Serial Configurations (was Devilish Altair Serial ConfigurationProblem)

[Allison]

>
>Subject: Serial Configurations (was Devilish Altair Serial ConfigurationProblem)
>   From: "Richard A. Cini" <rcini at optonline.net>
>   Date: Sun, 31 Jul 2005 12:35:05 -0400
>     To: "'General Discussion: On-Topic and Off-Topic Posts'"	<cctalk at classiccmp.org>
>
>All:
>
>	The problems I'm having have to be related to status bits and
>device initialization. The board is an SSM 2p+2s which is based on the
>TMS6011 (which has lots of equivalent UARTs such as the COM2502, 2017,
>TR1402, AY3-1015). The SSM board is very flexible -- I can change status
>bit order and polarity to match almost any configuration need. Right now
>I have it strapped to match the Altair Revision 1 SIO board (ports 0/1,
>RxStat=bit0, TxStat=bit1, active high polarity). I've also tried TxStat
>at bit7.

That should work.

>
>	Does someone have sample working code for initialization, input
>and output? I have a few datasheets but none of them give sample code
>sequences. I'm missing something here and I'd appreciate a push.

OH, one more detail.. Most of the MITS software when loaded inits 
based on the front pannel sense switches (IN FFh).  The configuration
sets the board in use and bits.  T he setting are in the MITS software
manuals.

Allison