如何将stm32f4的DSP库改成stm32f1能使用的，里边的ARMCM4.h是哪个文件的，那个内核库说明是支持contex  m3的
#ifndef _ARM_MATH_H
#define _ARM_MATH_H

#define __CMSIS_GENERIC         /* disable NVIC and Systick functions */

#if defined (ARM_MATH_CM4)
#include "core_cm4.h"
#elif defined (ARM_MATH_CM3)
#include "core_cm3.h"
#elif defined (ARM_MATH_CM0)
#include "core_cm0.h"
#define ARM_MATH_CM0_FAMILY
#elif defined (ARM_MATH_CM0PLUS)
#include "core_cm0plus.h"
#define ARM_MATH_CM0_FAMILY
#else
#include "ARMCM4.h"
#warning "Define either ARM_MATH_CM4 OR ARM_MATH_CM3...By Default building on ARM_MATH_CM4....."
#endif

#undef  __CMSIS_GENERIC         /* enable NVIC and Systick functions */
#include "string.h"
#include "math.h"
#ifdef __cplusplus
extern "C"
{
#endif