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C51 COMPILER V8.08 FFT 09/26/2012 16:52:51 PAGE 1
C51 COMPILER V8.08, COMPILATION OF MODULE FFT
OBJECT MODULE PLACED IN FFT.OBJ
COMPILER INVOKED BY: D:\Program Files\keil_51\C51\BIN\C51.EXE FFT.C BROWSE DEBUG OBJECTEXTEND
line level source
1 #include<STC12C5A60S2.H>
2 #define uchar unsigned char
3 #define uint unsigned int
4 #define channel 0x00 //设置AD通道为 P1.0
5 //----http://59tiaoba.taobao.com------------------qq:77554971---------------------------------------------
---
6 #define ADC_POWER (1<<7)
7 #define ADC_SPEEDHH (0x03<<5)
8 #define ADC_START (1<<3)
9 #define PADCH (1<<5)
10 #define ADC_FLAG (1<<4)
11
12 sbit SDA_R=P0^7;
13 sbit SDA_R_TOP=P0^4;
14 sbit SDA_G=P0^6;
15 sbit SDA_G_TOP=P0^5;
16 sbit STCP=P1^7;
17 sbit SHCP=P1^6;
18
19 sbit resget=P2^0; //时钟复位
20 sbit key_moda=P2^1; //模式转换
21 sbit key_color=P2^2; //时钟加
22 sbit key_Down=P2^3; //时钟减
23 void Scan_Mode();
24 extern uchar byte_read(uint);
25 extern void sector_erase(uint);
26 extern void byte_program(uint, uchar);
27 uchar Mode=0;//模式
28 uchar color=0;
29 uchar Stop_time=0;
30 uchar stop=0;
31 uchar Move,Speed,linee; //变量
32 uint zimuo; //字模计数器
33 uchar BUFF[20]; //缓存
34 uchar BUFF1[20]; //缓存
35 uchar fractional_frequency=0;//分频
36 uchar code hanzi[]; //汉字字模
37 uchar code hanzi1[]; //汉字字模
38 uchar code sw[16]={0X00,0X08,0x04,0x0C,0X02,0X0A,0X06,0X0E,0X01,0X09,0X05,0X0D,0X03,0X0B,0X07,0X0F};/*16行
-段码*/
39 //---------------------------------------------------------------------
40 //--------------------------------------------------------------------------------------------------------
---------------
41 //放大128倍后的sin整数表（128）
42 code char SIN_TAB[128] = { 0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 59, 65, 70, 75, 80, 85, 89, 94, 98, 102,
43
44 105, 108, 112, 114, 117, 119, 121, 123, 124, 125, 126, 126, 126, 126, 126, 125, 124, 123, 121, 119, 117, 1
-14, 112,
45
46 108, 105, 102, 98, 94, 89, 85, 80, 75, 70, 65, 59, 54, 48, 42, 36, 30, 24, 18, 12, 6, 0, -6, -12, -18, -24
-, -30,
47
48 -36, -42, -48, -54, -59, -65, -70, -75, -80, -85, -89, -94, -98, -102, -105, -108, -112, -114, -117, -119,
- -121,
49
C51 COMPILER V8.08 FFT 09/26/2012 16:52:51 PAGE 2
50 -123, -124, -125, -126, -126, -126, -126, -126, -125, -124, -123, -121, -119, -117, -114, -112, -108, -105
-, -102,
51
52 -98, -94, -89, -85, -80, -75, -70, -65, -59, -54, -48, -42, -36, -30, -24, -18, -12, -6 };
53
54 //放大128倍后的cos整数表（128）
55 code char COS_TAB[128] = { 127, 126, 126, 125, 124, 123, 121, 119, 117, 114, 112, 108, 105, 102, 98, 94,
56
57 89, 85, 80, 75, 70, 65, 59, 54, 48, 42, 36, 30, 24, 18, 12, 6, 0, -6, -12, -18, -24, -30, -36, -42, -48, -
-54, -59,
58
59 -65, -70, -75, -80, -85, -89, -94, -98, -102, -105, -108, -112, -114, -117, -119, -121, -123, -124, -125,
--126, -
60
61 126, -126, -126, -126, -125, -124, -123, -121, -119, -117, -114, -112, -108, -105, -102, -98, -94, -89, -8
-5, -80,
62
63 -75, -70, -65, -59, -54, -48, -42, -36, -30, -24, -18, -12, -6, 0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 59,
-65, 70,
64
65 75, 80, 85, 89, 94, 98, 102, 105, 108, 112, 114, 117, 119, 121, 123, 124, 125, 126, 126 };
66
67 //采样存储序列表
68 code char LIST_TAB[128] = { 0, 64, 32, 96, 16, 80, 48, 112,
69 8, 72, 40, 104, 24, 88, 56, 120,
70 4, 68, 36, 100, 20, 84, 52, 116,
71 12, 76, 44, 108, 28, 92, 60, 124,
72 2, 66, 34, 98, 18, 82, 50, 114,
73 10, 74, 42, 106, 26, 90, 58, 122,
74 6, 70, 38, 102, 22, 86, 54, 118,
75 14, 78, 46, 110, 30, 94, 62, 126,
76 1, 65, 33, 97, 17, 81, 49, 113,
77 9, 73, 41, 105, 25, 89, 57, 121,
78 5, 69, 37, 101, 21, 85, 53, 117,
79 13, 77, 45, 109, 29, 93, 61, 125,
80 3, 67, 35, 99, 19, 83, 51, 115,
81 11, 75, 43, 107, 27, 91, 59, 123,
82 7, 71, 39, 103, 23, 87, 55, 119,
83 15, 79, 47, 111, 31, 95, 63, 127
84 };
85
86
87 uchar COUNT=15,COUNT1=0,ADC_Count=0,LINE=15,G,T;
88 uchar i,j,k,b,p;
89 int Temp_Real,Temp_Imag,temp; // 中间临时变量
90 uint TEMP1;
91 uchar PWM;
92 int xdata Fft_Real[128];
93 int xdata Fft_Image[128]; // fft的虚部
94 uchar xdata LED_TAB2[64]; //记录 漂浮物 是否需要 停顿一下
95 uchar xdata LED_TAB[64]; //记录红色柱状
96 uchar xdata LED_TAB1[64]; //记录 漂浮点
97 void show_start();
98 void DelayMs(void);
99 /*------------------------------------------------
100 发送一个字节
101 ------------------------------------------------*/
102 void SendByte(unsigned char dat)
103 {
104 1 SBUF = dat;
105 1 while(!TI);
106 1 TI = 0;
C51 COMPILER V8.08 FFT 09/26/2012 16:52:51 PAGE 3
107 1 }
108 /*------------------------------------------------
109 发送一个字符串
110 ------------------------------------------------*/
111 void SendStr(unsigned char *s)
112 {
113 1 while(*s!='\0')// \0 表示字符串结束标志，
114 1 //通过检测是否字符串末尾
115 1 {
116 2 SendByte(*s);
117 2 s++;
118 2 }
119 1 }
120
121 void FFT()
122 {
123 1 //uchar x;
124 1 for( i=1; i<=7; i++) /* for(1) */
125 1 {
126 2 b=1;
127 2 b <<=(i-1); //碟式运算，用于计算 隔多少行计算 例如 第一极 1⌨️ 快捷键说明
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