Kantronics MT1200, Руководство пользователя, Страница: 35 / 157

You should now be back at the main HyperTerminal screen. Click File, then Save. The
next time you click Start, Programs, Accessories, Communications, you will see that
there is a HyperTerminal menu with a selection for “MT1200 9600.ht”. Clicking this will
get you immediately to the main HyperTerminal screen already set up for the MT1200.
Later you may wish to change the baud or com port you are using with the MT1200.
Before you can do that in HyperTerminal, you will first have to tell HyperTerminal to
“disconnect”; there is a button on the HyperTerminal screen to do that, looking like a
phone being hung up. Once disconnected, you can use the Properties menu to change
the HyperTerminal configuration.
Now turn on the MT1200.
AUTOBAUD
The first time your MT1200 is used, it runs an AUTOBAUD routine to assure that the
MT1200 baud is matched to the baud rate of whatever communication software you are
using.
The MT1200’ AUTOBAUD routine works as follows:
Step 1. AUTOBAUD sends and resends the message “PRESS (*) TO SET BAUD”
at one baud after another. When the MT1200’ baud matches that of your
terminal program, you can read this on your screen; if the two rates do not
match, the message appears garbled, if it appears at all.
Step 2. Any time while this message is being sent, whether it is readable or
garbled on your screen, enter the “*” character (SHIFT+8 key
combination).
Step 3. When the AUTOBAUD routine receives, the “*” character from the serial
port, it uses that character to determine the baud in use.
Step 4. AUTOBAUD then sets the MT1200’ baud (ABAUD) to match the baud
used.
Technical note: The MT1200’ Baud is stored in the MT1200 as the value of the
ABAUD parameter, so when you use the MT1200 later, it will start with that
baud. The MT1200 does not have a memory backup battery, but simply stores
changes made to parameter values.
Step 5. Finally, AUTOBAUD sends a “sign-on” message and asks for the user’s
CALLSIGN, which will also be stored in the MT1200 and used until
changed. At this point, the user is ready to give commands to the MT1200.
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