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From: D Finnigan <dog_cow@macgui.com>
Newsgroups: comp.sys.apple2.programmer
Subject: Re: Zilog 85c30 RS-422 on Apple IIGS
Date: Sun, 25 Oct 2015 19:05:05 +0000 (UTC)
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John Brooks wrote:
> Has anyone played with programming the GS SCC for high-speed communication
> with a PC/Mac over RS-422?

Have you seen this yet?
http://macgui.com/downloads/?file_id=11347&keywords=8530

It's Merlin source to acces the serial port directly (for speed).

-- 
]DF$
The Marina IP stack for Apple II--
http://marina.a2hq.com/