help me convert 8 bit LCD to 4 LCD

[alagbari88]

this is my all code if any one have how to convert tell me ,this code write for arduino

 

 

/*

 * AAGT_Spectrophotometer.c

 *

 * Created: 02/09/2013 10:19:50 ?

 *  Author:  alagbari88

 */ 

 

# define F_CPU 1000000UL 

#include <avr/io.h>

#include <util/delay.h>

#include <string.h>

#include <avr/interrupt.h>

 

 

 

 

#define lcd PORTB

#define rs PD5

#define rw PD6

#define en PD7

void lcdstring (char *string);

void init_ports(void);

void init_interrupts (void);

void adc_init(void);

unsigned int adc_read(void);

void adc_conversion(uint16_t);

void lcd_init(void);

void lcdcmd(unsigned char);

void lcddata(unsigned char);

void lcddata1(unsigned char);

void lcdcmd1(unsigned char);

uint16_t adc_out;

 

int main(void)

{

 

 

init_ports();

lcd_init();

 

lcdcmd(0x01);

lcdcmd(0x81);

lcdcmd(0x0C);

lcdcmd(0x0E); // cursor ON

lcdstring(“><AAGT”);

lcdcmd(0x0C);

lcdcmd(0x88);

lcdstring(“BIOMEDICAL><“);

lcdcmd(0x0C);

lcdcmd(0xC5);

lcdstring(“Inexpensive”);

lcdcmd(0x96);

lcdstring(“Spectrophotometer”);

lcdcmd(0xD4);

lcdstring(“ver1.1.2”);

lcdcmd(0xE1);

lcdstring(“sep2013”);

_delay_ms(2000);

lcdcmd(0x01);

lcdcmd(0x80);

lcdstring(“Please select a test”);

lcdcmd(0xC0);

lcdstring(“(1)HBC”);

lcdcmd(0x9A);

lcdstring(“(2)RBC”);

init_interrupts();

while(1)

{

 

 

 

}

 

}

 

void init_ports(void)

{

 

DDRD= 0xE0;

DDRB= 0xFF;

DDRC= 0x30;

PORTC= 0x00;

}

 

void init_interrupts()

{

cli();

 

EICRA=0x0A;

EIMSK=0x03;

EIFR=0x03;

 

sei();

}

ISR (INT0_vect)

{

PORTC= 0x10;

//_delay_ms(2000);

lcdcmd(0x01);

lcdcmd(0xC5);

lcdstring(“HBC Test”);

lcdcmd(0x97);

lcdstring(“Initializing”);

_delay_ms(300);

lcdcmd(0xA3);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA4);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA5);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA6);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA7);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0x01);

lcdcmd(0x83);

lcdstring(“**Test Result**”);

lcdcmd(0xC3);

 

 

 

while ((PORTC=0x10))

{

adc_init();

ADMUX=PORTC;

 

/* Configure timer0*/

ADMUX=(1<<REFS0);

//ADMUX=PORTA1;

//ADCSRA=(1<<ADEN)|(1<<ADSC);

//ADMUX=1;ADCSRA=(1<<ADPS0)|(1<<ADIE)|(1<<ADATE);

TCCR0A=(5<<CS00);

TIMSK0=(1<<TOIE0);

ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADPS0)|(1<<ADIE)|(1<<ADATE);

PORTC=0x00;

DDRB &= ~(1 << DDRC); // TURN OFF LED

sei();

 

 

}

 

 

}

/***** interrupt service routine for INT1 ******/

ISR (INT1_vect)

{

 

PORTC= 0x20;

//_delay_ms(2000);

lcdcmd(0x01);

lcdcmd(0xC5);

lcdstring(“RBC Test”);

lcdcmd(0x97);

lcdstring(“Initializing”);

_delay_ms(300);

lcdcmd(0xA3);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA4);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA5);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA6);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0xA7);

lcdstring(“>”);

_delay_ms(300);

lcdcmd(0x01);

lcdcmd(0x83);

lcdstring(“**Test Result**”);

lcdcmd(0xC3);

lcdstring(“RBC=”);

 

 

while ((PORTC=0x20))

{

adc_init();

ADMUX=PORTC1;

 

/* Configure timer0*/

ADMUX=(1<<REFS0);

//ADMUX=PORTA1;

//ADCSRA=(1<<ADEN)|(1<<ADSC);

//ADMUX=1;ADCSRA=(1<<ADPS0)|(1<<ADIE)|(1<<ADATE);

TCCR0A=(5<<CS00);

TIMSK0=(1<<TOIE0);

ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADPS0)|(1<<ADIE)|(1<<ADATE)|(1<<ADTS0);

PORTC= 0x00;

DDRB &= ~(1 << DDRC); // TURN OFF LED

sei();

 

}

 

}

 

 

void adc_init() // ADC configuration

{

//ADMUX=1;

//Vref=AVcc

// ADSC=1 ADC Enable

// ADPS[2:0]=111, prescaler=128

// ADIE=1, ADC interrupt Enable

//ADATE=1, ADC Auto Triggering Enable

TCCR0A=(5<<CS00);

TIMSK0=(1<<TOIE0);

 

//ADTS[2:0]= 100 , Timer0 overflow select as trigger source

 

}

ISR(ADC_vect)

{

 

adc_conversion((ADC));

 

}

ISR(TIMER0_OVF_vect)

{

 

}

void adc_conversion(uint16_t adc_out)

{

 

 

 

unsigned int adc_out1;

int i=0;

 

char position=0xCB;

for(i=0;i<;i++)

{

 

adc_out1=adc_out%10;

adc_out=adc_out/10;

lcdcmd1(position);

lcddata1(48+adc_out1);

position–;

}

lcdcmd(0xCC);

lcdstring(” ug/mL”);

lcdcmd(0xD4);

lcdstring(“for menu press RESET”);

 

 

}

void lcd_init() // fuction for LCD initialization

{

lcdcmd(0x38);

lcdcmd(0x0C);

lcdcmd(0x01);

lcdcmd(0x06);

lcdcmd(0x80);

}

 

void lcdcmd(unsigned char cmd)

{

lcd=cmd;

PORTD=(0<<rs)|(0<<rw)|(1<<en);

_delay_ms(50);

PORTD=(0<<rs)|(0<<rw)|(0<<en);

 

}

 

 

void lcddata(unsigned char data)

{

lcd=data;

PORTD=(1<<rs)|(0<<rw)|(1<<en);

_delay_ms(50);

PORTD=(1<<rs)|(0<<rw)|(0<<en);

}

 

void lcdcmd1(unsigned char cmd)

{

lcd=cmd;

PORTD=(0<<rs)|(0<<rw)|(1<<en);

_delay_ms(5);

PORTD=(0<<rs)|(0<<rw)|(0<<en);

 

}

 

 

void lcddata1(unsigned char data)

{

lcd=data;

PORTD=(1<<rs)|(0<<rw)|(1<<en);

_delay_ms(5);

PORTD=(1<<rs)|(0<<rw)|(0<<en);

}

void lcdstring (char *string)

{

lcdcmd(0x0C);

while (*string)

lcddata(*string++);

}

[AJISH ALFRED]

Hi,

Your question is not so clear, are you looking for a 4-bit lcd code for arduino? The code which you’ve posted is defenitely not written for arduino.

[alagbari88]

i will tell u , this code for lcd 8 bit , i need to convert 8 bit lcd to 4 bit lcd this 

this code function for lcd 8 bit i need to 4 bit for 328p 

 

void lcd_init() // fuction for LCD initialization

{

lcdcmd(0x38);

lcdcmd(0x0C);

lcdcmd(0x01);

lcdcmd(0x06);

lcdcmd(0x80);

}

 

void lcdcmd(unsigned char cmd)

{

lcd=cmd;

PORTD=(0<<rs)|(0<<rw)|(1<<en);

_delay_ms(50);

PORTD=(0<<rs)|(0<<rw)|(0<<en);

 

}

 

 

void lcddata(unsigned char data)

{

lcd=data;

PORTD=(1<<rs)|(0<<rw)|(1<<en);

_delay_ms(50);

PORTD=(1<<rs)|(0<<rw)|(0<<en);

}

 

void lcdcmd1(unsigned char cmd)

{

lcd=cmd;

PORTD=(0<<rs)|(0<<rw)|(1<<en);

_delay_ms(5);

PORTD=(0<<rs)|(0<<rw)|(0<<en);

 

}

 

 

void lcddata1(unsigned char data)

{

lcd=data;

PORTD=(1<<rs)|(0<<rw)|(1<<en);

_delay_ms(5);

PORTD=(1<<rs)|(0<<rw)|(0<<en);

}

void lcdstring (char *string)

{

lcdcmd(0x0C);

while (*string)

lcddata(*string++);

}

 

 

[AJISH ALFRED]

Hi,

Just download the arduino IDE. In the examples there is a code for 4 bit LCD interfacing. Conversion of one code to another dosen’t sounds good, better you write a new code.

[Author]

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