22 May
2014
22 May
'14
1:46 p.m.
On Wed, May 21, 2014 at 5:02 PM, David Gesswein <djg at pdp8online.com> wrote:
IIRC UK built Creed 5-bit machiens sent 1.5 stop bits. I think some of
the Teletypes et al sent things like 1.42 stop bits (but only needed 1
stop bit time on receiving).
Many UART chips will send 1.5 stop bits if set ot 2 stop bits and 5 data
bits.
-tony
Actually you need to be configured with 2 stop
bits to be compatible with
an ASR33. You actually want to be compatible with your M8655 so check
the stop bit jumper on your board to see if it is set to 1 or 2. Anything
other than a real ASR33 normally uses 1 stop.
Some other (less common) electromechanical terminals need 1.5 stop bits.
IIRC that was common with five-level comms. It's generally safe to