Agilent Technologies E1300B User Manual page 141

:DOWNload
DIAGnostic:DOWNload[:MADDress] < address> ,< data> writes data into a
non-volatile User RAM segment starting at address. The User RAM segment is
[:MADDress]
allocated by the DIAG:NRAM:CREate command.
Parameters
Comments
Parameter Parameter
Name Type
address numeric
data arbitrary block
program data
CAUTION: Be certain that all of the data you download will be contained
entirely within the allocated NRAM segment. Writing data outside of the
NRAM segment will disrupt the operation of the Command Module.
Most computers terminate an OUTPUT, PRINT, or WRITE statement
with a carriage return or carriage return and line feed. These
End-Of-Line characters must be either accounted for (NRAM segment
sized to accommodate them), or suppressed using an appropriate
IMAGE or FORMAT statement. Some helpful methods:
– Size the NRAM segment a little larger than the expected data block
– Control the End-Of-Line characters with format statements.
– Use the Definite Length Arbitrary Block Program Data format (see
example) to send your data rather than the Indefinite Length
Arbitrary Block Program Data format.
This command is generally used to download data into User
Configuration Tables. These tables allow the user to control the system's
dynamic configuration DOWNload uses word writes.
Address may be specified in decimal, hex (# H), octal (# Q), or binary
(# B) formats. DOWNload is done by word (16 bit) access so address
must be even.
Be certain that address specifies a location within the User RAM
segment allocated using DIAG:NRAM:CREate if you are downloading a
configuration table. DIAG:DOWNload can change the contents of
System RAM causing unpredictable results.
This command can also be used to write data to a device with registers in
the A16 address space. See :DOWNload:SADDress.
Related Commands: DIAG:NRAM:CREate, DIAG:NRAM:ADDRess?,
DIAG:UPLoad?, VXI:CONF:CTABle, VXI:CONF:DCTable,
VXI:CONF:ITABle, VXI:CONF:MTABle
DIAGnostic :DOWNload [:MADDress]
Range of
Values
0 to 16,777,215 (# HFFFFFE)
See "Parameter Types", in the
beginning of this chapter
System Instrument Command Reference 7-13
Default
Units
none
none