aic23init.c

CHP 2 - Real-Time Digital Signal Processing: Implementations and Applications, Second Edition by Sen

// 
//  Project: Experiment 2.10.7 Use AIC23 via McBSP - Chapter 2 
//  File name: aic23Init.c   
//  Function(s): aic23Init()        
//
//  Description: This function initializes C5510 DSK on board AIC23
//
//  For the book "Real Time Digital Signal Processing: 
//                Implementation and Application, 2nd Ed"
//                By Sen M. Kuo, Bob H. Lee, and Wenshun Tian
//                Publisher: John Wiley and Sons, Ltd
//
//  Tools used: CCS v.2.12.07
//              TMS320VC5510 DSK Rev-C
//

#include "aic23.h"
#include "mcbsp.h"

#pragma CODE_SECTION(aic23Init,    ".text:example:aic23Init");

void aic23Init(void)
{
  short aic23Parm[10],i;
  ioport volatile unsigned short*p;      

  aic23Parm[0] = (short)(AIC23_LEFT_INPUT_VOL
                        |AIC23_LEFT_INVOL_INIT_VAL);
  aic23Parm[1] = (short)(AIC23_RIGHT_INPUT_VOL
                        |AIC23_RIGHT_INVOL_INIT_VAL);
  aic23Parm[2] = (short)(AIC23_LEFT_HEADPHONE_VOL
                        |AIC23_LEFT_HP_INIT_VAL);
  aic23Parm[3] = (short)(AIC23_RIGHT_HEADPHONE_VOL
                        |AIC23_RIGHT_HP_INIT_VAL);
  aic23Parm[4] = (short)(AIC23_ANALOG_AUDIO_PATH_CTL
                        |AIC23_ANALOG_PATH_INIT_VAL);
  aic23Parm[5] = (short)(AIC23_DIGITAL_AUDIO_PATH_CTL
                        |AIC23_DIGITAL_PATH_INIT_VAL);
  aic23Parm[6] = (short)(AIC23_POWERDOWN_CTL
                        |AIC23_POWERDOWN_INIT_VAL);
  aic23Parm[7] = (short)(AIC23_DIGITAL_AUDIO_IF_FMT
                        |AIC23_DIGITAL_IFFMT_INIT_VAL);
  aic23Parm[8] = (short)(AIC23_SAMPLERATE_CTL
                        |AIC23_SAMPLERATE_INIT_VAL);
  aic23Parm[9] = (short)(AIC23_DIGITAL_IF_ACTIVATION
                        |AIC23_DIGITAL_IFACT_INIT_VAL);
    
  // Initialize AIC23 rgisters       
  p = (ioport volatile unsigned short*)(McBSP_BASE+McBSP1_OFFSET+DXR1); 
  mcbsp1CtlTx(p, (short)AIC23_RESET);
  for (i=0; i<10; i++)
  {
    mcbsp1CtlTx(p, aic23Parm[i]);
  }
}