Can my program send and receive data through FPGA? im new to c programming

#include <mcu codes.h>
#include <usb_cdc.h>


#define input_CLK PIN_B0 
#define pin_1 PIN_B3
#define input_data PIN_B4
#define input_LED PIN_D1

 void main() 
 {    
    usb_cdc_init();
    usb_init();
    usb_wait_for_enumeration();
    
    int1 data[4];
    int i;
    int1 received_data=0;
    int1 data_input=0;
    int1 data_input1=0;
    
    output_high(input_LED); 
    
    while(!usb_cdc_kbhit())
    {
      for(i=0; i<4; i++)
     {
         data[i] = i+1;
     
         switch(data[i])
      {
      case 1: data[0] = 1;
      break;
      case 2: data[1] = 0;
      break;
      case 3: data[2] = 0;
      break;
      case 4: data[3] = 1;
      break;
      }
      
      output_bit(pin_1, data[i]);
      
      delay_ms(100);
      output_high(input_CLK);
      delay_ms(100);
      output_low(input_CLK);
      delay_ms(100);
      }
      
      output_low(input_LED);
      delay_ms(100);
      
    for(i=0; i<8; i++)
    {
      output_high(input_CLK);
      delay_ms(100);
      output_low(input_CLK);
      delay_ms(100);
      received_data = input_State(input_data);


         if(received_data==1)
         {  
           data_input += received_data;
           printf(usb_cdc_putc,"%d", data_input);
         }
         else
         {
            if(received_data==0)
         {
            data_input1 += received_data;
            printf(usb_cdc_putc,"%d", data_input1);
         }
         
    }
 }        
    }
    }