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Manually
Downloading a
Driverdown manual
Download programs are supplied for use with the system setups described
earlier in this chapter. If you have a system setup that does not allow the use of
one of the supplied download programs (for instance, if you are using a
Macintosh® computer), you will need to manually download the driver. The
details of this process will be different for different system setups, but the basic
procedures are outlined below.
Preparing Memory for
Manual Downloading
Before you can manually download any drivers using either RS-232 or GPIB,
you must define the DRAM (Driver RAM) into which the drivers will be
transferred. DRAM memory is non-volatile.
1. Calculate the required total DRAM size. This is the total amount of
memory required by the mainframe for all of the device drivers you are
going to download.
Typical driver size will range from 40Kbytes to 100Kbytes. If you are in
doubt about the amount of memory needed for downloading your device
drivers, use the size of the GPIB driver file (ends in "DU") on the driver
disks. Remember that you must add the amount of memory necessary for
all of the device drivers you plan to download. You can see how much
RAM is available by using the DIAG:DRAM:CRE? MAX, DEF query.
NOTE Each driver will need additional system RAM at run time. Although this is not
part of the RAM necessary for the DRAM calculations, you should make sure
that you have enough DRAM to download the drivers, and enough system RAM
left after downloading to run the drivers. Most drivers will need less than
15Kbytes of additional RAM (per driver) at run time. If IBASIC is in the
system, it will take at least 150Kbytes to 200Kbytes of system RAM in addition
to the RAM used by the device drivers.
2. Create the appropriate DRAM partition using the DIAG:DRAM:CRE
command. Unless you have more than eight drivers to download, you do
not need to specify the second parameter.
WARNING Creating this memory partition will delete any NRAM or RDISK
partitions that you have defined, and any data in NRAM or RDISK
memory. You must redefine any such memory blocks after you have
defined the Driver RAM.
3. Reboot the system
5-10 Downloading Device Drivers