資源簡介
指導(dǎo)大家入門STM32F4的DSP，搭建DSP庫測試環(huán)境，同時(shí)通過對(duì)DSP庫中的幾個(gè)基本數(shù)學(xué)功能函數(shù)和FFT快速傅里葉變換函數(shù)的測試，讓大家對(duì)STM32F4的DSP庫有個(gè)基本的了解。源碼包含對(duì)512/1024/2048/4096個(gè)點(diǎn)計(jì)算的源代碼
代碼片段和文件信息
#include?“arm_math.h“?
#include?“arm_const_structs.h“
#define?FFT_LENGTH 1024? //FFT?input?lenth
//#define?FFT_LENGTH 2048
//#define?FFT_LENGTH 4096
/*?-------------------------------------------------------------------?
*?External?Input?and?Output?buffer?Declarations?for?FFT?Bin?Example?
*?-------------------------------------------------------------------?*/?
?float?Input1_f32_10khz[FFT_LENGTH*2];//FFT?input?date
?static?float32_t?testOutput[FFT_LENGTH/2];?
/*?------------------------------------------------------------------?
*?Global?variables?for?FFT?Bin?Example?
*?-------------------------------------------------------------------?*/?
uint32_t?ifftFlag?=?0;?
uint32_t?doBitReverse?=?1;?
?
/*?Reference?index?at?which?max?energy?of?bin?ocuurs?*/?
uint32_t?re?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件???????4633??2020-02-28?11:34??STM32_DSP\1024個(gè)點(diǎn)FFT計(jì)算結(jié)果
?????文件???????9155??2020-02-28?11:36??STM32_DSP\2048個(gè)點(diǎn)FFT計(jì)算結(jié)果
?????文件??????18258??2020-02-28?11:38??STM32_DSP\4096個(gè)點(diǎn)FFT計(jì)算結(jié)果
?????文件??????12210??2020-02-28?11:19??STM32_DSP\STM32_DSP.c
?????目錄??????????0??2020-02-28?11:39??STM32_DSP
-----------?---------??----------?-----??----
????????????????44256????????????????????5
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