Radio Shack TRS-80 Model III - Page 58

TRS-80
MODEL
III
Calling
$RSINIT
from
BASIC
Store
(POKE)
the desired
values into
the
RS-232-C
control
addresses
(
1
6888-
1
6890)
. If
any of
the default
characteristics
are already
correct, leave
those
addresses
unchanged.
If
you need
to change
the parity/word
length/stop-bit
code, see
SRSINIT
in the
Technical
Information
chapter.
Once
you have
calculated
the
desired
codes
for
baud rate,
parity/word
length/stop-bits
and
Wait/Don't-Wait,
you are
ready
to
call
SRSINIT.
Execute
the following
BASIC
statements
to define
a USR call
to
SRSINIT:
POKE
16526,
90
POKE
16527,0
X=USR(0)
When
the last
statement
has
been
executed,
the RS-232-C
is initialized.
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