Event Manager
Introduction
This module explains how to generate PWM waveforms using the timers and compare units.
Also, the capture units, quadrature encoder pulse circuit, and the hardware deadband units will be
discussed. All devices of the C28x family have two event managers, EVA and EVB. These two
event managers are identical to each other in terms of functionality. Register mapping and bit
definitions are also identical, with the exception of naming conventions and register addresses.
Therefore, for simplicity, only the functionality of EVA will be explained.
Learning Objectives
Learning Objectives
Learning Objectives
Pulse Width Modulation (PWM) Review
Pulse Width Modulation (PWM) Review
Generate PWM with the Event Manager:
Generate PWM with the Event Manager:
General
General
-
-
Purpose Timer
Purpose Timer
Compare Units
Compare Units
Explain other Event Manager functions:
Explain other Event Manager functions:
Capture Units
Capture Units
Quadrature
Quadrature
Encoder Pulse (QEP) Circuit
Encoder Pulse (QEP) Circuit
Note:
Note:
Two identical Event Manager (EVA and EVB) modules
Two identical Event Manager (EVA and EVB) modules
are available. For simplicity, only EVA will be expla
are available. For simplicity, only EVA will be expla
ined.
ined.
C28x - Event Manager 7 - 1
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