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#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
//D0-D7:f,b,a,e,d,h,c,g 共阴 依次编码
//74LS04 反相器驱动数码管
uchar code table[10]
{0x5F,0x42,0x9E,0xD6,0xC3,0xD5,0xDD,0x46,0xDF,0xD7};
uchar i = 0; //用于 0-3 数码管轮流显示
uint j = 0; //计时的次数
uint time=0; //计时
uint pwm=16; //占空比
uint speed; //调制PWM波的当前的值
sbit R=P3^2; //右边传感器 P3^2
sbit L=P3^3; //左边传感器 P3^3
//电机驱动口定义
sbit ENB=P1^0; //前轮电机停止控制使能
sbit ENA=P1^1; //后轮控制调速控制端口
sbit IN1=P1^2; //前轮
1
=