Part Number: TMS320F28375S
Hi,
I use the window function (CFFT_f32_win_dual) for FFT preprocessing.
The input result (FFT_Input) through this window function differs between Load Program and Load Symbol (FLASH Program).
<Load Program FLASH program>
-The value of FFT_Input becomes an appropriate value after applying the window.
<Load Symbol FLASH program>
-The value of FFT_Input becomes 0 after applying the window.
I think it is strange that the value after applying the window becomes 0.
I expand the window function to RAM, but is there any mistake in the description method of the linker command file?
<Load_Program(Before_applying_window).png>
<Load_Program(After_applying_window)>
<Load_Symbol(Before_applying_window)>
<Load_Symbol(After_applying_winodw)>
<Cmd File>
//#############################################################################
//
// FILE: F2837xD_FPU_CFFT_lnk.cmd
//
// TITLE: Linker Command File for FPU library examples that run
// on the 2837x platform
//
// This file includes all RAM and FLASH blocks present on the
// 2837x and depending on the active build configuration(RAM or FLASH)
// the appropriate sections will either be loaded into RAM or FLASH
// blocks
//
//#############################################################################
// $TI Release: C28x Floating Point Unit Library V2.03.00.00 $
// $Release Date: May 26, 2020 $
// $Copyright: Copyright (C) 2018 Texas Instruments Incorporated -
// http://www.ti.com/ ALL RIGHTS RESERVED $
//#############################################################################
// NOTES:
// 1. In addition to this memory linker command file, add the header linker
// command file directly to the project. The header linker command file is
// required to link the peripheral structures to the proper locations within
// the memory map.
//
// The header linker files are found in
// c2000\C2000Ware_X_XX_XX_XX\device_support\f2837x(d/s)\headers\cmd
//
// For BIOS applications add: F2837x(D/S)_Headers_BIOS_cpuX.cmd
// For nonBIOS applications add: F2837x(D/S)_Headers_nonBIOS_cpuX.cmd
//
// 2. On reset all RAMGSx blocks are under the mastership of CPU1. The user
// must configure the appropriate control registers to transfer mastership
// of a RAMGSx block over to CPU2
//
// 3. Memory blocks on F2837x are uniform (ie same physical memory) in both
// PAGE 0 and PAGE 1. That is the same memory region should not be defined
// for both PAGE 0 and PAGE 1. Doing so will result in corruption of program
// and/or data.
//
// Contiguous SARAM memory blocks can be combined if required to create a
// larger memory block.
//
//#############################################################################
// The following definitions will help to align the input buffer.For the complex FFT
// of size N, the input buffer must be aligned to a 4N word boundary. For a real FFT
// of size N, the input buffer must be aligned to a 2N word boundary. The user may define
// the macro either in the linker command file, as shown here, or
// through the project properties under,
// C2000 Linker -> Advanced Options -> Command File Preprocessing -> --define
--define CFFT_ALIGNMENT=512
#if !defined(CFFT_ALIGNMENT)
#error define CFFT_ALIGNMENT under C2000 Linker -> Advanced Options -> Command File Preprocessing -> --define
#endif
MEMORY
{
PAGE 0 :
/* BEGIN is used for the "boot to SARAM" bootloader mode */
#if defined(RAM)
BEGIN : origin = 0x000000, length = 0x000002
#elif defined(FLASH)
BEGIN : origin = 0x080000, length = 0x000002
#endif
RAMGS04 : origin = 0x00C000, length = 0x005000
RESET : origin = 0x3FFFC0, length = 0x000002
