Author：家有仙妻谢掌柜
Date：2021/2/8

总结一下用单片机做项目时代码的架构，写在这里记录自己的成长历程!

1.做智能手表的框架，暂时不完全，有时间会更新该文章

event.h文件

#define AppID_System 0 //系统准备
#define AppID_Timer 1 //GIF定时器
#define AppID_Main1 2 //主界面1
#define AppID_Main2 3 //主界面2
#define AppID_Main3 4 //主界面3
#define AppID_Main4 5 //主界面4
#define AppID_Max 6 //AppID最大值

#define UiID_None 0
#define UiID_Main1 1 //主界面1
#define UiID_Main2 2 //主界面2
#define UiID_Main3 3 //主界面3
#define UiID_Main4 4 //主界面4

#define MaxEventAmount 10 //表示同时可以最多执行10个事件
#define SystemEventStart(id) ((id) << 8)
#define SystemEventMask(event) (((event) >> 8)&0xffffffff)

enum{ 
		System_NoneEvent = SystemEventStart(AppID_System),
		System_InitEvent,		//先发这个事件
		System_MaxEvent
};

enum{ 
		Main1_NoneEvent = SystemEventStart(AppID_Main1),
		Main1_ShowEvent,	 
		Main1_ShowGifEvent,
		Main1_MaxEvent
};

enum{ 
		Main2_NoneEvent = SystemEventStart(AppID_Main2),
		Main2_ShowEvent,	 
		Main2_ShowGifEvent,
		Main2_MaxEvent
};

enum{ 
		Main3_NoneEvent = SystemEventStart(AppID_Main3),
		Main3_ShowEvent,	 
		Main3_ShowGifEvent,
		Main3_MaxEvent
};

enum{ 
		Main4_NoneEvent = SystemEventStart(AppID_Main4),
		Main4_ShowEvent,	 
		Main4_ShowGifEvent,
		Main4_MaxEvent
};

enum{ 
    	Timer_NoneEvent = SystemEventStart(AppID_Timer),
	  	Timer_GifEvent,	
    	Timer_MaxEvent 
};

event.c文件


static uint32_t	AppEventArray[MaxEventAmount] = { 
System_NoneEvent,System_NoneEvent,System_NoneEvent,System_NoneEvent,System_NoneEvent};	
uint32_t 	AppIDChoose;
uint16_t 	MenuChoose = UiID_None;
static int 	readEventIndex = 0;
static int 	writeEventIndex= 0;
  
static uint32_t APP_GetFirstEvent(void)
{    
	uint32_t event = AppEventArray[readEventIndex];
	if(event==System_NoneEvent)
	{ 
		readEventIndex++;
		readEventIndex%=MaxEventAmount;
	}
	return event;
}
  
void APP_SetEvent(uint32_t event)
{ 
	//AppEventArray|=event;
	AppEventArray[writeEventIndex]=event;
	writeEventIndex++;
	writeEventIndex%=MaxEventAmount;
}
  
void APP_ClearEvent(uint32_t event)
{ 
	int index;
	if(AppEventArray[readEventIndex]==event)
	{ 
		AppEventArray[readEventIndex] = System_NoneEvent;
		readEventIndex++;
		readEventIndex%=MaxEventAmount;
	}
	else
	{ 
		for(index=0;index<MaxEventAmount;index++)
		{ 
			if(AppEventArray[index]==event)
			AppEventArray[index] = System_NoneEvent;
		}
	}		
	//AppEventArray &= (~event);
}

前面已经将框架的准备工作做好了，接下来就是搭建框架！

 
uint32_t AppEventSystem(uint32_t event)
{ 
	uint32_t RetainEvent=0;
	if(event==System_InitEvent)
	{  
        
		APP_SetEvent(Main1_ShowEvent);
		RetainEvent=event;
		MenuChoose=UiID_None;
	}
	return 	RetainEvent;
}
 
uint32_t AppEventMain1(uint32_t event)
{ 
	uint32_t RetainEvent=0;
	if(event==Main1_ShowEvent)
	{ 
		StopAppGifTimer();
		
