The Definitive Guide to the ARM Cortex-M3

CHAPTER 18 Porting Applications from the ARM7 to the Cortex-M3

In This Chapter:

• Overview

• System Characteristics

• Assembly Language Files

• C Program Files

• Precompiled Object Files

• Optimization

Overview

For many engineers, porting existing program code to new architecture is a typical task. With the Cortex-M3 products starting to emerge on the market, many of us have to face the challenge of porting ARM7TDMI (referred to as ARM7 in the following text) code to the Cortex-M3. This chapter evaluates a number of aspects involved in porting applications from the ARM7 to the Cortex-M3.

There are several areas to consider when you’re porting from the ARM7 to the Cortex-M3:

• System characteristics
• Assembly language files
• C language files ...