Me, again ...with something strange (at least for me) !
I try to use ADC for reading a couple of buttons. I have two situations :
- three buttons, with 82 ohms, 164 ohms, 1448 ohms resistors ; ADC reading = 1023 nothing pressed ; 78 with button 1 pressed ; 144 with button 2 ; 605 with button 3 ;
- three buttons, with 300 ohms, 1300 ohms, 3110 ohms AND 100 Kohms in parallel ; ADC reading = 1013 nothing pressed ; 236 with button 1 pressed; 575 with button 2 ; 768 with button 3.

I tried with 2 version of code (for both situations):
Code:
 ADCON0.1 = 1
 WHILE ADCON0.1 = 1 : WEND
 adval.HighByte = ADRESH
 adval.LowByte = ADRESL
if adval > 10  and adval < 300 then  gosub LED1
...etc....
and

Code:
ADCIN 3, adval
if adval > 10 and adval < 300 then gosub LED1
...etc...
For first situation everything works fine, with both version of reading ADC !
BUT ... for second situation, NOTHING HAPPENS !!! I really not understand what I do wrong ... Can me point to the right direction ? Thanks in advance !

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