software.
You can print custom character using the % symbol. For exampleto
print custom char number 0 (which is a degree symbol), youneed to
write
LCDWriteString("Temp is 30%0C");^^
|> %0 will
So it will be printed like.
Temp is 30C
In the same way you can insert any syblom numbered 07
*****************************************************************/while(*msg!=\0)
{//Custom Char Supportif(*msg==%){
msg++;int8_t cc=*msg0;
if(cc>=0 && cc
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i;}if(field_length==1)
while(str[j]==0) j++;else
j=5field_length;
if(val
