Data I/O UniSite-xpi, User Manual

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4. Commands
4-84 UniSite-xpi User Manual
Before you download data, specify the variables for the parameters listed
below, then enter a command in the Download Host Command field.
The information in the command line is a command that your host
computer (the computer containing the file to download) recognizes as
an instruction to begin the download operation. Press E
NTER
to execute
the download. UniSite-xpi displays
Data transfer complete
in the message area when the download is complete.
• Source (R,T)—Specifies which of UniSite-xpi’s ports is connected to
your host computer. Press S
PACE
to toggle between R (Remote port)
and T (Terminal port).
• Destination (R,D)—Specifies the destination of the data that is being
downloaded from the host computer. Press S
PACE
to toggle between
R (RAM) and D (disk).
• Filename —Specifies the name of the disk file in which to save the
downloaded file. This option appears only if you specify disk as the
Destination. The filename must follow standard DOS conventions,
and can include a drive designator. An example of a valid filename is
a:27256.dat
.
• I/O Translation Format —Selects the translation format of the data in
the file. A list of formats UniSite-xpi supports is available on the
Format Select screen in the Transfer Data menu, and also in Chapter 6
of this manual. If you know the number for your format, you can
enter it from this screen. If you do not know the correct code number,
go to the Format Select screen, find the format you want, and enter
the correct number from that screen. Entering the format number
from the Format Select screen changes the Translation Format
parameter on this screen. If you are using the Altera POF format, you
must select the desired POF device before you perform a data
transfer operation.
• I/O Addr Offset —Enter either the beginning hex address of the host
computer’s data file or the first address you want to capture within a
file. This field appears only when a non-JEDEC format has been
selected. UniSite-xpi subtracts this address from addresses received
from the host computer to determine where, either in the user RAM
or in the disk file, the data will be loaded. Entering FFFFFFFF sets the
first address received as the I/O offset for the rest of the download.
• Memory Begin Address —Specifies the first address, in hex, where
the first byte of data is stored from the source port. This field appears
only when a non-JEDEC format has been selected. If the destination is
RAM, it is a beginning RAM address; if the destination is disk, it is a
beginning disk file address. The default address is 0.
• User Data Size —Specifies the hexadecimal size, in bytes, of the data
block to be downloaded. This field appears only when a non-JEDEC
format has been selected. The default is 0, which directs UniSite-xpi to
receive all the data in the file. After the download is complete, a value
equal to the number of bytes received is set here. If a value less than
the size of the data received is entered, only the number of bytes
equal to that value are actually stored.