		StartAppGifTimer(AppIDChoose,t_time_GIF,Main1_ShowGifEvent,1);
		RetainEvent=event;
		ClearGifCnt();
		MenuChoose=UiID_Main1;
	}		
	if(event==Main1_ShowGifEvent)
	{     
		
		RetainEvent=event;
		MenuChoose=UiID_Main1;	
	}	
	return 	RetainEvent;
}
 
uint32_t AppEventMain2(uint32_t event)
{ 
	uint32_t RetainEvent=0;
	if(event==Main2_ShowEvent)
	{ 
		StopAppGifTimer();
				
		StartAppGifTimer(AppIDChoose,t_time_GIF,Main2_ShowGifEvent,1);
		RetainEvent=event;
		ClearGifCnt();
		MenuChoose=UiID_Main2;
	}		
	if(event==Main2_ShowGifEvent)
	{     
		
		RetainEvent=event;
		MenuChoose=UiID_Main2;	
	}	
	return 	RetainEvent;
}
 
uint32_t AppEventMain3(uint32_t event)
{ 
	uint32_t RetainEvent=0;
	if(event==Main3_ShowEvent)
	{ 
		StopAppGifTimer();
		
		StartAppGifTimer(AppIDChoose,t_time_GIF,Main3_ShowGifEvent,1);
		RetainEvent=event;
		ClearGifCnt();
		MenuChoose=UiID_Main3;
	}		
	if(event==Main3_ShowGifEvent)
	{     
		
		RetainEvent=event;
		MenuChoose=UiID_Main3;	
	}
	return 	RetainEvent;
}
 
uint32_t AppEventMain4(uint32_t event)
{ 
	uint32_t RetainEvent=0;
	if(event==Main4_ShowEvent)
	{ 
		StopAppGifTimer();
		
		StartAppGifTimer(AppIDChoose,t_time_GIF,Main4_ShowGifEvent,1);
		RetainEvent=event;
		ClearGifCnt();
		MenuChoose=UiID_Main4;
	}		
	if(event==Main4_ShowGifEvent)
	{     
		
		RetainEvent=event;
		MenuChoose=UiID_Main4;	
	}
	return 	RetainEvent;
}
 
uint32_t AppEventTimer(uint32_t event)
{ 
	uint32_t RetainEvent=0;
	if(event==Timer_GifEvent)
	{ 
		app_gif_timer_evt();
		RetainEvent=event;
	}
	return 	RetainEvent;
}
 
void AppEventMainLoop(void)
{ 
	uint32_t RetainEvent=0;
	uint32_t GetEvent = APP_GetFirstEvent();

	if(GetEvent!=0)
	{ 
		AppIDChoose = SystemEventMask(GetEvent);
		if(AppID_System == AppIDChoose){ 	  //System
			RetainEvent = AppEventSystem(GetEvent);
		}else if(AppID_Main1 == AppIDChoose){  //Main1
			RetainEvent = AppEventMain1(GetEvent);
		}else if(AppID_Main2 == AppIDChoose){  //Main2
			RetainEvent = AppEventMain2(GetEvent);
		}else if(AppID_Main3 == AppIDChoose){  //Main3
			RetainEvent = AppEventMain3(GetEvent);
		}else if(AppID_Main4 == AppIDChoose){  //Main4
			RetainEvent = AppEventMain4(GetEvent);
		}else if(AppID_Timer == AppIDChoose){  //GIF_timer
			RetainEvent = AppEventTimer(GetEvent);
		}
		APP_ClearEvent(RetainEvent);
	}
}

 
void AppKeyMianLoop(void)
{ 
	if(KeyPressFlag)//中断里面，按键按下就置一
	{  
		if(SystemFlag)//系统运行标志位
		{ 
			APP_SetEvent(System_InitEvent);
			AppKeyClearEvent(KeyPressFlag);
			if(UiID_Main1==MenuChoose)
			APP_SetEvent(Main2_ShowEvent);
			else if(UiID_Main2==MenuChoose)
			APP_SetEvent(Main3_ShowEvent);
			else if(UiID_Main3==MenuChoose)
			APP_SetEvent(Main4_ShowEvent);
			else if(UiID_Main4==MenuChoose)
			APP_SetEvent(Main1_ShowEvent);
		}
		AppKeyClearEvent(KeyPressFlag);
	}
}