Texas Instruments C28 Series Student Guide

Quadrature Encoder Pulse (QEP)
Quadrature Encoder Pulse (QEP)
Quadrature
Quadrature
Encoder Pulse
Encoder Pulse
(EVA)
(EVA)
PWM Circuits
PWM Circuits
PWM Circuits
Output Logic
Output Logic
Output Logic
GP Timer 1 Compare
GP Timer 1
GP Timer 2 Compare
GP Timer 2
Compare Unit 1
Compare Unit 2
Compare Unit 3
Capture Units
MUX
QEP
Circuit
Output Logic
Output Logic
EV Control Registers / Logic
Reset
PIE
TCLKINA / TDIRA
/
2
ADC Start
Data Bus
•
CLK
DIR
•
•
T1PWM_T1CMP
T2PWM_T2CMP
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
CAP1/QEP1
CAP2/QEP2
CAP3/QEPI1
•
The QEP circuit, when enabled, decodes and counts the quadrature encoded input pulses on pins
CAP1/QEP1 and CAP2/QEP2 in EVA, and CAP4/QEP3 and CAP5/QEP4 in EVB. The QEP
circuit can be used to interface with an optical encoder to get position and speed information from
a rotating machine. When the QEP circuit is enabled, the capture function on CAP1 and CAP2 in
EVA, and CAP4 and CAP5 in EVB pins is disabled. The QEP time base is provided by
GP timer 2 in EVA and GP timer 4 in EVB.
7 - 32 C28x - Event Manager

Texas Instruments C28 Series Specifications

General

Brand	Texas Instruments
Model	C28 Series
Category	Computer Hardware
Language	English