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Memory maping in Flash and RAM for AT91SAM7S256
- From: Arun Roy <arun dot blore at yahoo dot co dot in>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Mon, 27 Mar 2006 09:39:25 +0100 (BST)
- Subject: [ECOS] Memory maping in Flash and RAM for AT91SAM7S256
Hi all,
I am porting ecos for AT91SAM7S256.I have
written a sample code for testing the LED on the
AT91SAM7S Evaluation board. I compiled the code. And
cteated the memory map file through arm-elf-objdump.
It is giving same memory address in RAM for VMA
and LMA for .data section. I think the LMA should be
in ROM and the VMA should be in RAM, as i have build
the ecos for ROM.Is it giving correct info or i need
to modify any thing in the linker script "arm.ld"
I am sending the memory map for your reference.
7 .rom_vectors 00000040 00100000 00100000 000f782f
2**0
CONTENTS, ALLOC, LOAD, RELOC,
READONLY, CODE
8 .text 0000e8cc 00100040 00100040
000f7870 2**2
CONTENTS, ALLOC, LOAD, RELOC,
READONLY, CODE
9 .fini 00000000 0010e90c 0010e90c
0010613c 2**0
CONTENTS
10 .rodata 00000270 0010e90c 0010e90c
0010613c 2**2
CONTENTS, ALLOC, LOAD, RELOC,
READONLY, DATA
11 .rodata1 00000000 0010eb7c 0010eb7c
001063ac 2**0
CONTENTS
12 .fixup 00000000 0010eb7c 0010eb7c
001063ac 2**0
CONTENTS
13 .gcc_except_table 00000000 0010eb7c 0010eb7c
001063ac 2**0
CONTENTS
14 .fixed_vectors 00000140 00200040 00200040
001063c0 2**5
CONTENTS, READONLY
15 .data 00000368 00200180 00200180
00106500 2**2
------------------
CONTENTS, ALLOC, LOAD, RELOC, DATA
16 .bss 000042dc 002004e8 002004e8
00106870 2**4
ALLOC
17 .comment 00000534 00000000 00000000
00106870 2**0
CONTENTS, READONLY
18 .debug_ranges 00000428 00000000 00000000
00106da4 2**0
CONTENTS, RELOC, READONLY, DEBUGGING
Thanks,
Arun Roy
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