main( void )
{
/* Initialize BSL */
int j=0;
SYS_EXBUSSEL = 0x6100;
USBSTK5515_init( );
AIC3204_config(freq_48);
coeff = &coefs[0]; //coefs is coefficient of impulse response defined in fdacoefs_int.h
inPtr = &input; //inPtr is a globally declared pointer to a Int16
outPtr = &output;
while(1)
{
while((Rcv & I2S0_IR) == 0);
input = I2S0_W0_MSW_R; // 16 bit left channel receive audio data
input = I2S0_W1_MSW_R; // 16 bit right channel receive audio data
linearbuff(); // this function implements the linear buffer
while((Xmit & I2S0_IR) == 0);
I2S0_W0_MSW_W = output; // 16 bit left channel transmit audio data
I2S0_W1_MSW_W = output; // 16 bit right channel transmit audio data
recent_output[j]=output;
j = ((j + 1) % 100);
}
/* Disble I2S */
I2S0_CR = 0x00;
return 0;
}
main( void )
{
/* Initialize BSL */
int j=0;
SYS_EXBUSSEL = 0x6100;
USBSTK5515_init( );
AIC3204_config(freq_48);
coeff = &coefs[0]; //coefs is coefficient of impulse response defined in fdacoefs_int.h
inPtr = &input; //inPtr is a globally declared pointer to a Int16
outPtr = &output;
while(1)
{
input=sytheticInput[i];
circbuff(); // this function implements the linear buffer
recent_output[j]=output;
i=(i+1)%5;
j = ((j + 1) % 100);
}
/* Disble I2S */
I2S0_CR = 0x00;
return 0;
}
/* ------------------------------------------------------------------------ *
* *
* main( ) *
* *
* ------------------------------------------------------------------------ */
void main( void )
{
/* Initialize BSL */
USBSTK5515_init( );
printf("EXBUSSEL = %02x\n", SYS_EXBUSSEL);
TEST_execute( sd_test, "SD card", 1 );
printf( "\n***ALL Tests Passed***\n" );
SW_BREAKPOINT;
}
/* ------------------------------------------------------------------------ *
* *
* main( ) *
* *
* ------------------------------------------------------------------------ */
main( void )
{
/* Initialize BSL */
SYS_EXBUSSEL = 0x6100;
USBSTK5515_init( );
while(1)
{
circbuffconfig(); // this function implements the linear buffer
}
return 0;
}
main(void)
{
USBSTK5515_init( );
for(int i=4000;i<4100;i++)
{
x[i-4000]=i;
}
/***************************************
*****Your conversion code goes here*****
***************************************/
// Your code should return, in y, the values in x, expressed such that
// they occupy fully the available 16 bit range provided by the datatype
// Int16.
return 0;
}
/* ------------------------------------------------------------------------ *
* *
* main( ) *
* *
* ------------------------------------------------------------------------ */
main( void )
{
Int16 LEFT_DATA,RIGHT_DATA;
/* Initialize BSL */
SYS_EXBUSSEL = 0x6100;
USBSTK5515_init( );
AIC3204_config(freq_48);
while(TRUE)
{
while((Rcv & I2S0_IR) == 0); // Wait for interrupt pending flag
LEFT_DATA = I2S0_W0_MSW_R; // 16 bit left channel received audio data
RIGHT_DATA = I2S0_W1_MSW_R; // 16 bit right channel received audio data
while((Xmit & I2S0_IR) == 0);
I2S0_W0_MSW_W = LEFT_DATA; // 16 bit left channel transmit audio data
I2S0_W1_MSW_W = RIGHT_DATA; // 16 bit right channel transmit audio data
}
/* Disble I2S */
I2S0_CR = 0x00;
return 0;
}
void AIC3204_Init(void)
{
/* Define sampling rate parameters */
unsigned char pll_dh, pll_dl, madc, mdac, nadc, ndac;
/* Initialize BSL */
USBSTK5515_init();
/* Configure Serial Bus */
SYS_EXBUSSEL |= 0x0100; // Configure Serial bus 0 for I2S0
