基于RTX-51 Tiny多任务系统设计

#include <intrins.h> #include "reg51.h" #include "DS1302-2.h" #include "keyscan.h" #include "LEDdisplay.h" #include "DS18B20.h" #include <rtx51tny.h> /* RTX51 tiny functions & defines */ #define BEE P3^7 #define BEON P3 &= 0xBF #define BEOFF P3 |= 0x40 #define uint unsigned int #define uchar unsigned char #define Pass 1 #if Pass sbit PLed = P2^3; #else sbit PLed = P1^0; //LED Sec flash #endif /* sbit Set = P3^2; //设置调整 sbit Up = P3^3; //向上调整 sbit Down = P3^4; //向下调整 sbit BEEP = P1^7; //提示音输出 */ #define FullTask 1 #if FullTask //定义任务数量: #define Init 0 //任务初始化 #define Display 1 //显示任务 #define ReadTime 2 //读取当前时间任务 #define ReadTemp 3 //读取当前测试任务 #define DS18BInit 4 //初始化DS18B20并延时准备读取温度值 #define TimerSet 5 //设置时间任务 #define ModeKey 6 #else //调试模式简化任务数量 //define task NO. #define Init 0 //Init #define TimerSet 1 //Display #define ReadTime 2 //Read time #endif #undef FullTask //unsigned char code Bit_Tab[6] = {0x01,0x02,0x04,0x08,0x10,0x20}; //NPN //unsigned char code Bit_Tab[6] = {0xFE,0xFD,0xFB,0xF7,0xEF,0xDF}; //PNP bit Time_flag = 0; //按键第一次按下时停止时钟 unsigned char KeyCount; //按键状态计数 unsigned char DisplayBuffer[4] = {0,0,0,0}; //显示缓冲 void job(void) _task_ Init //任务初始化 { DS1302_RST = 0; DS18B20_Init_Jindu(); //调整DS18B20转换精度 //获得当前时间 os_create_task(Display); os_create_task(ModeKey); os_create_task(ReadTime); os_create_task(DS18BInit); // Initial_DS1302(); _nop_(); _nop_(); DS1302_GetTime(); os_delete_task(Init); } void ReadModeKey(void) _task_ ModeKey //按键检测任务 { static unsigned char Count = 0; static unsigned int ReadDsTemp = 0; //读取温度值&延时 static bit Flag_mode = 0; //温度与时间显示转换标志 while(1) { if(!Set) //读取当TimerSet按键 { os_delete_task(ReadTemp); os_create_task(TimerSet); //进入时钟设置模式 os_delete_task(ModeKey); //删除当前模式 } else { Count = 0; } ReadDsTemp++; //垒加 ReadDsTemp &= 0x03ff; //防溢出 if(ReadDsTemp == 0) //开始转换显示温度 { Flag_mode = 1; PLed = 1; //显示温度秒不闪闪 os_create_task(ReadTemp); } if(ReadDsTemp == 0x015f) //开始转换显示时间 { os_send_signal(ReadTime); Flag_mode = 0; } if(!Flag_mode) { if((ReadDsTemp & 0x7F) == 0) { os_send_signal(ReadTime); //读取当前时间,间隔0.9S } if((ReadDsTemp & 0x1F) == 0) { PLed = !PLed; //秒每间隔0.3S闪一次 } if((ReadDsTemp & 0x1ff) == 0) { os_send_signal(DS18BInit); //初始化DS18B20准备读取温度 } } os_wait2(K_TMO,2); } } void LedDisplay(void) _task_ Display //数码管显示任务 { while(1) { os_wait2(K_TMO,2); display(); //显示当前时间 } } void DisplaySet(void) _task_ TimerSet //时间调整任务 { static unsigned int count = 0; //read time jiange static unsigned char Key_count = 0; //按键判断 static bit KeyR = 0; //防止反复读入Key值 while(1) { os_wait2(K_TMO,2); if(!Set) { if(!KeyR) { Key_count++; if(Key_count > 8) //防抖 { KeyR = 1; di(100); KeyCount ++; //设置模式加1 count = 0; Time_flag = 0; //停止时钟 PLed = 0; //秒灯常亮 Key_count = 0; } } } else { Key_count = 0; KeyR = 0; if(KeyCount == 0) { timedone(); Key_count = 0; KeyR = 0; Time_flag = 0; count = 0; os_send_signal(ReadTime); os_create_task(ModeKey); os_delete_task(TimerSet); } } timedone(); count++; if(count > 0x3fff) { count = 0; KeyCount = 0; } } } void DS_Init(void) _task_ DS18BInit //读取测试初始化 { static unsigned char count = 0; while(10) { os_wait1(K_SIG); if(!(Ds18b20_Init())) { Ds18b20_WriteByte(0xcc); //铬?ROM Ds18b20_WriteByte(0x44); //????? } else { count++; if(count > 6) { count = 0; } else { os_send_signal(DS18BInit); } } } } void DS_ReadTemp(void) _task_ ReadTemp //读取温度 { unsigned char tempL = 0,tempH = 0,temp = 0; unsigned char TempValue = 0; while(1) { os_wait2(K_TMO,10); TR0 =0; Ds18b20_Init(); Ds18b20_WriteByte(0xcc); //铬?ROM Ds18b20_WriteByte(0xbe); //??誹 tempL = Ds18b20_ReadByte(); tempH = Ds18b20_ReadByte(); TR0 = 1; if(tempH & 0xF0) { tempH = ~tempH; tempL = (~tempL)+1; temp = 1; } TempValue = tempH << 4; TempValue |= (tempL >> 4); if(temp == 1) { CurrentTimeYear = 22; } else { CurrentTimeYear = 0; } CurrentTimeHour = TempValue/10; CurrentTimeSecond = TempValue%10; CurrentTimeMinute = TempCharC; os_delete_task(ReadTemp); } } void ReadTime_Sec(void) _task_ ReadTime { while(1) { DS1302_GetTime(); os_wait1(K_SIG); } }