Interfacing SIM300
#use rs232(baud=19200,xmit=pin_C6,rcv=pin_C7,parity=n,bits=8,stop=1,stream=GSM,timeout=100)
int8 sms_buffer[40],ph_number[15];
void sync()
{
fprintf(GSM,"AT\n\r");
delay_ms(100);
fprintf(GSM,"AT\n\r");
delay_ms(100);
fprintf(GSM,"AT\n\r");
delay_ms(100);
fprintf(GSM,"AT\n\r");
delay_ms(100);
}
void dial_modem()
{
int8 i=0;
fputc('A',GSM);
fputc('T',GSM);
fputc('D',GSM);
fputc(' ',GSM);
while(ph_number[i] !='\0' && i<16)
{
fputc(ph_number[i],GSM);
i++;
}
fputc(';',GSM);
fputc(0x0D,GSM);
fputc(0x0A,GSM);
}
void hang_call()
{
fputc('A',GSM);
fputc('T',GSM);
fputc('H',GSM);
fputc(0x0D,GSM);
fputc(0x0A,GSM);
}
void set_text_mode()
{
sync();
fprintf(GSM,"AT+CMGF=1\n\r");
}
int1 get_sms(int8 intex_no)
{
int8 count=0;
set_text_mode();
delay_ms(100);
fprintf(GSM,"AT+CMGR=%u\n\r",intex_no);
while(fgetc(GSM)!=0x0A);
if(fgetc(GSM)=='+')
{
while(fgetc(GSM)!='"');
while(fgetc(GSM)!='"');
while(fgetc(GSM)!='"');
do
{
ph_number[count]=fgetc(GSM);
count++;
}while(ph_number[count-1] !='"' && count<15);
ph_number[count-1]='\0';
while(fgetc(GSM)!=0x0A);
count=0;
do
{
sms_buffer[count]=fgetc(GSM);
count++;
}while(sms_buffer[count-1] !=0x0D && count<24);
sms_buffer[count-1]='\0';
delay_ms(500);
sync();
fprintf(GSM,"AT+CMGD=%u\n\r",intex_no);//delete sms
}
else
{
count=24;
}
if(count>=24)
return 0;
else
{
return 1;
}
}
void send_sms()
{
int8 array_index;
set_text_mode();
delay_ms(100);
fprintf(GSM,"AT+CMGS=");
fputc('"',GSM);
array_index=0;
while(ph_number[array_index] !='\0')
{
fputc(ph_number[array_index],GSM);
array_index++;
}
fputc('"',GSM);
fputc(0x0D,GSM);
fputc(0x0A,GSM);
while(fgetc(GSM) !=' ');
array_index=0;
while(sms_buffer[array_index] !='\0')
{
fputc(sms_buffer[array_index],GSM);
array_index++;
}
fputc(0x1A,GSM);// Ctrl-Z
delay_ms(100);
}
int8 read_strength()
{
int8 rssi[3],rssi_byte;
//output_low(PIN_A5);
fprintf(GSM,"AT+CSQ\n\r");
while(fgetc(GSM) !=' ');
//output_high(PIN_A5);
rssi[0]=fgetc(GSM) & 0x0F;
rssi[1]=fgetc(GSM) & 0x0F;
rssi_byte=rssi[0]*10;
rssi_byte=rssi_byte+rssi[1];
return rssi_byte;
}SR-87 GPS Module
#use rs232(baud=4800,xmit=PIN_C6,rcv=PIN_C7,bits=8,stop=1,parity=n,stream=GPS,force_sw)
#include<string.h>
#include<stdlib.h>
//char latitude[17],longitude[17],buffer[17];
// Read the lattitude and longitude
void get_position()
{
int8 rx_count,rx_buffer;
rx_count=0;
strcpy(buffer,"GPRMC");
do
{
rx_count=0;