/* Set Sampling Rate */
if(fs == AIC3204_FS_44_1KHZ)
{
// PLL D = 560
pll_dh = 0x02;
pll_dl = 0x30;
// MDAC & MACC = 3
madc = 0x03;
mdac = 0x03;
// NDAC & NADC = 5
nadc = 0x05;
ndac = 0x05;
}
else // 8, 16, 24, 32, 48, 96 KHz
{
// PLL D = 1680
pll_dh = 0x06;
pll_dl = 0x90;
switch(fs) {
case AIC3204_FS_8KHZ:
madc = 0x0C;
mdac = 0x0C;
break;
case AIC3204_FS_16KHZ:
madc = 0x06;
mdac = 0x06;
break;
case AIC3204_FS_24KHZ:
madc = 0x04;
mdac = 0x04;
break;
case AIC3204_FS_32KHZ:
madc = 0x03;
mdac = 0x03;
break;
case AIC3204_FS_48KHZ:
madc = 0x02;
mdac = 0x02;
break;
case AIC3204_FS_96KHZ:
madc = 0x01;
mdac = 0x01;
break;
}
// NDAC & NADC = 7
nadc = 0x07;
ndac = 0x07;
}
/* Configure AIC3204 */
AIC3204_rset( 0, 0 ); // Select page 1
AIC3204_rset( 1, 1 ); // Reset codec
AIC3204_rset( 0, 1 ); // Point to page 1
AIC3204_rset( 1, 8 ); // Disable crude AVDD generation from DVDD
AIC3204_rset( 2, 1 ); // Enable Analog Blocks, use LDO power
AIC3204_rset( 0, 0 );
/* PLL and Clocks config and Power Up */
AIC3204_rset(27, 0x0D); // BCLK and WCLK is set as o/p to AIC3204(Master)
AIC3204_rset(28, 0x00); // Data ofset = 0
AIC3204_rset(4, 3); // PLL setting: PLLCLK <- MCLK, CODEC_CLKIN <-PLL CLK
AIC3204_rset(6, 0x07); // Set PLL J
AIC3204_rset(7, pll_dh); // PLL setting: D HI_BYTE(5:0)
AIC3204_rset(8, pll_dl); // PLL setting: D LO_BYTE(7:0)
AIC3204_rset(30, 0x88); // For 32 bit clocks per frame in Master mode ONLY
// BCLK=DAC_CLK/N =(12288000/8) = 1.536MHz = 32*fs
AIC3204_rset(5, 0x91); //PLL setting: Power up PLL, P=1 and R=1
AIC3204_rset(13, 0x00); // DOSR Hi_Byte(1:0) = 0
AIC3204_rset(14, 0x80); // DOSR Lo_Byte(7:0) = 128
AIC3204_rset(20, 0x80); // AOSR (7:0) = 128
AIC3204_rset(11, 0x80 | ndac); // Power up NDAC and set NDAC value
AIC3204_rset(12, 0x80 | mdac); // Power up MDAC and set MDAC value
AIC3204_rset(18, 0x80 | nadc); // Power up NADC and set NADC value
AIC3204_rset(19, 0x80 | madc); // Power up MADC and set MADC value
/* DAC ROUTING and Power Up */
AIC3204_rset( 0, 1 ); // Select page 1
AIC3204_rset( 0x0c, 8 ); // LDAC AFIR routed to HPL
AIC3204_rset( 0x0d, 8 ); // RDAC AFIR routed to HPR
AIC3204_rset( 0, 0 ); // Select page 0
AIC3204_rset( 64, 2 ); // Left vol=right vol
AIC3204_rset( 65, 0 ); // Left DAC gain to 0dB VOL; Right tracks Left
AIC3204_rset( 63, 0xd4 ); // Power up left,right data paths and set channel
AIC3204_rset( 0, 1 ); // Select page 1
AIC3204_rset( 0x10, 0 ); // Unmute HPL , 0dB gain
AIC3204_rset( 0x11, 0 ); // Unmute HPR , 0dB gain
AIC3204_rset( 9, 0x30 ); // Power up HPL,HPR
AIC3204_rset( 0, 0 ); // Select page 0
USBSTK5515_wait( 100 ); // wait
/* ADC ROUTING and Power Up */
AIC3204_rset( 0, 1 ); // Select page 1
AIC3204_rset( 0x33, 0x00 );// Disable MICBIAS
AIC3204_rset( 0x34, 0x10 );// STEREO 1 Jack
// IN2_L to LADC_P through 10 kohm
AIC3204_rset( 0x37, 0x10 );// IN2_R to RADC_P through 10 kohm
AIC3204_rset( 0x36, 0x40 );// CM_1 (common mode) to LADC_M through 10 kohm
AIC3204_rset( 0x39, 0x40 );// CM_1 (common mode) to RADC_M through 10 kohm
AIC3204_rset( 0x3b, 0 ); // MIC_PGA_L unmute
AIC3204_rset( 0x3c, 0 ); // MIC_PGA_R unmute
AIC3204_rset( 0, 0 ); // Select page 0
AIC3204_rset( 0x51, 0xc0 );// Powerup Left and Right ADC
AIC3204_rset( 0x52, 0 ); // Unmute Left and Right ADC
AIC3204_rset( 0, 0 );
USBSTK5515_wait( 100 ); // Wait
}
