Olympia People, User Manual

Page: 96 / 137

Initialization of the
Serial Interface
Program V 2 4 (RS232)
CP/M-86 controls all the peripheral
devices attached to your
computer. These can include
storage devices such as disk
drives, input devices such as
keyboards or modems, and
output devices such as printers,
modems and screens.
To keep track of input and
output devices, CP/M-86 uses
logical devices. CP/M-86
associates physical devices with
the logical device name. For
example, the default console
input device is the keyboard
and the default console output
device is the screen.
The PEOPLE Personal
Microcomputer with the CP/M-
86 Operating System defaults all
print instructions through the
parallel interface.
The V24 (RS232) utility program
is designed to initialize the
serial interface for both input
and output.
After you have booted up the
system:
• Type: V24
• Press Y to execute program
The parameters can now be set for the serial
interface. The device you are outputting to or
receiving information from must be preset with
the same specifications.
The screen will then prompt:
Mode: RTS/CTS or XON/OFF? (R/X)
RTS/ CTS or XON/XOFF are handshake
protocols which control the overflow of data.
RTS/CTS, Ready to serid/Clear to send protocol
is controlled through the hardware. The
XON/XOFF protocol is controlled through the
software. The PEOPLE Personal Microcomputer
and the output device must have the same
specifications.
• Press an X to execute the X/ON/XOFF
The next question
Baud rate? (150-9600)
will appear on the screen.
The baud rate is the speed in which data is sent
from the terminal to the output device.
• Type: 9600 [RETURN]
The system is now asking
Character length? (5-8)
The character length refers to the data bits being
sent.
• Press the [RETURN] key
Your screen will display:
Program V24 Version 2.1 for CP/M -86
Initialization of the
Serial Interface of the
OLYMPIA Microcomputer People
(c) 1983 OLYMPIA INTERNATIONAL
This utility may be used to set the parameters of the
serial interface of your People microcomputer.
Execute program? (Y/N)
O O LYM PIA
• Type: 8 [RETURN]
The next prompt
Number of stop bits? (1/1.5/2)
A stop bit can vary from 1, 1½ to 2.
• Type: 2 [RETURN]
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