AD7124 - Register einstellen

#define AD7124_READ 0x40

#define AD7124_WRITE 0x00

#define AD7124_COMM_REG 0x00

#define AD7124_STATUS_REG 0x00

#define AD7124_CONTROL_REG 0x01

/* adc config register */

#define AD7124_FULL_POWER 0xC0

#define AD7124_LOW_POWER 0x00

#define AD7124_MID_POWER 0x40

#define AD7124_DATA_STATUS 0x04

#define AD7124_INT_CLK 0x01

#define AD7124_CONTIN_MODE 0x00

void ad7124Init (void)

{

uint8_t i;

for (i = 0; i < SPI_BUFFER_SIZE; i++)

{

spiTransmitBuffer[i] = 0xff;

spiReceiveBuffer[i] = 0xff;

}

sspiTransmitByte (AD7124_READ | AD7124_STATUS_REG);

sspiReceive (spiReceiveBuffer, 1);

/* write adc control register */

spiTransmitBuffer[0] = AD7124_WRITE | AD7124_CONTROL_REG;

spiTransmitBuffer[1] = AD7124_CONTIN_MODE | AD7124_DATA_STATUS;

spiTransmitBuffer[2] = AD7124_FULL_POWER | AD7124_INT_CLK;

sspiTransmit (TransmitBuffer, 3);

sspiTransmitByte (AD7124_READ | AD7124_CONTROL_REG);

sspiReceive (ReceiveBuffer, 3);

}