蓝桥杯单片机十二届国赛
main.c
#include "Define.h"
bit flag,flag_set;
u8 flag_display;
u8 time_sonic;
u16 length,length_save;
u8 time_key,test;
bit flag_C_F;
u8 set_time[5]={2,3,5,7,9};
u8 compare_time=2;
u8 local_time;
u16 set_length=20,set_length_compare;
u8 G_D_Z=0;
bit flag_sonic;
u16 length_max=0,length_min=100,length_arv=0;
bit flag_light=1,flag_light_pro;
u8 time_adc,ligth;
u8 Sec_pro;
u16 sonic_count;
u8 LED=0XFF;
u8 count=0;
void adc_process()
{
if(time_adc>=100)
{
time_adc=0;
Read_adc();
ligth=Read_adc();
// if(flag_C_F==0)
// {
flag_light_pro=flag_light;
if(ligth<50)
flag_light=0;
else
flag_light=1;
if(flag_light_pro==1&&flag_light==0)
{
flag_sonic=1;//打开触发
}
// }
if(length_save<=10)
{
write_adc(51);
}
else if(length_save>=80)
{
write_adc(255);
}
else
{
write_adc((u8)2.914f*length_save+21.857f);
}
}
}
void sonic_process()
{
if(time_sonic>=100)
{
time_sonic=0;
length=Sonic_receive();
if(flag_C_F==0)
{
if(flag_sonic==1)
{
sonic_count++;
length_save=length;
flag_sonic=0;
if(length_save>length_max)
length_max=length_save;
else if(length_save<length_min)
length_min=length_save;
length_arv=(length_min+length_max)*10/sonic_count;
}
}
if(flag_C_F==1)
{
if((Sec%compare_time==0)&&(Sec_pro!=Sec))
{
length_save=length;
sonic_count++;
if(length_save>length_max)
length_max=length_save;
else if(length_save<length_min)
length_min=length_save;
length_arv=(length_min+length_max)*10/sonic_count;
if(length_save>=(set_length_compare-5)&&(length_save<=(set_length_compare+5)))
{
count++;
}
else
{
count=0;
}
}
}
}
}
void Key_process()
{
if(time_key>=100)
{
time_key=0;
Key_Scan3();
if(trg==0x88)//4
{
flag=~flag;
flag_set=0;
flag_display=0;
compare_time=set_time[local_time];
set_length_compare=set_length;
}
else if(trg==0x84)//5
{
if(flag==1)
{
flag_set=~flag_set;
}
else if(flag==0)
{
if(flag_display==2)
{
G_D_Z=0;
}
flag_display++;
flag_display%=3;
}
}
else if(trg==0x48)//8
{
if(flag_display==1)
{
if(flag_C_F==1)
count=0;
flag_C_F=~flag_C_F;
if(flag_C_F==1)
flag_sonic=0;
}
else if(flag_display==2)
{
G_D_Z++;
G_D_Z%=3;
}
}
else if(trg==0x44)//9
{
if(flag_set==0)
{
local_time++;
local_time%=5;
}
else if(flag_set==1)
{
set_length+=10;
if(set_length==90)
set_length=10;
}
}
}
}
u8 ds1302_time;
void ds1302_process()
{
if(ds1302_time>=100)
{
ds1302_time=0;
Sec_pro=Sec;
Read_time();
}
}
void LED_process()
{
if(flag_display==0)
LED=~0X01;
else if(flag_display==1)
LED=~0X02;
else if(flag_display==2)
LED=~0X04;
if(flag_C_F==0)
LED&=~0X08;
else
LED|=0X08;
if(count>=3)
LED&=~0X10;
else
LED|=0X10;
if(flag_light==1)
LED&=~0X20;//0010 0000
else
LED|=0X20;
Device_Ctri(0x80,LED);
}
