Padu wrote:

>Ok, I didn't have an 100k around, so I did it with a 68k. When I measure it
>from RA0 to GND, it is zero allright, but when I connect it to +5V, measured
>voltage is 1.27V. If I connect RA0 directly to VCC then it goes to 5V, but I
>think that would happen no matter what right?
>
Forcing an OUTPUT to +5 quite likely exceeded the current specification 
of the pin driver.
It is likely you have damaged the device.
Why it is an output is still a mystery to me.

>I'm using mikroPascal, which sometimes simplifies lots of things because of
>their libraries, but sometimes it screws me up because I have to debug their
>libraries for them....
>
>Here's a snippet of pascal:
>
>////////select Vref and analog inputs, in order to use ADC_read
>///////////////
>  ADCON1 :=   0;       // all porta pins as analog, VDD as Vref
>  TRISA  :=   $FF;
>////////////////////////////////////////////////////////////////////////////
>////
>
>and to read I use this command:
>
>        Ein := ADC_read(0);
>
>Do I need to do something other than TRISA := FF in order to set RA0 as
>input?
>
>
>I'm gonna try to examine the assembly code generate by mP to see what how
>they are initializing the ADC.
>  
>
A good idea!
BTW: What did you assign to ADCON0?

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