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fft_v0.5.6.1
- 快速傅里叶变换fft算法,基于时间的基2fft,其中针对ARM7 TDMI优化,采用查表的方式- Fast Fourier Transform algorithm, based on time-based 2fft, one optimized for ARM7 TDMI, using look-up table approach
Sin
- 查表计算三角函数,不需要进行浮点运算,大大节省MCU运算时间,加强安全性-Look-up table calculation of trigonometric functions, does not require floating-point operations, saving time MCU operations to enhance security
time
- stm32的103c8这个型号的毫秒表的源代码,可以自行修改成为微妙或者更小的表码。-This type of 103c8 stm32 milliseconds table source code, you can modify a subtle or smaller table code.
