[Coco] TTL levels and the bit banger port.

Mark Ormond markormond at mtxsystems.com
Sat Jul 23 11:42:31 EDT 2011


I was thinking of picking up some ft232r to uart boards and install them into my coco and my commodore.

Now the serial i/o on the commodore is already +5 ttl levels, and I seem to remember that the coco bit banger port was rs232 compatible but not rs232 compliant(i.e. not +/- 12v). Does anyone know the voltages the bit banger port uses? Or is there a chip I could bypass to get to the TTL level signals?

Thanks,
Later,
dabone



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