PIC16F1937 for PWM generation for H-Bridge control

unsigned char sr_10k_signal_500[] = {0, 31, 58, 80, 94, 99, 94, 80, 58, 31, 0, -31, -58, -80, -94, -99, -94, -80, -58, -31};

// Port settings
TRISC2 = 0; // P1A
TRISD5 = 0; // P1B
TRISD6 = 0; // P1C;
TRISD7 = 0; // P1D;

// ECCP settings
CCP1CON = 0b10001111; // Enable EPWM in Half bridge mode, active low PWMs
CCPTMRS0 = 0b11111100; // Timer2 is timebase for PWM1
CCP1AS = 0b00011010; // Comparator 1 autoshutdown is enabled with output goes to tri-state after shutdown
PWM1CON = 0b10000100; // PWM1 auto shutdown restart is enabled with 4 times instruction clock dead band
PSTR1CON = 0b00010000; // Uninverted PWM outputs will appear on port pins
CCPR1 = 49 //Initial 50% duty cycle to start from 0

// Timer 2 settings
T2CON = 0b00000100;
T2PR = 99; // ((Fosc/4)/10k)-1 is the period count

  unsigned char sin_table[32]={0, 10, 19, 29, 38, 47,
   55, 63, 70, 77, 82, 87, 91, 95, 97, 
  99, 99, 99, 97, 95, 91, 87, 82, 77, 70, 63, 55, 47, 38, 29, 19, 10};

unsigned int TBL_POINTER_NEW, TBL_POINTER_OLD, TBL_POINTER_SHIFT, SET_FREQ;
unsigned int TBL_temp;
unsigned char DUTY_CYCLE;



//Set LCD Bits for DATA Direction

sbit LCD_RS at RD0_bit;
sbit LCD_EN at RC3_bit;
sbit LCD_D4 at RC4_bit;
sbit LCD_D5 at RC5_bit;
sbit LCD_D6 at RC6_bit;
sbit LCD_D7 at RC7_bit;

sbit LCD_RS_Direction at TRISD0_bit;
sbit LCD_EN_Direction at TRISC3_bit;
sbit LCD_D4_Direction at TRISC4_bit;
sbit LCD_D5_Direction at TRISC5_bit;
sbit LCD_D6_Direction at TRISC6_bit;
sbit LCD_D7_Direction at TRISC7_bit;

void interrupt(){
     if (TMR2IF_bit == 1){
        TBL_POINTER_NEW = TBL_POINTER_OLD + SET_FREQ;
        if (TBL_POINTER_NEW < TBL_POINTER_OLD){
           CCP1CON.P1M1 = ~CCP1CON.P1M1; //Reverse direction of full-bridge
        }
        //TBL_POINTER_SHIFT = TBL_POINTER_NEW >> 11;
        TBL_POINTER_SHIFT = TBL_POINTER_NEW >> 13;//10KHZ
        DUTY_CYCLE = TBL_POINTER_SHIFT;
        CCPR1L = sin_table[DUTY_CYCLE];
        TBL_POINTER_OLD = TBL_POINTER_NEW;
        TMR2IF_bit = 0;
     }}
void main() {
     Lcd_Init();
    LCD_Cmd(_LCD_CLEAR);
    LCD_Cmd(_LCD_CURSOR_OFF);


    SET_FREQ=512;//50HZ at 12MHZ with 20MHZ and 32 values
     TBL_POINTER_SHIFT = 0;
     TBL_POINTER_NEW = 0;
     TBL_POINTER_OLD = 0;
     DUTY_CYCLE = 0;
     ANSELA = 0x0F; //Enable Analog Reading for RA0-RA3
     PR2=99;
     TRISC = 0x07;    //Only RC2 is output
     PORTC=0X07;
     TRISD=0;
     PORTD=0;
     TRISA=0x0F;
     PORTA=0x0F;
     TRISB=0X01;
     PORTB=0x01;
     CCP1CON = 0b00001101;
    PWM1CON=0X80;
     TMR2IF_bit = 0;
     T2CON =0X04; //TMR2 on, prescaler and postscaler 1:1
     while (TMR2IF_bit == 0);
     TMR2IF_bit = 0;
     TRISC = 0x00;
     TRISD=0X00;
     TMR2IE_bit = 1;
     GIE_bit = 1;
     PEIE_bit = 1;
     //ADC Initialization

       // ADC_Init();
     while(1)
     {

    }
}