基于stc8g1k08a单片机的简易示波器和超声波测距二合一小制作附程序 -

#include "reg51.h"
#include "intrins.h"
#include"main.h"
#include<math.h>
unsigned char xdata se[128];//把AD转换后的临时数据存于该数组
unsigned char code sm[8]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};//用于显示一列中的一点
unsigned int code time[9]={1,40,100,500,1000,2600,5250,10000,25000};
unsigned int code time1[9]={1,3,5,20,40,100,200,400,1000};
unsigned char xdata timd[5];
unsigned char xdata ju_li[5];
unsigned char p,z=0;
unsigned int i=0,q=0;
unsigned int m=5;
//unsigned double q;
sbit k1=P3^1;
sbit trig=P3^3;
sbit echo=P3^2;
void delay_us(unsigned int i)
{
while(i)
{
unsigned char a;
for(a=5;a>0;a--);
i--;
}
}
void delay100ms(unsigned int i) //误差 -0.000000000025us
{
while(i)
{
unsigned char a,b,c;
for(c=106;c>0;c--)
for(b=197;b>0;b--)
for(a=38;a>0;a--);
_nop_(); //if Keil,require use intrins.h
i--;
}
}
void main()
{
P0M1 = 0; P0M0 = 0; //设置为准双向口
P1M1 = 0; P1M0 = 0; //设置为准双向口
P2M1 = 0; P2M0 = 0; //设置为准双向口
P3M1 = 0; P3M0 = 0; //设置为准双向口
P4M1 = 0; P4M0 = 0; //设置为准双向口
P5M1 = 0; P5M0 = 0; //设置为准双向口
/* P_SW2 = 0x80; //特殊寄存器允许位（0x80）
CKSEL = 0x00; //选择内部 IRC ( 默认 )
CLKDIV = 0x03; //时钟 3分频
P_SW2 = 0x00;
*/
ad_init(); //ad转换初始化
OLED_Init(); //OLED初始化
for(z=0;z<128;z++) // 起显示启动示波器文字
{
for(i=0;i<8;i++) //清屏
{
OLED_WrCmd(0xb0+i);
OLED_WrCmd(0x00+(z%16));
OLED_WrCmd(0x10+z/16);
OLED_WrDat(0x00);
}
}
for (i=0;i<8;i++)
{
OLED_P16x16Ch(i*16,i/8*2+2,i);
}
delay100ms(30);
for(z=0;z<128;z++)
{
for(i=0;i<8;i++) //清屏
{
OLED_WrCmd(0xb0+i);
OLED_WrCmd(0x00+(z%16));
OLED_WrCmd(0x10+z/16);
OLED_WrDat(0x00);
}
} //止
while(1)
{
if(k1==0)
{
i=0;
m++;
while(!k1)
{
delay100ms(1);
i++;
if(i>50)
goto bosh;
}
if(m>8)
{
m=0;
}
//i++;
}
//*******************AD转换将临时数据存于数组se[] ****************************************
for(i=0;i<128;i++)
{
se[i]=56-ad_dat()/18;
delay(time[m]);
}
timd[0]=time1[m]%10;
timd[1]=time1[m]/10%10;
timd[2]=time1[m]/100%10;
timd[3]=time1[m]/1000%10;
timd[4]=time1[m]/10000%10;
OLED_P6x8Str(10,7,"Time = ");
OLED_P6x8Str(10+70,7," ms");
for(i=0;i<5;i++) //显示扫描周期每一位共五位
{
oled_6x8((10+40)+6*i,7,timd[4-i]+16);
}
//**********************oled显示****************************
/* for(i=0;i<7;i++)
{
OLED_WrCmd(0xb0+i);
OLED_WrCmd(0x00+(z%16));
OLED_WrCmd(0x10+z/16);
OLED_WrDat(0x00);
}
*/
for(z=0;z<128;z++)
{
for(i=0;i<7;i++)
{
OLED_WrCmd(0xb0+i);
OLED_WrCmd(0x00+(z%16));
OLED_WrCmd(0x10+z/16);
if((i==3)&&(z%4==0))
OLED_WrDat(0x10);
else if(z==63)
OLED_WrDat(0x44);
else
OLED_WrDat(0x00);
}
OLED_WrCmd(0xb0+se[z]/7);
OLED_WrCmd(0x00+(z%16));
OLED_WrCmd(0x10+z/16);
OLED_WrDat(sm[se[z]%7]);
// OLED_WrDat(0x00);
}
if(trig==0)
{
delay100ms(10);
while(trig);
while(!trig);
}
}
//启动超声波测距程序。。。。。。
bosh:
for(z=0;z<128;z++)
{
for(i=0;i<8;i++) //清屏
{
OLED_WrCmd(0xb0+i);
OLED_WrCmd(0x00+(z%16));
OLED_WrCmd(0x10+z/16);
OLED_WrDat(0x00);
}
}
for (i=0;i<8;i++)
{
OLED_P16x16Ch(i*16,i/8*2+2,i+8);
}
delay100ms(30);
for(z=0;z<128;z++)
{
for(i=0;i<8;i++) //清屏
{
OLED_WrCmd(0xb0+i);
OLED_WrCmd(0x00+(z%16));
OLED_WrCmd(0x10+z/16);
OLED_WrDat(0x00);
}
}
while(1)
{
if(k1==0)
{
q=0;
trig=0;
delay_us(1000);
trig=1;
i=10;
while(!echo)
{
delay_us(1);
i--;
i=0;
}
while(echo)
{
delay_us(1);
q++;
}
q=q*0.21;
while(!k1)
{
i++;
delay100ms(1);
if(i>50)
return;
}
}
//q=156;
ju_li[0]=q%10;
ju_li[1]=q/10%10;
ju_li[2]=q/100%10;
ju_li[3]=q/1000%10;
ju_li[4]=q/10000%10;
for(i=0;i<5;i++)
{
oled1_8x16( 48+8*i,4,ju_li[4-i]);
}
for (i=0;i<6;i++)
{
OLED_P16x16Ch(i*16,i/8*2,19+i);
}
for (i=0;i<3;i++)
{
OLED_P16x16Ch(i*16,i/8*2+2+2,19+6+i);
}
for (i=0;i<2;i++)
{
OLED_P16x16Ch(95+i*16,i/8*2+2+2,19+6+3+i);
}
}
}

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