基于AT89C51和DAC0832、LM324的波形发生器能发生正弦，方波，三角波，锯齿波四种波形用C语言编写，谢谢了
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit lcdrs=P3^2;
sbit lcdrw=P3^3;
sbit lcde=P3^4;
sbit d=P2^7;
sbit s1=P2^0;
sbit s2=P2^1;
sbit s3=P2^2;
sbit cs=P3^5;
sbit wr=P3^6;
uchar slnum,a,ys,j;
uint fre;
void delay(uint z)
{
uint i,j;
for(i=z;i>0;i--)
for(j=110;j>0;j--);
}
void delay1(uint y)
{
uint i;
for(i=y;i>0;i--);
}
uchar code tosin[256]=
{
0x80,0x82,0x85,0x88,0x8b,0x8e,0x91,0x94,0x97,0x9a,0x9d,0xa0,0xa3,0xa6,
0xa9,0xac,0xaf,0xb2,0xb6,0xb9,0xbc,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,0xe9,0xe7,0xe5,0xe3,0xe1,0xde,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,0x80
};
void write_com(uchar com)
{
lcdrs=0;
P1=com;
delay(5);
lcde=1;
delay(5);
lcde=0;
}
void write_data(uchar date)
{
lcdrs=1;
P1=date;
delay(5);
lcde=1;
delay(5);
lcde=0;
}
void init()
{
lcdrw=0;
lcde=0;
wr=0;
cs=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80+0x00);
write_data(0x77); //写wave
write_data(0x61);
write_data(0x76);
write_data(0x65);
write_data(0x3a);
write_data(0x80+0x40); //写f
write_data(0x66);
write_data(0x3a);
}
void write_f(uint date) //写频率
{
uchar qian,bai,shi,ge;
qian=date/1000;
bai=date/100%10;
shi=date/10%10;
ge=date%10;
write_com(0x80+0x42);
write_data(0x30+qian);
write_data(0x30+bai);
write_data(0x30+shi);
write_data(0x30+ge);
write_data(0x48);
write_data(0x5a);
}
void xsf() //显示频率
{
if(slnum==1)
{
fre=(1000/(9+3*ys));
write_f(fre);
}
if(slnum==2)
{
fre=(100000/(3*ys));
write_f(fre);
}
if(slnum==3)
{
fre=(1000/(15+3*ys));
write_f(fre);
}
}
void keyscanf()
{
d=0;
if(s1==0)
{
delay(5);
if(s1==0)
{
while(!s1);
slnum++;
if(slnum==1)
{
ys=0;
write_com(0x80+0x05);
write_data(0x73); //写sine:
write_data(0x69);
write_data(0x6e);
write_data(0x65);
write_data(0x20);
write_data(0x20);
}
if(slnum==2)
{
ys=10;
write_com(0x80+0x05);
write_data(0x73); //写squrae
write_data(0x71);
write_data(0x75);
write_data(0x61);
write_data(0x72);
write_data(0x65);
}
if(slnum==3)
{
ys=0;
write_com(0x80+0x05); //写train
write_data(0x74);
write_data(0x72);
write_data(0x61);
write_data(0x69);
write_data(0x6e);
write_data(0x20);
}
if(slnum==4)
{
slnum=0;
P1=0;
write_com(0x80+0x05);
write_data(0x20);
write_data(0x20);
write_data(0x20);
write_data(0x20);
write_data(0x20);
write_data(0x20);
write_com(0x80+0x42);
write_data(0x20);
write_data(0x20);
write_data(0x20);
write_data(0x20);
write_data(0x20);
write_data(0x20);
}
}
}
if(s2==0)
{
delay(5);
if(s2==0)
{
while(!s2);
ys++;
}
}
if(s3==0)
{
delay(5);
if(s3==0)
{
while(!s3);
ys--;
}
}
}
void main()
{
init();
while(1)
{
keyscanf();
if(slnum==1) //正弦波//
{
for(j=0;j<255;j++)
{
P0=tosin[j];
delay(ys);
}
}
if(slnum==2) //方波//
{
P0=0xff;
delay1(ys);
P0=0;
delay1(ys);
}
if(slnum==3) //三角波//
{
if(a<128)
{
P0=a;
delay1(ys);
}
else
{
P0=255-a;
delay1(ys);
}
a++;
}
if(!(s1&s2&s3))
{
xsf();
}
}
}
谢谢你的程序，请问仿真成功了吗？
成功的
