void main(void)
{
Uint16 key;
ICR = 0xff2e; /* IDLE Control Register */
/* mem port, io port and cpu idle active */
/* Peripheral_Reset */
CSL_SYSCTRL_REGS->PSRCR = 0x0020;
CSL_SYSCTRL_REGS->PCGCR1 = 0x0000;
CSL_SYSCTRL_REGS->PCGCR2 = 0x0000;
CSL_SYSCTRL_REGS->PRCR = 0x00bf;
/* VERY IMPORTANT !!! */
/* PPMODE1 (SPI, GPIO, UART, and I2S2):
7 signals of the SPI module,
6 GPIO signals(GP[17:12]),
4 signals of the UART module,
4 signals of the I2S2 module
SP1MODE2 (GP[11:6]). 6 GPIO signals (GP[11:6])
SP0MODE0 (MMC/SD0). All 6 signals of the MMC/SD0
*/
CSL_SYSCTRL_REGS->EBSR = (CSL_SYS_EBSR_PPMODE_MODE1 << 12)
|(CSL_SYS_EBSR_SP1MODE_MODE2 << 10)
|(CSL_SYS_EBSR_SP0MODE_MODE0 << 8);
asm(" bit(ST1, #ST1_INTM) = #1");
INTR_init();
PLL_init(160*1000000L);
TIMER_init();
EZDSP5535_I2C_init();
EZDSP5535_LCD_init();
aic3204_init(2, 0);
EZDSP5535_GPIO_init();
EZDSP5535_I2S_init(1); // interrupt mode
EZDSP5535_SAR_init();
asm(" bit(ST1, #ST1_INTM) = #0");
displayPeriod();
while(1) {
key = EZDSP5535_SAR_getKey();
if(key == SW1) {
if(period > 10)
period--;
CSL_GPIO_REGS->IOOUTDATA2 ^= 2;
displayPeriod();
}
if(key == SW2) {
if(period < 900)
period++;
CSL_GPIO_REGS->IOOUTDATA2 ^= 1;
displayPeriod();
}
asm(" idle");
}
}
void main()
{
int key = 0;
int freqShift = 0;
ICR = 0xff2e; /* IDLE Control Register */
/* mem port, io port and cpu idle active */
/* Peripheral_Reset */
CSL_SYSCTRL_REGS->PSRCR = 0x0020;
CSL_SYSCTRL_REGS->PCGCR1 = 0x0000;
CSL_SYSCTRL_REGS->PCGCR2 = 0x0000;
CSL_SYSCTRL_REGS->PRCR = 0x00bf;
/* VERY IMPORTANT !!! */
/* PPMODE1 (SPI, GPIO, UART, and I2S2):
7 signals of the SPI module,
6 GPIO signals(GP[17:12]),
4 signals of the UART module,
4 signals of the I2S2 module
SP1MODE2 (GP[11:6]). 6 GPIO signals (GP[11:6])
SP0MODE0 (MMC/SD0). All 6 signals of the MMC/SD0
*/
CSL_SYSCTRL_REGS->EBSR = (CSL_SYS_EBSR_PPMODE_MODE1 << 12)
|(CSL_SYS_EBSR_SP1MODE_MODE2 << 10)
|(CSL_SYS_EBSR_SP0MODE_MODE0 << 8);
asm(" bit(ST1, #ST1_INTM) = #1");
PLL_init(80000000); /* CPU clock = 10MHz */
INTR_init(); /* set Interrupt vector and clean all IRs */
EZDSP5535_GPIO_init();
EZDSP5535_I2C_init(); /* Initialize I2C */
aic3204_init(2, 0); /* Initialize codec, sampling rate = 32kHz */
DMA_audio_init(4 * FFT_L);
EZDSP5535_I2S_init(0); /* Initialize I2S */
EZDSP5535_SAR_init();
asm(" bit(ST1, #ST1_INTM) = #0");
while(1) {
audioProcessing(freqShift);
key = EZDSP5535_SAR_getKey();
if(key == SW1) {
freqShift = 1;
CSL_GPIO_REGS->IOOUTDATA2 &= ~0x0002;
}
if(key == SW2) {
freqShift = 0;
CSL_GPIO_REGS->IOOUTDATA2 |= 0x0002;
}
asm(" idle");
}
}
void main( void )
{
/* Initialize BSL */
USBSTK5505_init( );
/* Initialize Phase Locked Loop (PLL) */
pll_frequency_setup(100);
/* Initialise hardware interface and I2C for code */
aic3204_hardware_init();
/* Initialise the AIC3204 codec */
aic3204_init();
printf("\n\nRunning Project DTMF Generator\n");
printf( "Generates DTMF frequencies for telephone number --> to Headphones/Lineout\n\n" );
/* Setup sampling frequency */
set_sampling_frequency_and_gain(SAMPLES_PER_SECOND, 0);
asm(" bclr XF"); // Turn off XF LED
while(1)
{
aic3204_codec_read(&left_input, &right_input); // Configured for one interrupt per two channels.
