基于单片机的波形发生器
#include<reg52.h> //?????
#include<intrins.h>
#define uchar unsigned char //???
#define uint unsigned int
sbit s1=P3^5; //???????
sbit s2=P3^6;
sbit s3=P3^7;
sbit s4=P3^4;
sbit led0=P3^0;
sbit led1=P3^1;
sbit led2=P3^2;
sbit led3=P3^3;
sbit lcdrs=P2^7; //?????
sbit lcden=P2^6;
char num,boxing,u; //??????
int pinlv=100,bujin=1,bujin1=1;
uchar code table[]="0123456789"; //???????
uchar code table1[]="Fout= Wave form:";
unsigned long int m;
int a,b,h,num1;
uchar code sin[64]={
135,145,158,167,176,188,199,209,218,226,234,240,245,249,252,254,254,253,251,247,243,237,230,222,213,204,193,182,170,158,
146,133,121,108,96,84,72,61,50,41,32,24,17,11,7,3,1,0,0,2,5,9,14,20,28,36,45,55,66,78,90,102,114,128
}; //?????
uchar code juxing[64]={
255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
255,255,255,255,255,255,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
}; //?????
uchar code sanjiao[64]={
0,8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,168,176,184,192,200,208,216,224,232,240,248,
248,240,232,224,216,208,200,192,184,176,168,160,152,144,136,128,120,112,104,96,88,80,72,64,56,48,40,32,24,16,8,0
}; //?????
uchar code juchi[64]={
0,4,8,12,16,20,24,28,32,36,40,45,49,53,57,61,65,69,73,77,81,85,89,93,97,101,105,109,113,117,121,125,130,134,138,142,
146,150,154,158,162,166,170,174,178,182,186,190,194,198,202,206,210,215,219,223,227,231,235,239,243,247,251,255
}; //?????
void delay(uint xms) //????
{
int a,b;
for(a=xms;a>0;a--)
for(b=110;b>0;b--);
}
void write_com(uchar com) //?????
{
lcdrs=0;
P0=com;
delay(1);
lcden=1;
delay(1);
lcden=0;
}
void write_date(uchar date) //?????
{
lcdrs=1;
P0=date;
delay(1);
lcden=1;
delay(1);
lcden=0;
}
//??????
void Lcd_ram()
{
uint i,j,k=0,temp=0x40;
for(i=0;i<7;i++)
{
for(j=0;j<8;j++)
{
write_com(temp+j);
write_date(zifu[k]);
k++;
}
temp=temp+8;
}
}
void init_lcd() //?????
{
uchar i;
lcden=0; //???????????,????
Lcd_ram();
write_com(0x0f);
write_com(0x38); //??????,???0x38,????
write_com(0x0c); //??????0x0f????,????,????;0x0c????,????,????
write_com(0x06); //????????0x06,?????????1.
write_com(0x80); //?????????,????????????
for(i=10;i<20;i++) //?????
{
write_date(table1[i]);
}
write_com(0x80+0x40);
for(i=0;i<9;i++)
{
write_date(table1[i]);
}
write_com(0x80+10);
write_date(0);
write_date(1);
write_date(0);
write_date(1);
write_date(0);
write_date(1);
write_com(0x80+0x40+0x09);
write_date(' '); write_date('z');
}
void initclock() //?????
{
TMOD=0x01;
TH0=a;
TL0=b;
EA=1;
ET0=1;
TR0=1;
}
void display() //????
{
uchar qian,bai,shi,ge;
qian=pinlv/1000;
bai=pinlv%1000/100;
shi=pinlv%1000%100/10;
ge=pinlv%1000%100%10;
write_com(0x80+0x40+0x09);
if(qian==0)
write_date(' ');
else
write_date(table[qian]);
if(qian==0&&bai==0)
write_date(' ');
else
write_date(table[bai]);
write_date('z');
if(boxing==0)
{
write_com(0x80+10);
write_date(0);
write_date(1);
write_date(0);
write_date(1);
write_date(0);
write_date(1);
led3=1;
led0=0;
}
if(boxing==1)
{
write_com(0x80+10);
write_date(2);
write_date(3);
write_date(2);
led0=1;
led1=0;
}
if(boxing==2)
{
write_com(0x80+10);
write_date(4);
write_date(5);
write_date(4);
write_date(5);
write_date(4);
write_date(5);
led1=1;
led2=0;
}
if(boxing==3)
{
write_date(6);
write_date(6);
write_date(6);
led2=1;
led3=0;
}
}
void keyscan() //??????
{
if(s1==0)
{
EA=0;
delay(2);
}
display();
m=65536-(150000/pinlv);
a=m/256;
b=m%256;
EA=1;
}
}
if(s2==0)
{
delay(5);
if(s2==0)
{
EA=0;
while(!s2);
pinlv-=bujin;
if(pinlv<100)
{
a=m/256;
b=m%256;
EA=1;
}
}
if(s3==0)
{
delay(5);
if(s3==0)
{
EA=0;
while(!s3);
boxing++;
if(boxing>=4)
{
boxing=0;
}
display();
EA=1;
}
}
}
void bujindisplay()
{
uint bai,shi,ge;
bai=bujin1/100;
shi=bujin1%100/10;
ge=bujin1%100%10;
write_com(0x80+11);
if(bai==0)
write_date(' ');
else
write_date(table[bai]);
write_date(table[shi]);
write_date('.');
write_date(table[ge]);
}
void bujinjiance()
{
if(s4==0)
{
delay(5);
if(s4==0)
{
while(!s4);
h++;
if(h==1)
{
write_com(0x01);
write_com(0x80);
write_date('S');delay(1); //step value
write_date('t');delay(1);
write_date('e');delay(1)
write_date('e');delay(1);
write_date(':');delay(1);
bujin1=bujin;
bujindisplay();
}
if(h==2)
{
h=0;
bujin=bujin1;
init_lcd();
initclock();
display();
}
}
}
if(h==1)
{
if(s1==0)
{
delay(5);
if(s1==0)
{
1;
}
bujindisplay();
}
}
if(s2==0)
{
delay(5);
if(s2==0)
{
while(!s2);
bujin1--;
if(bujin1<=0)
{
bujin1=100;
}
bujindisplay();
}
}
}
}
void main() //???
{
init_lcd();
while(1)
{
if(h==0)
{
keyscan();
// display();
}
bujinjiance();
switch(boxing)
{
case 0 : P1=sin[u]; break;
case 1 : P1=juxing[u]; break;
case 2 : P1=sanjiao[u]; break;
case 3 : P1=juchi[u]; break;
}
}
}
void T0_time()interrupt 1 //???
{
TH0=a;
TL0=b;
u=0;
}
想问大佬们这东西怎么改啊，能帮帮孩子嘛？
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