蓝桥杯单片机学习过程记录（二十三）第五届国赛多功能事件记录器
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2022-03-13 17:18:35
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蓝桥杯单片机学习过程记录（二十三）第五届国赛多功能事件记录器
这套题基本涵盖了所有的基础知识点，串口通信部分没写，也不算是没写，就写了一点点字符串读取，具体原理还不懂，eeprom部分可以简化
用到的内容：
独立按键、小灯
数码管、定时器
IIC读取RB2和光敏电阻
EEPROM的写入读取
温度传感器DS18B20
时钟芯片DS1302
/*
-----------------------------------
第五届国赛多功能事件记录器
2020.3.2
串口部分未完成
其余部分完成EEPROM部分自动存储完成
问题：
IIC通信中rb2和光敏电阻的获取是反的，03得到了光敏电阻，01得到了rb2阻值
-----------------------------------
*/
#include<STC15F2K60S2.H>
#include<ds1302.h>
#include<onewire.h>
#include<iic.h>
sbit s5=P3^2;
sbit s4=P3^3;
sbit led1=P0^0;
sbit led2=P0^1;
sbit led3=P0^2;
sbit led4=P0^3;
int shidu;
bit jiange;
unsigned char eep[5][6];
unsigned char time0_t,close_t,close_temp,read_temp,eep_count;
unsigned char flag_yemian,flag_mode,flag_close;
unsigned char time_init[]={55,59,23,0,0,0,0};
unsigned char time_read[7];
unsigned char wendu,dianya,urdat,gm,eep_temp;
unsigned char seg[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff,0xc6,0x89};
unsigned char yi,er,san,si,wu,liu,qi,ba;
void delayms(int ms);
void allinit();
void display_12(yi,er);
void display_34(san,si);
void display_56(wu,liu);
void display_78(qi,ba);
void DS1302_READ();
void DS1302_INIT();
unsigned char onewire_read();
unsigned char iic_rb2(unsigned char add);
void Timer0Init(void);
void uart_init();
void sendstring(unsigned char *str);
void uart_working();
void key_scan();
unsigned char eeprom_read(unsigned char add);
void eeprom_write(unsigned char add,unsigned char dat);
void eep_input();
//void eep_output();
void main(){
allinit();
DS1302_INIT();
uart_init();
Timer0Init(); EA=1;ET0=1;ES=1;
yi=10;er=10;san=10;si=10;wu=10;liu=10;qi=10;ba=10;
sendstring("hello\r\n");
close_temp=iic_rb2(0x03);
while(1){
//eep_output();
uart_working();
DS1302_READ();
wendu=onewire_read();
gm=iic_rb2(0x03);
//对靠近物体进行判断
if(gm<(close_temp-10)){
flag_close=1;
P2=0X80;led3=0;
}
else if(gm>(close_temp-10)){
if(flag_close==1){
read_temp=close_t;
if(flag_mode==1){
//eep保存
eep_input();
eep_count++;
if(eep_count==5)eep_count=0;
}
}
flag_close=0;
close_t=0;
P2=0X80;led3=1;
}
dianya=iic_rb2(0x01);
shidu=3.92*dianya;
//界面一温度湿度
if(flag_yemian==0){
yi=wendu/10;er=wendu%10;san=12;si=eep_temp/10;wu=eep_temp%10;liu=shidu/100;qi=shidu%100/10;ba=13;
}
//界面二时钟显示
else if(flag_yemian==1){
if(jiange==0){
yi=time_read[2]/10;er=time_read[2]%10;san=10;si=time_read[1]/10;wu=time_read[1]%10;liu=10;qi=time_read[0]/10;ba=time_read[0]%10;
}
else if(jiange==1){
yi=time_read[2]/10;er=time_read[2]%10;san=11;si=time_read[1]/10;wu=time_read[1]%10;liu=11;qi=time_read[0]/10;ba=time_read[0]%10;
}
}
//界面三靠近物体时间显示
else if(flag_yemian==2){
yi=11;er=11;san=11;si=10;wu=close_t/1000;liu=read_temp%1000/100;qi=read_temp%100/10;ba=read_temp%10;
