18f67k22 adc problem

bolubeyi · Joined: 27 Apr 2012 Posts: 15 Location: TURKEY

hi i used pic 18f67k22 for my project. when i want to read temperature from lm35 or ntc, give me incorrect result. But when i connect power supply without chaning the same pine, give me correct result.

So I make a voltage divider (I used resistor) from supply voltage and give me a incorrect result. The same project using the toucj screen and i read correct adc result.

Where am I doing wrong? I do not know what could it be?

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Always post your compiler version if you think the built-in functions don't
work. It may be that your version has a bug. We can't check it unless
you post the version. It's given at the top of the .LST file for your project.
Example of version numbers:
http://www.ccsinfo.com/devices.php?page=versioninfo