Help with LCD

[mister_e]

OK,
Just to make sure everything is done properly, first you must load the 20MHZ bootloader file in your PIC, be sure the HS fuse is set before programming it, then, change DEFINE OSC 4 to DEFINE OSC 20 and last step, load your code in your PIC.

Be sure you use the right capacitor values for the crystal, your PSU is properly filtered and it should work now.

Good luck!

[teknoman2420]

it still jumps around a little,
and not displaying correctly with 20mhz crystal
and the value keeps changing too much
why is that
also when i put my fingers on the thermister
it only changes from 686 to 750
that's with 10K ohm resistor from portA.0 to ground
that brings it down,
and the thermister is connected at portA.0 to VDD 5V
with thermister only it goes to highest value 1023 at 10 bit ADC
and is at or close to 5 volts
maybe i have wrong thermister
or because i'm only changing the temp a few degrese
am i doing it right
i guess i'm learned a few thing anyway

[Dave]

teknoman2420, Have a look at app. note AN685 from Microchip which dives into attaching a thermistor to a microcontroller. A good reference.

Dave Purola,
N8NTA