I built myself a simple proto board to test ideas on, I made it a little larger than some and put on some bits extra for things I often need to do, IE switch relays so included some driver transistors etc, lots of leds...........


This is it when I started to build it up



I have not got it to work yet!

Simply flashing its led's has not yet worked.

I've done something wrong!

Now we could guess everything and still be wrong, only different thing I have done is used a 16mhz crystal as I didnt have a 20mhz to hand

Has anyone got/can build me a working hex to just flash the led's on port a or b

At least then I know if its hardware or software and can fix it accordingly, not asking for a masterpiece ! just a simple working on/off would have me doing backflips (well that would be a sight to see......)

Surely someone flashed an led and still has the hex sitting around..............

(I'd ask for pb or asm but want to rule out bad compilation, and wont refuse them, but the hex rules more out)

When I find what I have done wrong I will post my shame........