Texas Instruments TMS320x28xx - Manual

Texas Instruments TMS320x28xx

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Table of Contents:

  • Page 3 – Preface
  • Page 9 – Related Documentation From Texas Instruments; Manual; Peripheral Guides—; TMS320x28xx, 28xxx Enhanced Capture (eCAP) Module Reference Guide
  • Page 10 – TMS320C28x Assembly Language Tools User's Guide; Application Reports—; Getting Started With TMS320C28xTM Digital Signal Controllers; SPRAAD5—
  • Page 11 – SPRAAD8—; Using PWM Output as a Digital-to-Analog Converter on a TMS320F280x; SPRAAH1—; Using the Enhanced Quadrature Encoder Pulse (eQEP) Module; Trademarks
  • Page 13 – Chapter 1; Topic; Introduction
  • Page 14 – TMS320x28xx, 28xxx High-Resolution Pulse Width Modulator
  • Page 15 – Submodule Overview
  • Page 16 – Figure 1-2. Submodules and Signal Connections for an ePWM Module
  • Page 17 – Register Mapping; detail in its respective section.
  • Page 19 – Chapter 2; Overview
  • Page 20 – for relevant details.; Table 2-1. Submodule Configuration Parameters; Submodule
  • Page 21 – definitions are also used in the
  • Page 24 – The block diagram in
  • Page 25 – Calculating PWM Period and Frequency; Signal
  • Page 27 – Time-Base Counter Synchronization; Scheme 1 shown in
  • Page 29 – Software Forced Synchronization Pulse:; through
  • Page 30 – Phase Locking the Time-Base Clocks of Multiple ePWM Modules; EPWMxSYNCI; System Control and Interrupts Reference Guide
  • Page 31 – Event
  • Page 32 – illustrates the counter-compare submodule within the ePWM.
  • Page 33 – Controlling and Monitoring the Counter-Compare Submodule; Register Name
  • Page 34 – Operational Highlights for the Counter-Compare Submodule; Up-count mode: used to generate an asymmetrical PWM waveform.
  • Page 37 – Register
  • Page 38 – The possible actions imposed on outputs EPWMxA and EPWMxB are:
  • Page 41 – Waveforms for Common Configurations; Counter Mode; When using up-count mode to generate an asymmetric PWM:; See the
  • Page 43 – EPWMxB—Active High
  • Page 44 – EPWMxB—Active Low
  • Page 45 – EPWMxA; Use the code in
  • Page 47 – EPWMxA and EPWMxB — Active Low
  • Page 48 – EPWMxA and EPWMxB — Complementary
  • Page 49 – EPWMxA—Active Low
  • Page 52 – Finally the last two entries in; Mode
  • Page 54 – Where T; is the period of TBCLK, the prescaled version of SYSCLKOUT.; S as a Function of DBFED and DBRED
  • Page 55 – mnemonic
  • Page 57 – OSHTWTH; Pulses; OSHTWTHz
  • Page 61 – Table 2-18. Possible Actions On a Trip Event; Configure the ePWM1 registers as follows:
  • Page 62 – and
  • Page 64 – Signals; ) and can be configured to prescale these events before issuing an
  • Page 65 – ETPS—This programs the event prescaling options mentioned above.
  • Page 69 – Chapter 3; Overview of Multiple Modules
  • Page 70 – SyncOut; Key Configuration Capabilities; Options for SyncIn
  • Page 74 – Example 3-1. Configuration for Example in
  • Page 75 – Controlling Multiple Buck Converters With Same Frequencies; shows such a configuration
  • Page 77 – Example 3-2. Code Snippet for Configuration in
  • Page 83 – Example 3-4. Code Snippet for Configuration in
  • Page 84 – Practical Applications Using Phase Control Between PWM Modules; shows a master and slave module with a phase relationship of 120; Figure 3-11. Configuring Two PWM Modules for Phase Control
  • Page 85 – Controlling a 3-Phase Interleaved DC/DC Converter; . This is achieved by setting the slave TBPHS
  • Page 88 – Example 3-5. Code Snippet for Configuration in
  • Page 89 – Controlling Zero Voltage Switched Full Bridge (ZVSFB) Converter; The example given in
  • Page 91 – Example 3-6. Code Snippet for Configuration in
  • Page 93 – Chapter 4
  • Page 94 – Time-Base Submodule Registers
  • Page 95 – Bit
  • Page 97 – Counter-Compare Submodule Registers
  • Page 99 – Action-Qualifier Submodule Registers; Bits
  • Page 103 – Dead-Band Submodule Registers
  • Page 105 – PWM-Chopper Submodule Control Register
  • Page 106 – Trip-Zone Submodule Control and Status Registers
  • Page 110 – Event-Trigger Submodule Registers
  • Page 115 – Proper Interrupt Initialization Procedure
  • Page 117 – Appendix A; Location
  • Page 119 – IMPORTANT NOTICE; Products
Loading the manual

TMS320x28xx, 28xxx Enhanced Pulse

Width

Modulator (ePWM) Module

Reference Guide

Literature Number: SPRU791D

November 2004 – Revised October 2007

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Summary

Page 3 - Preface

Contents Preface ............................................................................................................................... 9 1 Introduction ............................................................................................................. 13 1.1 Introduction ...........

Page 9 - Related Documentation From Texas Instruments; Manual; Peripheral Guides—; TMS320x28xx, 28xxx Enhanced Capture (eCAP) Module Reference Guide

Preface SPRU791D – November 2004 – Revised October 2007 Read This First This guide describes the Enhanced Pulse Width Modulator (ePWM) Module. It includes an overview of themodule and information about each of the sub-modules: • Time-Base Module • Counter Compare Module • Action Qualifier Module • D...

Page 10 - TMS320C28x Assembly Language Tools User's Guide; Application Reports—; Getting Started With TMS320C28xTM Digital Signal Controllers; SPRAAD5—

www.ti.com Related Documentation From Texas Instruments SPRU790— TMS320x28xx, 28xxx Enhanced Quadrature Encoder Pulse (eQEP) Reference Guide describes the eQEP module, which is used for interfacing with a linear or rotary incrementalencoder to get position, direction, and speed information from a ro...

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