English
Building advanced Cortex-M3 applications
By Jean J Labrosse from Micrium, Lotta Frimanson and Anders Lundgren from IAR Systems
Embedded.com (04/08/09, 12:36:00 AM EDT)
The ARM Cortex-M3 architecture provides many improvements compared with its predecessor, the popular ARM7/9, and is designed to be particularly suitable for cost-sensitive embedded applications that require deterministic system behavior.
This article describes how developers can best utilize the advanced capabilities of the Cortex-M3 when designing embedded applications.
Comparing ARM7/9 to Cortex-M3
Cortex-M3 is a member of the Cortex-M family, one of the three ARM Cortex architectures that were introduced to the embedded marketplace in 2004, and is being integrated into low-cost embedded microcontrollers (MCUs) from an increasing number of silicon vendors.
A comparison of the main characteristics of Cortex-M3 with those of ARM7/9 is shown in Table 1 below.
Table 1: Comparison of ARM7/9 and Cortex-M3 characteristics
The Cortex-M3 improves on the ARM7/9 in most qualitative estimates " simpler stack architecture, better interrupt controller, and higher-performance instruction set, as well as enhanced debug capabilities, all of which can significantly affect end-product performance.
Embedded.com (04/08/09, 12:36:00 AM EDT)
The ARM Cortex-M3 architecture provides many improvements compared with its predecessor, the popular ARM7/9, and is designed to be particularly suitable for cost-sensitive embedded applications that require deterministic system behavior.
This article describes how developers can best utilize the advanced capabilities of the Cortex-M3 when designing embedded applications.
Comparing ARM7/9 to Cortex-M3
Cortex-M3 is a member of the Cortex-M family, one of the three ARM Cortex architectures that were introduced to the embedded marketplace in 2004, and is being integrated into low-cost embedded microcontrollers (MCUs) from an increasing number of silicon vendors.
A comparison of the main characteristics of Cortex-M3 with those of ARM7/9 is shown in Table 1 below.
Table 1: Comparison of ARM7/9 and Cortex-M3 characteristics
The Cortex-M3 improves on the ARM7/9 in most qualitative estimates " simpler stack architecture, better interrupt controller, and higher-performance instruction set, as well as enhanced debug capabilities, all of which can significantly affect end-product performance.
|
E-mail This Article | 
|
|
Printer-Friendly Page |
|
||||||
Related Articles
New Articles
- Accelerating RISC-V development with Tessent UltraSight-V
- Automotive Ethernet Security Using MACsec
- What is JESD204C? A quick glance at the standard
- Optimizing Power Efficiency in SOC with PVT Sensor-Assisted DVFS Technology
- Bandgap Reference (BGR) Circuit Design and Transient Analysis in 90nm VLSI Technology
Most Popular
- System Verilog Assertions Simplified
- Accelerating RISC-V development with Tessent UltraSight-V
- System Verilog Macro: A Powerful Feature for Design Verification Projects
- Understanding Logic Equivalence Check (LEC) Flow and Its Challenges and Proposed Solution
- Design Rule Checks (DRC) - A Practical View for 28nm Technology