Introduction Purpose This training course provides an overview of the High-performance Embedded Workshop (HEW), a key tool for developing software for

(1)

Introduction

Purpose

This training course provides an overview of the High-performance

Embedded Workshop (HEW), a key tool for developing software for

embedded systems that use microcontrollers (MCUs) from Renesas

Technology Corp.

Objectives

Review aspects of the development process for embedded programming.

Learn about the basic characteristics of HEW and the management and

debugging tools it provides.

Gain a basic understanding of the components HEW contains and the

toolchains and debuggers used with it.

Discover the multiple-window design of the HEW user interface.

Content

15 pages

2 questions

(2)

2

CODE

BUILD

DEBUG RUN

Programs for Embedded Systems

Are becoming very complex and can have a major

impact on overall product development cycle

Are produced by an iterative process: (create,

run, and test; then modify if required and repeat)

Are developed on different system than the

platform on which the application will run

Must be compact and efficient, due to limited

MCU resources (RAM and ROM)*

Require in-depth knowledge of MCU used*

Mandate a concise definition of the

system architecture*

Generally run on specialized operating

systems (typically RTOS types)*

Must handle specific operating conditions

(power-up, low-power modes, interrupt events, etc.)*

May have dynamic requirements (initialization after a

system reset, persistence of data through a reset, etc.)*

CODE

BUILD

DEBUG RUN

(3)

Embedded Platforms vs. PC Types

Much lower: 0.5 MIPs to few 100 MIPS Very high

Processing Power

Bound to MCU features and performance

Many OS products can be used

(T-engine, Win-CE, etc.)

Generally bound to a common operating system standard, such as Microsoft® _Windows

Other

Can be very limited: As little as 256 bytes of RAM and 4KB of ROM Almost unlimited

Resources

Typically a proprietary, application-dependent system design

Readily available: PC architecture System Hardware

4 to 64-bit microcontroller PentiumTM _{or equivalent}

Processor

Embedded System Platforms Desktop PC Platforms

10 to 400MHz GHz range

CPU Speed

Code is written on a PC to run on a target system with a different processor and operating system (cross development) Code is written on a PC to run

on a PC Development

(4)

4

Tools for Embedded Programming

Editor Assembler, _Compiler

Debugger, Simulator Linker Source code = C, asm Machine Code = obj mot, abs, map The Editor is used for

firmware coding.

HEW enables coding, building, linking, and debugging embedded applications within an integrated

development environment

The Assembler and Compiler are used for syntax checking of code and for generating relocatable machine code for system MCU.

The Linker is used to generate final machine code image.

The Debugger or Simulator is used for troubleshooting.

(5)

Basic Characteristics of HEW

Implements a powerful, yet easy-to-use software development solution that

shortens system development time

Has a familiar Graphical User Interface (GUI) that simplifies operations

Allows users to select right tool for each process and fully exploit

the tool’s advanced capabilities

Eliminates need to switch environments between coding and

debugging operations or between target devices

Provides — as an Integrated Development Environment (IDE) —

many essential functions, including:

-

Graphical project file management and navigation

- Graphical toolchain option management

- A configurable build engine

System Development

Cycle

(6)

6

Other Features of HEW

Code and debugging support for Renesas MCUs — devices in the SuperH, M32R, M16C, R8C, H8SX, H8S, H8, and 740 families

Visual display of CPU hardware set-up

Automatic generation of start-up code for every supported CPU Single environment for toolchain and debug component support Integration with third-party software development tools

User-definable Custom Build Steps to integrate additional command-line based tools Choice of Network or Node-locked toolchain for Renesas and IAR compilers

Integrated Editor with color keyword functionality

Double-click capability for jumping into integrated Editor from Build Error and Warnings

Full instruction-simulation capability

Graphical display of Number of Execution Cycles per Function Display of Cache Hit Rate and Pipeline State

Comprehensive Breakpoint functionality

Visual Debug functions, including Picture and Waveform displays

Support for advanced debugging features such as Code Profiling, Performance Analysis, Code Coverage, and Trace

Single-session Save for Build and Debug AutoUpdate utility

(7)

Workspace Configuration Configuration Session Session Project Project Project

Management and Debugging

Advanced Project Management Tools

Workspace and Project management

Configurations and Sessions

Version control

Modular interface for third-party

tool integration

Intuitive GUI with toolbar, shortcuts,

and virtual desktop

Advanced Debugging Tools

Map-viewer

Call-walker

Coverage

Profiler

Image Viewer / Waveform Viewer

Workspace Configuration Configuration Session Session Project Project Project Profile Chart

(8)

PROPERTIES

On passing, 'Finish' button: Goes to Next Slide

On failing, 'Finish' button: Goes to Slide

Allow user to leave quiz: After user has completed quiz

User may view slides after quiz: After passing quiz

(9)

HEW Components

Editor

Project Generator

Version Tracking

Workspace

Command-Line

…

Toolchain

C/C++ Compiler

Linkage Editor/

Optional Linker

Assembler

Librarian

Simulator

Debugger

Memory

Trace

Register

Break

…

On-Line Help

AutoUpdater

Third-Party Tools

…

Manual Navigator

…

Visit www.renesas.com

(10)

10

Toolchain/Compiler Packages

Toolchain

Product Line Toolchain

SuperH family C/C++ compiler package

M32R family C compiler package (CC32R)

H8, H8S, and H8SX families C/C++ compiler package

M16/70/80 and M32C families C compiler package (NC308WA)

M16C family C compiler package (NC30WA)

Five Renesas toolchain versions are currently available for our MCU product lines.

C/C++ or C compiler package (Standard

package)

Must be purchased from an authorized Renesas dealer

Full capabilities

Optimized for specific MCU

C/C++ or C compiler package (Evaluation

version)

A no-cost download at renesas.com

Full capabilities for 60 days, then code-size limited

(11)

Debugger (Target) Platforms

Simulator

Software component — usually included in

compiler packages/ toolchains

Executes user program in a software engine that models instruction operation of target MCU

Normally used to check logic flow of the embedded program being developed

Emulator (Hardware Debug Target)

Hardware component — included

in Renesas starter kits or purchased separately

Could be a monitor-code based, JTAG-type or full In-Circuit

Emulator (ICE) product

Device-specific; can only be used to perform debugging for actual target MCU

(12)

12

Elements of Typical HEW Screen

Project Manager Output Window Built-in Editor Local Variable Watch

Full-trace Bus Virtual Desktop Memory View

Stack Trace Complex Break Conditions C/C++ Variable Watch

(13)

(14)

PROPERTIES

On passing, 'Finish' button: Goes to Next Slide

On failing, 'Finish' button: Goes to Slide

Allow user to leave quiz: After user has completed quiz

User may view slides after quiz: After passing quiz

(15)