【蓝桥杯单片机】第十届省赛

最新推荐文章于 2022-04-24 21:21:54 发布

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最新推荐文章于 2022-04-24 21:21:54 发布

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分类专栏：蓝桥杯文章标签：单片机

本文链接：https://blog.youkuaiyun.com/qq_46690542/article/details/117379646

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本文详细介绍了参与第十届蓝桥杯省赛的单片机竞赛经验，包括赛题分析、解决方案和实战技巧，为读者提供宝贵的参赛指导。

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#include "reg52.h"
#include "iic.h"

sbit L1 = P0^0;
sbit L2 = P0^1;
sbit L3 = P0^2;
sbit L4 = P0^3;
sbit L5 = P0^4;
sbit S7 = P3^0;
sbit S6 = P3^1;
sbit S5 = P3^2;
sbit S4 = P3^3;

unsigned char rb2;
unsigned int k4 = 0;
unsigned int k5 = 0;
unsigned int k6 = 0;
unsigned int k7 = 0;
unsigned count_t = 0;
unsigned count_f = 0;
unsigned dat_f = 0;
unsigned char Vdac;
unsigned char duanma[18] = {
   0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x80,0xc6,0xc0,0x86,0x8e,0xbf,0x7f};
unsigned char duanmadot [10] = {
   0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};

//========================选择函数===============================
void selectHC573(unsigned char chennel)
{
   
  switch(chennel)
  {
   
    case 4:
	  P2 = (P2 & 0x1f) | 0x80;
	  break;
	case 5:
	  P2 = (P2 & 0x1f) | 0xa0;
	  break;
	case 6:
	  P2 = (P2 & 0x1f) | 0xc0;
	  break;
	case 7:
	  P2 = (P2 & 0x1f) | 0xe0;
	  break;
  }
}

//========================初始化函数=============================
void Initsystem()
{
   
  selectHC573(4);
  P0 = 0xff;
  selectHC573(5);
  P0

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