main.c

nec16位单片机读U盘播放MP3源码

#pragma sfr
#pragma NOP
#pragma DI
#pragma EI
#pragma access
#include <string.h>
#include "Common.h"
#include "Define.h"
#include "Ch375.h"
#include "Fat.h"
#include "Hpi.h"

extern unsigned char DBUF[512];
extern SYS_INFO_BLOCK  DeviceInfo;
extern FILE_INFO ThisFile;
extern FILE32_INFO ThisFile32;
extern FREE_FAT_INFO  FreeFat;
extern unsigned char  showFilename[32][11];
extern CH_RSP_BLOCK  CHRspBlock;

sreg XXGFLAGS  bXXGFlags;
unsigned int S2_count;
extern unsigned char Mp3Files;
extern unsigned char  FileReadOver   ;
extern unsigned char play_mode; 
extern unsigned char keyvld;
extern unsigned char *pShowfile;
extern unsigned char Index_song;
extern unsigned char FAT;

void main(void);
void Cpu_init(void);
extern void Key_init(void);
void Flash_chip_init(void);
void Delay_50ms(void);
void Ic2201_init(void);
void mInitSTDIO(void);
void ReadUdisk(void);
void show( char st[]);
void mShow(unsigned int showLen,unsigned  char *pShow);
extern void Key_hd(void);
extern void Key_prc(void);
extern void CH375_CMD_PORT_d_out( INT8 d_out );
extern void CH375_DAT_PORT_d_out( INT8 d_out );
extern INT8 CH375_DAT_PORT_in( );
void Cpu_init(void)
{
 //hardware initial
  OSMS=0x01;          //not devide
  //OSMS=0x00;   
  PCC=0x00;
  MM=0x17;
  IMS=0x0C6;
  MK0L=0x0ff;        //mask interrupt
  PUOL=0x6E;
  PUOH=0x10;
  P0=0x31;
  PM0=0x0c7;
  ADIS=0;
  ADM=0x01;
  P1=0x0F0;
  PM1=0x81;
  P2=0x0bf;
  PM2=0x3F;
  P3=0x80;
  PM3=0x00;
  P4=0x0FF;
  KRM=0x02;
  P5=0x00;
  PM5=0;
  P6=0x00;
  PM6=0;
  P12=0x0ff;
  PM12=0x0F8;
////////////////
// 2-wire serial I/O  set
  CSIMK0 = 1 ;
  CSIIF0 = 0 ;
  CSIM0= 0x1b;           //stop operation   serial clock is set in TCL3
  TCL3 = 0x87 ;          //serial clock is fx/4(1.25M)
  SBIC = 0x01;           //2-wire serial I/O mode MSB 
  SINT = 0x00;
//INTP1 interrupt set
  PMK1 = 1;              //disable INTP1
  PIF1 = 0;              //clear interrupt flag
  INTM0 = 0x10;          //rising edge
  PPR1 = 1;              //high priority level

  }
 /******************************/
/******************************/
/*void Flash_chip_init(void)
{
	FLASH_RESET = 0 ;
	Delay_50ms();           //flash chip reset delay
	FLASH_RESET = 1 ;
	FLASH_OE = 1 ;
	FLASH_CE = 1 ;
	
	mp3data_address.flash_addr = START_ADDRESS ;
	return;
}*/

void Ic2201_init(void)
{
      MA8201_RESET = 0 ;                                 //reset
      Delay_50ms();
      MA8201_RESET = 1 ;
      Delay_50ms();
      return;
}

void Send_usbData(unsigned char data)
{
  while(!DREQ){;}
  SBIC = 0x01;
  CSIMK0 = 0 ;
  CSIE0 = 1 ;
  BSYNC = 1 ;
  SIO0 = data;           
  BSYNC = 0 ;

}
void Delay_50ms(void)
{
	unsigned char i,j;
	for(i = 0;i<100;i++)
	    for(j=0;j<100;j++)
	     NOP();
	return;
}

void show( char st[])
{
	unsigned int i;
	i=0;
	STIF=0;
	TXS=0;
  	while(i<strlen(st))
  	{
  	while(!STIF);
  	STIF=0;
	TXS=st[i];
	i++;
  	Delay_50ms();
  	}	
}
void mShow(unsigned int showLen,unsigned  char *pShow)
{
	unsigned char showData;
	unsigned int i;
	TXS=0;
	for(i=0;i<showLen;i++)
	{     
		showData=*pShow;
		while(!STIF);
		STIF=0;
		TXS=showData;
		pShow++;
	}			
}
void main(void)
{
  Cpu_init();
  mInitSTDIO();
  P1.5=1;
  P1.6=0;
  Key_init();
  Ic2201_init();
  //Flash_chip_init();
  
/*********time1 time 10ms  *************/

  TMMK1=1     ;       /*mask timer 1 interrupt*/
  TMIF1=0     ;
  TCL1 = 0x0d ;      /*  19.5khz */
  CR10= 195 ;		/*  Timer 10 msec */
  TCE1 = 1 ;          /*start counter*/
  DI();
  P3.7=0;
  show(" start:\n");
  SBIC = 0x01;
  CSIMK0 = 0 ;
  CSIE0 = 1 ;	
  ReadUdisk();
}


