AT91SAM9260-EK Atmel, AT91SAM9260-EK Datasheet - Page 4

• 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

3.2
Figure 3-2.
4
NAND Flash Boot Recovery
Application Note
NAND Flash Recovery Procedure in the board/at91sam9260ek/at91sam9260ek.c file
#endif
}
F i g u r e
board/at91sam9260ek/at91sam9260ek.c file.
The same algorithm can be implemented in a custom bootstrap application.
/* Configure PIOs */
const struct
};
/* Configure the PIO controller */
writel((1 << AT91C_ID_PIOA), PMC_PCER + AT91C_BASE_PMC);
pio_setup(bp4_pio);
/* If BP4 is pressed during Boot sequence */
/* Erase NandFlash block 0*/
if
Jump to the application
Transfer NAND Flash
contents in SDRAM
3 - 2
( !pio_get_value(AT91C_PIN_PA(31)) )
No
in SDRAM
Initialization
Button Pressed
Hardware
{"BP4", AT91C_PIN_PA(31), 0, PIO_PULLUP, PIO_INPUT},
{(char
df_page_erase(pDf, 0);
Start
s h o w s
pio_desc bp4_pio[] = {
*) 0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
N A N D
Yes
F l a s h
Power-Up reset
Erase the first
NAND flash
block of the
Wait for
r e c o v e r y
p r o c e d u r e
6281A–ATARM–16-Nov-06
i n
t h e