第九届蓝桥杯国赛
main.c
#include "main.h"
unsigned char tab[27]={0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90,0XC0&0X7F,0XF9&0X7F,0XA4&0X7F,0XB0&0X7F,0X99&0X7F,0X92&0X7F,0X82&0X7F,0XF8&0X7F,0X80&0X7F,0X90&0X7F,0XBF,0XFF,0XC1,0X8E,0X89,0XC6,0X8C};
unsigned char dsbuff[8]={21,21,21,21,21,21,21,21};
unsigned char com;
unsigned int temperature,dianya,pinlv;
int temperature_history[2],dianya_history,pinlv_history[3];
unsigned int temperature_value,dianya_value,pinlv_value;
unsigned int dianya_para;
bit led1,led2,led3,led8;
int led8_count;
unsigned int ne555_count,t1_count;
bit ne555_flag;
unsigned char key4;//0-温度 1-电压 2-频率
bit key5,key6,key7;//key5-存储 key6-回显/ key7-设置
bit down;
unsigned int down_count,up_time,down_time;
bit display_flag ;
int display_count;
void main(void)
{
EA=1;
all_init();
// eeprom_init(6);
Timer0Init();
Timer1Init();
// Timer2Init();
//读参数
eeprom_read(2,temperature_history,0x10);
dianya_history = iic_read(0x12);Delay2ms();
eeprom_read(3,pinlv_history,0x13);
while(1)
{
Key_Individual();
if(display_flag == 1)
{
display_flag = 0;
dianya = pcf8951_adc(0x03)/5.1;
temperature = temp1_get();
}
ne555();
if(display_flag == 1)
{
if(key7 == 1)//电压参数显示
{
smg_display(26,21,21,21,21,21,dianya_para/10%10+10,dianya_para/1%10);
}else if(key7 == 0)
{
if(key6 == 1)//回显数据
{
history_display();
}else if(key6 == 0)//实时数据
{
data_display();
}
}
}
}
}
void ne555(void)
{
if(ne555_flag)
{
ne555_flag = 0;
pinlv = ne555_count*10;
ne555_count = 0;
ET0 = 1;
TR0 = 1;
}
}
void eeprom_init(int num)
{
int i;
for(i=0;i 99999)
{
dsbuff[2]= pinlv/100000%10;
}else
{
dsbuff[2]= 21;
}
if(pinlv > 9999)
{
dsbuff[3]= pinlv/10000%10;
}else{
dsbuff[3]= 21;
}
if(pinlv > 999)
{
dsbuff[4]= pinlv/1000%10;
}else
{
dsbuff[4]= 21;
}
if(pinlv > 99)
{
dsbuff[5]= pinlv/100%10;
}else
{
dsbuff[5]= 21;
}
dsbuff[6]= pinlv/10%10;
dsbuff[7]= pinlv/1%10;
}
void history_display(void)
{
if(key4 == 0)//温度
{
eeprom_read(2,temperature_history,0x10);
temperature_value = temperature_history[0]*100+temperature_history[1];
smg_display(24,25,21,21,temperature_value/1000%10,temperature_value/100%10+10,temperature_value/10%10,temperature_value/1%10);
}else if(key4 == 1)//电压
{
dianya_history = iic_read(0x12);Delay2ms();
smg_display(24,22,21,21,21,21,dianya_history/10%10+10,dianya_history/1%10);
}else if(key4 == 2)//频率
{
eeprom_read(3,pinlv_history,0x13);
pinlv_value = pinlv_history[0]*10000+pinlv_history[1]*100+pinlv_history[2];
pinlv_history_display();
}
}
void pinlv_history_display(void)
{
dsbuff[0]= 24;
dsbuff[1]= 23;
if(pinlv_value > 99999)
{
dsbuff[2]= pinlv_value/100000%10;
}else
{
dsbuff[2]= 21;
}
if(pinlv_value > 9999)
{
dsbuff[3]= pinlv_value/10000%10;
}else{
dsbuff[3]= 21;
}
if(pinlv_value > 999)
{
dsbuff[4]= pinlv_value/1000%10;
}else
{
dsbuff[4]= 21;
}
if(pinlv_value > 99)
{
dsbuff[5]= pinlv_value/100%10;
}else
{
dsbuff[5]= 21;
}
dsbuff[6]= pinlv_value/10%10;
dsbuff[7]= pinlv_value/1%10;
}
void led_one(unsigned char dat)//单个LED操作
{
P0 = dat;
P2 = ((P2&0X1F)|0X80);
P2 &= 0X1F;
}
void led_option(void)
{
if(key4 == 0)
{
led1 = 1;led2 = 0;led3 = 0;
}else if(key4 == 1)
{
led1 = 0;led2 = 1;led3 = 0;
}else if(key4 == 2)
{
led1 = 0;led2 = 0;led3 = 1;
}
if(led1&&led2&&led3&&led8)//1111
{
led_one(0X78);
}else if(led1&&led2&&led3&&!led8)//1110
{
led_one(0XF8);
}else if(led1&&led2&&!led3&&led8)//1101
{
led_one(0X7C);
}else if(led1&&led2&&!led3&&!led8)//1100
{
led_one(0XFC);
}else if(led1&&!led2&&led3&&led8)//1011
{
led_one(0X7A);
}else if(led1&&!led2&&led3&&!led8)//1010
{
led_one(0XFA);
}else if(led1&&!led2&&!led3&&led8)//1001
{
led_one(0X7E);
}else if(led1&&!led2&&!led3&&!led8)//1000
{
led_one(0XFE);
}else if(!led1&&led2&&led3&&led8)//0111
{
led_one(0X79);
}else if(!led1&&led2&&led3&&!led8)//0110
{
led_one(0XF9);
}else if(!led1&&led2&&!led3&&led8)//0101
{
led_one(0X7D);
}else if(!led1&&led2&&!led3&&!led8)//0100
{
led_one(0XFD);
} else if(!led1&&!led2&&led3&&led8)//0011
{
led_one(0X7B);
}else if(!led1&&!led2&&led3&&!led8)//0010
{
led_one(0XFB);
}else if(!led1&&!led2&&!led3&&led8)//0001
{
led_one(0X7F);
}else if(!led1&&!led2&&!led3&&!led8)//0000
{
led_one(0XFF);
}
}
//全部初始化
void all_init(void)
{
P2 &= 0X1F;
P0 = 0XFF;
P2 = ((P2&0X1F)|0X80);
P2 &= 0X1F;
P0 = 0X00;
P2 = ((P2&0X1F)|0XA0);
P2 &= 0X1F;
P0 = 0XFF;
P2 = ((P2&0X1F)|0XE0);
P2 &= 0X1F;
}
//数码管显示
void display(void)
{
P0 = 0XFF;
P2 = ((P2&0X1F)|0XE0);
P2 &= 0X1F;
P0 = 0X01 << com;
P2 =( (P2&0X1F)|0XC0);
P2 &= 0X1F;
P0 = tab[dsbuff[com]];
P2 = ((P2&0X1F)|0XE0);
P2 &= 0X1F;
if(++com >= 8)
com = 0;
}
//独立按键扫描
void Key_Individual(void)
{
P3 |= 0x0F;
if(P3_LOW4 != 0x0F)
{
Delay2ms();
if(P3_LOW4 != 0x0F)
{
switch(P3_LOW4)
{
case 0x0E://S7
key7 = ~key7;
while(P3_LOW4 == 0x0E);
break;
case 0x0D://S6
down = 1;
down_time = down_count;
while(P3_LOW4 == 0x0D);
down = 0;
up_time = down_count;
if(up_time - down_time >= 400)//长按800ms
{
if(key7 == 1)//1-设置
{
dianya_para += 10;
if(dianya_para > 50)
{
dianya_para = 0;
}
}
}else //短按
{
if(key7 == 1)//1-设置
{
if(++dianya_para > 50)
{
dianya_para = 0;
}
}else if(key7 == 0)//0-非设置
{
key6 = ~key6;
}
}
down_count = 0;
break;
case 0x0B://S5
iic_write(0x10,temperature/100);Delay2ms();
iic_write(0x11,temperature%100);Delay2ms();
iic_write(0x12,dianya);Delay2ms();
iic_write(0x13,pinlv/10000);Delay2ms();
iic_write(0x14,pinlv/100%100);Delay2ms();
iic_write(0x15,pinlv%100);Delay2ms();
while(P3_LOW4 == 0x0B);
break;
case 0x07://S4
if(++key4 > 2)
{
key4 = 0;
}
while(P3_LOW4 == 0x07);
break;
}
}
}
}
//定时器0初始化
void Timer0Init(void) //计数模式
