u_led.uv2

在keil平台上面用汇编语言编写的世界上最简单的51PWM控制小灯程序 编译后代码只有30字节 可以用于测试单片机的最小程序

### uVision2 Project, (C) Keil Software
### Do not modify !

Target (Target 1), 0x0000 // Tools: 'MCS-51'

Group (Source Group 1)

File 1,2,<.\u_led.asm><u_led.asm> 0x0 


Options 1,0,0  // Target 'Target 1'
 Device (STC89C51RC)
 Vendor (STC)
 Cpu (IRAM(0 - 0x7F) XRAM(0- 0xFF) IROM(0 - 0xFFF) CLOCK(25000000))
 FlashUt ()
 StupF ()
 FlashDR ()
 Rgf (REG52.H)
 Mem ()
 C ()
 A ()
 RL ()
 OH ()
 UseEnv=0
 EnvBin ()
 EnvInc ()
 EnvLib ()
 EnvReg ()
 OrgReg ()
 TgStat=24
 OutDir (.\)
 OutName (u_led)
 GenApp=1
 GenLib=0
 GenHex=1
 Debug=1
 Browse=1
 LstDir (.\)
 HexSel=0
 MG32K=0
 TGMORE=0
 RunUsr 0 0 <>
 RunUsr 1 0 <>
 BrunUsr 0 0 <>
 BrunUsr 1 0 <>
 SVCSID <>
 MODEL5=0
 RTOS5=0
 ROMSZ5=2
 DHOLD5=0
 XHOLD5=0
 T51FL=112
 CBANKS5=0
 XBANKS5=0
 RCB51 { 0,0,0,0,0,255,255,0,0 }
 RXB51 { 0,0,0,0,0,0,0,0,0 }
 OCM51 { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
 OCR51 { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
 IRO51 { 1,0,0,0,0,0,16,0,0 }
 IRA51 { 0,0,0,0,0,128,0,0,0 }
 XRA51 { 0,0,0,0,0,0,1,0,0 }
 XRA512 { 0,0,0,0,0,0,0,0,0 }
 C51FL=21630224
 C51VA=0
 C51MSC ()
 C51DEF ()
 C51UDF ()
 INCC5 ()
 AX51FL=4
 AX51MSC ()
 AX51SET ()
 AX51RST ()
 INCA5 ()
 PropFld { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
 IncBld=1
 AlwaysBuild=0
 GenAsm=0
 AsmAsm=0
 PublicsOnly=0
 StopCode=3
 CustArgs ()
 LibMods ()
 BankNo=65535
 LX51FL=292
 LX51OVL ()
 LX51MSC ()
 LX51DWN ()
 LX51LFI ()
 LX51ASN ()
 LX51RES ()
 LX51CCL ()
 LX51UCL ()
 LX51CSC ()
 LX51UCS ()
 LX51COB ()
 LX51XDB ()
 LX51PDB ()
 LX51BIB ()
 LX51DAB ()
 LX51IDB ()
 LX51PRC ()
 LX51STK ()
 LX51COS ()
 LX51XDS ()
 LX51BIS ()
 LX51DAS ()
 LX51IDS ()
  OPTDL (S8051.DLL)()(DP51.DLL)(-p53)(S8051.DLL)()(TP51.DLL)(-p53)
  OPTDBG 44029,0,()()()()()()()()()() ()()()()
 FLASH1 { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
 FLASH2 ()
 FLASH3 ()
EndOpt