User's Manual Part 2

Chapter 3 — Configuring the Computer
CN3 Mobile Computer User’s Manual - PRELIMINARY 85
Configuring the CN3 Computer in a TCP/IP Direct Connect Network
Use the host computer to configure a wireless CN3 Computer in a TCP/IP
network. To send and receive configuration data, write a host application
that can communicate with the CN3 Computer directly through an access
point or through the network. Use the TMF protocol to send and receive
transactions between the host application and the CN3 Computer.
To set up the host computer, verify communication with the CN3 Com-
puter. To set up the application, prepare and write a host application that
can communicate with the IAS and send transactions to and receive trans-
actions from the CN3 Computer in this format:
where:
Example
In the host application, you want to get the current values of two configura-
tion commands from the CN3 Computer. Send the CG$+NABV transaction
from the host application
where:
Note: You can continue running an application on the CN3 Computer
while configuring it from the host computer.
TMF field commands
TMF field A 2-byte field containing one of these values:
CG Configuration Get request sent from the host application.
Cg Configuration Get response sent from the CN3 Computer to the host computer.
CS Configuration Set request sent from the host application.
Cs Configuration Set response sent from the CN3 Computer to the host computer.
commands The reader and configuration commands to set on the CN3 Computer or the current value to retrieve
from the CN3 Computer. To save configuration changes in flash memory, send the .+1 reader com-
mand as the last command. See the Command Reference Manual for a list of commands.
Note: The transaction header is not shown in this example. You do not
need a transaction header for a host application in a TCP/IP network, but
you do for a UDP Plus network.
CG is a TMF Configuration Get request.
$+ is the Change Configuration reader command.
BV is the Beeper Volume configuration command.