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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