《《AVR JTAG ICE User Guide》.pdf

JTAG ICE User Guide Table of Contents Table of Contents Section 1 Introduction 1-1 1.1 Features1-1 1.2 JTAG ICE and the OCD Concept 1-2 Software Breakpoints1-3 Hardware Breakpoints1-3 1.3 Device Support 1-4 Section 2 Getting Started 2-1 2.1 Unpacking the System 2-1 2.2 System Requirements2-1 2.3 Connecting JTAG ICE2-2 2.4 Connecting Power2-3 Section 3 Frontend Software 3-1 3.1 Installing AVR Studio 3-1 3.2 On-chip Debugging with JTAG ICE 3-1 Run Timers in Stopped Mode 3-3 OCD communication frequency 3-3 Breakpoint Option 1 3-4 Breakpoint Option 2 3-4 Breakpoint Option 3 3-4 Data Memory Breakpoints3-4 Masked Breakpoint 3-4 .1 Example 13-6 .2 Example 23-6 .3 Example 33-6 Enable Break on Branch/Skip 3-6 3.3 Programming with JTAG ICE3-7 Section 4 Special Considerations 4-1 4.1 I/O Peripherals 4-1 4.2 Single Stepping4-1 4.3 Software Breakpoints4-1 iii Table of Contents 4.4 Target AVR Reset and Power Down during Debugging 4-2 4.5 JTAG Relevant Fuse Settings4-2 4.6 Use AVR Studio 3.52 or Higher 4-2