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#include "config.h"
//#include "LPC21xx.h"
#include "math.h"
//#define Fpclk 12000000
//typedef unsigned char uint8; /* defined for unsigned 8-bits integer variable 無符號8位整型變量 */
//typedef signed char int8; /* defined for signed 8-bits integer variable 有符號8位整型變量 */
//typedef unsigned short uint16; /* defined for unsigned 16-bits integer variable 無符號16位整型變量 */
//typedef signed short int16; /* defined for signed 16-bits integer variable 有符號16位整型變量 */
//typedef unsigned int uint32; /* defined for unsigned 32-bits integer variable 無符號32位整型變量 */
//typedef signed int int32; /* defined for signed 32-bits integer variable 有符號32位整型變量 */
//typedef float fp32; /* single precision floating point variable (32bits) 單精度浮點數（32位長度） */
//typedef double fp64; /* double precision floating point variable (64bits) 雙精度浮點數（64位長度） */
#define IO_RS 0x1000000
#define IO_RW 0x2000000
#define IO_EN 0x4000000
#define LED 0X01
#define KEY1 (IO0PIN&(1<<20))
#define KEY2 (IO0PIN&(1<<21))
int32 k=0,ADC_Data,tt1,tt2;
uint32 A=1,FG1=1,FG2=2;
uint32 a,i,h,j,p,q,m,n,u,v;
double c,s,data_1=0,data_2=0,data_3=0,data_4=0;
double x,y,PI=3.141592653589793238462643383279502;
int32 Buffer[256];
double SINCE[19]={
0.0000,0.0872,0.1736,0.2588,0.3420,0.4226,
0.5000,0.5736,0.6428,0.7071,0.7660,0.8192,
0.8660,0.9063,0.9397,0.9659,0.9848,0.9962,
1.0000,
};
double COSCE[19]={
1.0000,0.9962,0.9848,0.9659,0.9397,0.9063,
0.8660,0.8192,0.7660,0.7071,0.6428,0.5736,
0.5000,0.4226,0.3420,0.2588,0.1736,0.0872,
0.0000,
};
const int16 sindata[]={
0x80,0x83,0x86,0x89,0x8c,0x8f,0x92,0x95,
0x98,0x9b,0x9e,0xa1,0xa4,0xa7,0xaa,0xad,
…………
…………限于本文篇幅余下代碼請從51黑下載附件…………
0xfc,0xfd,0xfd,0xfe,0xfe,0xfe,0xfe,0xfe,
};
#define RS_1 IO1SET=(IO_RS&0xFFFFFFFF)
#define RS_0 IO1CLR=(IO_RS&0xFFFFFFFF)
#define RW_1 IO1SET=(IO_RW&0xFFFFFFFF)
#define RW_0 IO1CLR=(IO_RW&0xFFFFFFFF)
#define EN_1 IO1SET=(IO_EN&0xFFFFFFFF)
#define EN_0 IO1CLR=(IO_EN&0xFFFFFFFF)
void delayms(unsigned int t)
{
unsigned char u,v;
for(u=0;u<100;u++)
for(v=0;v<81;v++);
}
void LCD_write_com(unsigned char com) //LCD寫入命令函數
{
RS_0;
RW_0;
EN_1;
IO1SET=com<<16;
delayms(5);
EN_0;
IO1CLR=0xFF0000;
}
void LCD_write_data(unsigned char data) //寫入數據函數
{
RS_1;
RW_0;
EN_1;
IO1SET=data<<16;
delayms(5);
EN_0;
IO1CLR=0xFF0000;
}
void LCD_clear() //LCD清屏函數
{
LCD_write_com(0x01);
delayms(5);
}
void LCD_write_char(unsigned char x,unsigned char y,unsigned char s) //寫入字符函數
{
if (y == 0)
{
LCD_write_com(0x80+x);
}
else
{
LCD_write_com(0xC0+x);
}
LCD_write_data(s);
}
void LCD_write_string(unsigned char x,unsigned char y,unsigned char *s) //寫入字符串函數
{
if (y == 0)
{
LCD_write_com(0x80 + x); //表示第一行
}
else
{
LCD_write_com(0xC0 + x); //表示第二行
}
while (*s)
{
LCD_write_data( *s);
s++;
}
}
void LCD_init() //LCD初始化
{
LCD_write_com(0x38); //顯示模式設置
delayms(5);
LCD_write_com(0x38);
delayms(5);
LCD_write_com(0x38);
delayms(5);
LCD_write_com(0x38);
LCD_write_com(0x08); //顯示關閉
LCD_write_com(0x01); //清屏
LCD_write_com(0x06); //顯示光標移動設置
delayms(5);
LCD_write_com(0x0C); //顯示開及光標設置
}
/*
void UART0Init(uint32 bps)
{
uint16 Fdiv;
PINSEL0 = (PINSEL0 & (~0x0F)) | 0x05;
U0LCR = 0x83;
Fdiv = (Fpclk / 16) / bps;
