beautypg.com

Operation – FUJITSU MB91460 SERIES FR60 User Manual

Page 897

background image

881

Chapter 43 Stepper Motor Controller

3.Operation

3. Operation

The operation of the stepping motor controller is explained.

Setting Operation of Stepping Motor Controller

Figure 3-1 Setting of Stepping Motor Controller

Operation of PWM-pulse generator

When the counter is started (PWC: CE = 1), the counter starts incrementing from 00H on the selected count

clock rising. The PWM output pulse wave remains "H" until the value of the counter matches the value set to

PWM compare register, and then changes to and remains "L" until the value of the counter overflows (FF

H

-->

00

H

).

Figure 3-2

"Examples of PWM1&2 Waveform Output" shows the PWM waveform generated by the PWM

generator


PWM1 H width (compare value) is set.

PWM2 H width (compare value) is set.

Used bit
Not used bit
1 is set.
0 is set.
Channel No.