IR photodiode pulse detector...form seven segment to LCD display..any mistake..please

[Jerry John]

SEVEN SEGMENT:

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Code C - [expand]
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sbit IR_Tx at RA3_bit;
sbit DD0_Set at RA2_bit;
sbit DD1_Set at RA1_bit;
sbit DD2_Set at RA0_bit;
sbit start at RB7_bit;
unsigned short j, DD0, DD1, DD2, DD3;
unsigned short pulserate, pulsecount;
unsigned int i;
//-------------- Function to Return mask for common anode 7-seg. display
unsigned short mask(unsigned short num) {
 switch (num) {
 case 0 : return 0xC0;
 case 1 : return 0xF9;
 case 2 : return 0xA4;
 case 3 : return 0xB0;
 case 4 : return 0x99;
 case 5 : return 0x92;
 case 6 : return 0x82;
 case 7 : return 0xF8;
 case 8 : return 0x80;
 case 9 : return 0x90;
 } //case end
}
 
void delay_debounce(){
 Delay_ms(300);
}
 
void delay_refresh(){
 Delay_ms(5);
}
 
void countpulse(){
 IR_Tx = 1;
 delay_debounce();
 delay_debounce();
 TMR0=0;
 Delay_ms(15000);  // Delay 1 Sec
 IR_Tx = 0;
 pulsecount = TMR0;
 pulserate = pulsecount*4;
}
 
void display(){
  DD0 = pulserate%10;
  DD0 = mask(DD0);
  DD1 = (pulserate/10)%10;
  DD1 = mask(DD1);
  DD2 = pulserate/100;
  DD2 = mask(DD2);
  for (i = 0; i<=180*j; i++) {
    DD0_Set = 0;
    DD1_Set = 1;
    DD2_Set = 1;
    PORTB = DD0;
    delay_refresh();
    DD0_Set = 1;
    DD1_Set = 0;
    DD2_Set = 1;
    PORTB = DD1;
    delay_refresh();
    DD0_Set = 1;
    DD1_Set = 1;
    DD2_Set = 0;
    PORTB = DD2;
    delay_refresh();
    }
  DD2_Set = 1;
}
 
void main() {
 CMCON = 0x07;    // Disable Comparators
 TRISA = 0b00110000; // RA4/T0CKI input, RA5 is I/P only
 TRISB = 0b10000000; // RB7 input(start), rest output
 OPTION_REG = 0b00101000; // Prescaler (1:1), TOCS =1 for countermode(EBPD)
 pulserate = 0;
 j = 1;
 display();
 do {
  if(!start){//penyongsang 
   delay_debounce();
   countpulse();
   j= 3;
   display();
  }
 } while(1);  // Infinite loop
}
 
 
 
LCD:
 
sbit IR_Tx at RA3_bit;
sbit start at RB0_bit;
unsigned short pulserate, pulsecount;
 
 
sbit LCD_RS at RB2_bit;
sbit LCD_EN at RB3_bit;
sbit LCD_D4 at RB4_bit;
sbit LCD_D5 at RB5_bit;
sbit LCD_D6 at RB6_bit;
sbit LCD_D7 at RB7_bit;
sbit LCD_RS_Direction at TRISB2_bit;
sbit LCD_EN_Direction at TRISB3_bit;
sbit LCD_D4_Direction at TRISB4_bit;
sbit LCD_D5_Direction at TRISB5_bit;
sbit LCD_D6_Direction at TRISB6_bit;
sbit LCD_D7_Direction at TRISB7_bit;
 
 
 
void delay_debounce(){
 Delay_ms(300);
}
 
void delay_refresh(){
 Delay_ms(5);
}
 
void countpulse(){
 IR_Tx = 1;
 delay_debounce();
 delay_debounce();
 TMR0=0;           //0 to 1 transition
 Delay_ms(15000);  // Delay 1 Sec
 IR_Tx = 0;
 pulsecount = TMR0;
 pulserate = pulsecount*4;
}
 
 
char message1[] = "Frequency=   Hz";
char *freq = "000";
 
void Display_Freq() {
freq[0] = (pulserate/100)%10+ 48;     // Extract hundreds digit
freq[1] = (pulserate/10)%10 + 48;    // Extract tens digit
freq[2] =  pulserate%10     + 48;    // Extract ones digit
 
 Lcd_Out(1, 11, freq);
}
 
 
 
void main() {
CMCON = 0x07;    // Disable Comparators
TRISA = 0b00110000; // RA4/T0CKI input, RA5 is I/P(clear) only
TRISB = 0b00000001; // RB0 input(start),rest output,direction
 
OPTION_REG = 0b00101000; // Prescaler (1:1), TOCS =1 counter mode
pulserate=0;
Display_Freq();
 
 Lcd_Init();                 // Initialize LCD
 Lcd_Cmd(_LCD_CLEAR);        // CLEAR display
 Lcd_Cmd(_LCD_CURSOR_OFF);   // Cursor off
 Lcd_Out(1,1,message1);      // Write message1 in 1st row
 
 
do {
  if(!start){
  delay_debounce();
  countpulse();
  Delay_ms(1000);  // Delay 1 Sec
  Display_Freq();//TMR0@countpulse@pulsecount@pulserate,value
}
} while(1);  // Infinite loop
}

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