Touchscreen program using AVR

 #include #include #include #include #include #include #include #include

#define SCLK 0 #define SDIN 1 #define DC

2

#define SCE

3

#define RST

4

void lcd_cmd(char); void lcd_data(char); void lcd_clear(void); void lcd_init(void); void lcd_string(char*ptr); void lcd_position(char); void lcd_gotoxy(char,char); void welcome_note(void);

void usart_init(void); void usart_string(char *str); void usart_transmit(char dat);

void touchscreen_scan(void);

void modem_chk(void); void condition_chk(void); void network_init(void); void poweron_rtc(void); void poweron_rtcedit(void); void rtc_read(void); void calling_fun(void); void dial_fun(void); void incoming_chk(void); void display_innum(void); void send_sms_fun(void); void sms_read_fun(void);

int x,y,l,l1;

//for touch screen data receiving

char b[100],a[10],dial[20],incomnum[20]; char Receivedbyte,touchrecv,touchstore; int ts,k,start,d,num,fkey=0,fring=0,fans; char frtc=0; /******************************************************/ char ltab[96][5]={ { 0x00, 0x00, 0x00, 0x00, 0x00 },

//sp

{ 0x00, 0x00, 0x2f, 0x00, 0x00 },

// !

{ 0x00, 0x07, 0x00, 0x07, 0x00 },

// "

{ 0x14, 0x7f, 0x14, 0x7f, 0x14 },

// #

{ 0x24, 0x2a, 0x7f, 0x2a, 0x12 },

// $

{ 0xc4, 0xc8, 0x10, 0x26, 0x46 },

// %

{ 0x36, 0x49, 0x55, 0x22, 0x50 },

// &

{ 0x00, 0x05, 0x03, 0x00, 0x00 },

// '

{ 0x00, 0x1c, 0x22, 0x41, 0x00 },

// (

{ 0x00, 0x41, 0x22, 0x1c, 0x00 },

// )

{ 0x14, 0x08, 0x3E, 0x08, 0x14 },

// *

{ 0x08, 0x08, 0x3E, 0x08, 0x08 },

// +

{ 0x00, 0x00, 0x50, 0x30, 0x00 },

// ,

{ 0x10, 0x10, 0x10, 0x10, 0x10 },

// -

{ 0x00, 0x60, 0x60, 0x00, 0x00 },

// .

{ 0x20, 0x10, 0x08, 0x04, 0x02 },

// /

{ 0x3E, 0x51, 0x49, 0x45, 0x3E },

// 0

{ 0x00, 0x42, 0x7F, 0x40, 0x00 },

// 1

{ 0x42, 0x61, 0x51, 0x49, 0x46 },

// 2

{ 0x21, 0x41, 0x45, 0x4B, 0x31 },

// 3

{ 0x18, 0x14, 0x12, 0x7F, 0x10 },

// 4

{ 0x27, 0x45, 0x45, 0x45, 0x39 },

// 5

{ 0x3C, 0x4A, 0x49, 0x49, 0x30 },

// 6

{ 0x01, 0x71, 0x09, 0x05, 0x03 },

// 7

{ 0x36, 0x49, 0x49, 0x49, 0x36 },

// 8

{ 0x06, 0x49, 0x49, 0x29, 0x1E },

// 9

{ 0x00, 0x36, 0x36, 0x00, 0x00 },

// :

{ 0x00, 0x56, 0x36, 0x00, 0x00 },

// ;

{ 0x08, 0x14, 0x22, 0x41, 0x00 },

// <

{ 0x14, 0x14, 0x14, 0x14, 0x14 },

// =

{ 0x00, 0x41, 0x22, 0x14, 0x08 },

// >

{ 0x02, 0x01, 0x51, 0x09, 0x06 },

// ?

