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蓝桥杯单片机第七届决赛
2022-06-13 00:42:00 【昊月光华】
总觉得题目读的含糊不清,比如按下原key后完成装载，那就是修改后若是按别的key就不装载到epprom，总要考虑到一些错误的操纵方式。各种标记之类的清理和判断真磨人心态。总有一些精细化的控制需要调试，也许这就是高手的水平吧。
main
#include "sys.h"
u8 s=0;
u8 smgtime=0;
u8 keytime=0;
u16 ft=0;//闪烁时间
bit ff=0;//闪烁标志
u16 pl=0;//频率
u16 zq=0;//周期
u16 plt=0;//测量频率的时间
bit event=0;//0 低于 1超出
u16 adc=0;//测量的电压值
u16 adct=0;//读取ADC的时间间隔
u8 uic=0; //0 时钟正常显示 1 闪时 2 闪分 3 闪秒
//4电压测量 5 闪电压上 6 闪电压下
//7 频率测量显示 8周期显示 9 查询显示 10 显示事件时间
u16 rt=0;//读取时间间隔
bit modify=0;//修改时间标志
bit modify_v=0;//修改电压标志
u8 wi=0;//写入epprom计数
u8 wi2=0;
bit wt=0;//存事件时间标志
void ClearFlag(){
if(modify){
if(rkey!=7)modify=0;
}
if(modify_v==1){
if(rkey!=6)modify_v=0;
}
}
void SaveTimeTe(){//保存事件发生的时间
if(wt){
switch(wi2){
case 0:
Write_epprom(2,BTIME[0]);
break;
case 1:
Write_epprom(3,BTIME[1]);
break;
case 2:
Write_epprom(4,BTIME[2]);
case 3:
wi2=0;
wt=0;
break;
}
wi2++;
}
}
//保存电压上限和电压下限
void SaveToep(){
if(modify_v==2){
switch(wi){
case 0:
Write_epprom(0,ADLIM[0]/100);
wi++;
break;
case 1:
Write_epprom(1,ADLIM[1]/100);
wi++;
break;
case 2:
wi=0;
modify_v=0;
break;
}
}
}
void UISetting(){
if(smgtime>45){
smgtime=0;
SaveTimeTe();
if(!uic){
DT[0]=TIME[0]/10;
DT[1]=TIME[0]%10;
DT[2]=11;
DT[3]=TIME[1]/10;
DT[4]=TIME[1]%10;
DT[5]=11;
DT[6]=TIME[2]/10;
DT[7]=TIME[2]%10;
}
else if(uic==1){
DT[0]=ff?TIME[0]/10:10;
DT[1]=ff?TIME[0]%10:10;
DT[2]=11;
DT[3]=TIME[1]/10;
DT[4]=TIME[1]%10;
DT[5]=11;
DT[6]=TIME[2]/10;
DT[7]=TIME[2]%10;
}
else if(uic==2){
DT[0]=TIME[0]/10;
DT[1]=TIME[0]%10;
DT[2]=11;
DT[3]=ff?TIME[1]/10:10;
DT[4]=ff?TIME[1]%10:10;
DT[5]=11;
DT[6]=TIME[2]/10;
DT[7]=TIME[2]%10;
}
else if(uic==3){
DT[0]=TIME[0]/10;
DT[1]=TIME[0]%10;
DT[2]=11;
DT[3]=TIME[1]/10;
DT[4]=TIME[1]%10;
DT[5]=11;
DT[6]=ff?TIME[2]/10:10;
DT[7]=ff?TIME[2]%10:10;
}
else if(uic==4){
DT[0]=11;
DT[1]=1;
DT[2]=11;
DT[3]=10;
DT[4]=adc/1000;
DT[5]=adc/100%10;
DT[6]=adc/10%10;
DT[7]=adc%10;
}
else if(uic==5){
DT[0]=ff?ADLIM[0]/1000:10;
DT[1]=ff?ADLIM[0]/100%10:10;
DT[2]=ff?ADLIM[0]/10%10:10;
DT[3]=ff?ADLIM[0]%10:10;
DT[4]=ADLIM[1]/1000;
DT[5]=ADLIM[1]/100%10;
DT[6]=ADLIM[1]/10%10;
DT[7]=ADLIM[1]%10;
}
else if(uic==6){
DT[0]=ADLIM[0]/1000;
DT[1]=ADLIM[0]/100%10;
DT[2]=ADLIM[0]/10%10;
DT[3]=ADLIM[0]%10;
DT[4]=ff?ADLIM[1]/1000:10;
DT[5]=ff?ADLIM[1]/100%10:10;