{
AUXR |= 0x80; //定时器时钟1T模式
TMOD |= 0x04; //设置定时器模式
TL0 = 0xFF; //设置定时初值
TH0 = 0xFF; //设置定时初值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0开始计时
ET0=1;
}
//定时器0中断服务函数
void timer0_isr() interrupt 1
{
ne555_count++;
}
void Timer1Init(void) //2毫秒@11.0592MHz
{
AUXR |= 0x40; //定时器时钟1T模式
TMOD &= 0x0F; //设置定时器模式
TL1 = 0x9A; //设置定时初值
TH1 = 0xA9; //设置定时初值
TF1 = 0; //清除TF1标志
TR1 = 1; //定时器1开始计时
ET1 = 1;
}
void timer1_isr() interrupt 3
{
display();
led_option();
if(++display_count >= 30)
{
display_count = 0;
display_flag = 1;
}
if(++t1_count >= 50)
{
t1_count = 0;
ET0 = 0;
TR0 = 0;
ne555_flag = 1;
}
if(dianya > dianya_para)
{
if(++led8_count >= 100)
{
led8_count = 0;
led8 = ~led8;
}
}else if(dianya <= dianya_para)
{
led8 = 0;
}
if(down == 1)
{
down_count++;
}
}
void Delay2ms() //@11.0592MHz
{
unsigned char i, j;
_nop_();
_nop_();
i = 22;
j = 128;
do
{
while (--j);
} while (--i);
}
//551 main.h
#ifndef _MAIN_H
#define _MAIN_H
#include "STC15F2K60S2.h"
#include "iic.h"
#include "onewire.h"
#define P3_LOW4 (P3&0x0F)
void all_init(void);//全部初始化
void display(void);//数码管显示
void Key_Individual(void);//独立按键扫描
void Timer0Init(void); //2毫秒@11.0592MHz
void Timer1Init(void); //2微秒@11.0592MHz
void Timer2Init(void); //10毫秒@11.0592MHz
void Delay2ms(); //@11.0592MHz
void led_option(void);
void data_display(void);
void pinlv_display(void);
void history_display(void);
void pinlv_history_display(void);
void eeprom_init(int num);
void ne555(void);
void eeprom_read(int num,int *value,int addr);
void smg_display(int s1,int s2,int s3,int s4,int s5,int s6,int s7,int s8);
void led_one(unsigned char dat);//单个LED操作
#endifiic.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(12MHz)
日 期: 2011-8-9
*/
#include "iic.h"
//总线启动条件
void IIC_Start(void)
{
SDA = 1;
SCL = 1;
somenop;
SDA = 0;
somenop;
SCL = 0;
}
//总线停止条件
void IIC_Stop(void)
{
SDA = 0;
SCL = 1;
somenop;
SDA = 1;
}
//应答位控制
void IIC_Ack(unsigned char ackbit)
{
if(ackbit)
{
SDA = 0;
}
else
{
SDA = 1;
}
somenop;
SCL = 1;
somenop;
SCL = 0;
SDA = 1;
somenop;
}
//等待应答
bit IIC_WaitAck(void)
{
SDA = 1;
somenop;
SCL = 1;
somenop;
if(SDA)
{
SCL = 0;
IIC_Stop();
return 0;
}
else
{
SCL = 0;
return 1;
}
}
//通过I2C总线发送数据
void IIC_SendByte(unsigned char byt)
{
unsigned char i;
for(i=0;i<8;i++)
{
if(byt&0x80)
{
SDA = 1;
}
else
{
SDA = 0;
}
somenop;
SCL = 1;
byt <<= 1;
somenop;
SCL = 0;
}
}
//从I2C总线上接收数据
unsigned char IIC_RecByte(void)
{
unsigned char da;
unsigned char i;
for(i=0;i<8;i++)
{
SCL = 1;
somenop;
da <<= 1;
if(SDA)
da |= 0x01;
SCL = 0;
somenop;
}
return da;
}
void iic_write(unsigned char addr,unsigned char dat)
{
IIC_Start();
IIC_SendByte(0XA0);
IIC_WaitAck();
IIC_SendByte(addr);
IIC_WaitAck();
IIC_SendByte(dat);
IIC_WaitAck();
IIC_Stop();
}