left_output = right_output = dial_phone_number(&telephone_number[0]);
if ( left_output > 0)
{
asm(" bset XF");
}
else
{
asm(" bclr XF");
}
aic3204_codec_write(left_output/2, right_output/2);
}
}
void main(void)
{
Int16 *samples;
HANDLE FHandle = Not_Open_FILE;
Int16 *out_words = &rawOutWords[1];
Uint8 *byte16 = &RfByte[2];
Int16 mlt_coefs[DCT_LENGTH];
Int16 mag_shift[2];
Int16 old_mag_shift[2];
Uint16 number_of_bits_per_frame;
Uint16 number_of_bytes_per_frame;
Uint16 number_of_16bit_words_per_frame;
Int16 offset;
Int16 key;
Uint16 chn; // left and right channel, 0 or 1
Int16 sent_buffer_cnt = 0;
Uint8 *sent_buffer;
ICR = 0xff2e; /* IDLE Control Register */
/* mem port, io port and cpu idle active */
DSP_zero(xmt_l, DCT_LENGTH);
DSP_zero(xmt_r, DCT_LENGTH);
/* Peripheral_Reset */
CSL_SYSCTRL_REGS->PSRCR = 0x0020;
CSL_SYSCTRL_REGS->PCGCR1 = 0x0000;
CSL_SYSCTRL_REGS->PCGCR2 = 0x0000;
CSL_SYSCTRL_REGS->PRCR = 0x00bf;
CSL_SYSCTRL_REGS->EBSR = (CSL_SYS_EBSR_PPMODE_MODE1 << 12)
| (0 << 8) | (2 << 10);//GPIO(11-6)
asm(" bit(ST1, #ST1_INTM) = #1");
number_of_bits_per_frame = (Uint16)(BITRATE * 20); // BITRATE in kbps
number_of_bytes_per_frame = (Uint16)(number_of_bits_per_frame>>3);
number_of_16bit_words_per_frame = (Uint16)(number_of_bits_per_frame>>4);
INTR_init();
PLL_init();
TIMER_init();
EZDSP5535_GPIO_init();
DMA_audio_init(DCT_LENGTH);
EZDSP5535_I2C_init(); /* Initialize I2C */
aic3204_init(6); /* Initialize codec */
EZDSP5535_LCD_init();
EZDSP5535_I2S_init(); /* Initialize I2S */
LCD_print("G722.1 Send ", 17, 0);
LCD_print("16kbps ", 8, 1);
EZDSP5535_SPI_init();
Si446x_Init();
EZDSP5535_SAR_init();
DiskInit();
FileInit();
AddFileDriver(SDCammand, NULL);
sam2coef_init();
coef2sam_init();
rawOutWords[0] = 0x6b21;
RfByte[0] = 0x21; RfByte[1] = 0x6b; // little-endian
old_mag_shift[0] = 0;
old_mag_shift[1] = 0;
asm(" bit(ST1, #ST1_INTM) = #0");
SpiWriteByte(CMD_GET_INT_STATUS, 0); // clear interrupt pending
while(1) {
if(pingpong >= 0) {
offset = (pingpong>>1) * DCT_LENGTH;
/*******************************************************************
* LEFT LEFT LEFT LEFT LEFT LEFT LEFT LEFT LEFT LEFT LEFT LEFT
*******************************************************************/
chn = LEFT;
samples = &rcv_l[offset]; // Read frame of samples from mem.
