單片機+DAC0832產生波形程序通過按鍵選擇 Proteus仿真

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ID:978036 發表于 2021-11-28 22:44 | 顯示全部樓層 |閱讀模式

上篇的升級版！proteus仿真圖和代碼：

單片機源程序如下:

#include <reg51.h>
#include <intrins.h>
#include<ABSACC.H>
#define uchar unsigned char
#define data_OUT XBYTE[0x7FFF]
char code dat[]={
0x80,0x83,0x86,0x89,0x8D,0x90,0x93,0x96,0x99,0x9C,0x9F,0xA2,0xA5,0xA8,0xAB,0xAE,
0xB1,0xB4,0xB7,0xBA,0xBC,0xBF,0xC2,0xC5,0xC7,0xCA,0xCC,0xCF,0xD1,0xD4,0xD6,0xD8,
0xDA,0xDD,0xDF,0xE1,0xE3,0xE5,0xE7,0xE9,0xEA,0xEC,0xEE,0xEF,0xF1,0xF2,0xF4,0xF5,
0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFD,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFD,0xFD,0xFC,0xFB,0xFA,0xF9,0xF8,0xF7,0xF6,
0xF5,0xF4,0xF2,0xF1,0xEF,0xEE,0xEC,0xEA,0xE9,0xE7,0xE5,0xE3,0xE1,0xDF,0xDD,0xDA,
0xD8,0xD6,0xD4,0xD1,0xCF,0xCC,0xCA,0xC7,0xC5,0xC2,0xBF,0xBC,0xBA,0xB7,0xB4,0xB1,
0xAE,0xAB,0xA8,0xA5,0xA2,0x9F,0x9C,0x99,0x96,0x93,0x90,0x8D,0x89,0x86,0x83,0x80,
0x80,0x7C,0x79,0x76,0x72,0x6F,0x6C,0x69,0x66,0x63,0x60,0x5D,0x5A,0x57,0x55,0x51,
0x4E,0x4C,0x48,0x45,0x43,0x40,0x3D,0x3A,0x38,0x35,0x33,0x30,0x2E,0x2B,0x29,0x27,
0x25,0x22,0x20,0x1E,0x1C,0x1A,0x18,0x16,0x15,0x13,0x11,0x10,0x0E,0x0D,0x0B,0x0A,
0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
0x0A,0x0B,0x0D,0x0E,0x10,0x11,0x13,0x15,0x16,0x18,0x1A,0x1C,0x1E,0x20,0x22,0x25,
0x27,0x29,0x2B,0x2E,0x30,0x33,0x35,0x38,0x3A,0x3D,0x40,0x43,0x45,0x48,0x4C,0x4E,
0x51,0x55,0x57,0x5A,0x5D,0x60,0x63,0x66,0x69,0x6C,0x6F,0x72,0x76,0x79,0x7C,0x7E
};
bit flag=0;
void delay(unsigned int N)
{
int i;
for(i=0;i<N;i++);
}
void conversion_once_0832(unsigned char out_data)
{
data_OUT=out_data; //輸出數據
delay(10); //延時等待轉換
}
uchar keyscan()
{
uchar key;
if(P1!=0xff)
{
delay(61);
key=P1;
if(key!=0xff)
flag=~flag;
return(key);
}
}
void triangle()
{
uchar k;
for(k=0;k<255;k++)
conversion_once_0832(k);
for(;k>0;k--)
conversion_once_0832(k);
}
void square()
{
conversion_once_0832(0xff);
delay(1000);
conversion_once_0832(0x00);
delay(1000);
}
void juchibo()
{
uchar j;
for(j=0;j<255;j++)
conversion_once_0832(j);
}
void sin()
{
uchar i;
for(i=0;i<255;i++)
{
conversion_once_0832(dat[i]);
}
}
void main()
{
uchar temp;
while(1)
{
temp=keyscan();
switch(temp)
{
case 0xfe: do{
triangle();
}while(keyscan()&&(flag==1));break;
case 0xfd: do{
square();
}while(keyscan()&&(flag==1));break;
case 0xfb: do{
juchibo();
}while(keyscan()&&(flag==1));break;
case 0xf7: do{
sin();
}while(keyscan()&&(flag==1));break;
default: break;
}
}
}