keybmpos.c

ucgui3.90在44b0上的移植

//************************************************************************************
// File Name:	KeyBmpOs
// Function:
// writer:      hu jun lai
// Date:        2005-02-23
//************************************************************************************
#include "includes.h"

//************************************************************************************
//                              CONSTANTS
//************************************************************************************
#define TASK_STK_SIZE	512

//************************************************************************************
//                              FUNCTION PROTOTYPES
//************************************************************************************

void TaskStart(void *pdata);
void DemoTask(void *pdata);

extern void	KeyScanTask (void *pdata);

extern const GUI_BITMAP bmc1;

//************************************************************************************
//                              VARIABLES
//************************************************************************************
OS_STK		TaskStartStk	[TASK_STK_SIZE];
OS_STK		KeyScanTaskStk	[TASK_STK_SIZE];
OS_STK		KeyTestTaskStk	[TASK_STK_SIZE];
OS_STK   	DemoTaskStk	[TASK_STK_SIZE];

OS_EVENT 	*UartSemPtr;
extern OS_EVENT *KeySemPtr;
OS_EVENT 	*MsgOfKeySemPtr;	// 用于任务间的消息传递

//************************************************************************************
//				DemoTask
//************************************************************************************
void DemoTask(void *pdata)
{
        U8 	err;
	void 	*msg;

	pdata = pdata;
        WM_SelectWindow(0);
	GUI_Clear();
	GUI_DrawBitmap(&bmc1,0,0);

	while(1){
		msg = OSMboxPend(MsgOfKeySemPtr, 0, &err);
		OSSemPend(UartSemPtr, 0, &err);
		Uart_Printf("msg = %d\n", msg);
		OSSemPost(UartSemPtr);
		switch(msg)
			{
			case 1: GUI_DispStringAt("The 1st Key Pressed",0,0);
				break;
			case 2: GUI_DispStringAt("The 2nd Key Pressed",0,0);
				break;
			case 3: GUI_DispStringAt("The 3rd Key Pressed",0,0);
				break;
			case 4: GUI_DispStringAt("The 4th Key Pressed",0,0);
				break;
			default:GUI_DispStringAt("No Key Pressed!!",0,0);
				break;
			}
		}
}

//************************************************************************************
//				TaskStart
// Description	: Startup Task
// Arguments	:
// Returns	:
//************************************************************************************
void TaskStart(void *pdata)
{
	U8 	err;

	pdata = pdata;			// avoid compiler warnning ......

	SysTmrInit();			// Init INT mode and tmr0
	SysTmrEnable();			// Enable the tmr0
	OSStatInit();			// Initialize uC/OS-II's statistics
	while(1){
		OSCtxSwCtr = 0;		// Clear context counter
		OSSemPend(UartSemPtr, 0, &err);
		Uart_Printf("++++++++++++++++++++++++++++++++++++++ ");
		Uart_Printf("OSCPUUsage = %d%% \n",OSCPUUsage);
		OSSemPost(UartSemPtr);
		OSTimeDlyHMSM(0,0,1,0);	// Delay 1s
		}
}
/*
**************************************************************************************
*				KeyTestTask()
* Function:  	按一下键,显示一幅图片,点亮相应的二极管
* Returns:     	None
**************************************************************************************
*/
void KeyTestTask(void *pdata)
{
	U8	code;
	pdata  = pdata;

	rPDATE |= 0xf0;					// 4 LEDs off
	while(1){
		code = KeyGetKey(0);
                switch(code)
                        {
                        case 0: rPDATE &= 0x1ef;	// D16/PE4
                		OSMboxPost(MsgOfKeySemPtr, (void *)1);
                                break;
                        case 1: rPDATE &= 0x1df; 	// D15/PE5
                		OSMboxPost(MsgOfKeySemPtr, (void *)2);
                                break;
                        case 2:	rPDATE &= 0x1bf;  	// D14/PE6
                		OSMboxPost(MsgOfKeySemPtr, (void *)3);
                                break;
                        case 3: rPDATE &= 0x17f;  	// D13/PE7
                		OSMboxPost(MsgOfKeySemPtr, (void *)4);
                                break;
                        default:rPDATE |= 0xf0;  	// LED OFF
                        	break;
                        }
		OSTimeDly(20);				// delay 1 clock tick
                rPDATE |= 0xf0;  			// 4 LEDs OFF
		OSTimeDly(2);				// delay 1 clock tick
		}
}
//************************************************************************************
//				Main
//************************************************************************************
void Main(void)
{
	char 	TaskID0	= '0';				// TaskStart
  	char	TaskID3 = '1';				// KeyTestTask
	char 	TaskID1 = '2';				// DemoTask

	SysInit();					// Initialize system board
	GUI_Init();					// Initial GUI

	OSInit();					// Initialize operation system
	OSTimeSet(0);					// set SysTick 0
	KeyInit();
	UartSemPtr  = OSSemCreate(1);
	MsgOfKeySemPtr  = OSMboxCreate((void *)0);

	OSTaskCreate(TaskStart,  (void *)&TaskID0, &TaskStartStk  [TASK_STK_SIZE -1],0);
	OSTaskCreate(KeyTestTask,(void *)&TaskID3, &KeyTestTaskStk[TASK_STK_SIZE -1],41);
	OSTaskCreate(DemoTask,   (void *)&TaskID1, &DemoTaskStk   [TASK_STK_SIZE -1],42);
	OSStart();
}