unsigned char iic_read(unsigned char addr)
{
unsigned char temp;
IIC_Start();
IIC_SendByte(0XA0);
IIC_WaitAck();
IIC_SendByte(addr);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
IIC_SendByte(0XA1);
IIC_WaitAck();
temp = IIC_RecByte();
IIC_WaitAck();
IIC_Stop();
return temp;
}
unsigned char pcf8951_adc(unsigned char addr)
{
unsigned char temp;
IIC_Start();
IIC_SendByte(0X90);
IIC_WaitAck();
IIC_SendByte(addr);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
IIC_SendByte(0X91);
IIC_WaitAck();
temp = IIC_RecByte();
IIC_Ack(0);
IIC_Stop();
return temp;
}
iic.h
#ifndef _IIC_H
#define _IIC_H
#include "STC15F2K60S2.h"
#include "intrins.h"
#define somenop {_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();}
#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 */
//函数声明
void IIC_Start(void);
void IIC_Stop(void);
void IIC_Ack(unsigned char ackbit);
void IIC_SendByte(unsigned char byt);
bit IIC_WaitAck(void);
unsigned char IIC_RecByte(void);
void iic_write(unsigned char addr,unsigned char dat);//eeprom写操作
unsigned char iic_read(unsigned char addr);//eeprom读操作
void pcf8951_dac(unsigned char dat);//pcf8951_dac输出
unsigned char pcf8951_adc(unsigned char addr);//pcf8951_adc采集
#endifonewire.c
/*
程序说明: 单总线驱动程序
软件环境: Keil uVision 4.10
硬件环境: CT107单片机综合实训平台
日 期: 2011-8-9
*/
#include "onewire.h"
//单总线延时函数
void Delay_OneWire(unsigned int t)
{
int i;
while(t--)for(i=0;i<8;i++);
}
//DS18B20芯片初始化
bit Init_DS18B20(void)
{
bit initflag = 0;
DQ = 1;
Delay_OneWire(12);
DQ = 0;
Delay_OneWire(80);
DQ = 1;
Delay_OneWire(10);
initflag = DQ;
Delay_OneWire(5);
return initflag;
}
//通过单总线向DS18B20写一个字节
void Write_DS18B20(unsigned char dat)
{
unsigned char i;
for(i=0;i<8;i++)
{
DQ = 0;
DQ = dat&0x01;
Delay_OneWire(5);
DQ = 1;
dat >>= 1;
}
Delay_OneWire(5);
}
//从DS18B20读取一个字节
unsigned char Read_DS18B20(void)
{
unsigned char i;
unsigned char dat;
for(i=0;i<8;i++)
{
DQ = 0;
dat >>= 1;
DQ = 1;
if(DQ)
{
dat |= 0x80;
}
Delay_OneWire(5);
}
return dat;
}
//一位小数
unsigned int temp1_get(void)
{
unsigned int high,low,temp;
Init_DS18B20();
Write_DS18B20(0xcc);
Delay_OneWire(200);
Write_DS18B20(0x44);
Delay_OneWire(200);
Init_DS18B20();
Write_DS18B20(0xcc);
Delay_OneWire(200);
Write_DS18B20(0xBE);
low = Read_DS18B20();
high = Read_DS18B20();
temp = high << 8;
temp |= low;
// temp = temp*(0.625);//一位小数
temp = temp*(6.25);//两位小数
return temp;
}iic.h
#ifndef _ONEWIRE_H
#define _ONEWIRE_H
#include "STC15F2K60S2.h"
#define OW_SKIP_ROM 0xcc
#define DS18B20_CONVERT 0x44
#define DS18B20_READ 0xbe
//IC引脚定义
sbit DQ = P1^4;
//函数声明
void Delay_OneWire(unsigned int t);
void Write_DS18B20(unsigned char dat);
bit Init_DS18B20(void);
unsigned char Read_DS18B20(void);
unsigned char temp_get(void);
unsigned int temp1_get(void);
#endif