Now, I'm finally able to download the code into the MC, but there is still something wrong. It seems there is no prog running, All ports let my LED burn when I use them as GND. No matter if there is a prog in the MC or not.
My multimeter shows that most of the ports have either 4V or 3V!? And it won't change.
I don't know why.
I'm using Windows 2000 and a download prog from the company that made the baord. It's connected to the parallel port.
How can I get the machine going???