{ 0x32, 0x49, 0x59, 0x51, 0x3E },

// @

{ 0x7E, 0x11, 0x11, 0x11, 0x7E },

// A

{ 0x7F, 0x49, 0x49, 0x49, 0x36 },

// B

{ 0x3E, 0x41, 0x41, 0x41, 0x22 },

// C

{ 0x7F, 0x41, 0x41, 0x22, 0x1C },

// D

{ 0x7F, 0x49, 0x49, 0x49, 0x41 },

// E

{ 0x7F, 0x09, 0x09, 0x09, 0x01 },

// F

{ 0x3E, 0x41, 0x49, 0x49, 0x7A },

// G

{ 0x7F, 0x08, 0x08, 0x08, 0x7F },

// H

{ 0x00, 0x41, 0x7F, 0x41, 0x00 },

// I

{ 0x20, 0x40, 0x41, 0x3F, 0x01 },

// J

{ 0x7F, 0x08, 0x14, 0x22, 0x41 },

// K

{ 0x7F, 0x40, 0x40, 0x40, 0x40 },

// L

{ 0x7F, 0x02, 0x0C, 0x02, 0x7F },

// M

{ 0x7F, 0x04, 0x08, 0x10, 0x7F },

// N

{ 0x3E, 0x41, 0x41, 0x41, 0x3E },

// O

{ 0x7F, 0x09, 0x09, 0x09, 0x06 },

// P

{ 0x3E, 0x41, 0x51, 0x21, 0x5E },

// Q

{ 0x7F, 0x09, 0x19, 0x29, 0x46 },

// R

{ 0x46, 0x49, 0x49, 0x49, 0x31 },

// S

{ 0x01, 0x01, 0x7F, 0x01, 0x01 },

// T

{ 0x3F, 0x40, 0x40, 0x40, 0x3F },

// U

{ 0x1F, 0x20, 0x40, 0x20, 0x1F },

// V

{ 0x3F, 0x40, 0x38, 0x40, 0x3F },

// W

{ 0x63, 0x14, 0x08, 0x14, 0x63 },

// X

{ 0x07, 0x08, 0x70, 0x08, 0x07 },

// Y

{ 0x61, 0x51, 0x49, 0x45, 0x43 },

// Z

{ 0x00, 0x7F, 0x41, 0x41, 0x00 },

// [

{ 0x55, 0x2A, 0x55, 0x2A, 0x55 },

// 55

{ 0x00, 0x41, 0x41, 0x7F, 0x00 },

// ]

{ 0x04, 0x02, 0x01, 0x02, 0x04 },

// ^

{ 0x40, 0x40, 0x40, 0x40, 0x40 },

// _

{ 0x00, 0x01, 0x02, 0x04, 0x00 },

// '

{ 0x20, 0x54, 0x54, 0x54, 0x78 },

// a

{ 0x7F, 0x48, 0x44, 0x44, 0x38 },

// b

{ 0x38, 0x44, 0x44, 0x44, 0x20 },

// c

{ 0x38, 0x44, 0x44, 0x48, 0x7F },

// d

{ 0x38, 0x54, 0x54, 0x54, 0x18 },

// e

{ 0x08, 0x7E, 0x09, 0x01, 0x02 },

// f

{ 0x0C, 0x52, 0x52, 0x52, 0x3E },

// g

{ 0x7F, 0x08, 0x04, 0x04, 0x78 },

// h

{ 0x00, 0x44, 0x7D, 0x40, 0x00 },

// i

{ 0x20, 0x40, 0x44, 0x3D, 0x00 },

// j

{ 0x7F, 0x10, 0x28, 0x44, 0x00 },

// k

{ 0x00, 0x41, 0x7F, 0x40, 0x00 },

// l

{ 0x7C, 0x04, 0x18, 0x04, 0x78 },

// m

{ 0x7C, 0x08, 0x04, 0x04, 0x78 },

// n

{ 0x38, 0x44, 0x44, 0x44, 0x38 },

// o

{ 0x7C, 0x14, 0x14, 0x14, 0x08 },

// p

{ 0x08, 0x14, 0x14, 0x18, 0x7C },

// q

{ 0x7C, 0x08, 0x04, 0x04, 0x08 },

// r

{ 0x48, 0x54, 0x54, 0x54, 0x20 },

// s

{ 0x04, 0x3F, 0x44, 0x40, 0x20 },

// t

{ 0x3C, 0x40, 0x40, 0x20, 0x7C },

// u

{ 0x1C, 0x20, 0x40, 0x20, 0x1C },

// v

{ 0x3C, 0x40, 0x30, 0x40, 0x3C },

// w

{ 0x44, 0x28, 0x10, 0x28, 0x44 },

// x

{ 0x0C, 0x50, 0x50, 0x50, 0x3C },

// y

{ 0x44, 0x64, 0x54, 0x4C, 0x44 },

// z

};

/*************************************/ typedef struct { int x; int y;

