main.c

具有原始语音播放功能

//======================================================
//  The information contained herein is the exclusive property of
//  Sunnnorth Technology Co. And shall not be distributed, reproduced,
//  or disclosed in whole in part without prior written permission.
//  (C) COPYRIGHT 2003  SUNNORTH TECHNOLOGY CO.
//  ALL RIGHTS RESERVED
//  The entire notice above must be reproduced on all authorized copies.
//========================================================
//============================================================
//  工程名称： NoCompressSpeechRecord.spj
//  功能描述:  原始语音的录放。
//  文件来源：《SPCE061A单片机实验指导书》,"实验三十九　原始语音资源的存储和播放"  第136页
//  IDE环境：   SUNPLUS u'nSPTM  IDE 1.8.4
//
//  涉及的库：
//  组成文件:
//    	main.c 4096.asm isr.asm key.asm system.asm 
//===============================================

//============================================================
// 文件名称：main.c 
// 实现功能: 原始语音的录放
//============================================================

#include "hardware.h"
#include "key.h"
#define   MAX_SPEECH_ADDR      0x3E8000  //4Mbit Flash
#define   READ                 1
#define   WRITE                0
#define   NO                   0
#define   YES                  1
unsigned int uiFlagReadWrite;  //1,为读标志；0，为写标志
unsigned int uiFlagRead;       //1,有新语音数据读出；0，无新语音数据读出
unsigned int uiFlagWrite;      //1，有新语音数据采样；0，无新语音数据采样
unsigned int uiSpeechData;     //保存采样或播放的语音数据
unsigned long ulSpeechAddress; //保存采样或播放的语音数据的地址
//============================================================= 
// 函数名称:    int main()   
// 功能描述:    原始语音的录放
// 语法格式:    int main() 
//入口参数:     无
// 出口参数:    无
// 注意事项:    仅为用户模型
//=============================================================
main(){
     int iKey = 0;  
     ulSpeechAddress = 0;     
     uiSpeechData = 0;
     uiFlagReadWrite = WRITE;
     uiFlagRead =  NO;
     uiFlagWrite = NO;
     System_Init();            //系统初始化
     Init_ADC_DAC();           //录放音初始化
     SP_SIOInitial();          //spr4096端口初始化
     SP_SIOMassErase();        //整片擦除spr4096
     while(1){
        
     	iKey = SP_GetCh();     //取键值
     	switch(iKey){	 
			case 0x00:
				break;
			case 0x01:
			     uiFlagReadWrite = WRITE;       //语音录入
			     SP_SIOMassErase();
			     ulSpeechAddress = 0;     
				break;
			case 0x02:
			     uiFlagReadWrite = READ;        //语音播放	
			     ulSpeechAddress = 0;    			    		     				                
				break;		
			default:
				break;
	   }	
	   if(uiFlagReadWrite){                      //是否为语音播放
	        if(ulSpeechAddress<MAX_SPEECH_ADDR){ //是否小于4MFLASH空间
	             if(uiFlagRead){
	                 uiSpeechData = SP_SIOReadAWord(ulSpeechAddress);
	                 ulSpeechAddress += 2;
	                 uiFlagRead = NO;
	             }
	        }
	        else uiFlagReadWrite = READ;           
	   }
	   else{                                     //是否为语音录入
	       if(ulSpeechAddress<MAX_SPEECH_ADDR){  //是否小于4MFLASH空间
	             if(uiFlagWrite){
	             	SP_SIOSendAWord(ulSpeechAddress,uiSpeechData);
	             	ulSpeechAddress += 2;
	             	uiFlagWrite = NO;
	             }	        
	        }
	        else ulSpeechAddress = 0;	   
	   }
	   System_ServiceLoop();                     
	}
}