Radio Shack TRS-80 Model III - Page 40

'
1.
TRS-80
MODEL
III
Loading
Errors
There
are
three
messages
that may
appear in
the upper right
of the
Display
during
a
tape input
operation.
They
tell you
that the
tape operation
was
unsuccessful
and
needs
to be repeated.
Message
Meaning
C*
Checksum
Error during
loading
of
a SYSTEM tape
D*
Data Error
during
loading of
a BASIC
program
BK
You
pressed
(BREAK) and
cancelled
the operation
The
first
two errors
may be
caused by
an incorrect volume
setting.
Adjust
the
volume and
try again.
If
you still have
problems,
recheck
the cassette
recorder
connections.
Another
possible
cause
is dirty recorder
heads. Clean
the heads
as
explained
in the
cassette
owner's
manual. If none
of this
helps,
the data
on the
tape
may
have been
destroyed
by static
electricity
or some
other cause.
Saving
a BASIC
Program
on Tape
When
you
want
a long-term
copy of
a BASIC program
(one
that won't
have
to be
typed in
again), simply
save
it on tape
with the CSAVE
command.
The
program
should
be in
memory.
Be sure you
have selected
the
desired
cassette
transfer
speed
(500
or
1500 baud). In
general,
you should
use 1500
baud,
since it
is
faster
and
requires
less
tape.
1
.
Insert
a blank
cassette into
the recorder
(use Radio
Shack's
leaderless
tape
for
best
results).
2
.
Prepare
the recorder
to RECORD
.
3. Type
:
CSAVE "P"
(ENTER)
The
Computer
will
save the
program
on tape.
When
the process
is
completed,
the
Computer
will display:
READY
>
In
this
example,
we used
"P"
as the file
name;
you
can choose
any
single
character
except
a double-quote.
Enclose
the
character in
double-quotes
as shown
in
our
example.
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