PDA

View Full Version : Setting Vref in 12F675



Peter1960
- 19th March 2005, 04:55
Hi All.
When you use the command ADCIN, does this set Vref automatically to Vdd?

If Not, can someone please advise?

Thanks.

Peter

a.majid
- 23rd March 2005, 01:59
Hi Peter

No.
You must set the bits of ADCON0.
If bit 6=0 ...Vdd is reference.
If bit 6=1 ...AN1(GP1) is reference.(To do this you must set GP1 is analog)

You can find details on page 43 of 132 of Microchip Pic 12F629/675 data sheet.
(www.microchip.com)

a.majid