使用proteus8.9仿真51單片機(jī)通過(guò)dac0832實(shí)現(xiàn)4種波形切換,通過(guò)四個(gè)按鍵來(lái)切換不同...
仿真原理圖如下(proteus仿真工程文件可到本帖附件中下載)
單片機(jī)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(shù)據(jù)
- delay(10); //延時(shí)等待轉(zhuǎn)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;
- }
- }
-
- }
-
復(fù)制代碼
Keil代碼與Proteus8.9仿真51hei附件下載:
DAC0832.7z
(83.24 KB, 下載次數(shù): 40)
2022-4-23 04:12 上傳
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