main.c

S3C44B0X全套培训资料及源代码 e008s3c44b0x

#include"..\ucos-ii\includes.h"               /* uC/OS interface */
#include "..\ucos-ii\add\osaddition.h"
#include "..\inc\drv.h"
#include <string.h>
unsigned char MykeyBoard_KeyMap[]={1,4,7,10,2,5,8,0,3,6,9,11,12,13,14,15};//10-退格,11-*/.,12-↑,13-↓,14-确定,15-取消
U16 MyGetScanKey();
U32 MyGetKey();
void onKey(int nkey, int fnkey);

///******************任务定义***************///

OS_STK Main_Stack[STACKSIZE*8]={0, };   //Main_Test_Task堆栈
void Main_Task(void *Id);             //Main_Test_Task
#define Main_Task_Prio     12

OS_STK Led_Flash_Stack[STACKSIZE]= {0, }; //LED闪烁任务堆栈
void Led_Flash_Task(void *Id);            //LED闪烁任务
#define Led_Flash_Prio           60

OS_STK My_Key_Scan_Stack[STACKSIZE]={0, };   //Key_Test_Task堆栈
void My_Key_Scan_Task(void *Id);             //键盘扫描任务
#define MyKey_Scan_Task_Prio      58

/**************已经定义的OS任务*************
#define Touch_Screen_Task_Prio		9
#define Main_Task_Prio     12
#define Key_Scan_Task_Prio      58
#define Lcd_Fresh_prio           59
#define Led_Flash_Prio           60

***************************************/////////



///*****************事件定义*****************///

OS_EVENT *Nand_Rw_Sem;                   //Nand_Flash读写控制权旗语
//and you can use it as folloeing:
//    Nand_Rw_Sem=OSSemCreate(1);        //创建Nand-Flash读写控制权旗语,初值为1满足互斥条件//
//    OSSemPend(Nand_Rw_Sem,0,&err);
//    OSSemPost(Nand_Rw_Sem);

OS_EVENT *Uart_Rw_Sem;                   //Uart读写控制权旗语
//and you can use it as folloeing:
//    Uart_Rw_Sem=OSSemCreate(1);        //创建Uart读写控制权旗语,初值为1满足互斥条件//
//    OSSemPend(Uart_Rw_Sem,0,&err);
//    OSSemPost(Uart_Rw_Sem);


//////////////////////////////////////////////////////////

void Led_Flash_Task(void *Id)//指示RTOS处于正常工作中
{
  unsigned char led_state;
  Uart_Printf(0,"\n10");
  for (;;)
  {
    Led_Display(led_state);
    led_state=~led_state;
    OSTimeDly(250);
  }
}//Led_Flash_Task

void My_Key_Scan_Task(void *Id)//指示RTOS处于正常工作中
{
	U32 key;
	u32 tempkey=0;
       
	POSMSG pmsg;
	Uart_Printf("begin key task \n");
	for (;;){
		key=MyGetKey();
		key&=0x000f;
		if(key>9){
			Uart_SendByte(0,0x31);
			tempkey=key-10;
			Uart_SendByte(0,tempkey|=0x0030);
			}
		else
	      	Uart_SendByte(0,key|0x0030);
	      	Uart_Printf(",");
		pmsg=OSCreateMessage(NULL, OSM_KEY,key,key);
		if(pmsg)
			SendMessage(pmsg);
	}
}


void initOSGUI()	//初始化操作系统的图形界面
{
	initOSMessage();
	initOSList();
	initOSDC();
	initOSCtrl();
	initOSFile();
}
/////////////////////////////////////////////////////
//                  Main function.                //
////////////////////////////////////////////////////

int Main(int argc, char **argv)
{

	ARMTargetInit();        // do target (uHAL based ARM system) initialisation //

	OSInit();               // needed by uC/OS-II //
	uHALr_ResetMMU();

	LCD_Init();             //初始化LCD模块
	LCD_printf("LCD initialization is OK\n");
	LCD_printf("320 x 240  Text Mode\n");

	LoadFont();
	LoadConfigSys();
	
  // create the tasks in uC/OS and assign increasing //
  // priorities to them so that Task3 at the end of  //
  // the pipeline has the highest priority.          //
	LCD_printf("Create task on uCOS-II...\n");
	OSTaskCreate(Main_Task,  (void *)0,  (OS_STK *)&Main_Stack[STACKSIZE*8-1],  Main_Task_Prio);// 1
	OSTaskCreate(Led_Flash_Task,  (void *)0,  (OS_STK *)&Led_Flash_Stack[STACKSIZE-1],  Led_Flash_Prio  );// 10

       OSTaskCreate(My_Key_Scan_Task,  (void *)0,  (OS_STK *)&My_Key_Scan_Stack[STACKSIZE-1],  MyKey_Scan_Task_Prio  );

	OSAddTask_Init();
  
	LCD_printf("Starting uCOS-II...\n");
	LCD_printf("Entering graph mode...\n");
	LCD_ChangeMode(DspGraMode);

	initOSGUI();
	InitRtc();
	
	Nand_Rw_Sem=OSSemCreate(1);   //创建Nand-Flash读写控制权旗语,初值为1满足互斥条件//

	
	ARMTargetStart();       //Start the (uHAL based ARM system) system running //

	OSStart();              // start the game //

	// never reached //
	return 0;
}//main



//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void Main_Task(void *Id)             //Main_Test_Task
{
      POSMSG pMsg=0;
      LCD_ChangeMode(DspTxtMode);
      LCD_Cls();

	for(;;){
		
              pMsg=WaitMessage(0); //等待消息
		switch(pMsg->Message){
		case OSM_KEY:
			onKey(pMsg->WParam,pMsg->LParam);
			break;
		Delay(200);
		}
		DeleteMessage(pMsg);//删除消息,释放资源
	}

}

U16 MyGetScanKey()
{
	U16 key;
	U32 i,temp;
	for(i=1;i<0x10;i<<=1){
		rPDATE|=0xf0;
		rPDATE&=~(i<<4);
		key<<=4;
		OSTimeDly(1);
		temp=rPDATC;
		key|=(temp&0xf);
	}
	return key;
}
U32 MyGetKey()
{
	int i;
	U16 key,tempkey=1;
	static U16 oldkey=0xffff;
	static U8 keystatus=0;
	U8 keycnt=0;
	while(1){
		key=0xffff;
		while(1){
			key=MyGetScanKey();
			if(key!=0xffff)
				break;
			OSTimeDly(20);
			oldkey=0xffff;
		}
		OSTimeDly(50);
		if(key!=MyGetScanKey())
			continue;

		if(oldkey!=key){
			keystatus=0;
		}
		if(keystatus==0){	//第一次按下此键
			keycnt=0;
			keystatus=1;
		}
		else if(keystatus==1){	//第二次重复此键
			keycnt++;
			if(keycnt==20)
				keystatus=2;
			else
				continue;
		}

		oldkey=key;
		break;
	}
	
	for(i=0;i<16;i++){	//查找按键，不包括功能键
		if((key&tempkey)==0)
			break;
		tempkey<<=1;
	}
	return MykeyBoard_KeyMap[i];
}
void onKey(int nkey, int fnkey)
{
       char temp[3];
       if(nkey>9){
			temp[0]=0x31;
			temp[1]=(nkey-10)|0x30;
			temp[2]=0;
			}
		else
			{
	       temp[0]=nkey+0x30;
	       temp[1]=0;
			}
	LCD_printf(temp);
	LCD_printf("\n");
}