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Using 2 RAM segments in eCos Application
- From: Elad Yosef <elad dot yosef at gmail dot com>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Mon, 28 Mar 2011 10:54:28 +0200
- Subject: [ECOS] Using 2 RAM segments in eCos Application
Hi,
I have 2 RAM segments in my mips32 target.
The first range from 0x400 to 0x40000
The second from 0x400000 to 0x410000
I'm using the first as the TEXT RAM and the second is DATA RAM (Tested
cached and un-cached)
The sections in the TEXT RAM are:
SECTION_ROMISC (ram, 0xA0000400, LMA_EQ_VMA)
SECTION_RELOCS (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_init (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_text (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_fini (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_rodata (ram, ALIGN (0x8), LMA_EQ_VMA)
SECTION_rodata1 (ram, ALIGN (0x8), LMA_EQ_VMA)
The sections in the DATA RAM are:
SECTION_data (ram_data, 0xA0400000, LMA_EQ_VMA)
SECTION_data1 (ram_data, ALIGN (0x8), LMA_EQ_VMA)
SECTION_eh_frame (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_gcc_except_table (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_ctors (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_dtors (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_devtab (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_got (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_dynamic (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_sdata (ram_data, ALIGN (0x4), LMA_EQ_VMA)
SECTION_lit8 (ram_data, ALIGN (0x8), LMA_EQ_VMA)
SECTION_lit4 (ram_data, ALIGN (0x8), LMA_EQ_VMA)
SECTION_sbss (ram_data, ALIGN (0x8), LMA_EQ_VMA)
SECTION_bss (ram_data, ALIGN (0x8), LMA_EQ_VMA)
CYG_LABEL_DEFN(__heap1) = ALIGN (0x8);
SECTIONS_END
My application crash and prints to screen:
$T0025:00e70000;1d:901740a0;#1c
When I using only one RAM segment is works fine.
Any ideas?
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