sec.c

来自「单片及c语言轻松入门的随书光盘」· C语言 代码 · 共 103 行

#include "intrins.h"
#include <rtx51tny.h> 
#include "reg51.h"
#include "intrins.h"
#define uchar unsigned char
#define uint unsigned int
#define Init 0  //初始化
#define Disp 1	 //显示程序定为任务1
#define Led  2	//LED闪烁定为任务2
#define Data 3	//数值处理
#define Key  4   //键盘操作定义为任务3

bit   StartLedFlash;	//启停LED流动
bit     LeftRight;		//流动方向

 uchar BitTab[]={0x7F,0xBF,0xDF,0xEf,0xF7,0xFB};
uchar DispTab[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,
0xC6,0xA1,0x86,0x8E,0xFF};
uchar DispBuf[6];
uint  Count=0;	//计数值
void job0 (void ) _task_ Init {
	TH1=-(10000/256);
	TL1=-(10000%256);	
    TMOD|=0x10;      	
	ET1=1;				
	TR1=1;				
    PT1=1;				
os_create_task (Disp); 
os_create_task (Led); 
os_create_task (Data);
os_create_task (Key);
os_delete_task (0);
}
void Display(void) _task_ Disp{
    static uchar DispCount;
	while(1){
		P2=0xff;		//全灭
		P0=DispTab[DispBuf[DispCount]];
		P2=BitTab[DispCount];
		DispCount++;
		if(DispCount==6)
			DispCount=0;
		os_wait2(K_IVL,4);	
	}
}
void Timer1() interrupt 3
{	TH1=-(10000/256);
	TL1=-(10000%256);	
	isr_send_signal(Led);//送出信号
}
void LedFlash(void) _task_ Led{
	static uchar FlashLed=0xfe;
	static uchar LedCount;
	while(1)
	{	LedCount++;
		Count++;		//计数值不断加1
		if(LedCount>=100) 
		{	if(StartLedFlash)  // 
			{	P1=FlashLed;
				if(LeftRight)	
					FlashLed=_crol_(FlashLed,1);
				else					
					FlashLed=_cror_(FlashLed,1);
			}		
			LedCount=0;
		}
		os_wait(K_SIG,1,0);	//等待信号
	}
}
void DataProcess(void) _task_ Data{
	uint tmp;
	while(1){	tmp=Count;
		DispBuf[4]=tmp%10;
		tmp/=10;
		DispBuf[3]=tmp%10;
		tmp/=10;
		DispBuf[2]=tmp%10;
		tmp/=10;
		DispBuf[1]=tmp%10;
		DispBuf[0]=tmp/10;
	}
}
void KeyValue(uchar KeyV)
{	if((KeyV|0xfb)!=0xff)	
		StartLedFlash=1;
	else if((KeyV|0xf7)!=0xff)
		StartLedFlash=0;
	else if((KeyV|0xef)!=0xff)
		LeftRight=1;
	else if((KeyV|0xdf)!=0xff)
		LeftRight=0;
}
void KeyProcess(void) _task_ Key{
	uchar tmp;
	while(1)
	{	P3|=0x3c;	//中间4位置高电平
		tmp=P3;
		tmp|=0xc3;	//两边4位置高电平
		if(tmp!=0xff)
			KeyValue(tmp);
		os_wait(K_IVL,2,0);
	}
}