DSP F28069 build 出现warning ： creating output section “xxxx“ without a SECTIONS
程序员文章站
2022-07-09 17:03:21
...
现象描述
程序本身没有问题。但是会出现warnings。如上图。
解决方案
添加cmd文件 F2806x_Headers_nonBIOS.cmd
原因分析
在warnings出现的时候，project仅有一个cmd文件28069_RAM_lnk.cmd。具体内容如下
/*
// TI File $Revision: /main/3 $
// Checkin $Date: March 3, 2011 13:45:43 $
//###########################################################################
//
// FILE: 28069_RAM_lnk.cmd
//
// TITLE: Linker Command File For F28069 examples that run out of RAM
//
// This ONLY includes all SARAM blocks on the F28069 device.
// This does not include flash or OTP.
//
// Keep in mind that L0,L1,L2,L3 and L4 are protected by the code
// security module.
//
// What this means is in most cases you will want to move to
// another memory map file which has more memory defined.
//
//###########################################################################
// $TI Release: $
// $Release Date: $
//###########################################################################
*/
/* ======================================================
// For Code Composer Studio V2.2 and later
// ---------------------------------------
// 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 <base>\F2806x_headers\cmd
//
// For BIOS applications add: F2806x_Headers_BIOS.cmd
// For nonBIOS applications add: F2806x_Headers_nonBIOS.cmd
========================================================= */
/* ======================================================
// For Code Composer Studio prior to V2.2
// --------------------------------------
// 1) Use one of the following -l statements to include the
// header linker command file in the project. The header linker
// file is required to link the peripheral structures to the proper
// locations within the memory map */
/* Uncomment this line to include file only for non-BIOS applications */
/* -l F2806x_Headers_nonBIOS.cmd */
/* Uncomment this line to include file only for BIOS applications */
/* -l F2806x_Headers_BIOS.cmd */
/* 2) In your project add the path to <base>\F2806x_headers\cmd to the
library search path under project->build options, linker tab,
library search path (-i).
/*========================================================= */
/* Define the memory block start/length for the F2806x
PAGE 0 will be used to organize program sections
PAGE 1 will be used to organize data sections
Notes:
Memory blocks on F28069 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.
*/
MEMORY
{
PAGE 0 :
/* BEGIN is used for the "boot to SARAM" bootloader mode */
BEGIN : origin = 0x000000, length = 0x000002
RAMM0 : origin = 0x000050, length = 0x0003B0
RAML0_L3 : origin = 0x008000, length = 0x002000 /* RAML0-3 combined for size of .text */
/* in Example_F2806xSWPrioritezedInterrupts */
RESET : origin = 0x3FFFC0, length = 0x000002
FPUTABLES : origin = 0x3FD860, length = 0x0006A0 /* FPU Tables in Boot ROM */
IQTABLES : origin = 0x3FDF00, length = 0x000B50 /* IQ Math Tables in Boot ROM */
IQTABLES2 : origin = 0x3FEA50, length = 0x00008C /* IQ Math Tables in Boot ROM */
IQTABLES3 : origin = 0x3FEADC, length = 0x0000AA /* IQ Math Tables in Boot ROM */
BOOTROM : origin = 0x3FF3B0, length = 0x000C10
PAGE 1 :
BOOT_RSVD : origin = 0x000002, length = 0x00004E /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAML4 : origin = 0x00A000, length = 0x002000 /* on-chip RAM block L4 */
RAML5 : origin = 0x00C000, length = 0x002000 /* on-chip RAM block L5 */
RAML6 : origin = 0x00E000, length = 0x002000 /* on-chip RAM block L6 */
RAML7 : origin = 0x010000, length = 0x002000 /* on-chip RAM block L7 */
RAML8 : origin = 0x012000, length = 0x002000 /* on-chip RAM block L8 */
USB_RAM : origin = 0x040000, length = 0x000800 /* USB RAM */
}
SECTIONS
{
/* Setup for "boot to SARAM" mode:
The codestart section (found in DSP28_CodeStartBranch.asm)
re-directs execution to the start of user code. */
codestart : > BEGIN, PAGE = 0
#ifdef __TI_COMPILER_VERSION__
#if __TI_COMPILER_VERSION__ >= 15009000
.TI.ramfunc : {} > RAMM0, PAGE = 0
#else
ramfuncs : > RAMM0, PAGE = 0
#endif
#endif
.text : > RAML0_L3, PAGE = 0
.cinit : > RAMM0, PAGE = 0
.pinit : > RAMM0, PAGE = 0
.switch : > RAMM0, PAGE = 0
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */
.stack : > RAMM1, PAGE = 1
.ebss : > RAML4, PAGE = 1
.econst : > RAML4, PAGE = 1
.esysmem : > RAML4, PAGE = 1
IQmath : > RAML0_L3, PAGE = 0
IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD
/* Allocate FPU math areas: */
FPUmathTables : > FPUTABLES, PAGE = 0, TYPE = NOLOAD
DMARAML5 : > RAML5, PAGE = 1
DMARAML6 : > RAML6, PAGE = 1
DMARAML7 : > RAML7, PAGE = 1
DMARAML8 : > RAML8, PAGE = 1
/* Uncomment the section below if calling the IQNexp() or IQexp()
functions from the IQMath.lib library in order to utilize the
relevant IQ Math table in Boot ROM (This saves space and Boot ROM
is 1 wait-state). If this section is not uncommented, IQmathTables2
will be loaded into other memory (SARAM, Flash, etc.) and will take
up space, but 0 wait-state is possible.
