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From: Ralph.Hyre@IUS2.CS.CMU.EDU
Newsgroups: comp.sys.apple
Subject: Re: PCPI info: Laing Electronics
Message-ID: <533844435.ralphw@ius2.cs.cmu.edu>
Date: Mon, 1-Dec-86 13:07:00 EST
Article-I.D.: ius2.533844435.ralphw
Posted: Mon Dec  1 13:07:00 1986
Date-Received: Tue, 2-Dec-86 03:12:15 EST
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>The 6 MHz Z80 wins, but communications can be a bit funky due to the
>fact that you use the card's RAM for the address space and you have
>to do the peek/poke stuff to get to the Apple's address space.  The
>XMODEM does it... has anyone hacked this into a PCPI Kermit yet ?

One solution here is a CP/M kermit which uses MODEM7 overlays/inserts,
which any kermit hacker could do.

A much ore useful solution is to write a driver for the various serial cards. 
I'll have to dust off my OEM package after Christmas to see what I can do 
about writing a driver that uses the Apple pascal firmware protocol (which 
most cards have anyway.)  Everything except BREAK can be dealt with at this 
level, and I don't believe the CP/M BIOS cares much about BREAK anyway).

A PCPI-specific hacking of comm packages will be just that and won't be of 
much help to anybody.

With a serial card-specific driver we should be able to run ANY generic
CP/M kermit (they typically use RDR: and PUN:).  This is something the PC 
clone people have learned.