}
//自动传输模式
if(flag_mode==0){
P2=0X80;led1=0;led2=1;
}
//自动记录模式
else if(flag_mode==1){
P2=0X80;led2=0;led1=1;
}
//按键
key_scan();
//数码管
display_12(yi,er);
display_34(san,si);
display_56(wu,liu);
display_78(qi,ba);
}
}
//按键
void key_scan(){
//模式转换
if(s4==0){
delayms(5);
if(s4==0){
flag_mode++;
if(flag_mode==2)
flag_mode=0;
}
while(!s4);
}
//界面切换
else if(s5==0){
delayms(5);
if(s5==0){
flag_yemian++;
if(flag_yemian==3)
flag_yemian=0;
}
while(!s5);
}
}
//eep函数写入
void eep_input(){
if(eep_count==0){
eeprom_write(0x01,wendu);eeprom_write(0x02,shidu);eeprom_write(0x03,time_read[2]);
eeprom_write(0x04,time_read[1]);delayms(5);eeprom_write(0x05,time_read[0]);delayms(5);eeprom_write(0x06,read_temp);delayms(5);}
else if(eep_count==1){
eeprom_write(0x11,wendu);eeprom_write(0x12,shidu);eeprom_write(0x13,time_read[2]);
eeprom_write(0x14,time_read[1]);delayms(5);eeprom_write(0x15,time_read[0]);delayms(5);eeprom_write(0x16,read_temp);delayms(5);}
else if(eep_count==2){
eeprom_write(0x21,wendu);eeprom_write(0x22,shidu);eeprom_write(0x23,time_read[2]);
eeprom_write(0x24,time_read[1]);delayms(5);eeprom_write(0x25,time_read[0]);delayms(5);eeprom_write(0x26,read_temp);delayms(5);}
else if(eep_count==3){
eeprom_write(0x31,wendu);eeprom_write(0x32,shidu);eeprom_write(0x33,time_read[2]);
eeprom_write(0x34,time_read[1]);delayms(5);eeprom_write(0x35,time_read[0]);delayms(5);eeprom_write(0x36,read_temp);delayms(5);}
else if(eep_count==4){
eeprom_write(0x41,wendu);eeprom_write(0x42,shidu);eeprom_write(0x43,time_read[2]);
eeprom_write(0x44,time_read[1]);delayms(5);eeprom_write(0x45,time_read[0]);delayms(5);eeprom_write(0x46,read_temp);delayms(5);}
}
//eep函数读取
//void eep_output(){
// eep[0][0]=eeprom_read(0x01);eep[0][1]=eeprom_read(0x02);eep[0][2]=eeprom_read(0x03);eep[0][3]=eeprom_read(0x04);
// eep[0][4]=eeprom_read(0x05);eep[0][5]=eeprom_read(0x06);
// eep[1][0]=eeprom_read(0x11);eep[1][1]=eeprom_read(0x12);eep[0][2]=eeprom_read(0x13);eep[1][3]=eeprom_read(0x14);
// eep[1][4]=eeprom_read(0x15);eep[1][5]=eeprom_read(0x16);
// eep[2][0]=eeprom_read(0x21);eep[2][1]=eeprom_read(0x22);eep[2][2]=eeprom_read(0x23);eep[2][3]=eeprom_read(0x24);
// eep[2][4]=eeprom_read(0x25);eep[2][5]=eeprom_read(0x26);
// eep[3][0]=eeprom_read(0x31);eep[3][1]=eeprom_read(0x32);eep[3][2]=eeprom_read(0x33);eep[3][3]=eeprom_read(0x34);
// eep[3][4]=eeprom_read(0x35);eep[3][5]=eeprom_read(0x36);
// eep[4][0]=eeprom_read(0x41);eep[4][1]=eeprom_read(0x42);eep[4][2]=eeprom_read(0x43);eep[4][3]=eeprom_read(0x44);
// eep[4][4]=eeprom_read(0x45);eep[4][5]=eeprom_read(0x46);
//}
//eep读取
unsigned char eeprom_read(unsigned char add){
unsigned char temp;
IIC_Start();
IIC_SendByte(0xa0);
IIC_WaitAck();
IIC_SendByte(add);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
