My program uses the cos function for calculation. If you simply use math.c to calculate once, it will be about 2ms, and it can be increased to 0.5ms with arm_math.c. At the same time, I use STM32f1 to test, and use math.c for about 0.115ms. May I ask Is there such a big difference, or is it my own mistake...
Bonnie postato su September 24, 2020
The key NUC supports DSP instructions and floating-point units.
Connie postato su September 24, 2020
Have you turned on floating point arithmetic? Does it need to be set?
Jaycee postato su September 24, 2020
You have to call the library operation of DSP.