*/
/*
IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD
{
IQmath.lib<IQNexpTable.obj> (IQmathTablesRam)
}
*/
/* Uncomment the section below if calling the IQNasin() or IQasin()
functions from the IQMath.lib library in order to utilize the
relevant IQ Math table in Boot ROM (This saves space and Boot ROM
is 1 wait-state). If this section is not uncommented, IQmathTables2
will be loaded into other memory (SARAM, Flash, etc.) and will take
up space, but 0 wait-state is possible.
*/
/*
IQmathTables3 : > IQTABLES3, PAGE = 0, TYPE = NOLOAD
{
IQmath.lib<IQNasinTable.obj> (IQmathTablesRam)
}
*/
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
而后添加的 F2806x_Headers_nonBIOS.cmd 文件，其内容如下：
/*
//###########################################################################
//
// FILE: F2806x_Headers_nonBIOS.cmd
//
// TITLE: F2806x Peripheral registers linker command file
//
// DESCRIPTION:
//
// This file is for use in Non-BIOS applications.
//
// Linker command file to place the peripheral structures
// used within the F2806x headerfiles into the correct memory
// mapped locations.
//
// This version of the file includes the PieVectorTable structure.
// For BIOS applications, please use the F2806x_Headers_BIOS.cmd file
// which does not include the PieVectorTable structure.
//
//###########################################################################
// $TI Release: F2806x C/C++ Header Files and Peripheral Examples V151 $
// $Release Date: February 2, 2016 $
// $Copyright: Copyright (C) 2011-2016 Texas Instruments Incorporated -
// http://www.ti.com/ ALL RIGHTS RESERVED $
//###########################################################################
*/
MEMORY
{
PAGE 0: /* Program Memory */
PAGE 1: /* Data Memory */
DEV_EMU : origin = 0x000880, length = 0x000105 /* Device Emulation Registers */
SYS_PWR_CTL : origin = 0x000985, length = 0x000003 /* System Power Control Registers */
FLASH_REGS : origin = 0x000A80, length = 0x000060 /* Flash Registers */
CSM : origin = 0x000AE0, length = 0x000020 /* Code Security Module Registers */
ADC_RESULT : origin = 0x000B00, length = 0x000020 /* ADC Results Register Mirror */
CPU_TIMER0 : origin = 0x000C00, length = 0x000008 /* CPU Timer0 Registers */
CPU_TIMER1 : origin = 0x000C08, length = 0x000008 /* CPU Timer1 Registers */
CPU_TIMER2 : origin = 0x000C10, length = 0x000008 /* CPU Timer2 Registers */
PIE_CTRL : origin = 0x000CE0, length = 0x000020 /* PIE Control Registers */
PIE_VECT : origin = 0x000D00, length = 0x000100 /* PIE Vector Table */
DMA : origin = 0x001000, length = 0x000200 /* DMA Registers */
CLA1 : origin = 0x001400, length = 0x000080 /* CLA Registers */
USB0 : origin = 0x004000, length = 0x001000 /* USB0 Registers */
McBSPA : origin = 0x005000, length = 0x000040 /* McBSP-A Registers */
ECANA : origin = 0x006000, length = 0x000040 /* eCAN-A Control and Status Registers */
