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9.2 CPM2 EPROM Programming
Most of the CPM2 options can be changed in the RAM accessed by the system’s configuration. However, some less
important features are installed in the EPROM. The following features are located in the CPM2 standard EPROM and
programmed to the following default settings:
ROM Address
Default
Function
7000H
05H
Printer strobe pulse width Default = 5µs (microseconds)
7001-7002
3E80
Delay time × 0.25ms to resend message to COM1 if heartbeat is not selected.
Default = 16000 x 1ms = 16 s delay
7005-7006
0100H
Test Line Card 01 at 01:00
7007-7008
0115H
Test Line Card 02 at 01:15
7009-700A
0130H
Test Line Card 03 at 01:30
700B-700C
0145H
Test Line Card 04 at 01:45
700D-700E
0200H
Test Line Card 05 at 02:00
700F-7010
0215H
Test Line Card 06 at 02:15
7011-7012
0230H
Test Line Card 07 at 02:30
7013-7014
0245H
Test Line Card 08 at 02:45
7015-7016
0300H
Test Line Card 09 at 03:00
7017-7018
0315H
Test Line Card 0A at 03:15
7019-701A
0330H
Test Line Card 0B at 03:30
701B-701C
0345H
Test Line Card 0C at 03:45
701D-701E
0400H
Test Line Card 0D at 04:00
701F-7020
0415H
Test Line Card 0E at 04:15
Changes are rarely required, but these features may be changed to suit particular needs. To make changes to the EPROM
programming, first insert a standard CPM2 EPROM into an EPROM programming unit. Follow the instructions provided with
the EPROM programmer to select addresses and modify data. Ensure that the correct addresses are being programmed,
and verify the existing data in the address before making changes.
Section 9
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