WIENER, Plein & Baus GmbH
5
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2 INTERFACE / FIRMWARE INFORMATION
2.1
VME chassis / bus slot location
Several VME bus lines as for instance interrupts or bus grant requests are daisy chained on the VME
backplane. In order for displaying and diagnosing these correctly the VM-DBA should be placed
between the VME master (typically in system slot 1 on the left) and the first slave module right of it..
Thus a suggested slot position would be slot 2. The VM-DBA should not be located left of a VME
master or to the right of any other slave module.
2.2
User interface
The VM-DBA bus display and bus analyzer is D32 and A16/A24/A32 VME slave module
with additional USB-2 interface for communication and data transfer.
2.3
Firmware
VM-DBA has two on-board, user-programmable SPI memories to store 2 different FPGA
configurations. SPI memory location 2 is the active one whereas location 1 is defined as protected and
can be used to restore operation and reprogram the active firmware
in case of a failure. Jumper 6
selects the active SPI for boot and should be kept in SPI2 position.
The current firmware is 10E00002.
The firmware can be updated via VME and USB. Please see chapter 10 for firmware upgrade
instructions.
