AT91SAM9260-EK Atmel, AT91SAM9260-EK Datasheet - Page 6

• Manufacturer Part Number: AT91SAM9260-EK
• Description: KIT EVAL FOR AT91SAM9260
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9260-EK

• Contents: Evaluation Board, Parallel Cable and CD-ROM
• Processor To Be Evaluated: AT91SAM9260
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, USB
• Core: ARM 9
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: ARM926EJ-S
• Silicon Core Number: AT91SAM9260
• Silicon Family Name: ARM
• Kit Contents: Board, Cables, CD, Power Supply
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM9260
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4. SAM-BA Boot Recovery
4.1
4.2
4.2.1
4.2.1.1
6
Hardware Recovery
Software Recovery
Application Note
Compiling AT91bootstrap-recovery
Linux
If the customer has a wrong image programmed in NAND Flash or in DataFlash, the board can
become non-responsive even to SAM-BA.
In this situation, it is still possible to recover by erasing or disabling the DataFlash or the NAND
Flash.
It is possible to disable the Chip Select of the DataFlash and the Chip Enable of the NAND Flash
by removing discrete components on the AT91SAM9260-EK revA board.
The soldered DataFlash can be disabled on the AT91SAM9260-EK board by removing the R40
0 Ohm resistor. Location: Component side, next to the DataFlash (MN9) device.
The soldered DataFlash can be disabled on the AT91SAM9260-EK board by removing the R36
0 Ohm resistor. Location: Solder side, opposite from the NAND Flash (MN6A1) device.
Even if this hardware operation is simple, when several recoveries are necessary, software
recovery solutions should be preferred.
At91bootstrap-recovery is a small application which erases the first sector of the NAND Flash or
the DataFlash.
This application can be flashed in a DataFlash card. In this case when the DataFlash card is
detected on CS0 after power-up, the AT91Boot-ROM loads the At91bootstrap-recovery in the
internal SRAM and launches it. This recovery DataFlash card can be used several times during
the development process.
This application can also be loaded in internal SRAM using an ICE interface.
At91bootstrap-recovery has been compiled and tested under Linux using the following GNU
A R M b i n a r y d i s t r i b u t i o n w h i c h c a n b e d o w n l o a d e d f r o m t h e f o l l o w i n g U R L :
http://www.gnuarm.org
================================
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Select the Media to erase:
1 - Dataflash (CS1)
2 - Nand flash
-I- AT45DB321B detected
-I- Success: Page 0 of the dataflash is erased.
-I- Remove the dataflash card and reset.
DATAFLASH Card Recovery
6281A–ATARM–16-Nov-06