ADCIN question

[Darrel Taylor]

IOFSCS_8MHZ     Hmmm, dyslexia day at Microchip

<img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=2858&stc=1&d=122145428 7" /><!-- -->

Your device line is OK, just pointing out an oddity.
<hr>

> how do I figure out what value will get placed in the Vin variable?

1 decimal place ...

Volts = (Vin+1) */ 50

2 decimals ...

Volts = (Vin+1) */ 500

[Darrel Taylor]

I read that question again, and maybe you want the other way around.

> how do I figure out what value will get placed in the Vin variable?

With 8-bit resolution, the values will range from 0 to 255.

If the input is 2.5 volts, then the value that gets placed in Vin will be ...

255 / (5 / 2.5) = 127

For 0.7v that's ...

255 / (5 / 0.7) = 35

hth,

[Greg McFadden]

thanks! all!. This is all quite new to me. the last thing I programed was some cfd in fortran 95, so the hardware side of things is different.

I think I may end up going to a PIC12F683 just for flexibility, as I can still (barely) fit it on the circuit board I am making.