简易信号发生器设计+单片机源代码+仿真

ID:593279 · 发表于 2019-7-31 19:42

实现三角波，方波，正弦，锯齿波的切换，这个切换通过拨码开关切换
1.正弦波

2.三角波

不说了看仿真和源代码

#include<reg52.h>
#include<absacc.h>
#define DAC0832 XBYTE[0x0fff]
float code table2[]={
0x80,0x83,0x85,0x88,0x8A,0x8D,0x8F,0x92,
0x94,0x97,0x99,0x9B,0x9E,0xA0,0xA3,0xA5,
0xA7,0xAA,0xAC,0xAE,0xB1,0xB3,0xB5,0xB7,
0xB9,0xBB,0xBD,0xBF,0xC1,0xC3,0xC5,0xC7,
0xC9,0xCB,0xCC,0xCE,0xD0,0xD1,0xD3,0xD4,
0xD6,0xD7,0xD8,0xDA,0xDB,0xDC,0xDD,0xDE,
0xDF,0xE0,0xE1,0xE2,0xE3,0xE3,0xE4,0xE4,
0xE5,0xE5,0xE6,0xE6,0xE7,0xE7,0xE7,0xE7,
0xE7,0xE7,0xE7,0xE7,0xE6,0xE6,0xE5,0xE5,
0xE4,0xE4,0xE3,0xE3,0xE2,0xE1,0xE0,0xDF,
0xDE,0xDD,0xDC,0xDB,0xDA,0xD8,0xD7,0xD6,
0xD4,0xD3,0xD1,0xD0,0xCE,0xCC,0xCB,0xC9,
0xC7,0xC5,0xC3,0xC1,0xBF,0xBD,0xBB,0xB9,
0xB7,0xB5,0xB3,0xB1,0xAE,0xAC,0xAA,0xA7,
0xA5,0xA3,0xA0,0x9E,0x9B,0x99,0x97,0x94,
0x92,0x8F,0x8D,0x8A,0x88,0x85,0x83,0x80,
0x7D,0x7B,0x78,0x76,0x73,0x71,0x6E,0x6C,
0x69,0x67,0x65,0x62,0x60,0x5D,0x5B,0x59,
0x56,0x54,0x52,0x4F,0x4D,0x4B,0x49,0x47,
0x45,0x43,0x41,0x3F,0x3D,0x3B,0x39,0x37,
0x35,0x34,0x32,0x30,0x2F,0x2D,0x2C,0x2A,
0x29,0x28,0x26,0x25,0x24,0x23,0x22,0x21,
0x20,0x1F,0x1E,0x1D,0x1D,0x1C,0x1C,0x1B,
0x1B,0x1A,0x1A,0x1A,0x19,0x19,0x19,0x19,
0x19,0x19,0x19,0x19,0x1A,0x1A,0x1A,0x1B,
0x1B,0x1C,0x1C,0x1D,0x1D,0x1E,0x1F,0x20,
0x21,0x22,0x23,0x24,0x25,0x26,0x28,0x29,
0x2A,0x2C,0x2D,0x2F,0x30,0x32,0x34,0x35,
0x37,0x39,0x3B,0x3D,0x3F,0x41,0x43,0x45,
0x47,0x49,0x4B,0x4D,0x4F,0x52,0x54,0x56,
0x59,0x5B,0x5D,0x60,0x62,0x65,0x67,0x69,
0x6C,0x6E,0x71,0x73,0x76,0x78,0x7B,0x7D};
void delay(unsigned int i)//延时函数
{
while(i--);
}
void fang()//方波
{
DAC0832=0;
delay(15);
DAC0832=0xff;
delay(15);
}
void jvchi()//锯齿波
{
unsigned char i;
for(i=0;i<255;i++)
{
DAC0832=i;
// delay(10);
}
}
void tran()//三角波
{
unsigned char i;
for(i=0;i<255;i++)
{
DAC0832=i;
// delay(10);
}
for(i=255;i>0;i--)
{
DAC0832=i;
// delay(10);
}
}
void sin()//正弦波
{
unsigned int i;
for(i=0;i<256;i++)
{
DAC0832=table2[i];
// delay(10);
}
}
void main(void)//主函数
{
while(1)
{
if(P1==0xfe)fang();
if(P1==0xfd)jvchi();
if(P1==0xfb)tran();
if(P1==0xf7)sin();
if(P1==0xff)DAC0832=0;
}
}

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简易函数信号发生器的设计.rar (25.73 KB, 下载次数: 57)

ID:282095 · 发表于 2019-8-1 10:35

类似于示波器的功能吧

ID:593279 · 发表于 2019-8-1 13:59

鹏博士PBs 发表于 2019-8-1 10:35
类似于示波器的功能吧

这是信号发生器是输入信号的示波器是输出设备

ID:447644 · 发表于 2019-11-11 19:59

请问里面包含有显示器显示频率啥的么

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简易信号发生器设计+单片机源代码+仿真

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