277
Chapter 6, IBASIC Controller
Interfacing to the IBASIC Controller using Serial Ports
Serial Port 9 Configuration
Table 33 on page 278
and the following paragraphs describe how to configure
Serial Port 9 for communications with an external PC or terminal. Implications of
the various choices are discussed.
1. Under the
To Screen
menu, select
More
, then select IO CONFIG.
2. The I/O CONFIGURE screen will be displayed.
3. Set the
Serial Baud
,
Parity
,
Data Length
,
Stop Length
, and
Flow Cntl
fields to match your PC or terminal settings. The recommended settings are shown in
table 33 on page 278
. These settings will be retained by the Test Set. They will not
change if the Preset key is pressed, if the Test Set receives a *RST Common Command,
or the power is turned on and off.
4. Set the
Serial_9
field to
Inst
. This routes Serial Port 9 to the
IBASIC Command
Line
field. Characters typed on the external PC or terminal will now appear in the
IBASIC Command Line
.
5. Set the
IBASIC Echo
field to
ON
. This will cause IBASIC character output from
commands (such as LIST, PRINT or DISPLAY) or error messages to echo characters
to Serial Port 9 (the characters will in turn show up on the external PC or terminal
screen). This will allow program listings and syntax error messages to be seen on the
external PC or terminal.
6. Another method which can be used to output characters to the external PC or terminal
is to execute the IBASIC command, PRINTER IS 9. This causes IBASIC to direct all
print output to Select Code 9. Select Code 9 is the Test Set’s Serial Port 9. Select Code
1 is the Test Set’s CRT. Select Code 1 is also the default address for the PRINTER IS
command, so all program printer output defaults to the Test Set’s CRT (unless changed
with the PRINTER IS command).
7. Set the
Inst Echo
field to
ON
. This will cause characters to be echoed back to the
external PC or terminal as they are received at Serial Port 9. If the echo feature of the
external PC or terminal is also enabled all the characters sent to the Test Set will be dis-
played twice on the external PC or terminal. Enable echo on only one device, either the
Test Set or the external PC or terminal.
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