DT[6]=ff?ADLIM[1]/10%10:10;
DT[7]=ff?ADLIM[1]%10:10;
}
else if(uic==7||uic==8){
DT[0]=11;
DT[1]=2;
DT[2]=11;
DT[3]=(uic==7?pl/10000%10:zq/10000%10);
DT[4]=(uic==7?pl/1000%10:zq/1000%10);
DT[5]=(uic==7?pl/100%10:zq/100%10);
DT[6]=(uic==7?pl/10%10:zq/10%10);
DT[7]=(uic==7?pl%10:zq%10);
}
else if(uic==9){
DT[0]=10;
DT[1]=10;
DT[2]=10;
DT[3]=10;
DT[4]=10;
DT[5]=10;
DT[6]=0;
DT[7]=event?1:0;
}
else if(uic==10){
DT[0]=BTIME[0]/10;
DT[1]=BTIME[0]%10;
DT[2]=11;
DT[3]=BTIME[1]/10;
DT[4]=BTIME[1]%10;
DT[5]=11;
DT[6]=BTIME[2]/10;
DT[7]=BTIME[2]%10;
}
}
}
void KeyConsole(){
if(keytime>12){
keytime=0;
key_scan();
if(rkey){
ClearFlag();
switch(rkey){
case 7://时钟
uic=0;
if(modify){
modify=0;
WriteTime();
}
break;
case 6://电压
uic=4;
if(modify_v==1)modify_v=2;
break;
case 5://频率
uic=7;
break;
case 4://选择
if(uic<4){
if(uic==3)uic=1;
else{
uic=++uic%4;
}
}
else if(4<=uic&&uic<7){
if(uic==6)uic=5;
else {
uic=++uic%7;
}
}
else if(uic==7||uic==8){
uic=(uic==7?8:7);
}
else if(uic==9||uic==10){
uic=(uic==9?10:9);
}
break;
case 9://查询
uic=9;
break;
case 11://加
if(uic==1||uic==2||uic==3){
modify=1;
if(uic==1) TIME[uic-1]=++TIME[uic-1]%24;
else if(uic==2||uic==3)TIME[uic-1]=++TIME[uic-1]%60;
}
else if(uic==5||uic==6){
ADLIM[uic==5?0:1]+=500;
modify_v=1;
}
break;
case 10://减
if(uic==1||uic==2||uic==3){
if(!TIME[uic-1])break;
TIME[uic-1]--;
modify=1;
}
else if(uic==5||uic==6){
if(!ADLIM[uic==5?0:1])break;
ADLIM[uic==5?0:1]-=500;
modify_v=1;
}
break;
}
}
SaveToep();
}
}
void main(){
sys_init();
Timer1Init();
WriteTime();
Timer0Init();
while(1){
KeyConsole();
UISetting();
if(rt>1000){
rt=0;
if(uic!=1&&uic!=2&&uic!=3)
ReadTime();
}
if(adct>450){
adct=0;
adc= 5000/255* Read_adc(0x03);
if(adc>ADLIM[0]||adc<ADLIM[1]){
event=adc>ADLIM[0]?1:0;
BTIME[0]=TIME[0];
BTIME[1]=TIME[1];
BTIME[2]=TIME[2];
wt=1;
wi2=0;
}
}
}
}
void TIME1() interrupt 3{
smg_play(DT[s],s++);
if(s>7)s=0;
smgtime++;keytime++;
rt++;
adct++;
if(uic==1||uic==2||uic==3||uic==5||uic==6){
if(ft++==1000){
ff=~ff;
ft=0;
}
}
else
ft=0;
if(plt==0){
TR0=1;
plt++;
}
else if(plt++==500){
plt=0;
TR0=0;
pl=TH0<<8|TL0;
pl<<=1;
TH0=TL0=0;
zq=1000000/pl;
}
}sys.c
#include "sys.h"
u8 code SMGINDEX[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff
,0xbf // -
};
u8 DT[]={10,10,10,10,10,10,10,10};
u8 key_state=0;
u8 rkey=0;
u8 key_v=0;
