>

[Chris Crosskey]

Tony wrote...

>
>I have just built BJ's extra ports for the atari off his web site. It
>seems to work OK when being used with just one active midi channel.
>However, the moment I play a whole song ie, at least four active
>channels at any one time, I get hanging notes, involuntary pitch bends,
>and general chaos. Is this normal or have I done something wrong? The
>add on hangs off the RS232 port and consists of a multiplexor, 74HC138
>with a few resistors and caps. It derives its power off the port itself.
>I have yet to hook the scope on it yet, because to be honest, I am not
>too sure what I should be loking for. I am using Cubase V3 with
>export.drv installed.
>

It's hardly surprising....the modem port on an ST only goes up to 19k2 
baud....If you need more ports get a Midex, I use one with v2 and it is 
solid as a rock

chrisc