AVR Freaks

 void VsSineTest(){
        unsigned char *p;
		unsigned int i;
		p = HelloMP3;
	    /* Reset MP3 chip */
	    //Mp3PutInReset();       /* Pull xRESET low -> hardware reset */
	    VS1003B_XRESET_L(); 
		_delay_ms(100);            /* 100 ms delay */

	    /* Send dummy SPI byte to initialize SPI bus of Atmel microcontroller */
	    VS1003B_WriteByte(0xFF);
		//SPIPutCharWithoutWaiting(0xFF);

	    /* Un-reset MP3 chip */
	    VS1003B_XCS_H();
		//Mp3DeselectControl();  /* Pull xCS high    */
	    //Mp3DeselectData();     /* Pull xDCS high   */
	    VS1003B_XDCS_H();
		//Mp3ReleaseFromReset(); /* Pull xRESET high */
	    VS1003B_XRESET_H();
		_delay_ms(100);            /* 100 ms delay     */

	    /* VS10xx Application Notes, chapter 4.8 ---------------------------------*/
	    /* As an example, let's write value 0x0820 to register 00 byte by byte    */
	    VS1003B_XCS_L();
		//Mp3SelectControl();    /* Pull XCS low, now SPI writes go to SCI port     */
	    VS1003B_WriteCMD(00,0x0820);
		VS1003B_WriteCMD(SCI_VOL,0x0000); //max volume
	
		//SPIPutChar(0x02);      /* Send SPI Byte, then wait for byte to be sent.   */
	    //SPIPutChar(0x00);      /* 0x02 was WRITE command, 0x00 is register number */
	    //SPIPutChar(0x08);      /* This byte goes to MSB                           */
	    //SPIPutChar(0x20);      /* ..and this is LSB. (0x20=Allow Test Mode)       */
	    VS1003B_Delay();
		//SPIWait();             /* Wait until Atmel MCU signals SPI write complete */
	    VS1003B_XCS_H();
		usart_pstr("WAITING FOR DREQ ! \n");
		//Mp3DeselectControl();  /* Pull XCS high, now SPI writes don't go to SCI port. */
        loop_until_bit_is_set(VS1003B_PIN,VS1003B_DREQ);
        usart_pstr("\n DREQ = 1 \n \n");
	    //while (!MP3_DREQ)      /* Wait for DREQ = 1                               */
	    //;           /* Do nothing while waiting for DREQ = 1           */

	    /* Send a Sine Test Header to Data port                                   */
	    VS1003B_XDCS_L();
		while (p <= &HelloMP3[sizeof(HelloMP3)-1])
		{
			VS1003B_WriteByte(pgm_read_byte(p++));
		}
		
		//Mp3SelectData();       /* pull XDCS low, now SPI writes go to SDI port    */
        
		VS1003B_WriteByte(0x53);
		VS1003B_WriteByte(0xef);
		VS1003B_WriteByte(0x6e);
		VS1003B_WriteByte(0x44);
		VS1003B_WriteByte(0x00);
		VS1003B_WriteByte(0x00);
		VS1003B_WriteByte(0x00);
		VS1003B_WriteByte(0x00);
	    
		//SPIPutChar(0x53);      /* - This is a special VLSI Solution test header - */
	    //SPIPutChar(0xef);      /* - that starts a sine sound. It's good for     - */
	    //SPIPutChar(0x6e);      /* - testing your code and the chip. */
	    //SPIPutChar(0x44);
	    //SPIPutChar(0x00);
	    //SPIPutChar(0x00);
	    //SPIPutChar(0x00);
	    //SPIPutChar(0x00);
	    //SPIWait();
		VS1003B_Delay();
	    //Mp3DeselectData();
	    VS1003B_XDCS_H();
	    _delay_ms(500);           /* 500 ms delay */

	    /* Stop the sine test sound */
		 VS1003B_XDCS_L();
	    //Mp3SelectData();
	    //SPIPutChar(0x45);
	    //SPIPutChar(0x78);
	    //SPIPutChar(0x69);
	    //SPIPutChar(0x74);
	    //SPIPutChar(0x00);
	    //SPIPutChar(0x00);
	    //SPIPutChar(0x00);
	    //SPIPutChar(0x00);
		
		VS1003B_WriteByte(0x45);
		VS1003B_WriteByte(0x78);
		VS1003B_WriteByte(0x69);
		VS1003B_WriteByte(0x74);
		VS1003B_WriteByte(0x00);
		VS1003B_WriteByte(0x00);
		VS1003B_WriteByte(0x00);
		VS1003B_WriteByte(0x00);
        
		
	    //SPIWait();
		VS1003B_Delay();

	    //Mp3DeselectData();
        VS1003B_XDCS_H(); 
	    _delay_ms(500);            /* 500 ms delay */
		
		usart_pstr("Sine wave test 's stoped, change to SPI High! \n");
		
		VS1003B_XDCS_L(); // Pull XDCS low
        /*
		for (i=0; i<2048; i++)
		{
			while (bit_is_clear(VS1003B_PIN,VS1003B_DREQ)); // wait here until DREQ is high again
			//SPIPutChar(0);
			VS1003B_WriteByte(0);
		}
		VS1003B_Delay(0xffff); // Wait until SPI transfer is completed
		VS1003B_XDCS_H(); // Pull XDCS high
		_delay_ms(500);
		*/
		
		VS1003B_SoftReset();

    }
	
	
	void main()
	{
		  unsigned char *p;
		   DDRB = 0b00000111;
		   PORT_INI();
		   PORT_DREQ();
		   VS1003B_SPI_Low();
		   usart_init(BAUD_PRESCALE);
		   usart_pstr("\n TESTING VS1003 with sine wave! \n");
	 while (1)
	 {
		usart_pstr("Testing sine wave begins! \n"); 
		VsSineTest();
		_delay_ms(15000);
		usart_pstr("Test complete! \n \n");
		  
		
	 }
	 
	}