#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define NOP(){_nop_();_nop_();_nop_();_nop_();}
uchar code FFW[]={0x01,0x03,0x02,0x06,0x04,0x0c,0x08,0x09};
uchar code REV[]={0x09,0x08,0x0c,0x04,0x06,0x02,0x03,0x01};
uchar code table_1[]={"motor_speed:"}; //LCD第一行显示
uchar table_2[]={"000 n/min "}; //LCD第二行显示
sbit k1=P3^0;
sbit k2=P3^1;
sbit k3=P2^7;
sbit k4=P3^2;
sbit k5=P3^3;
//------LCD引脚-----
sbit LCD_RS=P2^0;
sbit LCD_RW=P2^1;
sbit LCD_EN=P2^2;
uchar rate;
uchar c=8;
uchar d;
long int v;
uchar cache[3]={0,0,0};
//--------延时-------
void delay(uint x)
{
uchar i;
while(x--)
for(i=0;i<120;i++);
}
void comp_velocity()
{
rate=6000000/(v*40*12);
}
//------加速程序--------
void EX_INT0() interrupt 0
{
uchar N=5;
uchar i,j,k;
for(i=0;i<N;i++)
{
v=v+5;
comp_velocity();
for(j=0;j<i;j++)
{
for(k=0;k<8;k++)
{
if(d==1)P1=FFW[k];
if(d==0)P1=REV[k];
delay(rate);
}
}
}
}
//------减速程序------
void EX_INT1() interrupt 2
{
uchar N=5;