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working with 82C55

Thread starter cardoso115
Start date Apr 13, 2004

Status: Not open for further replies.

Apr 13, 2004

cardoso115

Computer

Hello, has anyone worked with 82C55?

I'm trying to access it via memory mapped I/O with the 80C515. But it seems like it has a mind of it's own. The control word doesn't remains there and the ports don't change states when i order them to!

I'm writing my code in C.

Thanks in advance, Carlos Cardoso