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#include "reg51.h"
#include<stdio.h>
#include<intrins.h>
#define uint8 unsigned char
#define uint16 unsigned int
#define uchar unsigned char
#define uint unsigned int
uint16 cnt2ms; //10ms計(jì)數(shù)器
uint8 cnt1s; //1秒計(jì)數(shù)器
#define Z1 13700053.00
#define Z2 3685279.00
//電感--------------------------------
float LZ=0;
#define C1 0.0461
uint8 KL=0; //
unsigned int Pulsecnt=0; //脈沖個(gè)數(shù)
unsigned int Pulsenum; //脈沖個(gè)數(shù)
uint8 start=0; //
uint16 PulseTime; //10ms計(jì)數(shù)器
uint16 Pulse; //10ms計(jì)數(shù)器
bit flag=0;
uint8 CH=0; //
unsigned long x;
void Init_Extint(void);
void TimerInitProc();
void Init_System(void);
void Display(uint8 chose_dat, uint8 dat);
void ShowDisp(uint8 tPulsenum, uint8 tPulsecnt, uint8 tcnt1s);
void DelayMs(uint8 Ms);
uint8 Pulse_FLAG=0;
uint8 Pulse_5=0;
/********************************按鍵*****************************************/
sbit K3=P1^2;
sbit A0=P2^4;
sbit A1=P2^3;
sbit RED=P2^0;
/********************************LCD液晶**************************************/
#define LCD_Data P0 //LCD的數(shù)據(jù)口
sbit LCD_BF=LCD_Data^7; //LCD忙信號(hào)位
sbit LCD_RS=P2^5;
sbit LCD_RW=P2^6;
sbit LCD_EN=P2^7;
#define LCD_GO_HOME 0x02 //AC=0，光標(biāo)、畫(huà)面回HOME位
//輸入方式設(shè)置
#define LCD_AC_AUTO_INCREMENT 0x06 //數(shù)據(jù)讀、寫(xiě)操作后，AC自動(dòng)增一
#define LCD_AC_AUTO_DECREASE 0x04 //數(shù)據(jù)讀、寫(xiě)操作后，AC自動(dòng)減一
#define LCD_MOVE_ENABLE 0x05 //數(shù)據(jù)讀、寫(xiě)操作，畫(huà)面平移
#define LCD_MOVE_DISENABLE 0x04 //數(shù)據(jù)讀、寫(xiě)操作，畫(huà)面不動(dòng)
//設(shè)置顯示、光標(biāo)及閃爍開(kāi)、關(guān)
#define LCD_DISPLAY_ON 0x0C //顯示開(kāi)
#define LCD_DISPLAY_OFF 0x08 //顯示關(guān)
#define LCD_CURSOR_ON 0x0A //光標(biāo)顯示
#define LCD_CURSOR_OFF 0x08 //光標(biāo)不顯示
#define LCD_CURSOR_BLINK_ON 0x09 //光標(biāo)閃爍
#define LCD_CURSOR_BLINK_OFF 0x08 //光標(biāo)不閃爍
//光標(biāo)、畫(huà)面移動(dòng)，不影響DDRAM
#define LCD_LEFT_MOVE 0x18 //LCD顯示左移一位
#define LCD_RIGHT_MOVE 0x1C //LCD顯示右移一位
#define LCD_CURSOR_LEFT_MOVE 0x10 //光標(biāo)左移一位
#define LCD_CURSOR_RIGHT_MOVE 0x14 //光標(biāo)右移一位
//工作方式設(shè)置
#define LCD_DISPLAY_DOUBLE_LINE 0x38 //兩行顯示
#define LCD_DISPLAY_SINGLE_LINE 0x30 //單行顯示
/*定義子程序*/
void LCD_ClrAll(void); //清屏
void Judge_LCD_busy(void); //檢測(cè)是否忙碌
void LCD_Write(uchar WriteData); //寫(xiě)控制字
void LCD_write_data(uchar LCD_data); //寫(xiě)數(shù)據(jù)顯示
void LCD_cursor(uchar x); //光標(biāo)起始地址
void LCD_printc(unsigned char lcd_data) ; //輸出一個(gè)字符
void LCD_prints(unsigned char *lcd_string);//輸出字符串
/*LCD1602忙碌判斷子程序*/
void Judge_LCD_busy(void) //判斷LCD1602是否忙狀態(tài)
{
while(1)
{
LCD_EN=0;
LCD_RS=0;
LCD_RW=1;
LCD_Data=0xff;
LCD_EN=1; //EN 是 1—0 使能
if(!LCD_BF)break; //LCD_BF=1表示忙碌，需要等待。
}
LCD_EN=0;
}
/******LCD清屏***************/
void LCD_ClrAll(void)
{
Judge_LCD_busy(); //判斷是否忙碌
LCD_RS=0;
LCD_RW=0;
LCD_Data=0x01;
LCD_EN=1;
LCD_EN=0;
}
/*******LCD寫(xiě)數(shù)據(jù)定義各種模式*********/
void LCD_Write(uchar WriteData) //寫(xiě)指令到LCD
{
Judge_LCD_busy();
LCD_RS=0;
LCD_RW=0;