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0x03;
}
*/
void __irq IRQ_Timer0 (void)
{
// for(i=0;i<256;i++)
// {
// y=COSCE[a];
// x=SINCE[a];
// s=(y*sindata[i]);
// c=(x*cosdata[i]);
//
// sindata[i]=sin(2.0*acos(-1.0)/256*i);
// cosdata[i]=cos(2.0*acos(-1.0)/256*i);
//
// h=(s*0x1ff+0x1ff);
// h=s+c;
// DACR=((sindata[i]<<6))|(1<<16);
// for(j=0;j<0x20;j++);
if((IO0PIN&KEY1)==0)
{
if(FG1!=(A-5))
{
FG1=A;A+=5;i=0;
if(A>360) A=0;
}
}
if((IO0PIN&KEY1)!=0){ FG1=1; }
a=A*180/PI;
if((IO0PIN&KEY2)==0)
{
if(FG2!=(A+5))
{FG2=A;A-=5;i=0;
if(A>360)A=0;}
}
if((IO0PIN&KEY2)!=0){ FG2=1; }
if(A<=90) a=A/5;
if(A>90&A<=180) a=36-A/5;
if(A>180&A<270) a=A/5-36;
if(A>=270&A<360) a=72-A/5;
y=COSCE[a];
x=SINCE[a];
s=(y*sindata[i]);
c=(x*cosdata[i]);
// sindata[i]=sin(2.0*acos(-1.0)/256*i);
// cosdata[i]=cos(2.0*acos(-1.0)/256*i);
// h=(s*0x1ff+0x1ff);
h=s+c;
DACR=((h<<6))|(1<<16);
for(j=0;j<0x20;j++);
AD0CR = (AD0CR&0x00FFFF00)|0x01|(1 << 24); // 設置AD0.0，并進行第一次轉換
while( (AD0DR&0x80000000)==0 ); // 等待轉換結束
ADC_Data = AD0DR; // 讀取ADC結果
ADC_Data = (ADC_Data>>6) & 0x3FF; // 提取AD轉換值
Buffer[i]=ADC_Data;
LCD_write_char(9,0,A/100%10+0X30);
LCD_write_char(10,0,A/10%10+0X30);
LCD_write_char(11,0,A%10+0X30);
for(u=0;u<256;u++)
{
data_1 = data_1 +(Buffer[u]-0x7f)*(cosdata[u]-0x7f)/256;//-5170)*PI/128;
data_2 = data_2 +(Buffer[u]-0x7f)*(sindata[u]-0x7f)/256;//-5170)*PI/128;
}
data_4 = atan(data_1 /data_2)*180/acos(-1.0);
tt1=data_4*10;//1;
if(A>90&A<180) tt1=1800-tt1;
if(A>180&A<270) tt1=1800+tt1;
if(A>270&A<360) tt1=3600-tt1;
LCD_write_char(9,1,tt1/1000%10+0X30);
LCD_write_char(10,1,tt1/100%10+0X30);
LCD_write_char(11,1,tt1/10%10+0X30);
LCD_write_char(12,1,'.');
LCD_write_char(13,1,tt1%10+0X30);
// LCD_write_char(6,1,tt2/1000%10+0X30);
// LCD_write_char(7,1,tt2/100%10+0X30);
// LCD_write_char(8,1,tt2/10%10+0X30);
// LCD_write_char(9,1,'.');
// LCD_write_char(10,1,tt2%10+0X30);
i++;
if(i>=256) i=0;
T0IR = 0x02; /* 清除中斷標志 */
VICVectAddr = 0x00; /* 通知VIC中斷處理結束 */
//}
}
void Time0Init(void)
{
T0TC = 0; // 定時器T0初始化
T0PR = 10; // 設置定時器0分頻為100分頻，得120000Hz
T0MCR = 0x03<<3; // 匹配通道MR1匹配中斷并復位TC
T0MR0 = Fpclk/12000; // MR0比較值（0.5秒定時值）
T0MR1 = Fpclk/1200; // MR1比較值（0.5秒定時值）
T0EMR = 0x30; // 設置定時器0的MR0匹配輸出，輸出方式為翻轉
T0TCR = 0x03; // 啟動并復位T0TC
T0TCR = 0x01;
T0IR = 0x02;
/* 設置定時器0中斷IRQ */
VICIntSelect = 0x00; // 所有中斷通道設置為IRQ中斷
VICVectCntl0 = 0x20 | 0x04; // 分配定時器0中斷到通道0(最高優先級)
VICVectAddr0 = (uint32)IRQ_Timer0; // 設置中斷服務程序地址向量
VICIntEnable = (1<<4); // 使能定時器0中斷
// IRQEnable(); // 使能IRQ中斷
}
int main(void)
{
PINSEL0|=0x00000000;
PINSEL1 |= 0x01400000;
PINSEL1 = (PINSEL1&(~(0x03<<18))) | (0x02<<18); // P0.25 連接Aout
// UART0Init(9600);
IO0DIR|=0X01;
IO1DIR|=0x07ff0000;
LCD_init();
Time0Init();
AD0CR = (1 << 0) |
((Fpclk / 1000000 - 1) << 8) |
(0 << 16) |
(0 << 17) |
(1 << 21) |
(0 << 22) |
(1 << 24) |
(0 << 27);
delayms(10);
ADC_Data = AD0DR;
LCD_write_string(0,0,"in:");
LCD_write_string(0,1,"out:");
while(1)
{
// y=COSCE[a];
// x=SINCE[a];
// s=(y*sindata[i]);
// c=(x*cosdata[i]);
// sindata[i]=sin(2.0*acos(-1.0)/256*i);
// cosdata[i]=cos(2.0*acos(-1.0)/256*i);
……………………
…………限于本文篇幅余下代碼請從51黑下載附件…………

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