mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 488

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

Communication Processor Module
16.3.3.5.1 DSP Programming Example (Core Only)
void tx_filter ()
{
}
void modulator ()
{
void main ()
{
}
S16 *coefr
S16 *samplr, *sampli
S16 *coefend;
S32 filtoutr, filtouti;
U8 subcount, sampleindex;
extern S16 mult(S16 p1, S16 p2);
coefr=txfiltcoef_str;
coefend=txfiltcoef_end;
samplr=&txfiltdly[REAL][txfiltptr];
sampli=&txfiltdly[IMAG][txfiltptr];
sampleindex=0;
while (coefr<coefend) {
}
U8 i;
S32 termrnd;
extern S16 mult(S16 p1, S16 p2);
i=0;
while (i<SAMPLE_PER_T) {
}
tx_filter();
modulator();
filtoutr=filtouti=0;
subcount=0;
while (subcount<TXSUBFILTLEN) {
}
samplr=&txfiltdly[REAL][txfiltptr];
sampli=&txfiltdly[IMAG][txfiltptr];
modbuff[REAL][sampleindex]= filtoutr ;
modbuff[IMAG][sampleindex++]= filtouti;
sigout[i]= mult(sn1800[REAL][cosindx], modbuf[REAL][i]) -
cosindx++;
if (cosindx==SIN1800TBL_LEN)cosindx=0;
i++;
*
*
*
*
filtoutr+=mult(*coefr, *samplr--);
filtouti+=mult(*coefr++, *sampli--);
mult(sn1800[IMAG][cosindx], modbuf[IMAG][i]);
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
/* in-line invocation */
/* in-line invocation */
MOTOROLA