LDC金属探测程序完整版

#include<intrins.h> #include<lcd.h> #include"temp.h" #define GPIO_MOTOR P1 //低四位motor1，高四位motor2 #define NULL 0 #define TRUE 1 #define FALSE 0 //配置的参数定义 #define TEST_RPMAX 0x00 #define TEST_RPMIN 0X3F // Final Test Range #define TEST_RP_MSB_MAX 0x12 /**< maximum value for proximity data */ #define TEST_RP_MSB_MIN 0x0A /**< minimum value for proximity data */ #define TEST_FC_MAX 0x0D5D /**< maximum value for frequency counter */ #define TEST_FC_MIN 0x0D39 /**< minimum value for frequency counter */ //LDC1000寄存器定义 详见芯片手册寄存器说明部分 // LDC COMMANDS #define LDC1000_CMD_REVID 0x00 #define LDC1000_CMD_RPMAX 0x01 #define LDC1000_CMD_RPMIN 0x02 #define LDC1000_CMD_SENSORFREQ 0x03 #define LDC1000_CMD_LDCCONFIG 0x04 #define LDC1000_CMD_CLKCONFIG 0x05 #define LDC1000_CMD_THRESHILSB 0x06 #define LDC1000_CMD_THRESHIMSB 0x07 #define LDC1000_CMD_THRESLOLSB 0x08 #define LDC1000_CMD_THRESLOMSB 0x09 #define LDC1000_CMD_INTCONFIG 0x0A #define LDC1000_CMD_PWRCONFIG 0x0B #define LDC1000_CMD_STATUS 0x20 #define LDC1000_CMD_PROXLSB 0x21 #define LDC1000_CMD_PROXMSB 0x22 #define LDC1000_CMD_FREQCTRLSB 0x23 #define LDC1000_CMD_FREQCTRMID 0x24 #define LDC1000_CMD_FREQCTRMSB 0x25 #define uint8_t unsigned char #define uint16_t unsigned int #define uint32_t unsigned long //引脚定义 sbit SDO =P2^3; //ldc1000的SDO sbit SDI =P2^2; //ldc1000的SDI sbit SCLK =P2^0; //ldc1000的SCLK sbit CS =P2^1; //ldc1000的CS sbit int0=P3^2; //ldc1000的INTB未用 sbit turn=P2^4; sbit led =P3^0; sbit beep=P3^1; uchar codea,codeb,f=1,RPMAX=0X10,RPMIN=0X33,m,h; int codem,fsen,delay=60000; unsigned char code number[10]={'0','1','2','3','4','5','6','7','8','9'}; //变量 bit direct=0; unsigned int cont=512,cont2=100,temp2; //时钟配置 uchar timer0=0,mm,ff; void delay2us(void); //延时 uchar read_spi(uchar); //SPI读函数 void write_spi(uint8_t add,uint8_t w_data); //SPI写函数 void ldc1000_int(void); void stop(void); //LDC1000初始化函数 void Com_Init(void) { IT0=1; EX0=1; EA=1; } void InitTimer0(void) { TMOD = 0x01; TH0 = 0x3C; TL0 = 0xB0; EA = 1; ET0 = 1; TR0 = 1; } void delay20ms(void) //误差 0us { unsigned char a,b; for(b=215;b>0;b--) for(a=45;a>0;a--); _nop_(); //if Keil,require use intrins.h _nop_(); //if Keil,require use intrins.h } void stop(void) interrupt 0 { void Motor(bit direct,unsigned motor,unsigned char speed); uchar temp=100; delay20ms(); if(int0==0) { while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; codea=read_spi(LDC1000_CMD_PROXLSB); codeb=read_spi(LDC1000_CMD_PROXMSB); codem=codeb*256+codea; if(codem<15000) { while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; while(delay--); delay=60000; while(temp--) Motor(0,1,2); } else { } LcdWriteCom(0x01); LcdWriteCom(0x01); LcdWriteCom(0x80+0x01); LcdWriteData('F'); LcdWriteData('I'); LcdWriteData('N'); LcdWriteData('D'); LcdWriteData(' '); LcdWriteData('S'); LcdWriteData('U'); LcdWriteData('C'); LcdWriteData('C'); LcdWriteData('E'); LcdWriteData('S'); LcdWriteData('S'); led=1; beep=0; while(1); /* while(delay--); delay=60000; while(delay--); delay=60000; temp2=codem; while(temp--) Motor(direct,0,2); temp=5; while(delay--); delay=60000; while(delay--); delay=60000; codea=read_spi(LDC1000_CMD_PROXLSB); codeb=read_spi(LDC1000_CMD_PROXMSB); codem=codeb*256+codea; if(codem>temp2) { LcdWriteCom(0x01); LcdWriteCom(0x01); LcdWriteCom(0x80+0x01); LcdWriteData('F'); LcdWriteData('I'); LcdWriteData('N'); LcdWriteData('D'); LcdWriteData(' '); LcdWriteData('S'); LcdWriteData('U'); LcdWriteData('C'); LcdWriteData('C'); LcdWriteData('E'); LcdWriteData('S'); LcdWriteData('S'); led=1; beep=0; while(1); } else { while(delay--); delay=60000; while(delay--); delay=60000; temp2=codem; temp=5; while(temp--) Motor(0,1,2); codea=read_spi(LDC1000_CMD_PROXLSB); codeb=read_spi(LDC1000_CMD_PROXMSB); codem=codeb*256+codea; if(codem<temp2) { LcdWriteCom(0x01); LcdWriteCom(0x01); LcdWriteCom(0x80+0x01); LcdWriteData('F'); LcdWriteData('I'); LcdWriteData('N'); LcdWriteData('D'); LcdWriteData(' '); LcdWriteData('S'); LcdWriteData('U'); LcdWriteData('C'); LcdWriteData('C'); LcdWriteData('E'); LcdWriteData('S'); LcdWriteData('S'); led=1; beep=0; } else { while(delay--); delay=60000; while(delay--); delay=60000; temp=3; while(temp--) Motor(1,1,2); LcdWriteCom(0x01); LcdWriteCom(0x01); LcdWriteCom(0x80+0x01); LcdWriteData('F'); LcdWriteData('I'); LcdWriteData('N'); LcdWriteData('D'); LcdWriteData(' '); LcdWriteData('S'); LcdWriteData('U'); LcdWriteData('C'); LcdWriteData('C'); LcdWriteData('E'); LcdWriteData('S'); LcdWriteData('S'); led=1; beep=0; } } while(temp--) Motor(direct,0,2); //direct=~direct; if(codem<18000) { while(temp--) Motor(direct,0,2); } } */ } } void Timer0Interrupt(void) interrupt 1 { TH0 = 0x3C; TL0 = 0xB0; timer0++; if(timer0==20) { mm++; if(mm==60) { ff++; mm=0; } if(ff==2) { LcdWriteCom(0x01); LcdWriteCom(0x80+0x01); LcdWriteData('T'); LcdWriteData('I'); LcdWriteData('M'); LcdWriteData('E'); LcdWriteData(' '); LcdWriteData('O'); LcdWriteData('V'); LcdWriteData('E'); LcdWriteData('R'); LcdWriteData('.'); LcdWriteData('.'); LcdWriteData('.'); while(1); } timer0=0; LcdWriteCom(0x80+0x01); LcdWriteCom(0x80+0x01); LcdWriteCom(0x80+0x01); LcdWriteData(number[ff]); LcdWriteCom(0x80+0x02); LcdWriteData(':'); LcdWriteCom(0x80+0x03); LcdWriteData(number[mm/10]); LcdWriteCom(0x80+0x04); LcdWriteData(number[mm%10]); LcdWriteData(' '); LcdWriteData(' '); LcdWriteData(' '); if(mm%5==0) LcdDisplay(Ds18b20ReadTemp()); } } void write_spi(uint8_t add,uint8_t w_data) { uint8_t ss; uint8_t sss=0; SCLK=0; CS=0; for(ss=0;ss<8;ss++) { SCLK=0; delay2us(); SDI=add&0x80; delay2us(); SCLK=1; add=add<<1; } for(ss=0;ss<8;ss++) { SCLK=0; delay2us(); SDI=w_data&0x80; delay2us(); SCLK=1; w_data=w_data<<1; } SCLK=0; CS=1; } //LDC1000读数据 uchar read_spi(uchar add) { uint8_t ss ,t; uint8_t sss=0; SCLK=0; //SCLK=0; CS=0; //CS= add+=0x80; //地址高位置1为读 for(ss=0;ss<8;ss++) { SCLK=0; delay2us(); SDI=add&0x80; delay2us(); SCLK=1; add=add<<1; } delay2us(); for(ss=0;ss<8;ss++) { sss=sss<<1; SCLK=0; delay2us(); t=SDO; sss=sss+t; SCLK=1; delay2us(); } SCLK=0; //SCLK=0; CS=1; //CS=1 return sss; } //LDC1000初始化函数 void ldc1000_int(void) { write_spi(LDC1000_CMD_RPMAX, RPMAX); //配置RP最大值 write_spi(LDC1000_CMD_RPMIN, RPMIN); //配置RP最小值 write_spi(LDC1000_CMD_SENSORFREQ, 0x94); //配置传感器频率 待定 write_spi(LDC1000_CMD_LDCCONFIG, 0x07); //配置LDC