unsigned char ReadData(void)
{
	#define RspBlockReadFile CHRspBlock.RspBlock.Rsp_ReadFile
	unsigned int Readlen,i;
	unsigned long len;
	if(!bXXGFlags.bits.SLAVE_IS_ATTACHED)
	{
	CHRspBlock.errcode=ERC_NODEVICE;
	return 0;
	}
	if(!ThisFile.bFileOpen)
	{
	CHRspBlock.errcode=ERC_FILENOTOPENED;
	return 0;
	}
	if(FAT!=FAT32)
	{
		ThisFile.bFileOpen=0;
		len=ThisFile.LengthInByte;
		while(len>0)
		{
	   		if(TMIF1 == 1 )
		    	{
		        	TMIF1 = 0;   
				if(S2_count!=0)
		        	{
		        		if(S2_count<3000)S2_count++;
		        		else S2_count=0;
		        	}
		       	Key_hd();
		        	Key_prc();
		    	}
			if(play_mode==PLAY)
			{	
				if((keyvld==S1_KEY) || (keyvld==S4_KEY))return 1;
				if (BUFFER_LENGTH>len)Readlen=len;
				if(RBC_Send(ThisFile.SectorPointer,1));
				else
				{
				   	show(" err1 \n");
					return 0;
				}
			 	len=len-Readlen;
				 ThisFile.SectorofCluster+=1;
				 if(ThisFile.SectorofCluster>DeviceInfo.BPB_SecPerClus-1)
				 {
				   	ThisFile.SectorofCluster=0;
				 	ThisFile.ClusterPointer=GetNextClusterNum(ThisFile.ClusterPointer);
				 	if(ThisFile.ClusterPointer>(DeviceInfo.BPB_TotSec16 / DeviceInfo.BPB_SecPerClus-2))
				 	{
				   		show(" err2 \n");
						return 0;
				 	}
				 	ThisFile.SectorPointer=FirstSectorofCluster(ThisFile.ClusterPointer);
				   }
				   else ThisFile.SectorPointer=ThisFile.SectorPointer+1;
			}
		  else if (play_mode==STOP)return 1;
		}
		ThisFile.bFileOpen=1;
	}
	else
	{
		ThisFile32.bFileOpen=0;
		len=ThisFile32.LengthInByte;
		while(len>0)
		{
	   		if(TMIF1 == 1 )
		    	{
		        	TMIF1 = 0;   
				if(S2_count!=0)
		        	{
		        		if(S2_count<3000)S2_count++;
		        		else S2_count=0;
		        	}
		       	Key_hd();
		        	Key_prc();
		    	}
			if(play_mode==PLAY)
			{	
				if((keyvld==S1_KEY) || (keyvld==S4_KEY))return 1;
				if (BUFFER_LENGTH>len)Readlen=len;
				if(RBC_Send(ThisFile32.SectorPointer,1));
				else
				{
				   	show(" err1 \n");
					return 0;
				}
			 	len=len-Readlen;
				 if(ThisFile32.SectorofCluster==DeviceInfo.BPB_SecPerClus-1)
				 {
				   	ThisFile32.SectorofCluster=0;
				 	//ThisFile32.ClusterPointer=GetNextClusterNum32(ThisFile32.ClusterPointer);
				 	ThisFile32.ClusterPointer=ThisFile32.ClusterPointer+1;
				 	if(ThisFile32.ClusterPointer>(DeviceInfo.BPB_TotSec32 /DeviceInfo.BPB_SecPerClus-2))
				 	{
				   		show(" err2 \n");
						return 0 ;
				 	}
				 	ThisFile32.SectorPointer=(ThisFile32.ClusterPointer-2)*DeviceInfo.BPB_SecPerClus+DeviceInfo.FirstDataSector;
				   }
				   else 
				   	{
					ThisFile32.SectorofCluster+=1;
				   	ThisFile32.SectorPointer=ThisFile32.SectorPointer+1;
				   	}
			}
		  else if (play_mode==STOP)return 1;
		}
		ThisFile32.bFileOpen=1;
	}
	return 1;
	#undef RspBlockReadFile
}

void ReadUdisk(void)
{
	unsigned char retStatus;
	show(" start read usb device :\n");
	retStatus=mCH375Init( );
	if(retStatus==0) show(" 375 initial ok \n");
	retStatus = mWaitInterrupt( ); 
	P3.7=1;
	if( retStatus != USB_INT_CONNECT )show(" no usb device connect! \n");
	else
	{
		show(" usb device connect ok! \n");
		retStatus=EnumMassDev();
		if(retStatus)show(" enummassDEV success:\n");
		//retStatus=GetCapacity();
		//if(retStatus)show(" getcapacity success:\n");
		retStatus=List();
		if(retStatus)
		{
			show(" list file success: \n");
			Index_song=0;
			pShowfile=showFilename[Index_song];
			Test_Lamp=0;
			while(1)
			{
				if(play_mode==PLAY)
					{
						retStatus=OpenFile( pShowfile);
						if (retStatus)
						{
						show(" openfile success: \n");
						retStatus=ReadData();
						if(!retStatus)
							{
							if(Index_song>=Mp3Files)Index_song=0;
							else Index_song++;
							pShowfile=showFilename[Index_song];								
							}
						}
						/* if(keyvld == NOKEY)
						 {
						Index_song++;
						if(Index_song>=Mp3Files)Index_song=0;
						pShowfile=showFilename[Index_song];
						 }*/
					}
				else
				{
			   		if(TMIF1 == 1 )
				    	{
				        	TMIF1 = 0;   
				        	if(S2_count!=0)
				        	{
				        		if(S2_count<3000)S2_count++;
				        		else S2_count=0;
				        	}
				       	Key_hd();
				        	Key_prc();
				    	}
   				}
			}
		}
	}
}

void mInitSTDIO(void )
{
	CSIM2=0x00;
	ASIM=0x89;                //8_data;1_stop;0_crc
	BRGC=0x8a;               //MCS=1;9600baud
	SIPS=0x00;
	PM7.0=1;
	PM7.1=0;
    	P7.1=1;
}