Subj : UART communications question.
To   : All
From : Ozz Nixon
Date : Thu Nov 16 2017 16:13:51

  Re: UART communications question.
  By: Ozz Nixon to All on Thu Nov 16 2017 03:35 pm

Okay, I changed the UART code to simply restore:

  DisableInterrupts;
  Port[$21] := OldPort21;                          {- Restore PIC status-}
  Port[$20] := $C7;                                {- IRQ0 1. priority-}
  EnableInterrupts;

This allowed me to terminate the answering test app, as soon as the next app
started it then dropped carrier. So this raises the question of, if I am doing
this correctly - does the next app (BBS or DOOR) need to set the DTR on? (I
think that is the line dropping me - rebuilding whie writing this).

Ozz
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