ADC Windowed Periodic Vector System Definition

This MotoHawk™ block specifies an ADC Windowed Periodic System, which will allow a vector of time domain sampled data to be acquired.

Block ID

Library

MotoHawk_lib/Analog I/O Blocks

Description

This MotoHawk™ block specifies an ADC Windowed Periodic System, which will allow a vector of time domain sampled data to be acquired. It is used in conjunction with a set of ADC Windowed Periodic Vector Element Definition blocks and ADC Windowed Periodic Vector Result blocks.

Each ADC Windowed Periodic Vector Element Definition block that references this system will allocate an analog input to the windowed periodic sampling system that can then be referenced by an ADC Windowed Periodic Vector Result block via its name. Each element is sampled at the specified Sample Frequency and the results cached in a circular buffer, the depth of which is specified by the Max Window Depth. Thus at any instant in time there is Max Window Depth of data available for the element set.

The ADC Windowed Periodic Vector Result block allows a coherent copy of a portion of the acquisition buffer to be taken when the block executes. Thus the result block could, for example, be located within a PSP End Trigger in order to capture load current while an injector was operating. The figure below illustrates.

Block Parameters

Parameter Field	Values	Comments/Description
Name	'single-quote' enclosed alpha-numeric text	No special characters such as spaces, dashes, commas (underscore allowed). Select a unique name. This name shall be referenced by the ADC Windowed Periodic Vector Result and ADC Windowed Periodic Vector Element Definition blocks.
Resource	Drop-down list	Select appropriate resource. (None) implies that this behavior is not supported by the module.
Sample Frequency (kHz)	Numeric (Integer)	Defines the sample frequency of this ADC Windowed Periodic System.
Max Window Depth (us)	Numeric (Integer)	Defines the depth of acquisition. The larger the depth, the higher the RAM utilization.