测速显示C程序4页.doc

#include #define uchar unsigned char #define uint unsigned int #define ulong unsigned long uchar a,b,c,d;#define LED_DAT P0sbit pin_SpeedSenser = P35; /速度传感器脉冲信号输出端接在T1上#define TIME_CYLC 100 /12M晶振，定时器10ms 中断一次 我们1秒计算一次转速,1000ms/10ms = 100#define PLUS_PER 2 /码盘的齿数 ，这里假定码盘上有2个齿，即传感器检测到2个脉冲，认为1圈#define K 1.0 /校准系数sbit zhen1=P10;sbit fan1=P11;sbit en1=P12; uchar code loops = 0x7f,0xbf,0xdf,0xef; /定义显示位控制驱动码uchar cod