TI中文支持网Part Number:TMS320F28035
通过仿真器下载BootLoader和APP程序之后，APP程序能正常运行（两路PWM输出，设置相同的占空比，两路PWM输出占空比相同），此时程序没有经过BootLoader，但是重启之后，程序由BootLoader跳转到APP之后，在测试APP程序，发现pwm输出不正确（发现两路PWM输出占空比不同），多次测试出现现象相同
xiang li：
不明白为啥经过BootLoader跳转到APP之后会影响APP程序的运行，直接启动APP程序不受影响
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xiang li：
APP收到升级指令之后，则是启动看门狗复位
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xiang li：
BootLoader的CMD配置
MEMORY { PAGE 0:/* Program Memory */RAML00: origin = 0x008000, length = 0x000100/* on-chip RAM block L2 */OTP: origin = 0x3D7800, length = 0x000400/* on-chip OTP */BOOT_CODE: origin = 0x3F4000, length = 0x003F80/* on-chip FLASH */CSM_RSVD: origin = 0x3F7F80, length = 0x000076/* Part of FLASHA.Program with all 0x0000 when CSM is in use. */BEGIN: origin = 0x3F7FF6, length = 0x000002/* Part of FLASHA.Used for "boot to Flash" bootloader mode. */CSM_PWL_P0: origin = 0x3F7FF8, length = 0x000008/* Part of FLASHA.CSM password locations in FLASHA */IQTABLES: origin = 0x3FE000, length = 0x000B50/* IQ Math Tables in Boot ROM */IQTABLES2: origin = 0x3FEB50, length = 0x00008C/* IQ Math Tables in Boot ROM */IQTABLES3: origin = 0x3FEBDC, length = 0x0000AA/* IQ Math Tables in Boot ROM */ROM: origin = 0x3FF27C, length = 0x000D44/* Boot ROM */RESET: origin = 0x3FFFC0, length = 0x000002/* part of boot ROM*/VECTORS: origin = 0x3FFFC2, length = 0x00003E/* part of boot ROM*/PAGE 1 :/* Data Memory */*/BOOT_RSVD: origin = 0x000000, length = 0x000050/* Part of M0, BOOT rom will use this for stack */RAMM0: origin = 0x000050, length = 0x0003B0/* on-chip RAM block M0 */RAMM1: origin = 0x000400, length = 0x000400/* on-chip RAM block L2 */ }SECTIONS {/* Allocate program areas: */.cinit: > BOOT_CODEPAGE = 0/* 初始化的全局变量和static变量表*/.pinit: > BOOT_CODE,PAGE = 0/* 全局对象的构造函数表C++范畴*/.text: > BOOT_CODEPAGE = 0/* 可执行代码和常数段 */codestart: > BEGINPAGE = 0/* 代码启动段 *///Flash28_API: //{ //-l Flash2803x_API_V100.lib(.econst) //-l Flash2803x_API_V100.lib(.text) //}LOAD = BOOT_CODE, //RUN = RAML0, //LOAD_START(_Flash28_API_LoadStart), //LOAD_END(_Flash28_API_LoadEnd), //RUN_START(_Flash28_API_RunStart), //PAGE = 0ramfuncs: LOAD = BOOT_CODE,/* 将定义到段ramfuncs上的代码，载入到BOOT_CODE */RUN = RAML00,/* 定义到ramfuncs上的代码，复制到RAML0上运行 */LOAD_START(_RamfuncsLoadStart),/* 所要加载程序在Flash里的初始地址 */LOAD_END(_RamfuncsLoadEnd),/* 所要加载程序在Flash里的结束地址 */RUN_START(_RamfuncsRunStart),/* 程序运行的起始地址 */PAGE = 0csmpasswds: > CSM_PWL_P0PAGE = 0/* 密码段 */csm_rsvd: > CSM_RSVDPAGE = 0/* 使用代码安全模块时，需要预留的段*//* Allocate uninitalized data sections: 未初始化数据段 */.stack: > RAMM0PAGE = 1/* 栈空间*/.ebss: > RAMM1PAGE = 1/* 长调用的全局或static变量,初始化和未初始化变量*/.esysmem: > RAMM0PAGE = 1/* Initalized sections go in Flash已初始化的段*/.econst: > BOOT_CODEPAGE = 0/* 字符串常量和far const定义的全局和静态变量（static const）*/.switch: > BOOT_CODEPAGE = 0/* 存放switch语句产生的常数表格*//* Allocate IQ math areas: 分配 IQ 数学表区域 */IQmath: > BOOT_CODEPAGE = 0/* Math Code */IQmathTables: > IQTABLES,PAGE = 0, TYPE = NOLOAD.reset: > RESET,PAGE = 0, TYPE = DSECTvectors: > VECTORSPAGE = 0, TYPE = DSECT }
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xiang li：
APP的CMD配置
_Cla1Prog_Start = _Cla1funcsRunStart; -heap0x200 -stack 0x400CLA_SCRATCHPAD_SIZE = 0x100; --undef_sym=__cla_scratchpad_end --undef_sym=__cla_scratchpad_startMEMORY { PAGE 0:/* Program Memory */RAML00: origin = 0x008000, length = 0x000100/* on-chip RAM block L0 */RAML2: origin = 0x008C00, length = 0x000400/* on-chip RAM block L2 */RAML3: origin = 0x009000, length = 0x000400/* on-chip RAM block L3 */OTP: origin = 0x3D7800, length = 0x000400/* on-chip OTP */APP_INFO_ADDR:origin = 0x3EE000, length = 0x000006APP_BEGIN: origin = 0x3EE006, length = 0x000002APP_CODE: origin = 0x3EE200, length = 0x005E00IQTABLES: origin = 0x3FE000, length = 0x000B50/* IQ Math