Interfacing With A Computer - Dataman S4 Manual

DATAMAN S4 MANUAL
or the keypad, the other device is ignored., until
S4 returns to the
command prompt >>.

Interfacing with a Computer.

Almost every S4 user will need to make a serial
link with a computer
at some time. Computers usually have a serial
port, through which
file transfers can be made, in much the same way
as files can be transferred
between disks. In fact the operating system file-
copying routines
can specify the serial device: MSDOS uses
COM1: or AUX:, CP/M refers
to RDR: and PUN: for example the command to
transfer a file to S4
from an IBM-type PC is:
@COMPUTER TEXT = COPY FILE.HEX
COM1:
The baud-rate, word-length, stop-bits and parity
setting must have
been set previously to the correct values. The
command to do this
is:
@COMPUTER TEXT = MODE
COM1:9600,N,8,1
S4 must be set similarly, and the file-format must
expect, in this
case, an Intel HEX file which is decoded as it is
received. Downloading
files from the operating system is likely to work
with no handshaking
problems, because S4 will receive any file at full
speed.
<$IComputer Operation>Computer
Operation<$&Computer> 15