Revised: 08 March 1988



                  TNC-2 Software Release 1.1.5 Notes
                  ----------------------------------


This document describes the differences between the latest release 
1.1.5 and the previous (1.1.4) release of TAPR software for the TNC-
2 Terminal Node Controller.

The new object image occupies almost 0x45FF bytes of EPROM.  The 
reported checksum on powerup is $BE for the standard release.

If you have the TAPR release with the Hex Loader, the checksum re-
ported will be $D6.  Note that you must type the letter "H" to tell 
the TNC to run the standard TAPR software every time you power up if 
you are using this release.

If you have the TAPR release with the KISS option, the checksum 
reported will be $85.  To operate KISS with this release, enter the 
command KISS ON, then the command RESTART (NOT RESET!).  The return 
to normal operation, enter the command PARAM AX0 255 at the NET> 
prompt if you are running the KA9Q TCP/IP software package.

                            NEW COMMANDS
                            ------------

BBSMSGS                                       ON|OFF    default: OFF

This command controls how the TNC displays certain messages in com-
mand and CONVERSE modes.  The messages affected are described below:


        MESSAGE                      EFFECT WHEN BBSMSGS ON
        -------                      ----------------------
*** CONNECTED to  xxxx    -  A newline is added just before the "***"
*** DISCONNECTED          -         "                     "
*** retry limit exceeded  -         "                     "
*** xxxx Busy             -         "                     "
*** FRMR sent             -         "                     "
*** FRMR rcvd             -         "                     "

*** Connect request: xxxx -   This message is omitted


The BBSMSGS command is primarily useful for host operation, pri-
marily with W0RLI and like bulletin board systems that require link 
status messages to begin in the first output column.

The connect request message is omitted during BBSMSGS mode.  This 
should be most useful for preventing corruption of messages when 
forwarding with small frames.

TXTMO                                             counter   default: 0

TXTMO is a new addition to the TNC health-group.  This register may 
accumulate counts as the TNC succesfully recovers from HDLC trans-
mitter timeouts.  This not a useful command for the majority of 
users.




                                FIXES
                                -----

o -  Release 1.1.4 suffered from a spurious condition where the HDLC 
     transmitter would time out.  When this happened, TXQOVFLW would 
     typically show a non-zero count.  Release 1.1.5 incorporates an 
     HDLC transmitter timeout feature to capture and recover from 
     the timeout error.

o -  DWAIT operation has been fixed



                      THE PACKET REVOLUTION CONTINUES!


                           Howard Goldstein N2WX
                           TNC-2 Software Design
                                   'n
                              Damage Control