fat16.lst

来自「用89C51SND1C实现的USB存储器的代码,包括USB通信和FLASH的读写」· LST 代码 · 共 222 行 · 第 1/2 页

  89          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,              0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,      
  90          
  91          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,              0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,      
  92          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,              0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,      
  93          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,              0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,      
  94          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,              0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,      
  95          0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,
  96          
  97          0x00,//active partion
  98          0x00,//head
  99          0x00,//partion begin
 100          0x00,//cylinder
 101          0x06,//is partion used
 102          0x00,//end head
 103          0x00,//partion end 
 104          0x00,//end cylinder
 105          0x00,0x00,0x00,0x00,
C51 COMPILER V6.23a  FAT16                                                                 11/27/2003 16:50:21 PAGE 3   

 106          0x00,0x80,0x00,0x00,//fist partion
 107          
 108          0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,              0,//second partion
 109          0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,              0,//third partion
 110          0,0,0,0,0,              0,0,0,0,0,              0,0,0,0,0,              0,//forth partion
 111          
 112          0x55,0xAA       // Offset_short int_Signature           510     //0x55AA           
 113          
 114          };
 115          
 116          
 117          void WriteMBR2Flash(void)
 118          {
 119   1              if(Check_Flash_Id()==KM29U128_ID){
 120   2              WritePage(Root_Cluster, BPB_Sector, BPB_Data);
 121   2              }
 122   1              else printu("\nKM29U128 is Not Found!");
 123   1      }
 124          
 125          void CreatFAT16(void)
 126          {
 127   1              short int i;
 128   1              unsigned char *FAT=Page_Buf;
 129   1              for(i=0;i<512;i++) FAT[i] = 0x00;
 130   1              //disk type lower byte is equal to Offset_U8_BPB_Media
 131   1              FAT[0] = 0xf8;
 132   1              FAT[1] = 0xff;//system occupied the first cluster
 133   1              FAT[2] = 0xff;
 134   1              FAT[3] = 0x7f;
 135   1              
 136   1              if(Check_Flash_Id()==KM29U128_ID){
 137   2                      WritePage(Root_Cluster,Fat_Sector,FAT); //Sector 1 of Fat16
 138   2                      WritePage(Root_Cluster,Fat_Sector+2,FAT);       //Sector 1 of Fat16
 139   2                      FAT[0]=FAT[1]=FAT[2]=FAT[3]=0x00;
 140   2                      WritePage(Root_Cluster,Fat_Sector+1,FAT);       //Sector 2 of Fat16
 141   2                      WritePage(Root_Cluster,Fat_Sector+3,FAT);       //Sector 2 of Fat16
 142   2                      }
 143   1              else printu("\nKM29U128 is Not Found!");
 144   1      }
 145          
 146          void CreatDirectoryEntry(void)
 147          {
 148   1              long int i;
 149   1              unsigned char *Directory_Enties=Page_Buf;
 150   1              for(i=0;i<512;i++)  Directory_Enties[i]= 0x00;
 151   1      
 152   1              if(Check_Flash_Id()==KM29U128_ID){
 153   2                      for(i=0;i<35;i++) {
 154   3                              WritePage(Root_Cluster+i/32,Directory_Sector+i%32,Directory_Enties);
 155   3      //                      Delay(100);
 156   3                              }
 157   2                      }       
 158   1              else printu("\nKM29U128 is Not Found!");
 159   1              
 160   1      }
 161          
 162          
 163          //函数实现
 164          void Format_Fat16Media(void)
 165          {       
 166   1              Flash_Reset();
 167   1              printu("\nFlash_Reset");
C51 COMPILER V6.23a  FAT16                                                                 11/27/2003 16:50:21 PAGE 4   

 168   1              Erase_Cluster(Root_Cluster);
 169   1              Erase_Cluster(Root_Cluster+1);
 170   1      
 171   1              printu("\nErase_Cluster");
 172   1              WriteMBR2Flash();
 173   1              printu("\nWriteMBR2Flash");
 174   1              CreatFAT16();
 175   1              printu("\nCreatFAT16");
 176   1              CreatDirectoryEntry();
 177   1          printu("\nCreatDirectoryEntry");
 178   1              }
 179          
 180          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    725    ----
   CONSTANT SIZE    =    613    ----
   XDATA SIZE       =   ----      18
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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