新的ARM Cortex-M7处理器内核是ARM的Cortex-M系列的不同微控制器内核中最新的和性能最高的。正因为如此，在性能上它优于如Cortex-M3和Cortex-M4，同时保持向后兼容性。

众多的半导体厂商都宣布了新的Cortex-M7器件，最先推出的是意法半导体，在STM32系列增加新的Cortex-M7器件。STM32的Cortex-M7版称为STM32F7，运行在200MHz，最初设计时具有512KB或闪存1MB和320KB RAM。所以，当使用更强大的STM32F7装备STM32开发人员的未来的设计时，他门会期望些什么呢？

STM32F7在性能方面快了很多。Cortex-M7是ARM性能最高的Cortex-M处理器，拥有6段式超标量流水线，分支预测和可扩展的系统和内存接口，包括AXI，AHB，高速缓存和紧耦合存储器，提供高整数，浮点和DSP性能。

原英文链接：http://blog.atollic.com/meet-stm32f7-%E2%80%93-the-new-cortex-m7-based-stm32-family

Meet STM32F7 – The new Cortex-M7 based STM32 family

The new ARM Cortex-M7 processor core is the most recent and highest performance of the different microcontroller cores in the ARM Cortex-M family. And as such, it outperforms for example the Cortex-M3 and Cortex-M4 on performance, while maintaining backwards compatibility.

Many semiconductor manufacturers have announced new Cortex-M7 devices, and one of the first out is STMicroelectronics, adding new Cortex-M7 devices to their STM32 family. The Cortex-M7 version of STM32 is called STM32F7, runs at 200MHz and initially coming with 512KB or 1MB of Flash memory and 320KB of RAM. And so, what can STM32 developers expect, when equipping their coming designs with the more powerful STM32F7

Performance wise, the STM32F7 is a lot faster. The Cortex-M7 is ARM’s highest-performing Cortex-M processor, combining a six-stage superscalar pipeline with branch prediction and flexible system and memory interfaces including AXI, AHB, caches and tightly-coupled memories, delivering high integer, floating point and DSP performance.

The Cortex-M7 processor and hence STM32F7 takes advantage of the same easy-to-use, C friendly programmer’s model and is binary compatible with existing Cortex-M processors and tools. Software compatibility enables simple migration from Cortex-M3 and Cortex-M4 processors.

More technically, the Cortex-M7 and STM32F7 use the ARMv7-M instruction set architecture (ISA), with an IEEE 754 compliant single and double precision floating point unit, as well as including these DSP extensions:

Single cycle 16/32-bit MAC

Single cycle dual 16-bit MAC

8/16-bit SIMD arithmetic

Hardware Divide

STM32F7 will provide STM32 developers with a lot of performance headroom, and I am sure many of you will use it fully to build brilliant products based on STM32F7; in the IoT space or elsewhere.