Lcd connection to the microcontroller AVR

For a start, write a program to be shown on the display. To open the Code Vision AVR, create a new project. Tab LCD select a port which is connected with the display.

I connected to port D, choose File -> Creative Save and Exit. Indicate, where we store the files and look at the code of the program. Next to output a string, we need to add a few lines of code

#include <mega8.h> 
 
// Alphanumeric LCD Module functions 
#asm 
.equ __lcd_port=0x12 ;PORTD is set 
#endasm 
#include <lcd.h> 
 
// Declare your global variables here 
void main(void) 
{ 
// Declare your local variables here 
char *buffer_Lcd="Hello"; //Create the output string  
 
// Input/Output Ports initialization 
// Port B initialization 
PORTB=0x00; 
DDRB=0x00; 
 
// Port C initialization 
PORTC=0x00; 
DDRC=0x00; 
 
// Port D initialization 
PORTD is set=0x00; 
DDRD=0x00; 
 
// Timer/Counter 0 initialization 
// Clock source: System Clock 
// Clock value: Timer 0 Stopped 
TCCR0=0x00; 
TCNT0=0x00; 
 
// Timer/Counter 1 initialization 
// Clock source: System Clock 
// Clock value: Timer1 Stopped 
// Mode: Normal top=FFFFh 
// OC1A output: Discon. 
// OC1B output: Discon. 
// Noise Canceler: Off 
// Input Capture on Falling Edge 
// Timer1 Overflow Interrupt: Off 
// Input Capture Interrupt: Off 
// Compare A Match Interrupt: Off 
// Compare B Match Interrupt: Off 
TCCR1A=0x00; 
TCCR1B=0x00; 
TCNT1H=0x00; 
TCNT1L=0x00; 
ICR1H=0x00; 
ICR1L=0x00; 
OCR1AH=0x00; 
OCR1AL=0x00; 
OCR1BH=0x00; 
OCR1BL=0x00; 
 
// Timer/Counter 2 initialization 
// Clock source: System Clock 
// Clock value: Timer2 Stopped 
// Mode: Normal top=FFh 
// OC2 output: Disconnected 
ASSR=0x00; 
TCCR2=0x00; 
TCNT2=0x00; 
OCR2=0x00; 
 
// External Interrupt(s) initialization 
// INT0: Off 
// INT1: Off 
MCUCR=0x00; 
 
// The Timer(s)/Counter(s) Interrupt(s) initialization 
TIMSK=0x00; 
 
// Analog Comparator initialization 
// Analog Comparator: Off 
// Analog Comparator Input Capture by the Timer/Counter 1: Off 
ACSR=0x80; 
SFIOR=0x00; 
 
// LCD module initialization 
lcd_init(16); 
lcd_gotoxy(0, 0); // Translate the cursor to the first character of the first line 
 
lcd_puts(buffer_Lcd); // Print the line  
 
while (1) 
{ }; 
}

Function	Ads
lcd_init(количество_символов_в_строке)	Initializes the LCD with the entered number of characters per line.
lcd_gotoxy(x, y)	moves the cursor to the point (x, y).
lcd_clear()	Cleans LCD
lcd_puts(char *stroka)	Displays an array of characters
lcd_putchar(char simvol)	Displays a single character

Table 1. Library functions Lcd.h for work with display now let's make the conclusions of the display.

Lcd connection to the microcontroller AVR

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