}touch;

touch Get_Touch_Coordinate(void); /*************************************/ int main (void) { DDRC = 0xFF; lcd_init(); lcd_clear(); welcome_note();

usart_init(); modem_chk(); poweron_rtc();

a[ts]=0x0a; poweron_rtcedit(); network_init();

a[ts]=0x0a; d=0;

lcd_gotoxy(0x44,0x80); frtc=0; while(1) {

touchscreen_scan(); k=0;

incoming_chk(); if(fring==1) { display_innum(); } if(fkey==1) { frtc=1; calling_fun(); } if(frtc==0) { rtc_read();

} send_sms_fun(); _delay_ms(100); } } /*************************************/ void display_innum(void) { fring=0; lcd_gotoxy(0x44,0x80); lcd_string("InCom Call... ");

k=0; usart_string("AT+CLIP=1"); usart_transmit(0x0D); _delay_ms(500);

k=21; num=0; do { incomnum[num]=b[k]; k++; num++; } while(b[k]!=0x2c);

lcd_gotoxy(0x45,0x80); num=0; do { lcd_position(incomnum[num]); num++; } while(incomnum[num]!=0x22); _delay_ms(1000); frtc=0; } /*************************************/ void calling_fun(void) { fkey=0;

if(a[ts]==0x2B) { dial[d]=';';

d++; dial[d]=0x0D; d++; dial[d]=0x00;

dial_fun(); }

if(a[ts]==0x2D) { lcd_gotoxy(0x44,0x80); lcd_string("Call End...

");

lcd_gotoxy(0x45,0x80); lcd_string("

usart_string("ATH"); usart_transmit(0x0D); _delay_ms(500);

d=0; while(d==15) {

dial[d]=0;

d++; } d=0; _delay_ms(100);

");

lcd_gotoxy(0x44,0x80); lcd_string("

");

lcd_gotoxy(0x44,0x80); frtc=0; }

else { dial[d]=a[ts]; d++;

}

} /*************************************/ void dial_fun(void) { k=0; usart_string("AT+SPEAKER=1"); usart_transmit(0x0D); _delay_ms(100);

lcd_gotoxy(0x44,0x80); lcd_string("Calling...

lcd_gotoxy(0x45,0x80); usart_string("ATD"); _delay_ms(10); d=0; while(dial[d]!=0x00)

");

{ usart_transmit(dial[d]); lcd_position(dial[d]); _delay_ms(10); d++; }

} /*************************************/ void incoming_chk(void) { k=2; if((b[2]=='R')&(b[3]=='I')&(b[4]=='N')&(b[5]=='G')) { fring=1; //lcd_gotoxy(0x43,0x80); //lcd_string("ring test

");

} else { k=0; } } /*************************************/ void send_sms_fun(void) {

} /*************************************/ void rtc_read(void)

{ k=0; usart_string("AT+CCLK?"); usart_transmit(0x0D); _delay_ms(1000);

lcd_gotoxy(0x42,0x95); k=10; do { lcd_position(b[k]); k++; } while(b[k]!=0x2c); k++;

lcd_gotoxy(0x40,0xA5); do { lcd_position(b[k]); k++; } while(b[k]!=0x22); lcd_gotoxy(0x44,0x80); } /*************************************/ void touchscreen_scan(void) { touch TS_val;

TS_val=Get_Touch_Coordinate();

if((TS_val.x>=800)&&(TS_val.x<=915)) if((TS_val.x>=800)&&(TS_v al.x<=915))

//FIRST ROW

{ if((TS_val.y>=877)&&(TS_val.y<=938))lcd_position('1'); else if((TS_val.y>=790)&&(TS_val.y<=856))lcd_position('2'); else if((TS_val.y>=711)&&(TS_val.y<=777))lcd_position('3'); else if((TS_val.y>=627)&&(TS_val.y<=691))lcd_position('4'); else if((TS_val.y>=553)&&(TS_val.y<=606))lcd_position('5'); else if((TS_val.y>=465)&&(TS_val.y<=526))lcd_position('6'); else if((TS_val.y>=384)&&(TS_val.y<=445))lcd_position('7'); else if((TS_val.y>=295)&&(TS_val.y<=364))lcd_position('8'); else if((TS_val.y>=215)&&(TS_val.y<=295))lcd_position('9'); else if((TS_val.y>=134)&&(TS_val.y<=194))lcd_position('0'); fkey=1; }

if((TS_val.x>=660)&&(TS_val.x<=777)) if((TS_val.x>=660)&&(TS_val .x<=777))

