Temperature sensor on MSP430

[nothing9099]

I'm using an MSP430 MC and I've got a basic task to perform. I've not been coding for long so I'm unsure.

#define   STATUS_PASS (1)
#define   STATUS_FAIL (0)
#define   USB_STRING_LEN  (15)
#define   V_ones      (9)                   // USB_string[9]  = ones of V
#define   V_tenths	  (11)                  // USB_string[11]  = tenths of V
#define   C_tens      (0)                   // USB_string[0]  = tens of deg C
#define   C_ones      (1)                   // USB_string[1]  = ones of deg C
#define   F_hundreds  (4)                   // USB_string[4]  = hundreds of deg F
#define   F_tens      (5)                  // USB_string[5] = tens of deg F
#define   F_ones      (6)                  // USB_string[6] = ones of deg F

unsigned char format_temperature_string(unsigned int degrees, unsigned char c_or_f)
{
  unsigned char hundreds = '0';             // Init to '0' to code in ASCII
  unsigned char tens = '0';
  unsigned char ones = '0';
  unsigned char status = STATUS_PASS;       
  
  
  // Calculate the hundreds, tens and ones places...
  while (degrees >= 100){
    hundreds++;
    degrees-=100;
  }
  while (degrees >= 10){
    tens++;
    degrees-=10;
  }
  ones+=degrees;

  switch(c_or_f)
  {
    case 'c':
    case 'C':
	// FILL IN CODE THAT GOES HERE



      break;
    case 'f':
    case 'F':
    // FILL IN CODE THAT GOES HERE



      break;     
    default: 
      status = STATUS_FAIL;                 // Invalid parameter
      break;
  }
  return status; 
}

i have to fill in the code so that it will output 27 degrees C. Do I just simply do

unsigned char format_temperature_string(unsigned int degrees, unsigned char c_or_f)
{
  unsigned char hundreds = '0';             // Init to '0' to code in ASCII
  unsigned char tens = '0';
  unsigned char ones = '0';
  unsigned char status = STATUS_PASS;       
  
  
  // Calculate the hundreds, tens and ones places...
  while (degrees >= 100){
    hundreds++;
    degrees-=100;
  }
  while (degrees >= 10){
    tens++;
    degrees-=10;
  }
  ones+=degrees;

  switch(c_or_f)
  {
    case 'c':
    case 'C':
	// FILL IN CODE THAT GOES HERE

USB_string[0] = ’2’;
USB_string[1] = ’7’;


      break;
    case 'f':
    case 'F':
    // FILL IN CODE THAT GOES HERE



      break;     
    default: 
      status = STATUS_FAIL;                 // Invalid parameter
      break;
  }
  return status; 
}