单片机接收主机的数据,然后将数据传送到P0口, 并传回给主机 单片机是8951

				### uVision2 Project, (C) Keil Software
				### Do not modify !
				
				Target (Target 1), 0x0000 // Tools: 'MCS-51'
				
				Group (Source Group 1)
				
				File 1,1, 0x0 
				
				
				Options 1,0,0  // Target 'Target 1'
				 Device (89C51)
				 Vendor (Atmel)
				 Cpu (IRAM(0 - 0x7F) IROM(0 - 0xFFF) CLOCK(24000000))
				 FlashUt ()
				 StupF ()
				 FlashDR ()
				 DevID ()
				 Rgf (AT89X51.H)
				 Mem ()
				 C ()
				 A ()
				 RL ()
				 OH ()
				 DBC_IFX ()
				 DBC_CMS ()
				 DBC_AMS ()
				 DBC_LMS ()
				 UseEnv=0
				 EnvBin ()
				 EnvInc ()
				 EnvLib ()
				 EnvReg (