LCD_Data=WriteData; //把WriteData的數(shù)據(jù)送到數(shù)據(jù)口
LCD_EN=1;
LCD_EN=0;
}
/********LCD顯示數(shù)據(jù)***********/
void LCD_write_data(uchar LCD_data) //輸出一個(gè)字節(jié)數(shù)據(jù)到LCD
{
Judge_LCD_busy();
LCD_RS=1;
LCD_RW=0;
LCD_Data=LCD_data;
LCD_EN=1;
LCD_EN=0;
}
/****光標(biāo)位置的確定***/
void LCD_cursor(uchar x) //LCD光標(biāo)定位到x處
{
LCD_Write(0x80+x); //第一行地址是0x80
}
/*輸出一個(gè)字符*/
void LCD_printc(unsigned char lcd_data)
{
LCD_write_data(lcd_data);
}
/*輸出字符串*/
void LCD_prints(unsigned char *lcd_string)
{
unsigned char i=0;
while(lcd_string[i]!=0x00)
{
LCD_write_data(lcd_string[i]);
i++;
}
}
/*初始化程序*/
void LCD_initial(void) //初始化LCD
{
LCD_Write(LCD_AC_AUTO_INCREMENT|LCD_MOVE_DISENABLE);
LCD_Write(LCD_DISPLAY_ON|LCD_CURSOR_OFF);
LCD_Write(LCD_DISPLAY_DOUBLE_LINE);
LCD_ClrAll();
}
/****延時(shí)******/
void delay_1ms(uint x)
{
uint j;
uchar i;
for(j=0;j<x;j++)
{
for(i=0;i<120;i++);
}
}
void Key_SM(void){
if(K3==0)
{
delay_1ms(5);
if(K3==0){
RED=0;
LCD_cursor(0x00);
LCD_prints(" MEASURE Lx ");
//----電感檔-------
A0=0;
A1=0;
CH=2;//電感檔
while(K3==0){}
}
}
}
void Value_to_ASCIIL(unsigned long value,uchar add)
{
unsigned char temp[] = "000000uH ";
temp[0] = value/100000 + 0x30;
value = value%100000;
temp[1] = value/10000 + 0x30;
value = value%10000;
temp[2] = value/1000 + 0x30;
value = value%1000;
temp[3] = value/100 + 0x30;
value = value%100;
temp[4] = value/10 + 0x30;
value = value%10;
temp[5] = value + 0x30;
LCD_cursor(add); //光標(biāo)起始地址 ，第一行地址是0x00~0x0F，第二行地址是0x40~0x4f
LCD_prints(temp);
}
//--------------------主程序--------------------------------
void main()
{
TMOD=0x51; //設(shè)置定時(shí)器0，方式1:16位定時(shí)器
TH1=0;
TL1=0;
TH0=(65536-2000)/256; //設(shè)定定時(shí)周期
TL0=(65536-2000)%256;
TR0=1;
TR1=1;
ET1=1;
ET0=1;
EA=1;
A0=1;
A1=0;
LCD_initial();
delay_1ms(50);
LCD_initial();
delay_1ms(50);
LCD_cursor(0x00);
LCD_prints(" Welcome ");
RED=1;
LCD_cursor(0x45);
CH=0;
while(1)
{
Key_SM();
if(flag==1){
flag=0;
x=Pulsenum*65536+TH1*256+TL1;//計(jì)算1s內(nèi)的脈沖個(gè)數(shù)，頻率=脈沖個(gè)數(shù)
if(CH==2){
LZ=(x*39.49*C1)/1000000;
LZ=LZ*x;
LZ=1000000/LZ;
if(x==0)LZ=0;
if(LZ>999999)LZ=999999; //限制最高值
Value_to_ASCIIL(LZ,0x44);//更新電感值顯示
}
cnt2ms=0;
Pulsenum=0;
TH1=0;
TL1=0;
TR1=1;
}
}
}
/*******************************************************************************
* 函 數(shù) 名: Exti0_interrupt
* 函數(shù)功能: /T0引腳下降沿進(jìn)入中斷
* 入口參數(shù): 無(wú)
* 返 回: 無(wú)
*******************************************************************************/
void T1_interrupt(void) interrupt 3 using 0
{
Pulsenum++; //保存測(cè)得脈搏值
}
/********************************************************************
函數(shù)功能：定時(shí)器/計(jì)數(shù)器1中斷處理
入口參數(shù)：null
返 回：null
備 注：null
********************************************************************/
void Timer0IntProc() interrupt 1 using 0 //2ms
{
TH0=(65536-2000)/256;
TL0=(65536-2000)%256;
cnt2ms++;
if(cnt2ms==497) //1s計(jì)時(shí)到
{
TR1=0;
cnt2ms = 0;
flag=1;
}
}
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