PIC16F-SPI-Master-MainRoutine

// Main Routine
void main(void)
{
  // Peripherals & IO Configurations
  SPI_Master_Init(); // Initialize SPI as Master @ Fosc/64 SCK
  uint8_t Data = 0; // Data Byte
  TRISB = 0x07;     // RB0, RB1 & RB2: Input Pins (Push Buttons)
  TRISD = 0x00;     // Output Port (4-Pins)
  PORTD = 0x00;     // Initially OFF
  
  while(1)
  {
    // Increment Data Value
    if (UP)
    {
      Data++;
      __delay_ms(250);
    }
    // Decrement Data Value
    if (Down)
    {
      Data--;
      __delay_ms(250);
    }
    // Send Data Value Via SPI
    if (Send)
    {
      SPI_Write(Data);
      __delay_ms(250);
    }
    PORTD = Data; // Display Current Data Value @ PORTD
  }
  return;
}