// Convert input samples to rmlt coefs
mag_shift[chn] = samples_to_rmlt_coefs(samples, mlt_coefs, chn);
// Encode the mlt coefs
encoder(number_of_bits_per_frame, mlt_coefs, mag_shift[chn], out_words);
byte16 = &RfByte[2];
byte16[-2] = 0x6b; byte16[-1] = 0x20;
DSP_word2byte(byte16, out_words, number_of_16bit_words_per_frame);
// process the out_words into decoder_mlt_coefs
decoder(out_words, mlt_coefs, &mag_shift[chn], &old_mag_shift[chn]);
samples = &xmt_l[offset]; // Write frame of output samples
// convert the decoder_mlt_coefs to samples
rmlt_coefs_to_samples(mlt_coefs, samples, mag_shift[chn], chn);
/*******************************************************************
* RIGHT RIGHT RIGHT RIGHT RIGHT RIGHT RIGHT RIGHT RIGHT RIGHT
*******************************************************************/
chn = RIGHT;
samples = &rcv_r[offset]; // Read frame of samples from mem.
// Convert input samples to rmlt coefs
mag_shift[chn] = samples_to_rmlt_coefs(samples, mlt_coefs, chn);
// Encode the mlt coefs
encoder(number_of_bits_per_frame, mlt_coefs, mag_shift[chn], out_words);
byte16 = &RfByte[number_of_bytes_per_frame + 4];
byte16[-2] = 0x6b; byte16[-1] = 0x21;
DSP_word2byte(byte16, out_words, number_of_16bit_words_per_frame);
// process the out_words into decoder_mlt_coefs
decoder(out_words, mlt_coefs, &mag_shift[chn], &old_mag_shift[chn]);
samples = &xmt_r[offset]; // Write frame of output samples
// convert the decoder_mlt_coefs to samples
rmlt_coefs_to_samples(mlt_coefs, samples, mag_shift[chn], chn);
if (FHandle != Not_Open_FILE) // Write output bitstream
FileWrite(RfByte, 2*number_of_bytes_per_frame+4, FHandle);
pingpong = -1;
sent_buffer = RfByte;
sent_buffer_cnt = 0;
}
if(spiIsrStatus == 1) {
bApi_Set_Send(43);
spiIsrStatus = 0;
}
if(sent_buffer_cnt < 2) {
if(gpioIsrStatus == 1) {
SPI_sendData(sent_buffer, number_of_bytes_per_frame+2);
sent_buffer += number_of_bytes_per_frame+2;
sent_buffer_cnt++;
gpioIsrStatus = 0;
CSL_GPIO_REGS->IOINTFLG1 = 0x0800;
}
}
// key = EZDSP5535_SAR_getKey();
key = -1;
if(key == SW1)
if(FHandle == Not_Open_FILE)
{
LCD_print("RECORDING......", 15, 0);
FHandle = FileOpen("A:\\VOICE000.TXT", FILE_FLAGS_WRITE);
}
if(key == SW2)
if(FHandle != Not_Open_FILE)
{
LCD_print("SAVE VOICE000.DAT", 17, 0);
FileClose(FHandle);
AllCacheWriteBack();
FHandle = Not_Open_FILE;
}
asm(" idle");
}
