AMX AXP-AI8 ANALOG 8-INPUT BOARD Manual do Utilizador descarregar pdf (Página 23)

DNA/DNR-AI-217 Simultaneous Sampling Differential Analog Input Board

Chapter 3 19

Programming with the Low-level API

Tel: 508-921-4600 www.ueidaq.com Vers: 4.5

Date: April 2013 DNx-AI-217 Chap3.fm

United Electronic Industries, Inc.

Chapter 3 Programming with the Low-level API

The PowerDNA cube and PowerDNR RACKtangle and HalfRACK can be pro-

grammed using the low-level API. The low-level API offers direct access to Pow-

erDNA DAQBios protocol and also allows you to access device registers

directly.

However, we recommend that, when possible, you use the UeiDaq Framework

High-Level API (see Chapter 2), because it is easier to use. You should need to

use the low-level API only if you are using an operating system other than Win-

dows.

For additional information about low-level programming of the AI-217, please

refer to the PowerDNA API Reference Manual document under:

Start » Programs » UEI » PowerDNA » Documentation

Refer to the PowerDNA API Reference Manual on how to use the following low-

level functions of AI-217, as well as others related to cube operation:

Function

Description

DqAdv217Read

Returns continously sampled data from input channel.

DqAdv217GetPgaStatus

Returns the PGA status of the AI-217.

DqAdv217SetCfgLayer

Set advanced layer configuration parameters for the AI-217.

DqAdv217SetCjcAvg

Overrides/restores the default averaging factor used by CJC channel.

DqAdv217SetFIR

Convenience function to configure the FIR and decimation factor.

DqAdv217SetPll

Configures custom sampling rates for DACs.

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