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I tried to delete the TRIS statements but in this way nothing works ! My led is always OFF (with #use standard_io)

Your solution isn't bad but I want to try to find why my interrupts don't works, and I have absolutly no ideas ! I tested many code on different PIC and the result is the same.

I modified my code following your instructions but one more time it doesn't works !
I tried to use standard_io() function but when I wanted to use it, my led was OFF at the begining of the program (n ...

Thanks for your answer.
I don't understand a thing: there is 3 years I used 16F877A dev board and I wrote exactly this code and it worked ! So why now it doesn't work !?
I read the datasheet but wh ...

Hi,
I have a big problem with these two interrupts, nothing works !! I connected a led on A5 and a button with a pull up and if I connect and push this button on RB0 (ext) or on RB4 (rb) nothing work ...

I understand the method but I have yet two questions:
-What is doing this line ?
changed_bits=old_bits~seen_bits;
more when I compile I have have a mistake with the "~"

- you say: &qu ...

Ok I understand, but I'm not a very good programmer and I never use flag. Can you explain me quickly how I can use a flag.

Thanks for your answer. I write to LCD with a infinite loop just to see if the program works. I try to remove the infinite loop and I insert a delay of 500ms after the message send to LCD in the ISR b ...

Hi all,
First I'm french so excuse me if I make faults in my explanation. So, I'm making a program and I use the interrupt of PB0 to increment a counter when I press a button. In function of this nu ...