Hello there.
I recently finished a 5x5x5 cube wich I control it with a PIC16F877. I managed to make a program for it in assembler but when I load it into the chip it does nothing. Did I did something wrong? I use pnp 2N2907 tranzistors for the columns (+) from ports B0 all the way to E0 (25 ports in total) and npn 2n2222 tranzistors for the layers (-) from port A0 to A4 and when I give 1 to port A0 and 0 to port B0 it should light up a LED.
I have created some animations and the display of some texts and numbers by playing with 0 and 1 signals (full program).
Please help. Here is the program:
Full program: http://www19.zippyshare.com/v/57753727/file.html
Program to light a LED: http://www15.zippyshare.com/v/8474248/file.html
and here are some pic's of the cube and the schemes:
cub pics: http://www7.zippyshare.com/v/8946680/file.html
http://www7.zippyshare.com/v/85085926/file.html
schemes: http://www18.zippyshare.com/v/74116052/file.html
http://www16.zippyshare.com/v/57398819/file.html
Maybe is something that I declared wrong.
P.S.: I have checked the circuit giving 0 and 1 signals from the chip socket and it works so the circuit is ok.
Many thanks. Cheers
Sorry for my english