这是为什么Cortex-M3 和 Cortex-M4典型benchmark的分数差不多。然而,Cortex-M4的内部数据通路和Cortex-M3的不同,某些情况下Cortex-M4可以处理的更快(例如,单周期MAC,可以在一个周期中写回到两个寄存器)。 2.5Cortex-M7指令集 Cortex-M7支持的指令集和Cortex-M4相似,添加了: 浮点数据架构是基于FPv5的,而不是Cort...
ARM Cortex-M3 Processor Software Development for ARM7TDMI Processor Programmers http://www.arm.com/files/pdf/Cortex-M3_programming_for_ARM7_developers.pdf 1.3Cortex-M系列处理器的共同特性 Cortex-M0, M0+, M3, M4 and M7之间有很多的相似之处,例如: -基本编程模型 (章节 3.1) -嵌套向量中断控制器(...
Cortex-M系列处理器的具体区别可以看这里Arm Cortex-M Processor Comparison Table。另外，Cortex系列只是A...
The Cortex-M processor series is designed to enable developers to create cost-sensitive and power-constrained solutions for a broad range of devices. The optimal balance between area, performance, and power makes Cortex-M3 ideal for products such as microcontrollers, automotive body systems, and wir...
登录后复制NOP ; No Operation BKPT; Break point YIELD ; Execute as NOP on the Cortex-M0 processor 2. 指令说明 2.1 可访问high registers的指令 绝大部分指令只能访问low registers,也就是只能访问R0~R7寄存器。可以访问high registers的指令只有两条,这两条指令都不更新APSR,指令没有S后缀。
Arm® Cortex®-M3 Exceptional 32-bit performance with low power consumption Arm® Cortex®-M0+ Smallest footprint and lowest power requirements of Cortex-M processors Arm® Cortex®-M0 Smallest Arm® processor available Arm® Cortex®-M7 Highest performance Cortex-M processor Arm® ...
ARM Cortex-M3 Processor Software Development for ARM7TDMI Processor Programmers http://www.arm.com/files/pdf/Cortex-M3_programming_for_ARM7_developers.pdf 1.3Cortex-M系列处理器的共同特性 Cortex-M0, M0+, M3, M4 and M7之间有很多的相似...
The 32-bit Arm Cortex-M4 processor core is the first core of the Cortex-M line up to feature dedicated Digital Signal Processing (DSP) IP blocks, including an optional Floating-Point Unit (FPU).
Tiny, 32-bit Processor The Cortex-M processor series is designed to enable developers to create cost-sensitive and power-constrained solutions for a broad range of devices. Designed for smart and connected embedded applications, especially where size matters, the Cortex-M0 is the smallest Arm ...
NOP;NoOperation BKPT;Breakpoint YIELD;ExecuteasNOPontheCortex-M0processor 2. 指令说明 2.1 可访问high registers的指令 绝大部分指令只能访问low registers,也就是只能访问R0~R7寄存器。可以访问high registers的指令只有两条,这两条指令都不更新APSR,指令没有S后缀。