Stable ADC readings

[mister_e]

Dunno buddy, replace your resistor with LED to Vdd and see what happen, Code seems to be OK.

On your PIC16F877, make sure you have all VDD and VSS pin connected, MCLR to VDD and the right capacitor around the crystal. If you're using an >4MHz one, set the HS_OSC fuse. Always make sure you also disable LVP in the configuration fuse too.

[mazoul72]

Dunno buddy , your program Code works very well with some resistors and one led on my PIC Hardware platform test .
With it , the intensity varies according to different buttons .
Perhaps microcode studio with 15 days trial .(compiler 3.0.0.1) ?
my programmer is willem with winpic800 .

[mazoul72]

i 've just try compiler 2.60 plus patch 2.60c under microcode studio 3.0.0.5
and verify fuse under willem (hs) , always the same .
arg , no understand why if the code is good .........................../

[mazoul72]

STUPID I AM , no pull-up resistors for RA2 and RA3....

[Ioannis]

Post #52

Ioannis

[mister_e]

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[mazoul72]

Hello,

i tried with my car radio , it works well but a little slow for buttons reaction .
Perhaps the pause ...
I will try to integrate interrupts with it.
many thanks Steeve.

regards
Hervé