symphony for dot matrix printers - test-drb@ccmp.vtda.org

8 Sep 2001

From: Jim Tuck &lt;technos(a)nerdland.org&gt;
...
 D'ya know if they ever fixed the mid-bitstream
problem that was common
early with the
Trash and later with the Atari and their MPI over cassette interface? I
had one of the
Atari setups, nice so long as you were only using it like a multi-cable
PtP setup. 

Yes.  One fix for the cload TRS80 problem was an internal counter based
oneshot that would clear the RS flop at the ttl end of the CLOAD read
hardware.
The interface depended on the transistion detector being reset by
software
and sometimes that didnt happen and it would get lost.

The other problem was if you were doing back to back (cpu to cpu) CLOAD
CSAVE the clock on one could be way off and after a minute or so of
data transfer the recieving system would get behind.

Allison