/*******************************************************************************
* Function Name : VsRamTest
* Description : Test VS1003's register,if received value is 0x807F,then
indicate the VS1003 is OK.
* Input : None.
* Output : None
* Return : None
*******************************************************************************/
void VsRamTest(void)
{
u16 regvalue ;
regvalue = 0;
ControlReset(SET);
Delay(100);
SPIPutChar(0xff); //����ҝ���ֽھ���Ч���ݣ�����SPI����
SCI_ChipSelect(RESET);
SDI_ChipSelect(RESET);
ControlReset(RESET);
Delay(100);
Mp3WriteRegister(SPI_MODE,0x09,0x00); // ����vs1003�IJ���ģʽ
while(DREQ); // �ȴ�DREQΪ��
SDI_ChipSelect(SET); // xDCS = 1��ѥ��vs1003�����ݽӿ�
SPIPutChar(0x4d);
SPIPutChar(0xea);
SPIPutChar(0x6d);
SPIPutChar(0x54);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
Delay(500);
SDI_ChipSelect(RESET);
regvalue = Mp3ReadRegister(SPI_HDAT0); // ����þ���־Ϊ0x807F���������å�
}
/*******************************************************************************
* Function Name : Mp3WriteRegister
* Description : Write VS1003 register
* Input : addressbyte--the vs1003 register address
highbyte--the hight 8 bits
lowbyte--the low 8 bits
* Output : None
* Return : None
*******************************************************************************/
void Mp3WriteRegister(unsigned char addressbyte, unsigned char highbyte, unsigned char lowbyte)
{
SDI_ChipSelect(RESET);
while(GPIO_ReadInputDataBit(DREQ_PORT,DREQ_PIN) == 0);
SCI_ChipSelect(SET);
SPIPutChar(VS_WRITE_COMMAND);
SPIPutChar(addressbyte);
SPIPutChar(highbyte);
SPIPutChar(lowbyte);
while(GPIO_ReadInputDataBit(DREQ_PORT,DREQ_PIN) == 0);
SCI_ChipSelect(RESET);
}
/*******************************************************************************
* Function Name : Mp3ReadRegister
* Description : Read VS1003 register
* Input : addressbyte--the vs1003 register address
* Output : None
* Return : The register value
*******************************************************************************/
u16 Mp3ReadRegister(unsigned char addressbyte)
{
u16 resultvalue = 0;
SDI_ChipSelect(RESET);
while(DREQ);
SCI_ChipSelect(SET); //XCS = 0
SPIPutChar(VS_READ_COMMAND); //���͜��Ĵ�������
SPIPutChar(addressbyte); //���͟Ĵ����ľ�֡
resultvalue = SPIGetChar() << 8;//��ȥ��8Ν����
resultvalue |= SPIGetChar(); //��ȥ��8Ν����
while(DREQ);
SCI_ChipSelect(RESET);
return resultvalue; //����16Ν�Ĵ�����־
}
/*******************************************************************************
* Function Name : Mp3SoftReset
* Description : Soft reset the VS1003 chip
* Input : None.
* Output : None
* Return : None
*******************************************************************************/
void Mp3SoftReset(void)
{
Mp3WriteRegister (SPI_MODE, 0x08, 0x20);
while(DREQ);
Mp3WriteRegister(SPI_CLOCKF, 0x8b, 0xe8);
Mp3WriteRegister(SPI_BASS, 0x00, 0x55);
Mp3WriteRegister(SPI_AUDATA,0xAC,0x45);
Mp3SetVolume(0x7a,0x7a);
//
SDI_ChipSelect(SET);
SPIPutChar(0);
SPIPutChar(0);
SPIPutChar(0);
SPIPutChar(0);
SDI_ChipSelect(RESET);
// Mp3WriteRegister(SPI_MODE,0x00,0x04);
}
unsigned char InitMMC()
{
unsigned char c;
//delay(100);
SelectMSD();
/* Allow MMC some time and clock cycles to reset */
for (c=0; c<200; c++)
{
SPIPutChar(0xff);
}
//Serial.println("allow mmc time over!");
//delay(100);
if(RebootMMC())
{
//Serial.println("Reboot MMC failed");
return 1;//not able to power up
}
return 0;
}
void VS1053_Start()
{
ControlReset(SET);
Delay(100);
SPIPutChar(0xFF);
SCI_ChipSelect(RESET);
SDI_ChipSelect(RESET);
ControlReset(RESET);
Mp3SoftReset();
Delay(100);
while(GPIO_ReadInputDataBit(DREQ_PORT,DREQ_PIN) == 0);
Mp3WriteRegister(SPI_MODE,0x08,0x00);
Mp3WriteRegister(SPI_CLOCKF,0x98,0x00);
Mp3WriteRegister(SPI_AUDATA,0xAC,0x45);
Mp3WriteRegister(SPI_BASS,0x08,0x00);
Mp3WriteRegister(SPI_VOL,0x0B,0x0B);
Mp3WriteRegister(SPI_STATUS,0,0b00110011);
while(GPIO_ReadInputDataBit(DREQ_PORT,DREQ_PIN) == 0);
}
/*******************************************************************************
* Function Name : VsSineTest
* Description : VS1003 sine test
* Input : None.
* Output : None
* Return : None
*******************************************************************************/
void VsSineTest(void)
{
Mp3PutInReset(); //xReset = 0 ��Νvs1003
Mp3Reset();
Delay(1000);//wait(100); //��ʹ100ms
SPIPutChar(0xff);//����ҝ���ֽھ���Ч���ݣ�����SPI����
SCI_ChipSelect(RESET);
SDI_ChipSelect(RESET);
Mp3ReleaseFromReset();
Mp3Reset();
Delay(500);//wait(100);
Mp3SetVolume(50,50);//��������
Mp3WriteRegister(SPI_MODE,0x08,0x60);//����vs1003�IJ���ģʽ
Delay(500);
while(DREQ); //�ȴ�DREQΪ��
SDI_ChipSelect(SET); //xDCS = 1��ѥ��vs1003�����ݽӿ�
//��vs1003�������Ҳ������0x53 0xef 0x6e n 0x00 0x00 0x00 0x00
//����n = 0x24, �蜨vs1003�����������Ҳ���ƾ��־��������㡽����vs1003��datasheet
SPIPutChar(0x53);
SPIPutChar(0xef);
SPIPutChar(0x6e);
SPIPutChar(0x24);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
Delay(1000);
SDI_ChipSelect(RESET);//����ִ�о������ӌ���ܴӜ�������ҝ����ҝƾ�ʾ�����
//�˳����Ҳ���
SDI_ChipSelect(SET);
SPIPutChar(0x45);
SPIPutChar(0x78);
SPIPutChar(0x69);
SPIPutChar(0x74);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
Delay(1000);
SDI_ChipSelect(RESET);
//�ٴν������Ҳ��Բ�����n־Ϊ0x44���������Ҳ���ƾ������Ϊ�����־
SDI_ChipSelect(SET);
SPIPutChar(0x53);
SPIPutChar(0xef);
SPIPutChar(0x6e);
SPIPutChar(0x44);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
Delay(1000);
SDI_ChipSelect(RESET);
//�˳����Ҳ���
SDI_ChipSelect(SET);
SPIPutChar(0x45);
SPIPutChar(0x78);
SPIPutChar(0x69);
SPIPutChar(0x74);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
SPIPutChar(0x00);
Delay(1000);
SDI_ChipSelect(RESET);
}