ECANA_LAM : origin = 0x006040, length = 0x000040 /* eCAN-A Local Acceptance Masks */
ECANA_MOTS : origin = 0x006080, length = 0x000040 /* eCAN-A Message Object Time Stamps */
ECANA_MOTO : origin = 0x0060C0, length = 0x000040 /* eCAN-A Object Time-Out Registers */
ECANA_MBOX : origin = 0x006100, length = 0x000100 /* eCAN-A Milboxes */
COMP1 : origin = 0x006400, length = 0x000020 /* Comparator + DAC 1 Registers */
COMP2 : origin = 0x006420, length = 0x000020 /* Comparator + DAC 2 Registers */
COMP3 : origin = 0x006440, length = 0x000020 /* Comparator + DAC 3 Registers */
EPWM1 : origin = 0x006800, length = 0x000040 /* Enhanced PWM 1 Registers */
EPWM2 : origin = 0x006840, length = 0x000040 /* Enhanced PWM 2 Registers */
EPWM3 : origin = 0x006880, length = 0x000040 /* Enhanced PWM 3 Registers */
EPWM4 : origin = 0x0068C0, length = 0x000040 /* Enhanced PWM 4 Registers */
EPWM5 : origin = 0x006900, length = 0x000040 /* Enhanced PWM 5 Registers */
EPWM6 : origin = 0x006940, length = 0x000040 /* Enhanced PWM 6 Registers */
EPWM7 : origin = 0x006980, length = 0x000040 /* Enhanced PWM 7 Registers */
EPWM8 : origin = 0x0069C0, length = 0x000040 /* Enhanced PWM 8 Registers */
ECAP1 : origin = 0x006A00, length = 0x000020 /* Enhanced Capture 1 Registers */
ECAP2 : origin = 0x006A20, length = 0x000020 /* Enhanced Capture 2 Registers */
ECAP3 : origin = 0x006A40, length = 0x000020 /* Enhanced Capture 3 Registers */
HRCAP1 : origin = 0x006AC0, length = 0x000020 /* High Resolution Capture 1 Registers */
HRCAP2 : origin = 0x006AE0, length = 0x000020 /* High Resolution Capture 2 Registers */
EQEP1 : origin = 0x006B00, length = 0x000040 /* Enhanced QEP 1 Registers */
EQEP2 : origin = 0x006B40, length = 0x000040 /* Enhanced QEP 2 Registers */
HRCAP3 : origin = 0x006C80, length = 0x000020 /* High Resolution Capture 3 Registers */
HRCAP4 : origin = 0x006CA0, length = 0x000020 /* High Resolution Capture 4 Registers */
GPIOCTRL : origin = 0x006F80, length = 0x000040 /* GPIO Control Registers */
GPIODAT : origin = 0x006FC0, length = 0x000020 /* GPIO Data Registers */
GPIOINT : origin = 0x006FE0, length = 0x000020 /* GPIO Interrupt/LPM Registers */
SYSTEM : origin = 0x007010, length = 0x000030 /* System Control Registers */
SPIA : origin = 0x007040, length = 0x000010 /* SPI-A Registers */
SPIB : origin = 0x007740, length = 0x000010 /* SPI-B Registers */
SCIA : origin = 0x007050, length = 0x000010 /* SCI-A Registers */
SCIB : origin = 0x007750, length = 0x000010 /* SCI-B Registers */
NMIINTRUPT : origin = 0x007060, length = 0x000010 /* NMI Watchdog Interrupt Registers */
XINTRUPT : origin = 0x007070, length = 0x000010 /* External Interrupt Registers */
ADC : origin = 0x007100, length = 0x000080 /* ADC Registers */
I2CA : origin = 0x007900, length = 0x000040 /* I2C-A Registers */