FLASHA : origin = 0x080002, length = 0x001FFE /* on-chip Flash */
FLASHC : origin = 0x084000, length = 0x002000 /* on-chip Flash */
FLASHD : origin = 0x086000, length = 0x002000 /* on-chip Flash */
FLASHE : origin = 0x088000, length = 0x008000 /* on-chip Flash */
FLASHF : origin = 0x090000, length = 0x008000 /* on-chip Flash */
FLASHG : origin = 0x098000, length = 0x008000 /* on-chip Flash */
FLASHH : origin = 0x0A0000, length = 0x008000 /* on-chip Flash */
FLASHI : origin = 0x0A8000, length = 0x008000 /* on-chip Flash */
FLASHJ : origin = 0x0B0000, length = 0x008000 /* on-chip Flash */
FLASHK : origin = 0x0B8000, length = 0x002000 /* on-chip Flash */
FLASHL : origin = 0x0BA000, length = 0x002000 /* on-chip Flash */
FLASHM : origin = 0x0BC000, length = 0x002000 /* on-chip Flash */
FLASHN : origin = 0x0BE000, length = 0x002000 /* on-chip Flash */
PAGE 1 :
BOOT_RSVD : origin = 0x000002, length = 0x000120 /* Part of M0, BOOT rom will use this for stack */
RAMM0 : origin = 0x000122, length = 0x0002DE
RAMM1 : origin = 0x000400, length = 0x000400
RAMD01 : origin = 0x00B000, length = 0x001000
RAMLS012345 : origin = 0x008000, length = 0x003000
RAMGS515 : origin = 0x011000, length = 0x00B000
FLASHB : origin = 0x082000, length = 0x002000 /* on-chip Flash */
}
SECTIONS
{
codestart : > BEGIN, PAGE = 0
#if defined(RAM)
.TI.ramfunc : > RAMGS04, PAGE = 0
.text : > RAMGS04, PAGE = 0
.cinit : > RAMGS04, PAGE = 0
.pinit : > RAMGS04, PAGE = 0
.switch : > RAMGS04, PAGE = 0
.econst : > RAMLS012345, PAGE = 1
//FFT Table
FPUfftTables : > RAMLS012345, PAGE = 1
#elif defined(FLASH)
.TI.ramfunc :
{
*(.TI.ramfunc)
c28x_fpu_dsp_library_coff.lib<CFFT_f32t.obj>(.text) //coff�̃��C�u������I����Ȃ��Ə������x���x��
c28x_fpu_dsp_library_coff.lib<CFFT_f32_phase_TMU0.obj>(.text)
c28x_fpu_dsp_library_coff.lib<CFFT_f32_mag_TMU0.obj>(.text)
c28x_fpu_dsp_library_coff.lib<CFFT_f32_win.obj>(.text)
}
LOAD = FLASHC,
RUN = RAMGS04,
RUN_START(_RamfuncsRunStart),
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
PAGE = 0
.text : > FLASHE, PAGE = 0
.cinit : > FLASHC, PAGE = 0
.pinit : > FLASHC, PAGE = 0
.switch : > FLASHC, PAGE = 0
.econst : > FLASHB, PAGE = 1
//FFT Table
FPUfftTables : LOAD = FLASHB,
RUN = RAMLS012345,
RUN_START(_FFTTwiddlesRunStart),
LOAD_START(_FFTTwiddlesLoadStart),
LOAD_SIZE(_FFTTwiddlesLoadSize),
PAGE = 1,
{
--library=c28x_fpu_dsp_library_coff.lib<CFFT_f32_twiddleFactors.obj> (FPUfftTables)
}
#else
#error Add either "RAM" or "FLASH" to C2000 Linker -> Advanced Options -> Command File Preprocessing -> --define
#endif //RAM
ramgs515 : > RAMGS515, PAGE = 1
//FFT
CFFT_In_data : > RAMGS515, PAGE = 1, ALIGN = CFFT_ALIGNMENT
CFFT_Out_data : > RAMGS515, PAGE = 1
CFFT_Window_data : > RAMGS515, PAGE = 1
CFFT_Diff_Window_data : > RAMGS515, PAGE = 1
Back_Ground_CFFT_data : > RAMGS515, PAGE = 1
Long_Range_CFFT_data : > RAMGS515, PAGE = 1
Long_Range_CFFT_Abs_data : > RAMGS515, PAGE = 1
Long_Range_CFFT_Abs_Ave_data : > RAMGS515, PAGE = 1
Short_Range_CFFT_Mag_data : > RAMGS515, PAGE = 1
Short_Range_CFFT_Phase_data : > RAMGS515, PAGE = 1
D_CFFT_In_data : > RAMGS515, PAGE = 1, ALIGN = CFFT_ALIGNMENT
D_CFFT_In_Temp_data : > RAMGS515, PAGE = 1, ALIGN = CFFT_ALIGNMENT
D_CFFT_Out_data : > RAMGS515, PAGE = 1
D_CFFT_Abs_Out_data : > RAMGS515, PAGE = 1
Usb_TxBuffer : > RAMGS515, PAGE = 1
//TEST Data
CFFT_Test_data : > RAMGS515, PAGE = 1, ALIGN = CFFT_ALIGNMENT
FPUmathTables : > RAMLS012345, PAGE = 1
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */
.cio : > RAMD01, PAGE = 1
.sysmem : > RAMD01, PAGE = 1
.stack : > RAMM1, PAGE = 1
.ebss : > RAMD01, PAGE = 1
.esysmem : > RAMD01, PAGE = 1
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
Thanks in advance.