output_low(PIN_A5);
while(fgetc(GPS) !='$');
while((rx_buffer=fgetc(GPS))!=',')
{
latitude[rx_count]=rx_buffer;
rx_count++;
}
latitude[rx_count]='\0';
}while(strcmp(latitude,buffer));
//*****************************************************************
while(getc(GPS)!=',');
while(getc(GPS)!=',');
rx_count=0;
do
{
rx_buffer=fgetc(GPS);
latitude[rx_count]=rx_buffer;
rx_count++;
}while(rx_buffer!=',');
latitude[rx_count]=fgetc(GPS);
rx_count++;
latitude[rx_count]='\0';
rx_buffer=fgetc(GPS);
rx_count=0;
do
{
rx_buffer=fgetc(GPS);
longitude[rx_count]=rx_buffer;
rx_count++;
}while(rx_buffer!=',');
longitude[rx_count]=fgetc(GPS);
rx_count++;
longitude[rx_count]='\0';
}
//wait untill a valid data
void get_fix()
{
int8 rx_count,rx_buffer;
rx_count=0;
strcpy(buffer,"GPRMC");
do
{
do
{
rx_count=0;
while(fgetc(GPS) !='$');
while((rx_buffer=fgetc(GPS))!=',')
{
latitude[rx_count]=rx_buffer;
rx_count++;
}
latitude[rx_count]='\0';
}while(strcmp(latitude,buffer));
while(fgetc(GPS) !=',');
rx_buffer=fgetc(GPS);
}while(rx_buffer !='A');
}Interface matrix Keypad
/Keypad connection:
#define col0 PIN_B3
#define col1 PIN_B2
#define col2 PIN_B1
#define col3 PIN_B0
#define row0 PIN_B7
#define row1 PIN_B6
#define row2 PIN_B5
#define row3 PIN_B4
#define num_col 4
// Keypad layout:
char const KEYS[4][4] = {{1,2,3,13},
{4,5,6,14},
{7,8,9,15},
{11,10,12,16}};
void init_keypad()
{
output_high(row0);
output_high(row1);
output_high(row2);
output_high(row3);
output_low(col0);
output_low(col1);
output_low(col2);
output_low(col3);
}
short int ALL_ROWS (void)
{
if (input (row0) & input (row1) & input (row2) & input (row3))
return (0);
else
return (1);
}
//Will return a key value if pressed or 0 if not
int8 get_key()
{
int8 row,col=0;
do
{
switch (col)
{
case 0 :
output_low(col0);
output_high(col1);
output_high(col2);
output_high(col3);
break;
case 1 :
output_high(col0);
output_low(col1);
output_high(col2);
output_high(col3);
break;
case 2 :
output_high(col0);
output_high(col1);
output_low(col2);
output_high(col3);
break;
case 3 :
output_high(col0);
output_high(col1);
output_high(col2);
output_low(col3);
break;
}
if(!input (row0))
row=1;
else if(!input (row1))
row=2;
else if(!input (row2))
row=3;
else if(!input (row3))
row=4;
else
row=0;
col++;
}while(!row && col<num_col);
if(row)
return KEYS[row-1][col-1];
else
return 0;
}
//function waits until any key is pressed and released.
