Software Library Reference Manual for VME 429
205
Section 11 - Notes
11.2
Definition of Terms
Application
Interface
Refers to software interface between the API S/W Library function calls
and the API Target S/W.
Big Endian
a system of memory addressing in which numbers that occupy more than
one byte in memory are stored "big end first" with the uppermost 8 bits at
the lowest address.
Data Buffer
an area of memory on the AIM 429 device (global RAM) assigned by the
programmer to accommodate 429 transfer(s)
Driver Command
command used by the AIM Target s/w to control the 429 device
FLASH
page oriented electrical erasable and programmable memory
function
a self-contained block of code with a specific purpose that returns a
single value.
Header File
file containing C++ code consisting of definitions which are used by the
executable code
interrupt
a signal from a device attached to a computer or from a program within
the computer that causes the main program that operates the computer
(the operating system) to stop and figure out what to do next
Little Endian
a system of memory addressing in which numbers that occupy more than
one byte in memory are stored "little end first" with the lowest 8 bits at
the lowest address.
Prototype
a prototype of a function provides the basic information that the compiler
needs to check to determine that a function is used correctly
S-Record
An S-record file consists of a sequence of specially formatted ASCII
character strings. An S-record will be less than or equal to 78 bytes in
length. The general format of an S-record follows:
+-------------------//------------------//-----------------------+
| type | count | address | data | checksum |
+-------------------//------------------//-----------------------+
scenario
Term used to describe specific dynamic data generation schemes for
fields within a label transfer. Two scenarios per channel can be defined,
to allow a scenario switching caused by a special event on a receive
channel.
spg sample
program
Strobe
a strobe is a signal that is sent that validates data or other signals on
adjacent parallel lines
Target
Refers to the software/communication active on the AIM 429 device
Transfer ID
an ID number associated with the 429 transfer structure that defines the
characteristics of the 429 transfer
Trigger
A condition defined by the user that defines when the Receive Monitor is
to start data capture.
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