u8 xdata TIME[]={23,59,50};
u8 xdata BTIME[]={0,0,0};
u16 xdata ADLIM[]={0,0};
void Delay5ms() //@12.000MHz
{
unsigned char i, j;
i = 59;
j = 90;
do
{
while (--j);
} while (--i);
}
//系统初始化并epprom初始化
void sys_init(){
u8 temp1;
u8 temp2;
P0=0xff;
lock(7);
P0=0;
lock(6);
P0=0;
lock(5);
P0=0xff;
lock(4);
temp1= Read_epprom(0x10);
Delay5ms();
temp2= Read_epprom(0x11);
Delay5ms();
if( temp1!=9&&temp2!=9){//255*255
Write_epprom(0x10,9);
Delay5ms();
Write_epprom(0x11,9);
Delay5ms();
Write_epprom(0,20);
Delay5ms();
Write_epprom(1,10);
Delay5ms();
ADLIM[0]= Read_epprom(0)*100;
Delay5ms();
ADLIM[1]= Read_epprom(1)*100;
Delay5ms();
}
else {
ADLIM[0]= Read_epprom(0)*100;
Delay5ms();
ADLIM[1]= Read_epprom(1)*100;
Delay5ms();
BTIME[0]= Read_epprom(2);
Delay5ms();
BTIME[1]= Read_epprom(3);
Delay5ms();
BTIME[2]= Read_epprom(4);
Delay5ms();
}
}
void smg_play(u8 du,u8 we){
P0=0xff;
lock(7);
P0=0;
P0=1<<we;
lock(6);
P0=0xff;
P0=SMGINDEX[du];
lock(7);
}
void key_scan(){
switch(key_state){
case 0:
key_v=0;
P3=P3|0x0f;
P42=0;
P44=0;
if((P3&0x0f)!=0x0f)key_state=1;
break;
case 1:
P3=P3|0x0f;
P42=0;
P44=0;
if((P3&0x0f)!=0x0f){
key_state=2;
if(!P30)key_v=7;
else if(!P31)key_v=6;
else if(!P32)key_v=5;
else if(!P33)key_v=4;
P3&=0xf0;
P42=1;
P44=1;
if(!P42)key_v+=4;
rkey=key_v;
}
else
key_state=0;
break;
case 2:
rkey=0;
P3=P3|0x0f;
P42=0;
P44=0;
if((P3&0x0f)==0x0f)key_state=0;
break;
}
}
void Timer1Init(void) //1000微秒@12.000MHz
{
AUXR &= 0xBF; //定时器时钟12T模式
TMOD &= 0x0F; //设置定时器模式
TL1 = 0x18; //设置定时初始值
TH1 = 0xFC; //设置定时初始值
TF1 = 0; //清除TF1标志
TR1 = 1; //定时器1开始计时
EA=1;
ET1=1;
}
void Timer0Init(void) //100微秒@12.000MHz
{
AUXR &= 0x7F; //定时器时钟12T模式
TMOD &= 0xF0; //设置定时器模式
TMOD|=0x05;
TL0 = 0x00; //设置定时初始值
TH0 = 0x00; //设置定时初始值
TF0 = 0; //清除TF0标志
TR0 = 0; //定时器0开始计时
ET0=0;
}
sys.h
#ifndef __SYS_H_
#define __SYS_H_
typedef unsigned char u8;
typedef unsigned int u16;
#define lock(x) P2=P2&0x1f|(x<<5); P2=P2&0x1f;
#include "mystc.h"
void sys_init();
void smg_play(u8 du,u8 we);
void key_scan();
void Timer1Init(void);
void ReadTime();
void WriteTime();
u8 Read_adc(u8 word);
u8 Read_epprom(u8 word);
void Write_epprom(u8 word,u8 dat);
void Timer0Init(void);
u8 DT[];
extern u8 rkey;
u8 xdata TIME[];
u16 xdata ADLIM[];
u8 xdata BTIME[];
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