int8 get_key_released()
{
int8 _key_temp ;
do
{
_key_temp=get_key();
}while(!_key_temp);
init_keypad();
do
{
while(ALL_ROWS());
delay_ms(50);
}
while(ALL_ROWS());
return _key_temp;
}Interfacing ADS7807
#define sclk PIN_D3
#define sdata PIN_D4
#define rc PIN_D5
#define busy PIN_D6
#define cs PIN_C5
void init_ads7807()
{
output_low(sclk);
output_high(rc);
delay_us(2);
output_high(cs);
}
int32 read_ads7807()
{
BYTE i;
int32 adc_result=0;
while(!input(busy));
output_low(rc);
delay_cycles(1);
output_low(cs);
delay_us(1);
output_high(cs);
delay_cycles(1);
output_high(rc);
while(!input(busy));
output_low(cs);
for(i=1;i<=16;++i)
{
output_high(sclk);
shift_left(&adc_result,4,input(sdata));
output_low(sclk);
}
output_high(cs);
adc_result*=7629;
return adc_result/10000;
}Interfacing MAX6952
#define max_sdi PIN_C5
#define max_sdo PIN_C4
#define max_clk PIN_C3
#define max_cs PIN_C2
const int8 user_font[120]= {0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C};
#define config_addr 0x04
#define font_addr 0x05
#define test_addr 0x07
#define plane01_addr 0x20
#define plane02_addr 0x21
#define plane03_addr 0x22
#define plane04_addr 0x23
#define plane11_addr 0x40
#define plane12_addr 0x41
#define plane13_addr 0x42
#define plane14_addr 0x43
int8 config_byte;
void write_to_6952(int8 cmd,int8 data)
{
int8 i;
int16 ser_data;
ser_data=make16(cmd,data);
//shift_right(&ser_data,2,0);
output_low(max_clk);
output_low(max_cs);
for(i=1;i<=16;++i)
{
output_bit(max_sdi,shift_left(&ser_data,2,0));
output_high(max_clk);
delay_us(10);
// if(i<16)
output_low(max_clk);
//delay_us(6);
}
output_high(max_cs);
output_low(max_clk);
}
void write_user_font()
{
int8 j;
write_to_6952(font_addr,0x80);
for(j=0;j<120;j++)
{
write_to_6952(font_addr,user_font[j]);
}
}
/*******************************************************************
if state=1,normal operation
if state=0,shutdown
if wrt=1,write to 6952,otherwise update the config_byte register
*******************************************************************/
void shutdown(int1 state, int1 wrt)
{
if(state)
config_byte |= 0x01;
else
config_byte &= 0xFE;
if(wrt)
write_to_6952(config_addr,config_byte);
}
/*******************************************************************
if state=1,enable blinking
if state=0,disable blinking
if wrt=1,write to 6952,otherwise update the config_byte register
*******************************************************************/
void blink_enable(int1 state,int1 wrt )
{
if(state)
config_byte |= 8;
else
config_byte &= 0xF7;
if( wrt )
write_to_6952(config_addr,config_byte);
}
/*************************************************************************
if state=1,put the display in test mode
if state=0,normal mode
Does not affect plane data - original display is restored when set 0.
**************************************************************************/
void display_test(int1 state )
{
if(state)
write_to_6952(test_addr,1);
else
write_to_6952(test_addr,0);
}Interfacing SM630
#define cmd_add_fingerprint 0x40
#define cmd_search_fingerprint 0x44
#define cmd_packet 0x10
#define data_packet 0x20
#define res_packet 0x30
#define res_rcv_correct 0x01
#define res_rcv_error 0x02
#define res_opr_success 0x31
#define res_finger_detected 0x32
#define res_timeout 0x33
#define res_process_fail 0x34
#define res_para_error 0x35
#define res_fingerprint_found 0x39
#define res_fingerprint_unfound 0x3A
#use rs232(baud=57600,xmit=PIN_C6,rcv=PIN_C7,bits=8,parity=n,stop=1,stream=Finger,timeout=1000)//,force_sw)
int8 cmd_buffer[10],response_buffer[15];
int8 find_checksum(int8 total_byte)
{
int8 byte_count;
int16 check_sum=0;
for(byte_count=0;byte_count<total_byte;byte_count++)
{
