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From: hugibaz@floenz2.UUCP (Ingo Kraupa)
Newsgroups: comp.sys.cbm
Subject: Re: Aprotek Minimodem C
Message-ID: <2975@floenz2.UUCP>
Date: 3 Sep 89 15:52:02 GMT
References: <1363@jolnet.ORPK.IL.US> <5941@max.acs.washington.edu> <7491@microsoft.UUCP> <1405@jolnet.ORPK.IL.US>
Reply-To: hugibaz@floenz2.UUCP (Ingo Kraupa)
Organization: USRmail-Mailbox-System Nuernberg
Lines: 22

In article <1405@jolnet.ORPK.IL.US> jtl@jolnet.orpk.il.us (Joe Lynn) writes:
>In article <7491@microsoft.UUCP> kentsu@microsoft.UUCP (Kent Sullivan) writes:
>>But what the heck--buy a 2400 bps modem!
>
>I was under the impression that a C-64 won't *do* 2400 bps...  anyone
>have any further info?
>
>			--Joe Lynn


The C-64 does not support higher baud rates than 2400 bps, if you are using
the internal RS232 routines. The system will even slow down, if you do only
1200 bps. The internal software has to generate each bit of a byte, start-
stopbit and the parity. This is a hard job.
So, two years ago, a friend of mine thought about a solution of this problem.
He created a cartridge using a 6551 ACIA interface chip. With this chip the
C64 is able to speed up to 19200 bps. The costs are about 30$.
The problem is, there is no public domain software out, supporting this
cartridge (for the C64). There _is_ software for the C128.
Please ask me, if you are interested.

Ingo