Horner-apg QX651 OCS Manuel d'utilisateur télécharger pdf (Page 35)

MAN0798-04-EN CH. 8

August 20, 2009 Page 35 of 95 ECN # 979

CHAPTER 8: HIGH SPEED I/O (HSC / PWM)

8.1 Overview

A QX base used with a BP43 provides High Speed I/O. The High Speed I/O includes both a High Speed

Counter (HSC) and a Pulse Width Modulation (PWM) functionality for a variety of standard and complex

applications as shown in

Table 8.1.

Table 8.1 – High Speed I/O Applications and Procedural Overview

Input Functions

Application

Counter

How?

Totalizer 16 Bits

(1 HSC input)

√

Totalizer 32 Bits

(1 HSC input)

√

Frequency

Measurement

(1 HSC input)

√

1. Choose up to 2 input functions. Perform Built-in High

Speed Configuration Procedures using Cscape Software

(page

39). Either configure Counter 1 and 2 as totalizers

configure Counter 1 for Frequency Measurement and

Counter 2 as a totalizer

configure only one counter depending upon the function

required.

2. Re-assign registers in accordance with the features

chosen in the configuration.

3. Wire the I/O port connector in accordance with the

features chosen in the configuration.

Output Function

Application Counters How?

PWM

(2 PWM Outputs)

Not Applicable

1. No Built-in High Speed Configuration Procedures are

required.

2. Assign values into the register map for Duty Cycle and

frequency out. See examples on page

238

3. Wire the I/O port connector in accordance with the

features chosen in the configuration.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 94 95

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Horner-apg QX651 OCS Manuel d'utilisateur Page 35

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