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need help in dsp library for keil !!

Question asked by saleh barkhori on Aug 16, 2017
Latest reply on Aug 17, 2017 by Zhitai Liu

Hi every one!

I I have a problem when trying to use arm_math.h  and want to use fft function with keil software and stm32f497vgt but   I see this error

    #error "Define according the used Cortex core ARM_MATH_CM7, ARM_MATH_CM4, ARM_MATH_CM3, ARM_MATH_CM0PLUS or ARM_MATH_CM0"

I included this headers in my main.c!!

#include "main.h"

#include "stm32f4xx_hal.h"

#include "arm_math.h"

#include "arm_const_structs.h"

#include "arm_common_tables.h"

#include "core_cm3.h"

#define ARM_MATH_CM3

#define __FPU_USED 1


what did I miss??thanks  very much