C51 COMPILER V6.20c  FLASH                                                                 11/28/2002 23:26:59 PAGE 1   


C51 COMPILER V6.20c, COMPILATION OF MODULE FLASH
OBJECT MODULE PLACED IN FLASH.OBJ
COMPILER INVOKED BY: E:\WIN98\HARDWARE\KEIL620\C51\BIN\C51.EXE FLASH.C DB OE SMALL ROM(LARGE) 

stmt level    source

   1          
   2          #include "FLASH.H"
   3          #include "HAL.H"
   4          #include "USBD12.H"
   5          #include "VDOR.H"
   6          
   7          extern unsigned char idata GenBuf[GENBUF_LENGH];
   8          extern CODE_DATA idata CodeData;
   9          
  10          void FlashDisableSDP(void)
  11          {
  12   1      	// 1st command
  13   1      	outportb(0x5555, 0xaa);
  14   1      	// 2nd command
  15   1      	outportb(0x2aaa, 0x55);
  16   1      	// 3th command
  17   1      	outportb(0x5555, 0x80);
  18   1      	// 4th command
  19   1      	outportb(0x5555, 0xaa);
  20   1      	// 5th command
  21   1      	outportb(0x2aaa, 0x55);
  22   1      	// 6th command
  23   1      	outportb(0x5555, 0x20);
  24   1      }
  25          
  26          void FlashGetSPMI(unsigned char nMID, unsigned char nDID)
  27          {
  28   1      	ENABLE_FLASH;
  29   1      
  30   1      	// 1st command
  31   1      	outportb(0x5555, 0xaa);
  32   1      	// 2nd command
  33   1      	outportb(0x2aaa, 0x55);
  34   1      	// 3th command
  35   1      	outportb(0x5555, 0x90);
  36   1      	// Pause 10 ms
  37   1      	DelayMs(10);
  38   1      	// Get manufaturer code
  39   1      	nMID = inportb(0);
  40   1      	// Get device ID code
  41   1      	nDID = inportb(1);
  42   1      	// 4th command
  43   1      	outportb(0x5555, 0xaa);
  44   1      	// 5th command
  45   1      	outportb(0x2aaa, 0x55);
  46   1      	// 6th command
  47   1      	outportb(0x5555, 0xf0);
  48   1      	// Pause 10 ms
  49   1      	DelayMs(10);
  50   1      
  51   1      	DISABLE_FLASH;
  52   1      }
  53          
  54          void FlashCHipErase(void)
  55          {
C51 COMPILER V6.20c  FLASH                                                                 11/28/2002 23:26:59 PAGE 2   

  56   1      	DISABLE_FLASH;
  57   1      	// Pause
  58   1      	Delay(10);
  59   1      	// 1st 0xaa -> 0x5555
  60   1      	ENABLE_FLASH;
  61   1      	outportb(0x5555, 0xaa);
  62   1      	DISABLE_FLASH;
  63   1      	// 2nd 0x55 -> 0x2aaa
  64   1      	ENABLE_FLASH;
  65   1      	outportb(0x2aaa, 0x55);
  66   1      	DISABLE_FLASH;
  67   1      	// 3rd 0x80 -> 0x5555
  68   1      	ENABLE_FLASH;
  69   1      	outportb(0x5555, 0x80);
  70   1      	DISABLE_FLASH;
  71   1      	// 4th 0xaa -> 0x5555
  72   1      	ENABLE_FLASH;
  73   1      	outportb(0x5555, 0xaa);
  74   1      	DISABLE_FLASH;
  75   1      	// 5th 0x55 -> 0x2aaa
  76   1      	ENABLE_FLASH;
  77   1      	outportb(0x2aaa, 0x55);
  78   1      	DISABLE_FLASH;
  79   1      	// 6th 0x10 -> 0x5555
  80   1      	ENABLE_FLASH;
  81   1      	outportb(0x5555, 0x10);
  82   1      	DISABLE_FLASH;
  83   1      	// Pause 20 ms
  84   1      	DelayMs(20);
  85   1      }
  86          
  87          unsigned char FlashWrite(unsigned char idata* pSrc, unsigned char xdata* pDst, unsigned char nLen)
  88          {
  89   1      	unsigned char i, j;
  90   1      
  91   1      	// performs 3 steps of SDP sequence
  92   1      	// 1st 0xaa -> 0x5555
  93   1      	ENABLE_FLASH;
  94   1      	outportb(0x5555, 0xaa);
  95   1      	DISABLE_FLASH;
  96   1      	// 2nd 0x55 -> 0x2aaa
  97   1      	ENABLE_FLASH;
  98   1      	outportb(0x2aaa, 0x55);
  99   1      	DISABLE_FLASH;
 100   1      	// 3rd 0xa0 -> 0x05555
 101   1      	ENABLE_FLASH;
 102   1      	outportb(0x5555, 0xa0);
 103   1      	DISABLE_FLASH;
 104   1      
 105   1      	// First, Write every bytes in GenBuf to the flash
 106   1      	for(i=0; i<nLen; i++)
 107   1      	{
 108   2      		ENABLE_FLASH;
 109   2      		outportb(pDst + i, *(pSrc + i));
 110   2      		DISABLE_FLASH;
 111   2      	}
 112   1      
 113   1      	// Pause 20 ms for programming cycle
 114   1      	DelayMs(200);
 115   1      	
 116   1      	return j;
 117   1      }
C51 COMPILER V6.20c  FLASH                                                                 11/28/2002 23:26:59 PAGE 3   

 118          
 119          void FlashRead(unsigned char xdata* pSrc, unsigned char idata* pDst, unsigned char nLen)
 120          {
 121   1      	unsigned char i;
 122   1      
 123   1      	ENABLE_FLASH;
 124   1      	for(i=0; i<nLen; i++)
 125   1      		*(pDst + i) = inportb(pSrc + i);
 126   1      
 127   1      	DISABLE_FLASH;
 128   1      	
 129   1      }
 130          
 131          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    425    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      11
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)