PARTID : origin = 0x3D7E80, length = 0x000001 /* Part ID Register Location */
CSM_PWL : origin = 0x3F7FF8, length = 0x000008 /* Part of FLASHA CSM password locations */
}
SECTIONS
{
/*** PIE Vect Table and Boot ROM Variables Structures ***/
UNION run = PIE_VECT, PAGE = 1
{
PieVectTableFile
GROUP
{
EmuKeyVar
EmuBModeVar
FlashCallbackVar
FlashScalingVar
}
}
/*** Peripheral Frame 0 Register Structures ***/
DevEmuRegsFile : > DEV_EMU, PAGE = 1
SysPwrCtrlRegsFile: > SYS_PWR_CTL, PAGE = 1
FlashRegsFile : > FLASH_REGS, PAGE = 1
CsmRegsFile : > CSM, PAGE = 1
AdcResultFile : > ADC_RESULT, PAGE = 1
CpuTimer0RegsFile : > CPU_TIMER0, PAGE = 1
CpuTimer1RegsFile : > CPU_TIMER1, PAGE = 1
CpuTimer2RegsFile : > CPU_TIMER2, PAGE = 1
PieCtrlRegsFile : > PIE_CTRL, PAGE = 1
Cla1RegsFile : > CLA1, PAGE = 1
DmaRegsFile : > DMA, PAGE = 1
/*** Peripheral Frame 1 Register Structures ***/
ECanaRegsFile : > ECANA, PAGE = 1
ECanaLAMRegsFile : > ECANA_LAM, PAGE = 1
ECanaMboxesFile : > ECANA_MBOX, PAGE = 1
ECanaMOTSRegsFile : > ECANA_MOTS, PAGE = 1
ECanaMOTORegsFile : > ECANA_MOTO, PAGE = 1
ECap1RegsFile : > ECAP1, PAGE = 1
ECap2RegsFile : > ECAP2, PAGE = 1
ECap3RegsFile : > ECAP3, PAGE = 1
EQep1RegsFile : > EQEP1, PAGE = 1
EQep2RegsFile : > EQEP2, PAGE = 1
GpioCtrlRegsFile : > GPIOCTRL, PAGE = 1
GpioDataRegsFile : > GPIODAT, PAGE = 1
GpioIntRegsFile : > GPIOINT, PAGE = 1
HRCap1RegsFile : > HRCAP1, PAGE = 1
HRCap2RegsFile : > HRCAP2, PAGE = 1
HRCap3RegsFile : > HRCAP3, PAGE = 1
HRCap4RegsFile : > HRCAP4, PAGE = 1
/*** Peripheral Frame 2 Register Structures ***/
SysCtrlRegsFile : > SYSTEM, PAGE = 1
SpiaRegsFile : > SPIA, PAGE = 1
SpibRegsFile : > SPIB, PAGE = 1
SciaRegsFile : > SCIA, PAGE = 1
ScibRegsFile : > SCIB, PAGE = 1
NmiIntruptRegsFile: > NMIINTRUPT, PAGE = 1
XIntruptRegsFile : > XINTRUPT, PAGE = 1
AdcRegsFile : > ADC, PAGE = 1
I2caRegsFile : > I2CA, PAGE = 1
/*** Peripheral Frame 3 Register Structures ***/
Comp1RegsFile : > COMP1, PAGE = 1
Comp2RegsFile : > COMP2, PAGE = 1
Comp3RegsFile : > COMP3, PAGE = 1
EPwm1RegsFile : > EPWM1, PAGE = 1
EPwm2RegsFile : > EPWM2, PAGE = 1
EPwm3RegsFile : > EPWM3, PAGE = 1
EPwm4RegsFile : > EPWM4, PAGE = 1
EPwm5RegsFile : > EPWM5, PAGE = 1
EPwm6RegsFile : > EPWM6, PAGE = 1
EPwm7RegsFile : > EPWM7, PAGE = 1
EPwm8RegsFile : > EPWM8, PAGE = 1
McbspaRegsFile : > McBSPA, PAGE = 1
Usb0RegsFile : > USB0, PAGE = 1
/*** Code Security Module Register Structures ***/
CsmPwlFile : > CSM_PWL, PAGE = 1
/*** Device Part ID Register Structures ***/
PartIdRegsFile : > PARTID, PAGE = 1
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
另一篇博客中有对于cmd文件的详解
28069_RAM_lnk.cmd中，MEMORY伪指令和SECTION伪指令仅仅做了一些基础的设置，如.text, .cinit等。
F2806x_Headers_nonBIOS.cmd中，MEMORY和SECTION伪指令在此基础上做了更加详细的区间分配，如
EPwm1RegsFile : > EPWM1, PAGE = 1
如果不使用F2806x_Headers_nonBIOS.cmd文件，则未分配空间的内容将会交给dsp自动进行。因此会出现warning
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