need help in code composer studio

[strike04freedom14]

i using code composer studio do my assignment.
i need to put this signal generator equation into the AM coding, so the frequency in the AM coding can be varied.
Problem is, this equation need to put where/which line in the AM coding, or need something change in the AM coding.


Sine wave = a*sin (2* PI * (sample/cycle))



AM Coding


//AM.c

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Code C - [expand]
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#include "DSK6713_AIC23.h"          //codec-dsk support file
Uint32 fs=DSK6713_AIC23_FREQ_8KHZ;  //set sampling rate
short amp = 1;                      //index for modulation
 
void main()
{
 short baseband[20]={1000,951,809,587,309,0,-309,-587,-809,-951,-1000,-951,-809,-587,-309,0,309,587,809,951}; //400-Hz baseband
 short carrier[20] ={1000,0,-1000,0,1000,0,-1000,0,1000,0,-1000,0,1000,0,-1000,0,1000,0,-1000,0};                      //2-kHz carrier 
 short output[20];
 short k;
 
 comm_poll();                            //init DSK, codec, McBSP
 while(1)                                //infinite loop
  {
   for (k=0; k<20; k++)
    {
     output[k]= carrier[k] + ((amp*baseband[k]*carrier[k]/10)>>12);
     output_sample(20*output[k]);        //scale output
    }
  }
}

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please help me...i really need some help....Thank