check_sum+=cmd_buffer[byte_count];
}
return(make8(check_sum,0));
}
void cmd_to_sm630(int8 total_byte)
{
int8 byte_count;
for(byte_count=0;byte_count<total_byte;byte_count++)
{
fputc(cmd_buffer[byte_count],Finger);
delay_us(10);
}
}
void response_from_sm630(int8 total_byte)
{
int8 byte_count;
while(fgetc(Finger)!=0x4D);
response_buffer[0]=0x4D;
for(byte_count=1;byte_count<total_byte;byte_count++)
{
response_buffer[byte_count]=fgetc(Finger);
}
}
int8 add_finger(int16 finger_id)
{
cmd_buffer[0]=0x4D; //Packet Head
cmd_buffer[1]=0x58; //Packet Head
cmd_buffer[2]=cmd_packet; //Command Packet
cmd_buffer[3]=0x03; //3 byte length
cmd_buffer[4]=cmd_add_fingerprint; //Add finger Print cmd
cmd_buffer[5]=make8(finger_id,1);//Higher byte of finger print id
cmd_buffer[6]=make8(finger_id,0);//Lower byte of finger print id
cmd_buffer[7]=find_checksum(7);//Check sum of 7 bytes
cmd_to_sm630(8);
response_from_sm630(6); //Read 6 bytes
if(response_buffer[4] == res_rcv_correct)
{
response_from_sm630(7); //Read 6 bytes
if(response_buffer[5] == res_opr_success)
{
//Display Press finger again
//lcd_goto(2,1);
//lcd_send_byte(" Press again ");
response_from_sm630(7); //Read 6 bytes
}
}
return (response_buffer[5]);
}
int8 search_finger(int16& result_id,int16 num_fingerprint)
{
output_low(PIN_A5);
cmd_buffer[0]=0x4D; //Packet Head
cmd_buffer[1]=0x58; //Packet Head
cmd_buffer[2]=cmd_packet; //Command Packet
cmd_buffer[3]=0x05; //5 byte length
cmd_buffer[4]=cmd_search_fingerprint; //Search finger Print cmd
cmd_buffer[5]=0x00; //Higher byte of Starting id
cmd_buffer[6]=0x00; //Lower byte of Starting id
cmd_buffer[7]=make8(num_fingerprint,1);//Higher byte of number of fingerprints searched
cmd_buffer[8]=make8(num_fingerprint,0);//Lower byte of number of fingerprints searched
cmd_buffer[9]=find_checksum(9);//Check sum of 9 bytes
cmd_to_sm630(10);
response_from_sm630(6); //Read 6 bytes
if(response_buffer[4] == res_rcv_correct)
{
response_from_sm630(7); //Read 7 bytes
if(response_buffer[5] == res_opr_success)
{
delay_ms(10);
response_from_sm630(6); //Read 6 bytes
//disp_response(6);
if(response_buffer[5] == res_fingerprint_found)
{
response_buffer[0]=fgetc(Finger);
response_buffer[1]=fgetc(Finger);
result_id=make16(response_buffer[0],response_buffer[1]);
}
}
}
else
response_buffer[5]=response_buffer[4];
return (response_buffer[5]);
}ADXL345 Driver
#define ADXL_SDA PIN_C4
#define ADXL_SCL PIN_C3
#define ADXL_CS PIN_C0
#use i2c(master, sda=ADXL_SDA, scl=ADXL_SCL)
void init_adxl345()
{
output_float(ADXL_SCL);
output_float(ADXL_SDA);
output_high(ADXL_CS);
}
BOOLEAN adxl345_ready()
{
int1 ack;
i2c_start(); // If the write command is acknowledged,
ack = i2c_write(0x3a); // then the device is ready.
i2c_stop();
return !ack;
}
void write_adxl345(BYTE address, BYTE data)
{
while(!adxl345_ready());
i2c_start();
i2c_write(0x3a);
i2c_write(address);
i2c_write(data);
i2c_stop();
}
BYTE read_adxl345(BYTE address)
{
BYTE data;
while(!adxl345_ready());
i2c_start();
i2c_write(0x3a);
i2c_write(address);
i2c_start();
i2c_write(0x3b);
data=i2c_read(0);
i2c_stop();
return(data);
}
int16 read_adxl345_axis(BYTE address)
{
BYTE msb,lsb;
while(!adxl345_ready());
i2c_start();
i2c_write(0x3a);
i2c_write(address);
i2c_start();
i2c_write(0x3b);
lsb=i2c_read(1);
msb=i2c_read(0);
i2c_stop();
return((msb<<8)|lsb);
}ADXL345 Driver
#define ADXL_SDA PIN_C4
#define ADXL_SCL PIN_C3
#define ADXL_CS PIN_C0
#use i2c(master, sda=ADXL_SDA, scl=ADXL_SCL)
void init_adxl345()
{
output_float(ADXL_SCL);
output_float(ADXL_SDA);
output_high(ADXL_CS);
}
BOOLEAN adxl345_ready()
{
int1 ack;
i2c_start(); // If the write command is acknowledged,
ack = i2c_write(0x3a); // then the device is ready.