//SECOND ROW

{ if((TS_val.y>=877)&&(TS_val.y<=938))lcd_position('Q'); else if((TS_val.y>=790)&&(TS_val.y<=856))lcd_position('W'); else if((TS_val.y>=711)&&(TS_val.y<=777))lcd_position('E'); else if((TS_val.y>=627)&&(TS_val.y<=691))lcd_position('R'); else if((TS_val.y>=553)&&(TS_val.y<=606))lcd_position('T'); else if((TS_val.y>=465)&&(TS_val.y<=526))lcd_position('Y'); else if((TS_val.y>=384)&&(TS_val.y<=445))lcd_position('U'); else if((TS_val.y>=295)&&(TS_val.y<=364))lcd_position('I'); else if((TS_val.y>=215)&&(TS_val.y<=295))lcd_position('O'); else if((TS_val.y>=134)&&(TS_val.y<=194))lcd_position('P'); fkey=1;

}


//THIRD ROW

{ if((TS_val.y>=840)&&(TS_val.y<=895))lcd_position('A'); else if((TS_val.y>=756)&&(TS_val.y<=815))lcd_position('S'); else if((TS_val.y>=676)&&(TS_val.y<=735))lcd_position('D'); else if((TS_val.y>=601)&&(TS_val.y<=653))lcd_position('F'); else if((TS_val.y>=508)&&(TS_val.y<=575))lcd_position('G'); else if((TS_val.y>=426)&&(TS_val.y<=485))lcd_position('H'); else if((TS_val.y>=345)&&(TS_val.y<=401))lcd_position('J'); else if((TS_val.y>=265)&&(TS_val.y<=323))lcd_position('K'); else if((TS_val.y>=185)&&(TS_val.y<=235))lcd_position('L'); fkey=1; }


//FOURTH ROW

{ if((TS_val.y>=852)&&(TS_val.y<=933))lcd_position('+'); else if((TS_val.y>=763)&&(TS_val.y<=812))lcd_position('Z'); else if((TS_val.y>=671)&&(TS_val.y<=735))lcd_position('X'); else if((TS_val.y>=591)&&(TS_val.y<=651))lcd_position('C'); else if((TS_val.y>=508)&&(TS_val.y<=571))lcd_position('V'); else if((TS_val.y>=426)&&(TS_val.y<=485))lcd_position('B'); else if((TS_val.y>=345)&&(TS_val.y<=401))lcd_position('N'); else if((TS_val.y>=265)&&(TS_val.y<=325))lcd_position('M'); else if((TS_val.y>=145)&&(TS_val.y<=225))lcd_position('-'); fkey=1; }


//FIFTH ROW

{ if((TS_val.y>=847)&&(TS_val.y<=933))lcd_position('/'); else if((TS_val.y>=748)&&(TS_val.y<=830))lcd_position(':'); else if((TS_val.y>=353)&&(TS_val.y<=720))lcd_position(' '); else if((TS_val.y>=145)&&(TS_val.y<=325))lcd_clear(); fkey=1; } else {} _delay_ms(500); } /**************************************/ touch Get_Touch_Coordinate(void) { touch val;

DDRA=0x03; cbi(PORTA,0); sbi(PORTA,1);

_delay_ms(10); ADMUX = 0x03; ADCSRA =0XC5;

while(ADCSRA & (1 << ADSC)); l = ADCL; y = ADCH & 0x03; y = y << 8; y = y + l;

DDRA = 0x0C; cbi(PORTA,2); sbi(PORTA,3);

_delay_ms(10); ADMUX

= 0x01;

ADCSRA = 0xC5;

while(ADCSRA & (1 << ADSC)); l1 = ADCL; x = ADCH & 0x03; x = x << 8; x = x + l1;

val.x=x; val.y=y;

return val; } /**************************************/ ISR(USART_RXC_vect) { Receivedbyte = UDR; b[k]=Receivedbyte; k++; } /**************************************/ void poweron_rtc(void) {

k=0; usart_string("AT+CCLK?"); usart_transmit(0x0D); _delay_ms(100); lcd_clear(); lcd_gotoxy(0x42,0x95); k=10; do { lcd_position(b[k]); k++; } while(b[k]!=0x2c); k++;

lcd_gotoxy(0x40,0xA5); do { lcd_position(b[k]); k++; } while(b[k]!=0x22); } /**************************************/ void poweron_rtcedit(void) { k=0; usart_string("AT+CCLK="); usart_transmit(0x22);

lcd_gotoxy(0x42,0x95); do { touchscreen_scan(); if((a[ts]>=0x20)&&(a[ts]<=0x59)) { if(a[ts]==0x20) {

