static void init_adc()
{
LCDclr();
LCDGotoXY(3,0);
LCDstring((uint8_t *)"Initing...",10);
AD7793_Reset();
if(!AD7793_Init())
{
LCDclr();
LCDGotoXY(2,0);
LCDstring((uint8_t *)"ADC Error!",10);
return;
}
LCDGotoXY(0,1);
LCDstring((uint8_t *)"S1...",5);
adc_init_channel(AD7793_CH_AIN1P_AIN1M);
LCDstring((uint8_t *)"OK S2...",9);
adc_init_channel(AD7793_CH_AIN2P_AIN2M);
LCDstring((uint8_t *)"OK",2);
adc_current_channel = AD7793_CH_AIN1P_AIN1M;
adc_change_channel_and_trigger_delay(adc_current_channel);
LCDclr();
}
/**
@brief Initialization
@return none
**/
void AD7793_Init(void)
{
uint32_t ui32reg_value;
SPI_Init(); /* SPI initialization */
AD7793_Reset(); /* Reset ADC converter */
ui32reg_value = (uint32_t) (AD7793_GAIN << 8); /* Set ADC gain */
ui32reg_value |= (uint32_t) AD7793_REFSEL; /* Select internal reference source */
ui32reg_value |= (uint32_t)AD7793_BUF; /* Configure buffered mode of operation */
AD7793_WriteRegister(AD7793_REG_CONF, ui32reg_value); /* Set configuration options */
AD7793_WriteRegister(AD7793_REG_IO, 0x02); /* Set IOUT2 to 210 uA */
}
