LC.rar_AVR 电感_LC_电感测试仪

/***************************************************** S1:校正。 拨至“校正”位置，开始自校，等屏上显示频率稳定后拨至“测量”位置 ,显示标准电容和电感值。同时按B1和B2退出校正模式。 S2: 1-2接通。脉冲测量频率最大6MHz,不能调触发电平；2-3接通，脉冲测量频率最大1MHz,可调整触发电平，用T1设定，JP1短接显示屏显示触发电平大小。 B1: 电容测量时: 按下回零 电感测量时: 按下回零 频率测量时: 按下切换显示频率或周期时间 脉冲测量时：按下切换显示频率+占宽比或周期时间+占宽比或高低电平时间 计数器时：按下回零 温度测量时：按下设定上下温度报警点 B2: 频率测量时：按下按频率测量-〉脉冲测量-〉计数器-〉温度测量-〉频率测量 循环切换 电容电感测量时：按下开始频率测量 设定温度报警点时：设定温度加 B3: 频率测量时：按下开始电容电感测量 电容电感测量时：测量电感或电容切换 计数器时：按下暂停或重启 设定温度报警点时：设定温度减 进入温度测量功能时查一遍18B20的个数，然后按查到的个数显示各个器件的温度。 Chip type : ATmega88V Clock frequency : 16.000000 MHz Memory model : Small External SRAM size : 0 Data Stack size : 128 *****************************************************/ #include <mega88.h> #include <delay.h> #include <stdlib.h> #include "lcd1602.h" #asm .equ __w1_port=0x08 ;PORTC .equ __w1_bit=0 #endasm //#include <1wire.h> #include <ds18b20.h> #define LCD_EN_PORT PORTD #define LCD_EN_DDR DDRD #define LCD_EN (1<<7) // #define LCD_RS_PORT PORTB #define LCD_RS_DDR DDRB #define LCD_RS (1<<5) // #define LCD_DATA_PORT PORTB #define LCD_DATA_DDR DDRB #define LCD_DATA_BIT 0b00011110 // flash unsigned char data[8]={0x0C,0x0C,0x03,0x04,0x04,0x04,0x03,0x00};//℃ flash unsigned char data1[8]={0x04,0x0E,0x15,0x04,0x04,0x04,0x04,0x00};//↑ void LCD_en_write(void) //液晶使能 { LCD_EN_PORT|=LCD_EN; delay_us(12); LCD_EN_PORT&=~LCD_EN; delay_us(12); } void LCD_write_low(unsigned char temp) { LCD_DATA_PORT&=~LCD_DATA_BIT; //清高四位 LCD_DATA_PORT|=(temp<<1)&LCD_DATA_BIT; //写低四位 LCD_en_write(); } void LCD_write_high(unsigned char temp) { LCD_DATA_PORT&=~LCD_DATA_BIT; //清高四位 LCD_DATA_PORT|=(temp>>3)&LCD_DATA_BIT; //写低四位 LCD_en_write(); } void LCD_write_command(unsigned char command) //写指令 { delay_us(20); LCD_RS_PORT&=~LCD_RS; //RS=0 LCD_write_high(command); LCD_write_low(command); } void LCD_write_data(unsigned char data) //写数据 { delay_us(16); LCD_RS_PORT|=LCD_RS; //RS=1 LCD_write_high(data); LCD_write_low(data); } void LCD_clear(void) //清屏 { LCD_write_command(0x01); delay_ms(2); } void LCD_inital(void) { LCD_DATA_DDR|=LCD_DATA_BIT; //数据口方向为输出 LCD_EN_DDR|=LCD_EN; //设置EN方向为输出 LCD_RS_DDR|=LCD_RS; //设置RS方向为输出 LCD_write_low(0x03); delay_ms(20); LCD_write_low(0x03); delay_us(200); LCD_write_low(0x03); delay_us(20); LCD_write_low(0x02); //4位显示 LCD_write_command(0x28); //4位,设定两行 LCD_write_command(0x0C); //显示开 LCD_write_command(0x01); //清屏 delay_ms(2); } void write_user_capter(unsigned char ascii,flash unsigned char *z) //ascii为与要定义的图案对应的ascii码值（0到7间任选） //z为字码定义数组 { unsigned char address=0,i,temp=0; temp=(ascii&0x07)<<3; for(i=0;i<8;i++) { address = 0x40 +temp+ i; LCD_write_command( address ); delay_us(5); LCD_write_data ( *(z++)); delay_us(5); } } void LCD_goto_xy( unsigned char x, unsigned char y ) //写地址函数 { unsigned char address; if (y == 0) address = 0x80 + x; else address = 0xc0 + x; LCD_write_command( address); } void LCD_put_c( unsigned char data) //列x=0~15,行y=0,1 { LCD_write_data( data); } void LCD_put_str(unsigned char X,unsigned char Y, flash unsigned char *s) //列x=0~15,行y=0,1 { LCD_goto_xy( X, Y ); //写地址 while (*s) // 写显示字符 { LCD_write_data( *s ); s ++; } } void LCD_put_str2(unsigned char X,unsigned char Y, unsigned char *s) //列x=0~15,行y=0,1 { LCD_goto_xy( X, Y ); //写地址 while (*s) // 写显示字符 { LCD_write_data( *s ); s ++; } } #define MAX_DS1820 2 // maximum number of DS1820 devices connected to the 1 Wire bus #define TCNT1 (*(unsigned int *)0x84) #define ICR1 (*(unsigned int *)0x86) #define T0_OFF TCCR0B=0x00 #define T0_ON TCCR0B=0x05 #define SET_T0_TIME TCNT0=0x64 #define T1_OFF TCCR1B=0x00 #define T1_ON TCCR1B=0x07 #define C_stand 900.0 //标准电容值（pF） #define B1 PIND.2 #define B2 PIND.3 #define B3 PIND.6 #define K1 PORTD.1 #define K2 PORTD.0 #define AD_IE_OFF ADCSRA&=~(1<<7) #define AD_IE_ON ADCSRA|=(1<<7) #define AD_START ADCSRA|=(1<<6) unsigned char str[10]; unsigned char rom_codes[MAX_DS1820][9]; unsigned char alarm_rom_codes[MAX_DS1820][9]; unsigned char time0_expend; //定时器0扩展计数器 unsigned char trig_time; //频率闸门时间 unsigned char mode; unsigned char tempture_mode; unsigned char ds18B20_devices; unsigned char temp_tp,temp_bs,; unsigned int top_time,base_time,count_h; unsigned char Capture_div; float trig_voltage; unsigned long frequnce; bit t1_over_flower; bit error_over_flower; bit lower_pri; bit save_stray; bit init_senor; unsigned char mode_using; bit test_complete; bit zero; eeprom float c1; eeprom float l1; eeprom signed int alarm_t1_max,alarm_t1_min,alarm_t2_max,alarm_t2_min; eeprom unsigned long f1; signed int alarm[4]; float cs; float ls; float cx; float lx; void int_inital_on(void) { EICRA=0x0A; EIFR=0x03; EIMSK=0x03; PCIFR=0x04; PCICR=0x04; PCMSK2=0x40; } void int_inital_off(void) { EIMSK=0x00; EIFR=0x03; PCMSK2=0x00; PCIFR=0x04; } void cal_set_par(unsigned long f2) { c1=C_stand*f2*f2/((float)f1*f1-(float)f2*f2); l1=(1000000000000000000.0/(39.4784176*f1*f1*c1)); } float cal_c(unsigned long f2) { float temp; temp=(((float)f1*f1)/((float)f2*f2)-1)*c1; //temp=((1.0/(39.4784176*l1*(1.0E-6)*f2*f2)))*(1.0E12)-c1; return temp; } float cal_l(unsigned long f2) { float temp; temp=(((float)f1*f1)/((float)f2*f2)-1)*l1; //temp=(1.0/(39.4784176*c1*(1.0E-12)*f2*f2))*(1.0E6)-l1; return temp; } void disp_trig_vol(void) { LCD_put_str(0,0,"Trig: V/ S"); ftoa(trig_voltage,2,str); LCD_put_str2(5,0,str); ftoa(trig_time/100.0,2,str); LCD_put_str2(11,0,str); } void disp_fr_vol(unsigned char x,unsigned char y,float frec) { if(frec<1000) { ftoa(frec,2,str); LCD_put_str2(x,y,str); } else { if(frec<1000000) { ftoa(frec/1000.0,3,str); LCD_put_str2(x,y,str); LCD_put_c('K'); } else { ftoa(frec/1000000.0,4,str); LCD_put_str2(x,y,str); LCD_put_c('M'); } } LCD_put_c('H'); LCD_put_c('z'); } void disp_fr(void) { delay_ms(200/trig_time); LCD_put_str(0,1," "); LCD_put_str(0,1,"Freq="); disp_fr_vol(5,1,frequnce); if(lower_pri==1) { if(trig_time<100) trig_time*=10; else trig_time=200; } } void disp_cycle(void) { delay_ms(200/trig_time); LCD_put_str(0,1," "); LCD_put_str(0,1,"Cycle="); if(frequnce<1000) { if(frequnce==0) { LCD_goto_xy(7,1); LCD_put_c(1); LCD_put_c(' ');