www.pudn.com > LineIN_Filter.rar > main.c, change:2003-07-11,size:1930b

//====================================================================================== 
// 
//        The information contained herein is the exclusive property of 
//      Sunplus Technology Co. And shall not be distributed, reproduced, 
//      or disclosed in whole in part without prior written permission. 
// 
//            (C) COPYRIGHT 2001   SUNPLUS TECHNOLOGY CO. 
//                           ALL RIGHTS RESERVED 
// 
//    The entire notice above must be reproduced on all authorized copies. 
// 
 
//======================================================================================== 
//  工程名称： LineIN_Record_DigitalFilter.spj 
//  功能描述:  数字语音录放 
//				 
//  IDE环境：  	SUNPLUS unSP IDE 1.8.0 
// 
//  涉及的库：	CMacro.lib 
// 
//  组成文件:	 
//    	 		main.c 
//	                	 
//  日期:        
//=========================================================================================== 
 
extern	void	System_Initial(),SP_SIOMassErase(); 
 
unsigned	long	int	g_ulAddr; 
 
#define		M_RECORD		1 
#define		M_STOP			2 
#define		M_PLAY			4 
 
unsigned	int		g_Flag_Status; 
 
#include	"SPCE061V004.H" 
main() 
{ 
 
	unsigned	int		uiKeyValue; 
	 
	System_Initial();							//系统初始化 
 
	while(1) 
	{ 
	 	*P_Watchdog_Clear=0x1; 
	 	 
		uiKeyValue=*P_IOA_Data;					//按键扫描 
		uiKeyValue &= 0x7; 
		 
		if(uiKeyValue&0x7)						//如果有键按下则进行相应操作 
		{ 
			if(uiKeyValue&M_RECORD)				//录音键按下的操作 
			{	__asm("int	off"); 
				SP_SIOMassErase(); 
				g_Flag_Status=M_RECORD; 
				g_ulAddr=0; 
				Timer_for_Record(); 
				__asm("int	fiq"); 
			} 
			else	if(uiKeyValue&M_PLAY)		//播放键按下的操作 
			{	__asm("int	off"); 
				g_Flag_Status=M_PLAY; 
				g_ulAddr=0; 
				Timer_for_Play(); 
				__asm("int	fiq"); 
			} 
			else								//停止键按下的操作 
			{	__asm("int	off"); 
				g_Flag_Status=M_STOP; 
				g_ulAddr=0; 
				__asm("int	fiq"); 
			} 
		} 
		 
	} 
}