用户手册 — Motorola SC140

目录

• Title

  1
• Abstract and Contents

  3
• 1 Introduction

  5
• 2 SC140 Enhanced OnCE Stopwatch Timer Capabilities

  6
  • 2.1 Features

    6
  • 2.2 Resources

    6
  • 2.3 Implementation

    6
• 3 Setting Up the Stopwatch Timer Within an Application

  7
  • 3.1 Initializing the Stopwatch Timer

    7
  • 3.2 Starting the Stopwatch Timer

    9
  • 3.3 Stopping the Stopwatch Timer

    10
  • 3.4 Converting Cycles to Actual Time

    10
  • 3.5 Putting it All Together

    11
  • 3.6 Adapting Stopwatch Timer Code to Other SC140 Devices

    12
• 4 Setting Up the Stopwatch Timer Within the Debugger

  12
  • 4.1 Initializing the Stopwatch Timer

    12
  • 4.2 Stopping the Stopwatch Timer

    15
• 5 Setting Up the System Clock Speed

  16
  • 5.1 Setting Up the PLL in Software

    17
  • 5.2 Setting Up the PLL in Hardware

    18
• 6 Verifying Correct Setup

  18
  • 6.1 Using the LED on the SDP

    18
  • 6.2 Testing the Stopwatch Timer

    19
• 7 Conclusion

  21
• 8 References

  21
• AppendixA Complete Example of Profiling

  23