main()
{
int n;
for (n=0 ; n<N ; n++) //set up DFT twiddle factors
{
twiddle[n].real = cos(PI*n/N);
twiddle[n].imag = -sin(PI*n/N);
}
input_ptr = A;
output_ptr = B;
process_ptr = C;
comm_intr(); //initialise DSK, codec, McBSP
while(1) //frame processing loop
{
while(bufferfull==0); //wait for new frame of input samples
bufferfull = 0;
temp_ptr = process_ptr; //rotate buffer/frame pointers
process_ptr = input_ptr;
input_ptr = output_ptr;
output_ptr = temp_ptr;
fft(process_ptr,N,twiddle); //process contents of buffer
for (n=0 ; n<N ; n++) // compute magnitude of frequency domain representation
{ // and place in real part
(process_ptr+n)->real = -sqrt((process_ptr+n)->real*(process_ptr+n)->real
+ (process_ptr+n)->imag*(process_ptr+n)->imag)/16.0;
}
(process_ptr)->real = TRIGGER; // add oscilloscope trigger pluse
} //end of while(1)
} //end of main()
void main()
{
y[1] = sin(2.0*PI*FREQ/SAMPLING_FREQ);
a1 = 2.0*cos(2.0*PI*FREQ/SAMPLING_FREQ);
comm_intr(); //init DSK, codec, McBSP
while(1); //infinite loop
}
void main()
{
int i; comm_intr(); //init DSK, codec, McBSP
for(i=0; i<=N; i++)
phi_1[i] = sin(2*PI*i/N); //basis function
while(1); //infinite loop
}
void main()
{
comm_intr(); // initialise DSK
for (i=0 ; i< TABLESIZE ; i++)
sine_table[i] = (short)(10000.0*sin(2*PI*i/TABLESIZE));
while(1);
}
void main()
{
*(unsigned volatile int *)GAINADRESS = 0x0005;
HPI_FLAG = HPI_SUPPORT;
lpf = BiQuad_create();
//Uint32 controlRegister = HPI_ADDR(HPIC);
BiQuad_FlushDelays(lpf);
calculateLPFCoeffs(lpf);
comm_intr(); // initialise DSK
}
void main()
{
#if METHOD == 'B'
dly_ptr = dly;
start_ptr = dly;
end_ptr = dly + N - 1;
h_ptr = h;
#endif
comm_intr();
while(1);
}
void main()
{
WaveTable_generateTables();
i = 0;
t.readPointer = 0;
t.mInc = 0;
t.unipolar = 0;
t.invert = 0;
t.table = SawtoothTable;
WaveTable_cookFrequency(&t, short2q(5));
comm_intr();
while(1);
}
void main()
{
int i = 0;
for (i = 0; i <= WLENGTH; i++)
{
w[i] = 0.0; //init coeff for adaptive FIR
dly_adapt[i] = 0.0; //init buffer for adaptive FIR
}
sreg.regval=0xFFFF; //initial seed value
fb = 1; //initial feevack value
comm_intr(); //init DSK, codec, McBSP
while (1); //infinite loop
}
void main()
{
for(i=0 ; i<BUF_SIZE ; i++)
buffer[i] = 0;
for(i=0; i<dsize/2; i++) env[i] = i*2./dsize;
for(i=dsize/2; i >= 0; i--) env[dsize-i-1] = i*2./dsize;
rp = 0.;
wp = 0;
comm_intr(); //init DSK, codec, McBSP
while(1); //infinite loop
}
void main (void) {
Uint32 fs=DSK6713_AIC23_FREQ_16KHZ; // Sampling frequency
SEQUENCE seq = {input_bits, ninput_bits, 0};
USER usr;
init_arrays();
init_user(&usr); // Init state variables
comm_intr(fs); // DSK Init
while(1) {
wait_buffer();
read_bits(&seq, usr.nbits, usr.bits);
cod_rz(&usr, oblock, (usr.lSymb)/2);
//cod_polar (&usr, oblock);
//cod_bipolar (&usr, oblock);
}
}
void main() {
Uint32 fs=DSK6713_AIC23_FREQ_16KHZ; // Ajuste de la frecuencia de muestreo
float hFIR[L_FIR]; // Respuesta impulsional del filtro FIR
// filter_iir2 hIIR; // Coeficientes del filtro IIR
init_processFIR1(hFIR); // Filtro paso alto
// init_processFIR2(hFIR); // Filtro generado con MATLAB
// init_processIIR(&hIIR); // Filtro generado con MATLAB
comm_intr(fs); // inicio DSK, codec, McBSP usando interrupciones
while(1) { // bucle infinito
wait_buffer_block(); // Espera a que se llene el buffer
processFIR(io_block,hFIR); // Procesa bloque
// processIIR(io_block,&hIIR,L_IIR,N); // Procesa bloque
}
}
void main()
{
// setup buffers
input = (fixedp*)malloc(N*sizeof(fixedp));
output = (fixedp*)malloc(N*sizeof(fixedp));
process = (fixedp*)malloc(N*sizeof(fixedp));
memset(&input[0], 0, N*sizeof(fixedp));
memset(&output[0], 0, N*sizeof(fixedp));
memset(&process[0], 0, N*sizeof(fixedp));
bufferindex = 0;
bufferflag = 0;
*(unsigned volatile int *)GAINADRESS = float2q(0.25f);
// setup hpi - nothing :O
// Initialize interrupts
comm_intr();
}
void main()
{
short d_n, y;
short b_i = 1, sine_i = 0, b = 0;
short c_n = 0;
short b_n = 1, shift15_cn = 0, not_shift15 = 0;
comm_intr();
while(1){
if(intflag != FALSE){
intflag = FALSE;
sine_i= sine_i&3;
y = sine[sine_i];
sine_i++;
y = (32767*y)>>15 ;
/* implementacao do contador sem recurso a instruccao condicional if */
//b_i++;
//b=(b_i&16)>>4;
//b_n=(b_n^b);
//b_i=(b_i&15);*/
if(b_i>15){
b_i=0;
b_n=(b_n^1);
c_n=c_n^b_n;
shift15_cn=c_n<<15;
not_shift15=~shift15_cn;
d_n=not_shift15>>14;
}
b_i++;
y=d_n*y;
AIC_buffer.channel[LEFT] = y;
}
void main() //main body of program does nothing
{
comm_intr(); //initialise McBSP, AD535
}
void main()
{
comm_intr();
}
void main()
{
comm_intr();
while(1);
}
void main()
{
comm_intr(); //init DSK, codec, McBSP
while(1); //infinite loop
}
