ARM Assembly Language, 2nd Edition

Chapter 15

Exception Handling

v7-M

15.1 Introduction

With the introduction of the Cortex-M3 in 2006, ARM decided to move its considerable weight into the huge market for microcontrollers, devices that normally get very little attention as they’re embedded into everything from printers to industrial meters to dishwashers. Building on the success of the ARM7TDMI, which incidentally was and continues to be used in microcontrollers (particularly Bluetooth devices), the version 7-M cores like the Cortex-M4 support deeply embedded applications requiring fast interrupt response times, low gate counts, and peripherals like timers and pulse width modulation (PWM) signal generators. In some ways, these processors are easier to work with and in some ways, ...