SAM9261 DF        P528              CS0
SAM9261 DataFlash Page 528 bytes on Chip Select 0

The 2-nd level Bootloader for Atmel AT91SAM9261 
running from External DataFlash (Page Size 528 
Bytes, eg. AT45DB321C) using Chip Select 0 for 
DataFlash interfacing

It downloads to first 16.5kB of DataFlash.
1-st level bootloader that is in ROM of 
AT91SAM9261 first downloads this 2-nd level 
bootloader to internal RAM and starts it.

2-nd level bootloader's main function is to 
copy user program from DataFlash to 
External SDRAM and start it.

Just select Flash -> Download to download it 
to DataFlash.

Notes:
  - to erase Bootloader just press "BP4" button 
    on the board while power-up

DataFlash Organization:

0x00000000 _ ____________________________
            |                            |
            |   2-nd Level Bootloader    |
            |                            |
0x00001000 -| - - - - - - - - - - - - - -|
            |                            |
            :  Reserved for future use   :
            :                            :
            |                            |
0x00004200 -|============================|
            |                            |
            |       User Program         |
            :                            :
            :                            :
0x00420000 _|____________________________|