i2c_stop();
return !ack;
}
void write_adxl345(BYTE address, BYTE data)
{
while(!adxl345_ready());
i2c_start();
i2c_write(0x3a);
i2c_write(address);
i2c_write(data);
i2c_stop();
}
BYTE read_adxl345(BYTE address)
{
BYTE data;
while(!adxl345_ready());
i2c_start();
i2c_write(0x3a);
i2c_write(address);
i2c_start();
i2c_write(0x3b);
data=i2c_read(0);
i2c_stop();
return(data);
}
int16 read_adxl345_axis(BYTE address)
{
BYTE msb,lsb;
while(!adxl345_ready());
i2c_start();
i2c_write(0x3a);
i2c_write(address);
i2c_start();
i2c_write(0x3b);
lsb=i2c_read(1);
msb=i2c_read(0);
i2c_stop();
return((msb<<8)|lsb);
}Interfacing SM630
#define cmd_add_fingerprint 0x40
#define cmd_search_fingerprint 0x44
#define cmd_packet 0x10
#define data_packet 0x20
#define res_packet 0x30
#define res_rcv_correct 0x01
#define res_rcv_error 0x02
#define res_opr_success 0x31
#define res_finger_detected 0x32
#define res_timeout 0x33
#define res_process_fail 0x34
#define res_para_error 0x35
#define res_fingerprint_found 0x39
#define res_fingerprint_unfound 0x3A
#use rs232(baud=57600,xmit=PIN_C6,rcv=PIN_C7,bits=8,parity=n,stop=1,stream=Finger,timeout=1000)//,force_sw)
int8 cmd_buffer[10],response_buffer[15];
int8 find_checksum(int8 total_byte)
{
int8 byte_count;
int16 check_sum=0;
for(byte_count=0;byte_count<total_byte;byte_count++)
{
check_sum+=cmd_buffer[byte_count];
}
return(make8(check_sum,0));
}
void cmd_to_sm630(int8 total_byte)
{
int8 byte_count;
for(byte_count=0;byte_count<total_byte;byte_count++)
{
fputc(cmd_buffer[byte_count],Finger);
delay_us(10);
}
}
void response_from_sm630(int8 total_byte)
{
int8 byte_count;
while(fgetc(Finger)!=0x4D);
response_buffer[0]=0x4D;
for(byte_count=1;byte_count<total_byte;byte_count++)
{
response_buffer[byte_count]=fgetc(Finger);
}
}
int8 add_finger(int16 finger_id)
{
cmd_buffer[0]=0x4D; //Packet Head
cmd_buffer[1]=0x58; //Packet Head
cmd_buffer[2]=cmd_packet; //Command Packet
cmd_buffer[3]=0x03; //3 byte length
cmd_buffer[4]=cmd_add_fingerprint; //Add finger Print cmd
cmd_buffer[5]=make8(finger_id,1);//Higher byte of finger print id
cmd_buffer[6]=make8(finger_id,0);//Lower byte of finger print id
cmd_buffer[7]=find_checksum(7);//Check sum of 7 bytes
cmd_to_sm630(8);
response_from_sm630(6); //Read 6 bytes
if(response_buffer[4] == res_rcv_correct)
{
response_from_sm630(7); //Read 6 bytes
if(response_buffer[5] == res_opr_success)
{
//Display Press finger again
//lcd_goto(2,1);
//lcd_send_byte(" Press again ");
response_from_sm630(7); //Read 6 bytes
}
}
return (response_buffer[5]);
}
int8 search_finger(int16& result_id,int16 num_fingerprint)
