Data I/O UniSite-xpi, User Manual

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4. Commands
4-28 UniSite-xpi User Manual
the Select Device command, UniSite-xpi displays a Manufacturer List
screen containing only the manufacturers found in the alg.ext file. If
this parameter is set to E and UniSite-xpi cannot find the alg.ext file,
UniSite-xpi displays the following message in the message bar:
Cannot access system file. Insert System disk.
K directs UniSite-xpi to select algorithms from the Keep Current
algorithms it finds on the disks in the disk drives. If you set
Algorithm Source to K and then choose the Select Device command,
UniSite-xpi displays the Keep Current Part List screen, as shown in
Figure 3-45. Keep Current algorithms are downloaded from
Data I/O’s Web site and provide immediate support for new device
algorithms and updated device algorithms. For more information,
see the Keep Current documentation behind the Keep Current tab at
the back of this binder.
C directs the programmer to select algorithms from the Custom
Menu algorithms it finds on the disks in the disk drives. If you set
Algorithm Source to C and then choose the Select Device command,
the programmer displays the Custom Menu List screen.
Note: See “Save System Parameters” on page 4-38 for instructions on how to
save your Algorithm Type and other parameter changes as power-up
defaults.
• Algorithm Media (File) (F,M)—There are 2 algorithm media options:
Floppy Disk (F) and Mass Storage Module (M). The device selection
operation will select the device algorithm from the designated
algorithm media.
Note: (Legacy) This parameter appears only if a Mass Storage Module (MSM) is
installed in UniSite.
• Checksum Calculation (4,8,D,B)—Determines the word size and
display of the checksum for all device operations. The Odd/Even
Byte Swap option affects this calculation. 4 directs UniSite-xpi to
calculate and display a 4-digit, 4-bit checksum. This is only for use on
4-bit devices. 8 directs UniSite-xpi to calculate and display an 8-digit,
8-bit checksum. This is the default and is the only option for 8-bit
devices. D directs UniSite-xpi to calculate and display the checksum
based on the number of bits per word in the device width. This
option is for use with 16- and 32-bit devices. B directs UniSite-xpi to
calculate and display the checksum based on the number of bits per
word in the device width, and also to display the 8-bit checksum.
• Data Word Width —Should match the data bus word width in the
target microprocessor system for the device being programmed. For
8-bit (or larger) devices, any word width between 4 and 64 may be
typed in. For 4-bit devices, your word width choices are 4, 8, 16, and
32. When performing a Quick Copy, the Data Word Width is set to
the device word width and restored to the original value after the
Quick Copy is complete.
UniSite-xpi always changes this parameter to match the selected
device’s width, with one exception: if the current Data Word Width is
16, your selected device’s word width is 8, AND the