Hi there, I'm using ADC interrupt mode in my prototype board. Everything is running now but I'm facing accuracy problem. Can someone help me? I need my accuracy to be +/- 0.5%. 1. I have my AVCC connected to Vcc. 2. Aref not connected. 3.Set free running mode 4.REFS1 = 0 , REFS0 = 0 (Choosed AVCC with external cap at Aref) -> what if I dun have caps coupled between AVCC and Aref? Will it affect the accuracy? Thanks. Andrew --------------------------------- Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com/a
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ADC accuracy in ATmega8535
2004-11-02 by Andrew Lim