STM32 DMA输出sin波形源程序

ID:603417 · 发表于 2019-8-24 19:19

#include "stm32f10x.h"
#include "DMA.h"
#include <stdlib.h>
#include "math.h"
u16 Sine12bit[256] = { //?????
2048, 2098, 2148, 2198, 2248, 2298, 2348, 2398, 2447, 2496,
2545, 2594, 2642, 2690, 2737, 2785, 2831, 2877, 2923, 2968,
3013, 3057, 3100, 3143, 3185, 3227, 3267, 3307, 3347, 3385,
3423, 3460, 3496, 3531, 3565, 3598, 3631, 3662, 3692, 3722,
3750, 3778, 3804, 3829, 3854, 3877, 3899, 3920, 3940, 3958,
3976, 3992, 4007, 4021, 4034, 4046, 4056, 4065, 4073, 4080,
4086, 4090, 4093, 4095, 4095, 4095, 4093, 4090, 4086, 4080,
4073, 4065, 4056, 4046, 4034, 4021, 4007, 3992, 3976, 3958,
3940, 3920, 3899, 3877, 3854, 3829, 3804, 3778, 3750, 3722,
3692, 3662, 3631, 3598, 3565, 3531, 3496, 3460, 3423, 3385,
3347, 3307, 3267, 3227, 3185, 3143, 3100, 3057, 3013, 2968,
2923, 2877, 2831, 2785, 2737, 2690, 2642, 2594, 2545, 2496,
2447, 2398, 2348, 2298, 2248, 2198, 2148, 2098, 2047, 1997,
1947, 1897, 1847, 1797, 1747, 1697, 1648, 1599, 1550, 1501,
1453, 1405, 1358, 1310, 1264, 1218, 1172, 1127, 1082, 1038,
995, 952, 910, 868, 828, 788, 748, 710, 672, 635,
599, 564, 530, 497, 464, 433, 403, 373, 345, 317,
291, 266, 241, 218, 196, 175, 155, 137, 119, 103,
88, 74, 61, 49, 39, 30, 22, 15, 9, 5,
2, 0, 0, 0, 2, 5, 9, 15, 22, 30,
39, 49, 61, 74, 88, 103, 119, 137, 155, 175,
196, 218, 241, 266, 291, 317, 345, 373, 403, 433,
464, 497, 530, 564, 599, 635, 672, 710, 748, 788,
828, 868, 910, 952, 995, 1038, 1082, 1127, 1172, 1218,
1264, 1310, 1358, 1405, 1453, 1501, 1550, 1599, 1648, 1697,
1747, 1797, 1847, 1897, 1947, 1997 };
u16 fangbo_12bit[256]= { //?????128
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0,0,0,0,0,0,0,0,
4095, 4095,4095, 4095, 4095, 4095, 4095, 4095 ,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095,
4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095
};
/*************************************************************
Function : set_Sine12bit
Description : ???????
Input : MAX(????) MIN(????)
return : none
*************************************************************/
void Set_Sine12bit(float MAX,float MIN)
{
int i;
float jiaodu=0;
float MID=(MAX+MIN)/2.0; //????
if(MAX>3.3) MAX=3.3;
else if(MAX<=MIN) MIN=0;
for(i=0;i<256;i++)
{
jiaodu=i*0.0247369; //?i =127?,???180?,??sin()????,??????
Sine12bit[i]= ((float)sin(jiaodu)*(MAX-MID)+MID)*1241.212; //1241.212???,??4096/3.3
}
}

复制代码

帐号		自动登录	找回密码
密码			立即注册