FAT12_Loaderװʽ
	 ΪFLASHͨUSBMSC򣬶USBMSCƽֲפƬڣ
	 ҲҪⲿFLASHСԣⲿFLASHFAT12ļϵͳUSB_MSC.BINһļ
	 
	 Ĳ裬ҪΪFLASHFAT12дUSB_MSC.BIN
     1STC_BoardCadioµġSTC_U̡ļ
           "ֱӿõ.hex"¼ƬUSBMSCģʽ
	 2ʽ 1*
     3STC_BoardCadio\STC_U\Objects\usb_msc.bin ϽU
	 4: STC_BoardCadio\FAT12_Loader\Objects\FAT12_Loader.Hex뵥Ƭ
	    ¼ѡ40M,64KEEPROM	
//---------------------------------------------------------------------------------------- 	 
FAT12_Loaderʹ÷	 
#1
    µԴؼֱAPP

#2APPѡ
    ס/¼µԴؽAPPѡ档
    /¼ѡҪʹõAPP"="ʾAPPؽ
    ϼԶתAPP2*,ͬʱã´ĬAPP
#3: USB¼&&APP
    a:סUSBذťͽSTCUSB¼ע⣺¼ͽǵBootLoader3*
    b:ѡUSB_MSC.BINAPPأUSBMSCģʽAPPϽĿ¼
      ٴAPPؽͻῴϽȥAPP
	  
	ʱ򣬲ҪֲаUSB_MSCɾˣȻҪ°װFAT2_Loader  4*
//----------------------------------------------------------------------------------------  
FAT12_LoaderAPP
	
	ͨĿĻ϶3
	1Project->Options for Target-->Device->Off-chip-Code-memory->start0x3000
	2Project->Options for Target-->C51->ѡInterrupt vectors at address->0x3000
	3: Startup.A51дAPP֮ǰҪѡ,125иΪ"CSEG    AT   3000h"
	±룬ĻļǿԱFAT12_LoaderеAPPˡ
	
	#1# APPУҪǰ12k(ǰ24),ԼһвдᵼBootLoader𻵻쳣
    #2# KeilͨAPP޷FAT12_LoaderȷزеģȫܲBootLoader
	ͬʱFAT12_LoaderɼصAPPFAT12_LoaderͨоƬҲ޷Уʵжϣ
	ԭ򣺳ƫжȷ
	
//---------------------------------------------------------------------------------------- 	
FAT12_LoaderAPPĳ⣺
1*ʧܣʾwindows޷ʽ̻ѹͲ̣ΪFLASH⣬СоƬдųڲFLASHϣ
2*ۿżˣͣˣΪAPP⵼±ȻҲпΪAPPû漰oledȷתֻû
3*bootloader滵ô:һͺˡ㲻ôFLASHĶǺúõģԾͲøκ˾ͺ
4*ɾUSB_MSC.BIN:ɵţϽٿһݽȥܲûʶѾ˱APP,Ǿͳ׷ˡ°װFAT12_Loader	