void Smg_process()
{
if(flag==0)//显示界面
{
if(flag_display==0)//时间显示
{
Smg_show[0]=Smg_code[Hour/10];
Smg_show[1]=Smg_code[Hour%10];
Smg_show[2]=0x40;
Smg_show[3]=Smg_code[Min/10];
Smg_show[4]=Smg_code[Min%10];
Smg_show[5]=0x40;
Smg_show[6]=Smg_code[Sec/10];
Smg_show[7]=Smg_code[Sec%10];
}
else if(flag_display==1)//距离显示
{
Smg_show[0]=0x38;
if(flag_C_F==0)
Smg_show[1]=Smg_code[12];
else
Smg_show[1]=Smg_code[15];
Smg_show[2]=Smg_code[count];
Smg_show[3]=0x00;
Smg_show[4]=0x00;
Smg_show[5]=Smg_code[length_save>99 ? (length_save/100):16];
Smg_show[6]=Smg_code[length_save>9 ? (length_save/10%10):16];
Smg_show[7]=Smg_code[length_save%10];
}
else if(flag_display==2)//数据显示
{
Smg_show[0]=0x76;
Smg_show[2]=0x00;
Smg_show[3]=0x00;
if(G_D_Z==0)//最大
{
Smg_show[1]=0x01;
Smg_show[4]=0x00;
Smg_show[5]=Smg_code[length_max>99 ? (length_max/100):16];
Smg_show[6]=Smg_code[length_max>9 ? (length_max/10%10):16];
Smg_show[7]=Smg_code[length_max%10];
}
else if(G_D_Z==1)//最小
{
Smg_show[1]=0x08;
Smg_show[4]=0x00;
Smg_show[5]=Smg_code[length_min>99 ? (length_min/100):16];
Smg_show[6]=Smg_code[length_min>9 ? (length_min/10%10):16];
Smg_show[7]=Smg_code[length_min%10];
}
else if(G_D_Z==2)//均值
{
Smg_show[1]=0x40;
Smg_show[4]=Smg_code[length_arv>999 ? (length_arv/1000):16];
Smg_show[5]=Smg_code[length_arv>99 ? (length_arv/100%10):16];
Smg_show[6]=Smg_code[length_arv/10%10]|0x80;
Smg_show[7]=Smg_code[length_arv%10];
}
}
}
else if(flag==1)//参数设计界面
{
Smg_show[0]=0x73;
Smg_show[2]=0x00;
Smg_show[3]=0x00;
Smg_show[4]=0x00;
Smg_show[5]=0x00;
if(flag_set==0)
{
Smg_show[1]=Smg_code[1];
Smg_show[6]=Smg_code[set_time[local_time]/10];
Smg_show[7]=Smg_code[set_time[local_time]%10];
}
else if(flag_set==1)
{
Smg_show[1]=Smg_code[2];
Smg_show[6]=Smg_code[set_length/10];
Smg_show[7]=Smg_code[set_length%10];
}
}
}
void main()
{
Device_Init();
Timer2Init();
Set_time(20,20,01);
while(1)
{
Key_process();
Smg_process();
sonic_process();
ds1302_process();
adc_process();
}
}
//-----------------------------------------------
//中断服务程序
void Timer_int() interrupt 12 //中断入口
{
time_key++;
time_sonic++;
ds1302_time++;
time_adc++;
LED_process();
Smg_display();
}Device.c
#include "Device.h"
void Device_Ctri(u8 p2data,u8 p0date)
{
P0=p0date;
P2=P2&0X1F|p2data;
P2&=0X1F;
}
void Device_Init()
{
Device_Ctri(0x80,0xff);
Device_Ctri(0xa0,0x00);
}Timer.c
#include "Timer.h"
void Timer2Init(void) //1毫秒@12.000MHz
{
AUXR &= 0xFB; //定时器时钟12T模式
T2L = 0x18; //设置定时初始值
T2H = 0xFC; //设置定时初始值
AUXR |= 0x10; //定时器2开始计时
IE2 |= 0x04; //开定时器2中断
EA = 1;
}
Smg.c
#include "Smg.h"
u8 code T_COM[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