{
output_low(PIN_A5);
cmd_buffer[0]=0x4D; //Packet Head
cmd_buffer[1]=0x58; //Packet Head
cmd_buffer[2]=cmd_packet; //Command Packet
cmd_buffer[3]=0x05; //5 byte length
cmd_buffer[4]=cmd_search_fingerprint; //Search finger Print cmd
cmd_buffer[5]=0x00; //Higher byte of Starting id
cmd_buffer[6]=0x00; //Lower byte of Starting id
cmd_buffer[7]=make8(num_fingerprint,1);//Higher byte of number of fingerprints searched
cmd_buffer[8]=make8(num_fingerprint,0);//Lower byte of number of fingerprints searched
cmd_buffer[9]=find_checksum(9);//Check sum of 9 bytes
cmd_to_sm630(10);
response_from_sm630(6); //Read 6 bytes
if(response_buffer[4] == res_rcv_correct)
{
response_from_sm630(7); //Read 7 bytes
if(response_buffer[5] == res_opr_success)
{
delay_ms(10);
response_from_sm630(6); //Read 6 bytes
//disp_response(6);
if(response_buffer[5] == res_fingerprint_found)
{
response_buffer[0]=fgetc(Finger);
response_buffer[1]=fgetc(Finger);
result_id=make16(response_buffer[0],response_buffer[1]);
}
}
}
else
response_buffer[5]=response_buffer[4];
return (response_buffer[5]);
}Interfacing SIM300
#use rs232(baud=19200,xmit=pin_C6,rcv=pin_C7,parity=n,bits=8,stop=1,stream=GSM,timeout=100)
int8 sms_buffer[40],ph_number[15];
void sync()
{
fprintf(GSM,"AT\n\r");
delay_ms(100);
fprintf(GSM,"AT\n\r");
delay_ms(100);
fprintf(GSM,"AT\n\r");
delay_ms(100);
fprintf(GSM,"AT\n\r");
delay_ms(100);
}
void dial_modem()
{
int8 i=0;
fputc('A',GSM);
fputc('T',GSM);
fputc('D',GSM);
fputc(' ',GSM);
while(ph_number[i] !='\0' && i<16)
{
fputc(ph_number[i],GSM);
i++;
}
fputc(';',GSM);
fputc(0x0D,GSM);
fputc(0x0A,GSM);
}
void hang_call()
{
fputc('A',GSM);
fputc('T',GSM);
fputc('H',GSM);
fputc(0x0D,GSM);
fputc(0x0A,GSM);
}
void set_text_mode()
{
sync();
fprintf(GSM,"AT+CMGF=1\n\r");
}
int1 get_sms(int8 intex_no)
{
int8 count=0;
set_text_mode();
delay_ms(100);
fprintf(GSM,"AT+CMGR=%u\n\r",intex_no);
while(fgetc(GSM)!=0x0A);
if(fgetc(GSM)=='+')
{
while(fgetc(GSM)!='"');
while(fgetc(GSM)!='"');
while(fgetc(GSM)!='"');
do
{
ph_number[count]=fgetc(GSM);
count++;
}while(ph_number[count-1] !='"' && count<15);
ph_number[count-1]='\0';
while(fgetc(GSM)!=0x0A);
count=0;
do
{
sms_buffer[count]=fgetc(GSM);
count++;
}while(sms_buffer[count-1] !=0x0D && count<24);
sms_buffer[count-1]='\0';
delay_ms(500);
sync();
fprintf(GSM,"AT+CMGD=%u\n\r",intex_no);//delete sms
}
else
{
count=24;
}
if(count>=24)
return 0;
else
{
return 1;
}
}
void send_sms()
{
int8 array_index;
set_text_mode();
delay_ms(100);
fprintf(GSM,"AT+CMGS=");
fputc('"',GSM);
array_index=0;
while(ph_number[array_index] !='\0')
{
