Sa - serial analyzer, Serial analyzer -66 – GE 68K System User Manual

Page 92

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GE Energy Services

68K System Monitor

User's Guide

SWM0023 1.00 2

General

3-66

Full Release

SA - Serial Analyzer

Platform

þ

CPM

þ

D20
D20 Base

þ

D20 ME
D20 Base

o

D20/200
CCU Base

þ

D20/200 ME
CCU Base

þ

D25

Description

Use this command to monitor communications on one of the defined serial ports
(other than the assigned 68K Monitor port).

It uses serial I/O system transmit and receive call-outs to intercept all
communications on the channel.

Syntax

Below is usage and syntax information for this command

Command Format

sa port

Variables

None

Parameters

port

= serial port to monitor (COM#)

Example

Type sa com7 and press

ENTER

.

Results: This activates the serial analyzer monitor on

communications port seven (SIO7).

The monitor displays all communications on the
specified channel until it receives

CNTRL

-

C

on the

monitor channel. The display then returns to the
prompt.

Special
Considerations

This function cannot be used on the port assigned to 68K
Monitor
(COM0), the SPI port (_SPI), or the SCC1 port
(SCC1).

This function is completely non-intrusive. It cannot affect the
operation of the application that owns the monitored port.

Error Codes

If any of the following receiver errors are detected, these codes are displayed:

− over-run errors

OV

− parity errors

PA

− framing errors

FR

− detected breaks

BR.

Display Format

The monitor displays all data transmitted and received in hexadecimal format.

Transmit data is displayed in inverse video; receive data is normal video mode.

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