u8 Smg_code[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71,0x00};
u8 Smg_show[8];
void Smg_display()
{
static u8 i=0;
Device_Ctri(0xc0,0x00);
Device_Ctri(0xe0,~Smg_show[i]);
Device_Ctri(0xc0,T_COM[i]);
i++;
i%=8;
}ds1302.c
#include "Key.h"
u8 Key_Scan()
{
u8 key_io=0xff;
P3=0XF0;P4=0XFF;
if(P44==0)
key_io=0x70;
if(P42==0)
key_io=0xb0;
P3=0X0F;P4=0X00;
if(P33==0)
key_io|=0x07;
if(P32==0)
key_io|=0x0b;
return key_io;
}
u8 trg,con;
void Key_Scan3()
{
u8 date=Key_Scan()^0xff;
trg=date&(date^con);
con=date;
}Sonic.c
#include "Sonic.h"
void Delay12us() //@12.000MHz
{
unsigned char i;
_nop_();
_nop_();
i = 33;
while (--i);
}
void Sent_wave()
{
u8 n=0;
for(n=0;n<8;n++)
{
P10=1;
Delay12us();
P10=0;
Delay12us();
}
}
u16 Sonic_receive()
{
u16 temp=0;
Sent_wave();
TH1=0;TL1=0;
TR1=1;
while((P11==1)&&(TF1==0));
TF1=0;
TR1=0;
temp=((TH1<<8)|TL1)*0.017;
return temp;
}iic.c
/*
程序说明: IIC总线驱动程序
软件环境: Keil uVision 4.10
硬件环境: CT107单片机综合实训平台 8051，12MHz
日 期: 2011-8-9
*/
#include "iic.h"
#define DELAY_TIME 5
#define SlaveAddrW 0xA0
#define SlaveAddrR 0xA1
//总线引脚定义
sbit SDA = P2^1; /* 数据线 */
sbit SCL = P2^0; /* 时钟线 */
void IIC_Delay(unsigned char i)
{
do{_nop_();}
while(i--);
}
//总线启动条件
void IIC_Start(void)
{
SDA = 1;
SCL = 1;
IIC_Delay(DELAY_TIME);
SDA = 0;
IIC_Delay(DELAY_TIME);
SCL = 0;
}
//总线停止条件
void IIC_Stop(void)
{
SDA = 0;
SCL = 1;
IIC_Delay(DELAY_TIME);
SDA = 1;
IIC_Delay(DELAY_TIME);
}
//发送应答
void IIC_SendAck(bit ackbit)
{
SCL = 0;
SDA = ackbit; // 0：应答，1：非应答
IIC_Delay(DELAY_TIME);
SCL = 1;
IIC_Delay(DELAY_TIME);
SCL = 0;
SDA = 1;
IIC_Delay(DELAY_TIME);
}
//等待应答
bit IIC_WaitAck(void)
{
bit ackbit;
SCL = 1;
IIC_Delay(DELAY_TIME);
ackbit = SDA;
SCL = 0;
IIC_Delay(DELAY_TIME);
return ackbit;
}
//通过I2C总线发送数据
void IIC_SendByte(unsigned char byt)
{
unsigned char i;
for(i=0; i<8; i++)
{
SCL = 0;
IIC_Delay(DELAY_TIME);
if(byt & 0x80) SDA = 1;
else SDA = 0;
IIC_Delay(DELAY_TIME);
SCL = 1;
byt <<= 1;
IIC_Delay(DELAY_TIME);
}
SCL = 0;
}
//从I2C总线上接收数据
unsigned char IIC_RecByte(void)
{
unsigned char i, da;
for(i=0; i<8; i++)
{
SCL = 1;
IIC_Delay(DELAY_TIME);
da <<= 1;
if(SDA) da |= 1;
SCL = 0;
IIC_Delay(DELAY_TIME);
}
return da;
}
u8 Read_adc()
{
u8 temp=0;
IIC_Start();
IIC_SendByte(0x90);
IIC_WaitAck();
IIC_SendByte(0x41);
IIC_WaitAck();
IIC_Start();
IIC_SendByte(0x91);
IIC_WaitAck();
temp=IIC_RecByte();
IIC_SendAck(1);
IIC_Stop();
return temp;
}
void write_adc(u8 date)
{
IIC_Start();
IIC_SendByte(0x90);
IIC_WaitAck();
IIC_SendByte(0x40);
IIC_WaitAck();
IIC_Start();
IIC_SendByte(0x90);
IIC_WaitAck();
IIC_SendByte(date);
IIC_WaitAck();
IIC_Stop();
}