Kantronics KPC-2 - Page 47

Sample
Terminal
Programs
The
following
BASIC
programs
can
be
used
to
operate
the
Kantronics
TNCs
with
the
computers
listed.
CAUTION:
Each
of
the
programs
is
a
simple
example
of
the
necessary
statements
required
to
configure
the
computer
for
operation
with
an
external
device
via
the
RS-232/TTL
port.
These
simple
terminal
programs
will
NOT
do
file
transfers
or
buffering
of
data
and
typing.
BASIC
terminal
program
for
the
VIC-20/C-64
10
CLOSE2
20
OPEN2,2,3,CHR$(6)
30
GET42,A$
40
REM
50
GET
B$
55
IF
B$=CHR$(133)
THEN
GOTO
100
60
IF
B$<>""THEN
PRINT#2,B$;
70
GET#2,C$
80
PRINT
C$;
Dm
90
GOTO
50
100
CLOSE2
110
END
The
#1
function
key
will
return
the
0-64
computer
to
BASIC.
If
graphics
characters
appear,
use
the
shift
key
with
the
Commodore
key
to
change
the
character
set.
For
use
with
the
VIC-20,
change
the
TNC
COMMAND
parameter
to
$05
(see
Commands
section
of
Commands
Manual).
Then
a
Ctrl-2
typed
on
the
VIC-20
will
return
the
TNC
to
the
Command
Mode.
(The
VIC-20
does
not
have
a
Ctrl-C
command.)
This
program
uses
a
3-wire
cable
as
described
in
the
Connecting
Your
Computer
section.
Wire
only
RXD,
TXD
and
SG.
SAMPLE TERMINAL PROGRAMS 41
© Copyright 1989, Kantronics, Inc. All Rights Reserved.
Duplication of this manual or the firmware without Version 2.85
permission of Kantronics, Inc. is prohibited. Installation Manual