1260-00C User Manual
Operation 3-4
Setting the Logical
Address, GPIB
Primary Address,
and Servant Area
Size
To change the logical address, GPIB primary address, and
Servant area size, run the non-volatile memory configuration utility
described in Chapter 5, Non-volatile Configuration.
The logical address can be changed by setting DIP switch SW1.
By default, all the switches are set to the up position (0xFF). At this
setting, the 1260-00C reads the logical address from the onboard
EEPROM. To change the logical address, set the switches to the
hex value of the logical address. Switch position 1 is the MSB; 8 is
the LSB. Up is logical 1; down is logical 0.
Verifying the
Installed RAM Size
Up to 4 Megabytes of local RAM is factory-installed on the
1260-00C, but is configured to use the minimum amount of
memory is 512 kilobytes. Table 3-2 lists the RAM configurations
and their associated switch settings. Use this information to
change the board configuration.
Table 3-2. Installed RAM Configuration
Installed Memory Size
Switch S6 Setting
Switch S7Setting
512 kilobytes
OFF
OFF
1 Megabyte
OFF
ON
2 Megabytes
ON
OFF
4 Megabytes
ON
ON
Table 3-3 shows the relationship between the amount of installed
memory, local address range occupied by the memory, and the
range of VXI A24 addresses accessible by the 1260-00C as a bus
master.
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