Converting FlashDev.c

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Device description files provided for ULINK adapters can be converted to be used by RL-FlashFS. Two macros which must be specified in this file:

• FLASH_DEVICE macro defines the sector layout.
• FL_NSECT macro defines the number of flash sectors.

The following example shows the conversion steps for the Am29x800BT Flash Device:

1. Copy the file FlashDev.c from the folder \Keil\ARM\Flash\AM29F160DB to a subfolder of \Keil\ARM\RL\FlashFS\Flash.
2. Rename the file to FS_FlashDev.h
3. Delete the following lines:

   #include "..\FlashOS.H"       // FlashOS Structures
   
   struct FlashDevice const FlashDevice  =  {
     FLASH_DRV_VERS,             // Driver Version, do not modify!
     "AM29x800BT Flash",         // Device Name
     EXT16BIT,                   // Device Type
     0x000000,                   // Device Start Address
     0x100000,                   // Device Size in Bytes (1MB)
     1024,                       // Programming Page Size
     0,                          // Reserved, must be 0
     0xFF,                       // Initial Content of Erased Memory
     100,                        // Program Page Timeout 100 mSec
     3000,                       // Erase Sector Timeout 3000 mSec
   
   // Specify Size and Address of Sectors
   

   and the lines at the bottom:

     SECTOR_END
   };
   

4. Expand and convert the sector description to a macro FLASH_DEVICE.

     0x10000, 0x000000,          // Sector Size 64kB (14 Sectors)
   

   This line needs to be expanded to 14 lines for 14 sectors using a DFB macro. Do not forget the macro continuation sign \.

     DFB(0x10000, 0x000000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x010000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x020000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x030000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x040000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x050000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x060000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x070000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x080000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x090000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x0A0000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x0B0000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x0C0000),   /* Sector Size 64kB */    \ 
     DFB(0x10000, 0x0D0000),   /* Sector Size 64kB */    \ 
   

5. Repeat this step for each line in the file.
6. Add a macro FL_NSECT defining the number of sectors.

If everything has been done correctly, the file FS_FlashDev.h should look like this.