can anyone explain to me why is this the output?

[arkeint]

help! i don't understand why this is the output.

 

[FoxyRick]

Because the circuit/program is not sending the correct codes, I expect.

Without seeing more, that's all that can be said.

 

[barry]

1) Because you're not programming it correctly?
2) Because that IS what you're programming it to do?
3) Because it's broken?
4) Because you were bad in a former life?

 

[arkeint]

could the microcontroller be broken?

 

[barry]

could the microcontroller be broken?

I would suspect software

 

[FoxyRick]

I would suspect the designer :wink:

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Is this something you have built or programmed, or is it an existing piece of equipment that previously worked?

 

[arkeint]

found the program on the net then changed a bit in the output pinnings to have a neat routing in the pcb.

 

[barry]

Would you care to give us any more information? Like, what kind of processor? Did you assign proper direction to your I/O when you changed pins? Have you looked at signals with an oscilloscope?

 

[arkeint]

it's a pic16f877a, and i don't have an oscilloscope(still a student).

 

[FoxyRick]

Sorry, but our telepathy isn't working well today; not enough coffee I guess.

Can we see your (modified) schematic, and the code with your modifications highlighted?

That might help...

 

[ZASto]

Would like to help you, but, unfortunately, just sent my crystal ball for polishing :lol: