Agilent Technologies E1301B Manually Downloading a Driverdown manual, Defined the Driver RAM

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

NOTE

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.

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