基于ARM Cortex-M3核的SoC架构设计及性能分析

主要研究了基于ARM Cortex-M3核的SoC设计方法及不同架构对芯片整体性能的影响。首先从Cortex-M3的结构特点尤其是总线结构特点出发,分析了基于该核的SoC架构设计的要点。然后通过EEMBC的CoreMark程序,对实际流片的一款Cortex-M3核芯片进行了性能测试,并与STM32F103 MCU的测试结果进行了对比,通过实例说明了不同芯片架构对性能的影响。最后,对影响SoC芯片性能的因素,包括芯片架构、存储器速度、工艺、主频等进行了分析和总结。

Design and performance analysis of SoC architecture based on ARM Cortex-M3

The method of how to design SoC with ARM Cortex-M3 core is carefully studied,and the relationship between chip architecture and performance is also analyzed.Firstly,the essentials of SoC design with Cortex-M3 are presented based on the core′s structural features,especially the bus structure feature.Then,with the help of CoreMark program from EEMBC,the performance of a chip with Cortex-M3 core is tested after tape-out,and also compared with the test results of STM32F103 MCU in order to illustrate different architectures ′ effects on chips′ performance.At last,the factors which affect the performance of SoC,including chip architecture,memory speed,process and frequency,are analyzed and summarized.