fputc(ph_number[array_index],GSM);
array_index++;
}
fputc('"',GSM);
fputc(0x0D,GSM);
fputc(0x0A,GSM);
while(fgetc(GSM) !=' ');
array_index=0;
while(sms_buffer[array_index] !='\0')
{
fputc(sms_buffer[array_index],GSM);
array_index++;
}
fputc(0x1A,GSM);// Ctrl-Z
delay_ms(100);
}
int8 read_strength()
{
int8 rssi[3],rssi_byte;
//output_low(PIN_A5);
fprintf(GSM,"AT+CSQ\n\r");
while(fgetc(GSM) !=' ');
//output_high(PIN_A5);
rssi[0]=fgetc(GSM) & 0x0F;
rssi[1]=fgetc(GSM) & 0x0F;
rssi_byte=rssi[0]*10;
rssi_byte=rssi_byte+rssi[1];
return rssi_byte;
}Interfacing MAX6952
#define max_sdi PIN_C5
#define max_sdo PIN_C4
#define max_clk PIN_C3
#define max_cs PIN_C2
const int8 user_font[120]= {0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C,
0x77,0x6B,0x5D,0x6B,0X77,
0x1C,0x22,0x7F,0x22,0x1C};
#define config_addr 0x04
#define font_addr 0x05
#define test_addr 0x07
#define plane01_addr 0x20
#define plane02_addr 0x21
#define plane03_addr 0x22
#define plane04_addr 0x23
#define plane11_addr 0x40
#define plane12_addr 0x41
#define plane13_addr 0x42
#define plane14_addr 0x43
int8 config_byte;
void write_to_6952(int8 cmd,int8 data)
{
int8 i;
int16 ser_data;
ser_data=make16(cmd,data);
//shift_right(&ser_data,2,0);
output_low(max_clk);
output_low(max_cs);
for(i=1;i<=16;++i)
{
output_bit(max_sdi,shift_left(&ser_data,2,0));
output_high(max_clk);
delay_us(10);
// if(i<16)
output_low(max_clk);
//delay_us(6);
}
output_high(max_cs);
output_low(max_clk);
}
void write_user_font()
{
int8 j;
write_to_6952(font_addr,0x80);
for(j=0;j<120;j++)
{
write_to_6952(font_addr,user_font[j]);
}
}
/*******************************************************************
if state=1,normal operation
if state=0,shutdown
if wrt=1,write to 6952,otherwise update the config_byte register
*******************************************************************/
void shutdown(int1 state, int1 wrt)
{
if(state)
config_byte |= 0x01;
else
config_byte &= 0xFE;
if(wrt)
write_to_6952(config_addr,config_byte);
}
/*******************************************************************
if state=1,enable blinking
if state=0,disable blinking
if wrt=1,write to 6952,otherwise update the config_byte register
*******************************************************************/
void blink_enable(int1 state,int1 wrt )
{
if(state)
config_byte |= 8;
else
config_byte &= 0xF7;
if( wrt )
write_to_6952(config_addr,config_byte);
}
/*************************************************************************
if state=1,put the display in test mode
if state=0,normal mode
Does not affect plane data - original display is restored when set 0.
