第三届蓝桥杯单片机省赛

最新推荐文章于 2022-10-23 01:00:00 发布

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最新推荐文章于 2022-10-23 01:00:00 发布

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文章标签：单片机蓝桥杯

本文链接：https://blog.youkuaiyun.com/m0_62431348/article/details/123722385

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STC15单片机 I2C通信 ADC转换 LCD显示单片机编程

关键词由优快云通过智能技术生成

直接复制粘贴然后运行

然后打开stc烧录到开发板上面就能用程序哪里不懂的话问我，我闲的蛋疼！

#include <STC15F2K60S2.H>
#include <intrins.h>

unsigned char yi,er,san,si,wu,liu,qi,ba;
unsigned char shuju,zhuzhi;
unsigned char tab[]={0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90};
#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_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();}

#define SlaveAddrW 0xA0
#define SlaveAddrR 0xA1

sbit SDA = P2^1; /* 数据线 */
sbit SCL = P2^0; /* 时钟线 */


void IIC_Start(void);
void IIC_Stop(void);
void IIC_SendByte(unsigned char byt);
bit IIC_WaitAck(void);
unsigned char IIC_RecByte(void);
unsigned char AD();

void Delayms(int ms)
{
   int i,j;
   for(i=0;i<ms;i++)
       for(j=845;j>0;j--);
}
void chushihua()
{
   P2=0XA0;P0=0X00;P2=0X80;P0=0XFF;
   P2=0XC0;P0=0X00;P2=0XFF;P0=0XFF;
}
void shumaguan1(unsigned char yi,unsigned char er)
{
   P2=0XC0;
   P0=0X01;
   P2=0XFF;
   P0=tab[yi];
   Delayms(1);

   P2=0XC0;
   P0=0X012;
   P2=0XFF;
   P0=tab[er];
   Delayms(1);
}
void shumaguan2(unsigned char san,unsigned char si)
{
   P2=0XC0;
   P0=0X04;
   P2=0XFF;
   P0=tab[san];
   Delayms(1);

   P2=0XC0;
   P0=0X08;
   P2=0XFF;
   P0=tab[si];
   Delayms(1);
}
void shumaguan3(unsigned char wu,unsigned char liu)
{
   P2=0XC0;
   P0=0X10;
   P2=0XFF;
   P0=tab[wu];
   Delayms(1);

   P2=0XC0;
   P0=0X20;
   P2=0XFF;
   P0=tab[liu];
   Delayms(1);
}
void shumaguan4(unsigned char qi,unsigned char ba)
{
   P2=0XC0;
   P0=0X40;
   P2=0XFF;
   P0=tab[qi];
   Delayms(1);

   P2=0XC0;
   P0=0X80;
   P2=0XFF;
   P0=tab[ba];
   Delayms(1);
}
void main()
{
   chushihua();
   yi=1;er=2;san=3;si=4;wu=5;liu=6;qi=7;ba=8;
   while(1)
   {
       zhuzhi=AD();
       yi=zhuzhi/100;er=zhuzhi%100/10;san=zhuzhi%10;
       shumaguan1(yi,er);
       shumaguan2(san,si);
       shumaguan3(wu,liu);
       shumaguan4(qi,ba);
   }
}
void IIC_Start(void)
{
   SDA = 1;
   SCL = 1;
   somenop;
   SDA = 0;
   somenop;
   SCL = 0;
}
void IIC_Stop(void)
{
   SDA = 0;
   SCL = 1;
   somenop;
   SDA = 1;
}
bit IIC_WaitAck(void)
{
   SDA = 1;
   somenop;
   SCL = 1;
   somenop;
   if(SDA)
   {
       SCL = 0;
       IIC_Stop();
       return 0;
   }
   else
   {
       SCL = 0;
       return 1;
   }
}
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;
   }
}
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;
}
unsigned char AD()
{
   unsigned char abb;
   IIC_Start();
   IIC_SendByte(0X90);
   IIC_WaitAck();
   IIC_SendByte(0X01);
   IIC_WaitAck();
   IIC_Stop();

   IIC_Start();
   IIC_SendByte(0X91);
   IIC_WaitAck();
   abb=IIC_RecByte();
   IIC_Stop();
   return abb;
}