Hello All,

I am attempting to write a simple adc polling function (the atmel examples use interrupts which I don't want to use), and it's not working. Here's essentially what I am doing

<code>
uint32 adc_get_data(uint32 channel)
{
uint32 data;
ADC_EnableChannel(AT91C_BASE_ADC, channel);
ADC_StartConversion(AT91C_BASE_ADC);
while((adc->ADC_SR & (1 << channel)) != (1 << channel)); // wait for conv to finish

data = ADC_GetConvertedData(AT91C_BASE_ADC, channel);
ADC_DisableChannel(AT91C_BASE_ADC, channel);
return data;
}

int main()
{
/** all inits and configs **/
while(TRUE)
{
data = adc_get_data(ADC_CHANNEL_5);
printf("%d\n\r", data); // serial dbgu port configured
}
}

</code>

However, on the serial port, I'm reading all zeros. what am I doing wrong?

I appreciate your help!