MPC5634M
NXP
This example is designed for the low cost TRK-MPC5634M board (TRK), but can also be run on the MPC5634MKIT (EVB) with expanded capability.
Application NoteNxp
Using eTPU2 and eQADC for PWM Control on the MPC563xM
This application note demonstrates an open-loop LED dimmer using the eTPU2 and eQADC on the MPC563xM microcontroller to translate analog input into PWM duty cycles.
Overview
This document details the implementation of a PWM-controlled LED dimmer using the NXP MPC563xM (specifically MPC5634M) 32-bit Power Architecture microcontroller. It provides a technical guide on initializing the Phase-Locked Loop (PLL) for a 64 MHz system clock, configuring the enhanced Analog-to-Digital Converter (eQADC) for single software scan sampling of a potentiometer, and utilizing the enhanced Timing Processor (eTPU2) for PWM signal generation. The design illustrates an open-loop system where analog voltage measurements are mapped to duty cycles, a fundamental architecture for automotive engine management and industrial control applications.
Use Cases
- LED brightness control
- Open-loop engine management
- Motor speed regulation
- Analog sensor to PWM translation
- Automotive timing and actuator control
Topics
NXP
MPC5634M
MPC563xM
eTPU2
eQADC
PWM control
LED dimmer
Power Architecture
microcontroller
PLL
analog-to-digital converter
Referenced Parts
| MPC5634M | NXP | This example is designed for the low cost TRK-MPC5634M board (TRK), but can also be run on the MPC5634MKIT (EVB) with expanded capability. |