15届蓝桥杯单片机模拟题Ⅲ

main.c

#include "Init.h"
#include "Key.h"
#include "Smg.h"
#include "ultrasonic.h"
#include "Led.h"
#include <stdio.h>
#include "Timer.h"
#include "iic.h"

//函数声明
void Key_Proc();
void Led_Proc();
void Smg_Proc();
void Record();
void ADC_mode();

//按键变量
unsigned char Key_Old;

//Led显示变量
unsigned char ucled;

//数码管显示变量
unsigned char string[10];
unsigned char buf[8]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
unsigned char pos=0;

//显示刷新变量
unsigned char Key_Slow;
unsigned char Record_Slow;
unsigned char Smg_Slow;

//定时器计数
unsigned long Ms_Tick;
unsigned long Ms_Led;

//模式切换
unsigned char S4_mode=0;	//0-测距，1-参数界面，2-记录界面
bit S5_mode=0; //0-按键模式，1-旋钮模式

unsigned char K_Para_High=60;
unsigned char K_Para_Low=10;

unsigned char R_Para_High=60;
unsigned char R_Para_Low=10;

unsigned char my_alarm=0;
bit old_flag=0;
bit new_flag=