家庭教育重要性
STM32系列的浮点运算能⼒
总结,
CortexM4架构的都是单精度的
诗歌表现手法CotexM7结构的单双都有,⽬前是F7才有M7架构
从⽂档en.brstm32-STM32 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers来看
团建户外游戏STM32F7/4/3,
STM32L4
自旋电子学都带有DSP和浮点运算单元
系列频率特点
STM32F7216Mhz Cortex-M7 L1-Cache⾼性能
鸣人日雏田STM32F4180Mhz Cortex-M4⾼性能
STM32F372Mhz Cortex-M4
STM32L480Mhz Cortex-M4极低功耗
根据我们的经验,F767双精度跑⼀次⽤20+ms,23左右吧
单精度和整数运算好像没差别，可能是因为我们的测试⽤例⽤的都是双精度测试⽤例，等有空的时候研究下这个地⽅：为什么单精度和整数运算好像没差别
我们的⽬标是⽤200+ms以下，考虑到特殊情况复杂度是指数级增长，控制在160ms以下才是合理的
根据⽂档en.brstm32f7-STM32F7 ries - High performance - 32-bit MCUs
F7系列⾥⾯，频率都是216
萝卜焖羊肉产品FPU L1-Cache键盘清洗方法
STM32F7x8/9双精度16+16K
STM32F7x7双精度16+16K
STM32F7x6单精度4+4K
STM32F765双精度16+16K
STM32F745单精度4+4K
Cortex7的⽂档
> > About the FPU
8.1. About the FPU一官半职
The Cortex-M7 processor with FPU is an implementation of thesingle-precision and double-precision variant of the ARMv7-M Architecture with Floating-Point Extension (FPv5).
根据Cortex4的⽂档:
> > About the FPU
7.1. About the FPU
The Cortex-M4 FPU is an implementation of thesingle precision variant of the ARMv7-M Floating-Point Extension (FPv4-SP). It provides floating-point computation functionality that is compliant with t
he ANSI/IEEE Std 754-2008, IEEE Standard for Binary Floating-Point Arithmetic, referred to as the IEEE 754 standard. The FPU supports all single-precision data-processing instructions and data types described in the ARM Architecture Reference Manual.
所以F4/3还有L4应该都是单精度的了