Tables in Boot ROM */IQTABLES2: origin = 0x3FEB50, length = 0x00008C/* IQ Math Tables in Boot ROM */IQTABLES3: origin = 0x3FEBDC, length = 0x0000AA/* IQ Math Tables in Boot ROM */ROM: origin = 0x3FF27C, length = 0x000D44/* Boot ROM */RESET: origin = 0x3FFFC0, length = 0x000002/* part of boot ROM*/VECTORS: origin = 0x3FFFC2, length = 0x00003E/* part of boot ROM*/PAGE 1 :/* Data Memory */BOOT_RSVD: origin = 0x000000, length = 0x000050/* Part of M0, BOOT rom will use this for stack */RAMM0: origin = 0x000050, length = 0x0007B0/* on-chip RAM block M0 */RAML01: origin = 0x008100, length = 0x000700/* on-chip RAM block L0 */CLA_DATA: origin = 0x3EE008, length = 0x0001F8CLARAM0: origin = 0x008800, length = 0x000400CLARAM1: origin = 0x009800, length = 0x000400CLA1_MSGRAMLOW: origin = 0x001480, length = 0x000080CLA1_MSGRAMHIGH: origin = 0x001500, length = 0x000080 }SECTIONS {/* Allocate program areas: */.cinit: > APP_CODEPAGE = 0.pinit: > APP_CODE,PAGE = 0.text: > APP_CODEPAGE = 0codestart: > APP_BEGINPAGE = 0ramfuncs: LOAD = APP_CODE,RUN = RAML2,LOAD_START(_RamfuncsLoadStart),LOAD_SIZE(_RamfuncsLoadSize),RUN_START(_RamfuncsRunStart),PAGE = 0/* Allocate uninitalized data sections: */.stack: > RAMM0PAGE = 1.ebss: > RAML01PAGE = 1.esysmem: > RAMM0PAGE = 1/* Initalized sections go in Flash */.econst: > APP_CODEPAGE = 0.switch: > APP_CODEPAGE = 0InfoData: > APP_INFO_ADDRPAGE = 0/* Allocate IQ math areas: */IQmath: > APP_CODEPAGE = 0/* Math Code */IQmathTables: > IQTABLES,PAGE = 0, TYPE = NOLOAD.bss_cla: > CLARAM0,PAGE = 1.scratchpad: > CLARAM0,PAGE = 1Cla1Prog: LOAD = APP_CODE,RUN= RAML3,LOAD_START(_Cla1funcsLoadStart),LOAD_END(_Cla1funcsLoadEnd),RUN_START(_Cla1funcsRunStart),LOAD_SIZE(_Cla1funcsLoadSize),PAGE = 0Cla1ToCpuMsgRAM: > CLA1_MSGRAMLOW,PAGE = 1CpuToCla1MsgRAM: > CLA1_MSGRAMHIGH,PAGE = 1Cla1DataRam0: > CLARAM0,PAGE = 1Cla1DataRam1: > CLARAM1,PAGE = 1GROUP: LOAD = CLA_DATA,RUN = CLARAM1,LOAD_START(_Cla1mathTablesLoadStart),LOAD_END(_Cla1mathTablesLoadEnd),RUN_START(_Cla1mathTablesRunStart),LOAD_SIZE(_Cla1mathTablesLoadSize),PAGE = 1{CLA1mathTables.const_cla}CLAscratch:{ *.obj(CLAscratch). += CLA_SCRATCHPAD_SIZE;*.obj(CLAscratch_end) } > CLARAM0,PAGE = 1/* DSECT*/.reset: > RESET,PAGE = 0, TYPE = DSECTvectors: > VECTORSPAGE = 0, TYPE = DSECT }
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xiang li：
有谁帮忙看一下吗
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Yale Li：
xiang li 说：发现pwm输出不正确（发现两路PWM输出占空比不同）
能不能上传一下PWM的波形？占空比不同会相差多少？相差的值固定吗？
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xiang li：
其中一路波形固定的占空比接近100%，不受设置的占空比控制，另一路PWM正确的，会受到设置的占空比控制
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xiang li：
我设置两路了PWM相同的占空比，上位机读取出来的占空比也是相同的，示波器测量发现波形不对
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Yale Li：
方便使用调试器在不加载代码的情况下，在复位后看一下相关寄存器的变化情况吗？
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xiang li：
你好，想问一下使用调试器在不加载代码怎么弄，没试过
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xiang li：
在（1）处调用跳转程序就正常了，在IsNeedUpdata函数内部（2）处调用PWM占空比就不正常
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xiang li：
（1）到（2）之间初始化了InitFlash和MemCopy，会是这个影响了吗
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Yale Li：
更改debug选项，把load program改为load symbol only
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xiang li：
这个是正确的波形，直接从BootLoader程序跳转到app
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xiang li：
这是错误的波形，右边是启动时的EPWM1、EPWM2、EPWM3、EPWM4寄存器的变化情况
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Yale Li：
好的，我看一下
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Yale Li：
xiang li 说：
这个是正确的波形，直接从BootLoader程序跳转到app
你之前说的是不经过bootloader时波形是正常的，而从bootloader跳到APP的时候波形是不正常的。这里再确认一下；
xiang li 说：
这是错误的波形，右边是启动时的EPWM1、EPWM2、EPWM3、EPWM4寄存器的变化情况
示波器上的波形对应的分别是哪两路信号？
