AVR-Chat

On 5 Jun 2007 at 11:01, A F wrote:

> could letting the adc input exceed aref cause damage that would manifest in  this manner?
> 


	My experience with the ATMega48 ADC tells me the following:

	- The ADC reading starts at zero again when the input voltage is 
higher than AREF voltage. 
	- So, if your input is higher than AREF, subtract AREF from the 
input and the difference will be your ADC reading.

	I wouldn't use that as a "feature"...

	Mark Jordan