Fast and simple adc read

[megahercas6]

Posted on December 02, 2011 at 18:15

Hello, i am working on small oscilloscope,

but i can't get adc value from PC0 leg (ADC123_IN10) can some one give code or example how to read adc value on demand ? like that: while(i<480){ int i,a=0; a[i]=ADC_READ; i++; }

[Tesla DeLorean]

Posted on December 02, 2011 at 20:50

I'm pretty sure you're going to have to wait for the conversion to complete, as it is not an instantaneous process. Either have it converting on a period basis, or initiate the conversion before you need the result.

The fw library has several clear ADC examples as I recall. You could abstract ADC_READ as a function that waits for the current conversion to complete, returning that result after starting another conversion.

[megahercas6]

Posted on December 02, 2011 at 22:34

i found working code for my application in examples folder.

now i have nice looking oscilloscope :) thank you clive1 for continuous help (y)