51单片机超声波程序(共5页).doc

精选优质文档-倾情为你奉上51单片机超声波程序/晶振=8M/MCU=STC10F04XE/P0.0-P0.6共阳数码管引脚/Trig = P10/Echo = P32#include /包括一个52标准内核的头文件#define uchar unsigned char /定义一下方便使用#define uint unsigned int#define ulong unsigned long/*sfr CLK_DIV = 0x97; /为STC单片机定义,系统时钟分频 /为STC单片机的IO口设置地址定义sfr P0M1 = 0X93;sfr P0M0 = 0X94;sfr P1M1 = 0X91;sfr P1M0 = 0X92;sfrP2M1 = 0X95;sfrP2M0