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Discussion Groups | AT91SAM ARM | Dataflash downloaded code constraint
For users of the Atmel AT91SAM7 and AT91SAM9 ARM CPU chips. Atmel has taken a new direction by combining on chip flash and ram with the ARM CPU on a single die. This provides low cost devices for small systems using the ARM CPU. This group is to exchange information to help users get started and learn how to use the devices.
Dataflash downloaded code constraint - "ICLI, Bekir (EXT)" - Jun 3 5:22:01 2008
Hi all,
I've seen in the manual of AT91SAM9RL64 such a statement:
"The SD Card, NAND Flash and DataFlash downloaded code size must be
inferior to 56 K bytes."
Why cannot I use the remaining 12K, given the fact that internal SRAM
size is 64K?
Best,
Bekir
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
I've seen in the manual of AT91SAM9RL64 such a statement:
"The SD Card, NAND Flash and DataFlash downloaded code size must be
inferior to 56 K bytes."
Why cannot I use the remaining 12K, given the fact that internal SRAM
size is 64K?
Best,
Bekir
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
RE: Dataflash downloaded code constraint - Pavel Bazika - Jun 3 6:54:47 2008
Because these 12K is reserved for level one bootloader program, which
browses external memories, detects and downloads your code from flash to
RAM.
S pozdravem
Ing. Pavel Bazika
ConTeK, spol. s r.o.
_____
From: A...@yahoogroups.com [mailto:A...@yahoogroups.com] On Behalf Of
ICLI, Bekir (EXT)
Sent: Tuesday, June 03, 2008 11:22 AM
To: A...@yahoogroups.com
Subject: [AT91SAM] Dataflash downloaded code constraint
Hi all,
I've seen in the manual of AT91SAM9RL64 such a statement:
"The SD Card, NAND Flash and DataFlash downloaded code size must be inferior
to 56 K bytes."
Why cannot I use the remaining 12K, given the fact that internal SRAM size
is 64K?
Best,
Bekir
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
browses external memories, detects and downloads your code from flash to
RAM.
S pozdravem
Ing. Pavel Bazika
ConTeK, spol. s r.o.
_____
From: A...@yahoogroups.com [mailto:A...@yahoogroups.com] On Behalf Of
ICLI, Bekir (EXT)
Sent: Tuesday, June 03, 2008 11:22 AM
To: A...@yahoogroups.com
Subject: [AT91SAM] Dataflash downloaded code constraint
Hi all,
I've seen in the manual of AT91SAM9RL64 such a statement:
"The SD Card, NAND Flash and DataFlash downloaded code size must be inferior
to 56 K bytes."
Why cannot I use the remaining 12K, given the fact that internal SRAM size
is 64K?
Best,
Bekir
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )