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Checking the data transfer on a serial line
The communication between the TV80 system and peripheral devices takes place using
"datagrams". These datagrams are self-contained and independent entities of data
carrying information. When setting up or maintaining the TV80 system, it is always
useful to verify that the communication lines with external devices are operational.
Prerequisites
This procedure assumes that a receiver has been connected to the Processor Unit by
means of a serial line, and that the communication line has been initiated. All the
relevant communication parameters have been defined. The peripheral system is turned
on, and it transmits data.
Procedure
1
Select the
Setup
icon to open the menu.
2
On the
Setup
menu, select
Installation
.
Observe that the
Installation
dialog box opens.
3
Observe the
I/O Setup
page on the right hand side of the
Installation
dialog box.
Every interface is presented as a small "block diagram".
4
On the relevant serial line communication, select
the inspection point at the left side of the port icon
in the “block diagram”.
The
Port Monitor
dialog box opens.
The
Port Monitor
dialog box allows you to study the communication stream on the
chosen serial line port.
Note
The
Port Monitor
dialog box is a tool for debugging purposes. It is neither required
nor intended for normal operation of the TV80 system.
5
Make sure that each communication port is functional. Make sure that there is data
traffic on the input port (shown in the
Rx Data
box).
In order to see this data traffic, the peripheral system must be turned on, and
transmitting information to the TV80 system.
If you are unable to see any data traffic on the communication port, we suggest
the following:
• Make sure that the peripheral system has been turned on.
• Make sure that the peripheral system is in fact transmitting information.
• Make sure that the cable has been properly connected.
• Make sure that you have connected the peripheral system to the communication
port that you are observing.
Simrad TV80 Reference Manual
Содержание Simrad TV80
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