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Bluchip PIO-48

Bluchip PIO-48

‎12-09-2002 04:53 AM

Hi,

I have a Bluchip PIO-48 board which consists
of 2 8255 I/O chips I/O mapped at 0x300 (PORTA)
etc.
I have set the ports to Inputs but I'm gettting
weird results with byte = inp (PORTA) instructions.

Does anyone have any experience of using these
boards or with using the inp() functions for
direct IO ?

Cheers
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