Hi,
would someone mind checking my code please? I'm having issues with my ADC and can't seem to get it to perform a conversion. I posted the ADC loops, can paste the rest of the code if someone wants.
/*---------------------------------------------------
Initialise the ADC. Single Conversion
---------------------------------------------------*/
void ADC_Init (void)
{
/*Ensure ADC is not powered down*/
PRR |= (0<<PRADC);
/*Disable Digital Buffer on PinC 0 - 8*/
DIDR0 = 0b1111111;
/*Voltage Reference selection:
AVCC with external capacitor at AREF pin*/
ADMUX |= (0<<REFS1)|(1<<REFS0)|(1<<ADLAR);
/*Set frequency scaler to 128*/
ADCSRA=(1<<ADEN)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0);
}
/*---------------------------------------------------
Starting the ADC Conversion
Returns a float into an array.
---------------------------------------------------*/
uint16_t ReadADC(uint8_t ch)
{
//Select ADC Channel ch must be 0-7
ch=ch&0b00000111;
ADMUX|=ch;
//Start Single conversion
ADCSRA|=(1<<ADSC)|(1<<ADEN);
//Wait for conversion to complete
while(!(ADCSRA & (1<<ADIF)));
//Clear ADIF by writing one to it
ADCSRA|=(1<<ADIF);
return(ADCL);
}
I am using a mega324P