**************************************************************************/
void display_test(int1 state )
{
if(state)
write_to_6952(test_addr,1);
else
write_to_6952(test_addr,0);
}Interfacing ADS7807
#define sclk PIN_D3
#define sdata PIN_D4
#define rc PIN_D5
#define busy PIN_D6
#define cs PIN_C5
void init_ads7807()
{
output_low(sclk);
output_high(rc);
delay_us(2);
output_high(cs);
}
int32 read_ads7807()
{
BYTE i;
int32 adc_result=0;
while(!input(busy));
output_low(rc);
delay_cycles(1);
output_low(cs);
delay_us(1);
output_high(cs);
delay_cycles(1);
output_high(rc);
while(!input(busy));
output_low(cs);
for(i=1;i<=16;++i)
{
output_high(sclk);
shift_left(&adc_result,4,input(sdata));
output_low(sclk);
}
output_high(cs);
adc_result*=7629;
return adc_result/10000;
}SR-87 GPS Module
#use rs232(baud=4800,xmit=PIN_C6,rcv=PIN_C7,bits=8,stop=1,parity=n,stream=GPS,force_sw)
#include<string.h>
#include<stdlib.h>
//char latitude[17],longitude[17],buffer[17];
// Read the lattitude and longitude
void get_position()
{
int8 rx_count,rx_buffer;
rx_count=0;
strcpy(buffer,"GPRMC");
do
{
rx_count=0;
output_low(PIN_A5);
while(fgetc(GPS) !='$');
while((rx_buffer=fgetc(GPS))!=',')
{
latitude[rx_count]=rx_buffer;
rx_count++;
}
latitude[rx_count]='\0';
}while(strcmp(latitude,buffer));
//*****************************************************************
while(getc(GPS)!=',');
while(getc(GPS)!=',');
rx_count=0;
do
{
rx_buffer=fgetc(GPS);
latitude[rx_count]=rx_buffer;
rx_count++;
}while(rx_buffer!=',');
latitude[rx_count]=fgetc(GPS);
rx_count++;
latitude[rx_count]='\0';
rx_buffer=fgetc(GPS);
rx_count=0;
do
{
rx_buffer=fgetc(GPS);
longitude[rx_count]=rx_buffer;
rx_count++;
}while(rx_buffer!=',');
longitude[rx_count]=fgetc(GPS);
rx_count++;
longitude[rx_count]='\0';
}
//wait untill a valid data
void get_fix()
{
int8 rx_count,rx_buffer;
rx_count=0;
strcpy(buffer,"GPRMC");
do
{
do
{
rx_count=0;
while(fgetc(GPS) !='$');
while((rx_buffer=fgetc(GPS))!=',')
{
latitude[rx_count]=rx_buffer;
rx_count++;
}
latitude[rx_count]='\0';
}while(strcmp(latitude,buffer));
while(fgetc(GPS) !=',');
rx_buffer=fgetc(GPS);
}while(rx_buffer !='A');
}Interface matrix Keypad
/Keypad connection:
#define col0 PIN_B3
#define col1 PIN_B2
#define col2 PIN_B1
#define col3 PIN_B0
#define row0 PIN_B7
#define row1 PIN_B6
#define row2 PIN_B5
#define row3 PIN_B4
#define num_col 4
// Keypad layout:
char const KEYS[4][4] = {{1,2,3,13},
{4,5,6,14},
{7,8,9,15},
{11,10,12,16}};
void init_keypad()
{
output_high(row0);
output_high(row1);
output_high(row2);
output_high(row3);
output_low(col0);
output_low(col1);
output_low(col2);
output_low(col3);
}
short int ALL_ROWS (void)
{
if (input (row0) & input (row1) & input (row2) & input (row3))
return (0);
else
return (1);
}
//Will return a key value if pressed or 0 if not
int8 get_key()
{
int8 row,col=0;
do
{
switch (col)
{
case 0 :
output_low(col0);
output_high(col1);
output_high(col2);
output_high(col3);
break;
case 1 :
output_high(col0);
output_low(col1);
output_high(col2);
output_high(col3);
break;
case 2 :
output_high(col0);
output_high(col1);
output_low(col2);
output_high(col3);
break;
case 3 :
output_high(col0);
output_high(col1);
output_high(col2);
output_low(col3);
break;
}
if(!input (row0))
row=1;
else if(!input (row1))
row=2;
else if(!input (row2))
row=3;
else if(!input (row3))
row=4;
else
row=0;
col++;
}while(!row && col<num_col);
if(row)
return KEYS[row-1][col-1];
else
return 0;
}
//function waits until any key is pressed and released.
int8 get_key_released()
{
int8 _key_temp ;
do
{
_key_temp=get_key();
}while(!_key_temp);
init_keypad();
do
{
while(ALL_ROWS());
delay_ms(50);
}
while(ALL_ROWS());
return _key_temp;
}
