Troubleshooting with software
42
SYNTAX
SP addr32 {data16}
EXPLANATION
Use this command to write data to a logical port specified with a logical address. Data
must be entered in words.
EXAMPLE
The process data transfer is tested between two MVB devices. First data is written to
the source port of the MVB module in Rack A and then read from the corresponding
sink port in the MVB module in Rack B.
Prior to the test the MVB modules in the two racks must contain the proper application
and be connected with an appropriate cable. If MVB ESD modules are used
terminators must be connected to the free bus connectors of the MVB modules. If MVB
OGF modules are used the both optical fiber cables must be connected to the modules.
For detailed information about testing, contact EKE-Electronics LTD.
Test data is written to the source port with command ‘sp’ (set port). The parameters are
the port address (‘8’) and the data words (‘1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f, 1111h’).
Then the download/terminal cable is moved to the MVB module in Rack B. The data
is read from the sink port with command ‘rp’ (read port), the port address as a
parameter.
Write:
dbg>sp 8 1 2 3 4 5 6 7 8 9 a b c d e f 1111
Read:
dbg>rp 8
The output to command ‘rp’ should be as follows:
0001 0002 0003 0004
0005 0006 0007 0008
0009 000A 000B 000C
000D 000E 000F 1111
5.7.7 TEST_EEPROM (D)
This command alters the functionality of the Multifunction Vehicle
Bus. Consider the operative situation carefully before using this
command on board a train.
SYNTAX
TEST_EEPROM
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