Other Parts Discussed in Thread: CCSTUDIO
Hello fellow forum friends.
I am having some difficulty allocating a block of data using a pragma directive.
The issue is the block seems to be being allocated in two places.
The first, incorrectly, is in the .cinit section,
and the second is in the section I call out in the pragma.
The .cinit section is actually larger then the 5120 words of data I want to store, because there is other constant data in the C program. If it did not include the erroneous data, it would be small enough to fit properly.
I am using Code Composer 3.3MCU. I know it is an older version, but it came with the evaluation unit I purchased.
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Following are the relevant code and CCS output snippits:
-----------------------------------------
In a routine I am writing for communication with the ADAU...
// FIle: ReadWriteADAUCode.c
#include "(some stuff)"
#pragma DATA_SECTION(adau_prog, "adauprog");
char adau_prog[] =
{
#include "adau_program_data.dat"
};
-----------------------------------------
The first few lines of adau_program_data.dat (please note this file contains 5120 bytes (or 0x1400) of info) of course, Code Composer will allocate this many 16 bit words, and I will consider packing the data to reduce storage later....
0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x18, 0x00, 0xE8, 0x01,
0xFF, 0xF2, 0x00, 0x20, 0x01,
-----------------------------------------
The relevant parts of the CMD file for the linker:
MEMORY
{
PAGE 0 :
/* Program Memory */
RAMM0 : origin = 0x000050, length = 0x0003B0
progRAM : origin = 0x008000, length = 0x000800
PAGE 1 :
/* Data Memory */
dataRAM : origin = 0x008800, length = 0x000800
FLASHCD : origin = 0x3F4000, length = 0x002000
}
SECTIONS
{
/* Allocate program areas: */
.cinit : > RAMM0, PAGE = 0
adauprog : > FLASHCD, PAGE = 1, type = NOLOAD
}
-----------------------------------------
Now the linker error message...
[Linking...] "C:\CCStudio_v3.3MCU\C2000\cgtools\bin\cl2000" -@"Debug.lkf"
<Linking>
"M:\\Standalone_EQ\\Piccolo\\CMD\\F28022_RAM_StandAlone.CMD", line 119: error:
placement fails for object ".cinit", size 0x1419 (page 0). Available ranges:
RAMM0 size: 0x3b0 unused: 0x3b0 max hole: 0x3b0
.cinit : > RAMM0, PAGE = 0
error: errors encountered during linking; "./Debug/StandAlone.out" not built
-----------------------------------------
And the relevant parts of the MAP file
******************************************************************************
TMS320C2000 Evaluation Linker PC v5.2.1
******************************************************************************
ENTRY POINT SYMBOL: "_c_int00" address: 00008346
MEMORY CONFIGURATION
name origin length used unused attr fill
---------------------- -------- --------- -------- -------- ---- --------
PAGE 0:
RAMM0 00000050 000003b0 00000000 000003b0 RWIX
progRAM 00008000 00001000 00000456 00000baa RWIX
PAGE 1:
dataRAM 00008800 00000800 00000012 000007ee RWIX
FLASHCD 003f4000 00002000 00001400 00000c00 RWIX
SECTION ALLOCATION MAP
output attributes/
section page origin length input sections
-------- ---- ---------- ---------- ----------------
.cinit 0 00000000 00001419 FAILED TO ALLOCATE
adauprog 1 003f4000 00001400 NOLOAD SECTION
003f4000 00001400 ReadWriteADAU.obj (adauprog)
GLOBAL SYMBOLS: SORTED ALPHABETICALLY BY Name
address name
-------- ----
0000838a _AdauTransfer
03f4000 _adau_prog
[85 symbols]
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