Interesting. I've been trying to get a WiFi device
for the Commodore
 8-bits working consistently in 9600 bps mode, and have just been
 assuming the garbage characters I get when I receive a screenful of text
 all at once were due to buffer overruns. The garbage characters there
 look like actual garbage, not like partial CSIs like [3;1m or whatever. 
 Unless you're using an ACIA cartridge, 9600bps on the C128 is problematic,
 and impossible on the C64. 
 
 Not quite; someone named Daniel Dallmann found a way to do it on the
 user port, on both 64 and 128 (in the 1990s, I think). It's commonly
 called "UP9600". 
 
Ah, yes. I vaguely remember that. I remember it being tricky, too. Life
is a lot easier with a Turbo232 or equivalent ...
  But I find that I never get it to work
 non-problematically except when I use that one terminal emulator using
 the C128's VDC for display. 
I would imagine 2MHz mode certainly makes a difference here. I don't know if
NovaTerm runs the 8502 at that speed, but I would be surprised if it didn't.
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