} else { //lcd_position(a[ts]); usart_transmit(a[ts]); a[ts]=0x0a; } } } while(a[ts]!=0x20); a[ts]=0x0a;

usart_transmit(0x2c); lcd_gotoxy(0x40,0xA5); a[ts]=0x0a; do { touchscreen_scan(); if((a[ts]>=0x20)&&(a[ts]<=0x59)) { if(a[ts]==0x20)

{

} else { //lcd_position(a[ts]); usart_transmit(a[ts]); a[ts]=0x0a; } } } while(a[ts]!=0x20);

usart_transmit(0x22); usart_transmit(0x0D); _delay_ms(500);

} /**************************************/ void network_init(void) { k=0; usart_string("AT+COPS=0"); usart_transmit(0x0D); _delay_ms(100);

k=0; usart_string("AT+COPS=3,0"); usart_transmit(0x0D); _delay_ms(100);

k=0; usart_string("AT+COPS?"); usart_transmit(0x0D); _delay_ms(100);

lcd_gotoxy(0x41,0x9A); k=14; do { lcd_position(b[k]); k++; } while(b[k]!=0x22); } /**************************************/ void modem_chk(void) { do { k=0; usart_string("AT"); usart_transmit(0x0D); _delay_ms(100);

condition_chk(); } while(start!=1); _delay_ms(1000); }

/**************************************/ void condition_chk(void) { if((b[2]=='O')&(b[3]=='K')) { lcd_clear(); lcd_string("Modem Tested"); _delay_ms(500); start=1; } else { lcd_gotoxy(0x40,0x80); lcd_string("Modem Testing"); start=0; } } /**************************************/ void usart_string(char *str) { while(*str) { usart_transmit(*str); str++; } k=0; } /**************************************/ void usart_transmit(char dat) {

while(!(UCSRA & 0x20)); UDR = dat; } /**************************************/ void usart_init(void) { UCSRB = 0x98; UCSRC = 0x06; UBRRL = 0x67; UBRRH = 0x00; sei(); } /**************************************/ void welcome_note(void) { lcd_string("************"); lcd_gotoxy(0x41,0x99); lcd_string("RaviTeja"); lcd_gotoxy(0x42,0x99); lcd_string("UDAY KIRAN"); lcd_gotoxy(0x43,0x80); lcd_string("************"); _delay_ms(3000); lcd_clear();

} /**************************************/ void lcd_string(char*ptr) { while(*ptr)

{ lcd_position(*ptr); ptr++; } } /**************************************/ void lcd_position(char data) { touchrecv=data; unsigned char pos; unsigned int n; pos=data-0x20; for(n=0;n<5;n++) { lcd_data(ltab[pos][n]); } lcd_data(0x00); a[ts]=touchrecv;

} /*************************************/ void lcd_init(void) { sbi(PORTC,RST); _delay_us(5); cbi(PORTC,RST); _delay_us(5); sbi(PORTC,RST); lcd_cmd(0x21); lcd_cmd(0x13);

lcd_cmd(0x06); lcd_cmd(0xc8); lcd_cmd(0x20); lcd_cmd(0x0c); lcd_cmd(0x40); lcd_cmd(0x80); } /*************************************/ void lcd_cmd(char temp) { unsigned int i; cbi(PORTC,DC); cbi(PORTC,SCE); cbi(PORTC,SCLK); for(i=0;i<8;i++) { if(temp&0x80) sbi(PORTC,SDIN); else cbi(PORTC,SDIN); sbi(PORTC,SCLK); _delay_us(5); cbi(PORTC,SCLK); temp=temp<<1; } } /*************************************/ void lcd_data(char temp) { unsigned int i;

sbi(PORTC,DC); cbi(PORTC,SCE); cbi(PORTC,SCLK); for(i=0;i<8;i++) { if(temp&0x80) sbi(PORTC,SDIN); else cbi(PORTC,SDIN); sbi(PORTC,SCLK); _delay_us(5); cbi(PORTC,SCLK); temp=temp<<1; } } /*************************************/ void lcd_clear(void) { unsigned int j; for(j=0;j<=504;j++) { lcd_data(0x00); } lcd_gotoxy(0x40,0x80); } /*************************************/ void lcd_gotoxy(char x,char y) { lcd_cmd(x); lcd_cmd(y);

}

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Touchscreen program using AVR

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