void AudioFilter::readValues() {
setRST(1);
setRST(0);
for (uint8_t i = 0; i < 7; i++) {
setSTROBE(0);
Timing::delayMicroseconds(65);
leftBuffer[i] = readAnalog(ADC_Channel_9);
rightBuffer[i] = readAnalog(ADC_Channel_8);
setSTROBE(1);
}
}
void MAX3421E::pinInit(void)
{
INT_DDR &= ~_BV(INT);
RST_DDR |= _BV(RST);
digitalWrite(MAX_SS,HIGH);
setRST(HIGH);
}
/* Constructor */
MAX3421E::MAX3421E( void )
{
// initialize SPI pins
pinMode( SCK_PIN, OUTPUT );
pinMode( MISO_PIN, INPUT );
pinMode( MOSI_PIN, OUTPUT );
pinMode( SS_PIN, OUTPUT );
digitalWrite( SCK_PIN, HIGH );
digitalWrite( MOSI_PIN, HIGH );
digitalWrite( SS_PIN, HIGH );
// initialize pins
pinMode( INT_PIN, INPUT );
pinMode( GPX_PIN, INPUT );
pinMode( RST_PIN, OUTPUT );
setRST( HIGH );
if (SPI_SAUxEN == 0) {
#ifdef WORKAROUND_READ_MODIFY_WRITE
SBI2(SFR2_PER0, SFR2_BIT_SAUxEN); /* supply SAUx clock */
#else
SPI_SAUxEN = 1U; /* supply SAUx clock */
#endif
NOP();
NOP();
NOP();
NOP();
SPI_SPSx = 0x0001U;
}
#ifdef WORKAROUND_READ_MODIFY_WRITE
SPI_STx |= SPI_CHx; /* disable CSIxx */
CBI(SFR_IFxx, SFR_BIT_CSIIFxx); /* clear INTCSIxx interrupt flag */
SBI(SFR_MKxx, SFR_BIT_CSIMKxx); /* disable INTCSIxx interrupt */
CBI(SFR_PR1xx, SFR_BIT_CSIPR1xx); /* set INTCSIxx high priority */
CBI(SFR_PR0xx, SFR_BIT_CSIPR0xx);
#else
SPI_STx |= SPI_CHx; /* disable CSIxx */
SPI_CSIIFxx = 0U; /* clear INTCSIxx interrupt flag */
SPI_CSIMKxx = 1U; /* disable INTCSIxx interrupt */
SPI_CSIPR1xx = 0U; /* set INTCSIxx high priority */
SPI_CSIPR0xx = 0U;
#endif
SPI_SIRxx = 0x0007U; /* clear error flag */
SPI_SMRxx = 0x0020U;
SPI_SCRxx = 0xF007U;
SPI_SDRxx = 0x0200U;
SPI_SOx |= SPI_CHx << 8; /* CSIxx clock initial level */
SPI_SOx &= ~SPI_CHx; /* CSIxx SO initial level */
SPI_SOEx |= SPI_CHx; /* enable CSIxx output */
SPI_SSx |= SPI_CHx; /* enable CSIxx */
}
void MAX3421E::pinInit(void)
{
//Reset pin mode = OUT
setRSTPIN();
// Pull SPI !SS high
setSSPIN();
set_SS(1);
// Reset
setRST(1);
}