IIC_SendByte(0xa1);
IIC_WaitAck();
temp=IIC_RecByte();
IIC_Stop();
return temp;
}
//eep写入
void eeprom_write(unsigned char add,unsigned char dat){
IIC_Start();
IIC_SendByte(0xa0);
IIC_WaitAck();
IIC_SendByte(add);
IIC_WaitAck();
IIC_SendByte(dat);
IIC_WaitAck();
IIC_Stop();
}
//uart初始化
void uart_init(){
TMOD=0X20;
AUXR&=0x40;
TH1=0XFD;TL1=0XFD;
TR1=1;SCON=0X50;
}
void uart_time1() interrupt 4{
if(RI==1){
RI=0;
urdat=SBUF;
}
}
//接收字符工作
void uart_working(){
if(urdat!=0){
switch(urdat){
case 0x0A:sendstring("love\r\n");urdat=0;break;
}
}
}
//发送字符
void sendbyte(unsigned char dat){
SBUF=dat;
while(TI==0);
TI=0;
}
//发送字串
void sendstring(unsigned char *str){
while(*str !='\0'){
sendbyte(*str++);
}
}
//定时器0控制间隔符闪烁
void time0() interrupt 1{
time0_t++;
if(flag_yemian==1){
if(time0_t==100){
jiange=1;
}
else if(time0_t>200){
jiange=0;
time0_t=0;
}
}
else {
if(time0_t==200){
if(flag_close==1)
close_t++;
time0_t=0;
}
}
}
//定时器0初始化
void Timer0Init(void)
{
AUXR |= 0x80;
TMOD &= 0xF0;
TL0 = 0x00;
TH0 = 0x28;
TF0 = 0;
TR0 = 1;
}
//RB2电压获取
unsigned char iic_rb2(unsigned char add){
unsigned char temp;
IIC_Start();
IIC_SendByte(0x90);
IIC_WaitAck();
IIC_SendByte(add);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
IIC_SendByte(0x91);
IIC_WaitAck();
temp=IIC_RecByte();
IIC_Stop();
return temp;
}
//温度获取
unsigned char onewire_read(){
unsigned char temp,high,low;
init_ds18b20();
Write_DS18B20(0xcc);
Write_DS18B20(0x44);
delayms(1);
init_ds18b20();
Write_DS18B20(0xcc);
Write_DS18B20(0xbe);
low=Read_DS18B20();
high=Read_DS18B20();
init_ds18b20();
temp=high<<4;
temp=temp|(low>>4);
return temp;
}
//时钟初始化
void DS1302_INIT(){
unsigned char i,add=0x80;
Write_Ds1302_Byte(0x8e,0x00);
for(i=0;i<7;i++){
Write_Ds1302_Byte(add,time_init[i]);
add=add+2;
}
Write_Ds1302_Byte(add,0x80);
}
//时钟获取
void DS1302_READ(){
unsigned char i,add=0x81;
Write_Ds1302_Byte(0x8e,0x00);
for(i=0;i<7;i++){
time_read[i]=Read_Ds1302_Byte(add);
add=add+2;
}
Write_Ds1302_Byte(add,0x80);
}
//延时函数
void delayms(int ms){
int q,w;
for(q=0;q<ms;q++)
for(w=0;w<845;w++);
}
//初始化
void allinit(){
P2=0XA0;P0=0X00;
P2=0XC0;P0=0XFF;P2=0XE0;P0=0XFF;
P2=0X80;P0=0XFF;
}
//数码管
void display_12(yi,er){
P2=0XC0;P0=0X01;P2=0XE0;P0=seg[yi];delayms(1);
P2=0XC0;P0=0X02;P2=0XE0;P0=seg[er];delayms(1);
}
void display_34(san,si){
P2=0XC0;P0=0X04;P2=0XE0;P0=seg[san];delayms(1);
P2=0XC0;P0=0X08;P2=0XE0;P0=seg[si];delayms(1);
}
void display_56(wu,liu){
P2=0XC0;P0=0X10;P2=0XE0;P0=seg[wu];delayms(1);
P2=0XC0;P0=0X20;P2=0XE0;P0=seg[liu];delayms(1);
}
void display_78(qi,ba){
P2=0XC0;P0=0X40;P2=0XE0;P0=seg[qi];delayms(1);
P2=0XC0;P0=0X80;P2=0XE0;P0=seg[ba];delayms(1);
P2=0XC0;P0=0XFF;P2=0XE0;P0=0XFF;delayms(1);
}
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