// reset for vs10xx
void VS10XX::reset()
{
putInReset();
delay(100);//it is a must
/* Send dummy SPI byte to initialize atmel SPI */
////SPIPutCharWithoutWaiting(0xFF);
deselectControlBus();
deselectDataBus();
releaseFromReset();
while (!readDREQ());
/* Set clock register, doubler etc. */
writeRegister(SPI_CLOCKF, 0xc0, 0x00);
Serial.print("\r\nClockF:");
Serial.println(readRegister(SPI_CLOCKF),HEX);
/* Wait for DREQ */
while (!readDREQ());
softReset();//comment this, as it will be executed everytime playing a music file.
writeRegister(SPI_WRAMADDR, 0xc0, 0x13);
/* Switch on the analog parts */
setVolume(40,40);
//setVolume(0xff,0xff);
//SPISetFastClock();
}
/** Soft Reset of VS10xx (Between songs) */
void VS10XX::softReset()
{
/* Soft Reset of VS10xx */
writeRegister (SPI_MODE, 0x08, 0x04); /* Newmode, Reset, No L1-2 */
//Delay(1);
while (!readDREQ()); /* wait for startup */
//setup I2S (see page77 of the datasheet of vs1053 )
//set GPIO0 as output
writeRegister(SPI_WRAMADDR, 0xc0, 0x17);
writeRegister(SPI_WRAM, 0x00, 0xf0);
//enable I2S (MCLK enabled, 48kHz sample rate)
writeRegister(SPI_WRAMADDR, 0xc0, 0x40);
writeRegister(SPI_WRAM, 0x00, 0x0C);
while (!readDREQ());
//LoadUserPatch();
}
void VS10XX::writeData(unsigned char *databuf, unsigned char datalen)
{
selectDataBus();
while (!readDREQ());
while(datalen --)
{
newSPI.transmit(*databuf ++);
}
deselectDataBus();
}
void VS10XX::sendZerosToVS10xx()
{
unsigned int i;
selectDataBus();
for (i=0;i < 2048;i ++)
{
while (!readDREQ());
newSPI.transmit(0);
}
deselectDataBus();
}