TI中文支持网目标：ti 28035芯片
实现功能：通过串口在线升级（自己写bootloader）
目前进展：已经可以实现上位机通过串口给DSP在线升级，并能完成boot层跳转APP层，主CPU程序运行无误，但另外一个核CLA没跑起来。
实现思路：
创建两个工程，分别实现bootloader和上层app。
bootloader运行后，判断是否已经在线升级过，是就直接跳转app，否则接受上位机升级命令，并和上位机通信完成接收数据并烧写flash，之后跳转APP。
现在的问题大概在CMD文件配置上，也就是boot层和APP层的flash以及ram的划分上。
bootloader 代码划分在flashA上，app划分在flashH~flashD上，其他的ram没有做大的改动。以下为boot层的cmd文件内容：
CLA_SCRATCHPAD_SIZE = 0x100;
–undef_sym=__cla_scratchpad_end
–undef_sym=__cla_scratchpad_start
_Cla1Prog_Start = _Cla1funcsRunStart;
-heap 0x100
-m UltraSonicPower200.map
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
RAMLISR_PRG : origin = 0x008000, length = 0x000100 /* on-chip RAM block L0 */
RAMLAPP_PRG : origin = 0x008100, length = 0x000400 /* on-chip RAM block L0 */
//RAMLBOOT_PRG : origin = 0x008400, length = 0x000100 /* on-chip RAM block L0 */
//RAML1 : origin = 0x008800, length = 0x000400 /* on-chip RAM block L1 */
RAML3 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L3, for CLA run code */
OTP : origin = 0x3D7800, length = 0x000400 /* on-chip OTP */
FLASHH : origin = 0x3e8000, length = 0x00A000 /* on-chip FLASH */
//FLASHH : origin = 0x3E8000, length = 0x002000 /* on-chip FLASH */
//FLASHG : origin = 0x3EA000, length = 0x002000 /* on-chip FLASH */
//FLASHF : origin = 0x3EC000, length = 0x002000 /* on-chip FLASH */
//FLASHE : origin = 0x3EE000, length = 0x002000 /* on-chip FLASH */
//FLASHD : origin = 0x3F0000, length = 0x002000 /* on-chip FLASH */
FLASHC : origin = 0x3F2000, length = 0x002000 /* on-chip FLASH */
FLASHA : origin = 0x3F6000, length = 0x001F80 /* 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 */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1 */
BOOT_RSVD : origin = 0x000000, length = 0x000050 /* Part of M0, BOOT rom will use this for stack */
RAMM0 : origin = 0x000080, length = 0x0007B0 /* on-chip RAM block M0, and M1 is incorporated to M0 */
// RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
DataRAM : origin = 0x008500, length = 0x0006FF /*on-chip RAM block L0,L1 */
BootFlagRAM : origin = 0x008BFF, length = 0x000001 /* on-chip RAM block L1 */
CLARAM1 : origin = 0x008C00, length = 0x000400 /* on-chip RAM block L2 */
//RAML3 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L3 */
CLA1_MSGRAMLOW : origin = 0x001480, length = 0x000080
CLA1_MSGRAMHIGH : origin = 0x001500, length = 0x000080
FLASHB : origin = 0x3F4000, length = 0x002000 /* on-chip FLASH */
}
SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHA PAGE = 0
.pinit : > FLASHA, PAGE = 0
.text : > FLASHA PAGE = 0
codestart : > BEGIN PAGE = 0
IsrRamfuncs : LOAD = FLASHA,
RUN = RAMLISR_PRG,
LOAD_START(_IsrRamfuncsLoadStart),
LOAD_END(_IsrRamfuncsLoadEnd),
RUN_START(_IsrRamfuncsRunStart),
PAGE = 0
ramfuncs : LOAD = FLASHA,
RUN = RAMLAPP_PRG,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
PAGE = 0
csmpasswds : > CSM_PWL_P0 PAGE = 0
csm_rsvd : > CSM_RSVD PAGE = 0
debug_ram : > DataRAM PAGE = 1
BootFlagRam : > BootFlagRAM PAGE = 1
/* Allocate uninitalized data sections: */
//.stack : > RAMM0 PAGE = 1
.stack : > DataRAM PAGE = 1
.ebss : > RAMM0 PAGE = 1
// .esysmem : > RAMM0 PAGE = 1
//.sysmem : > RAMM0 PAGE = 1
/* Initalized sections go in Flash */
/* For SDFlash to program these, they must be allocated to page 0 */
.econst : > FLASHA PAGE = 0
.switch : > FLASHA PAGE = 0
/* Allocate IQ math areas: */
IQmath : > FLASHA PAGE = 0 /* Math Code */
IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD
.bss_cla : > CLARAM1, PAGE = 1
.scratchpad : > CLARAM1, PAGE = 1
Cla1Prog : LOAD = FLASHH,
RUN = RAML3,
LOAD_START(_Cla1funcsLoadStart),
LOAD_END(_Cla1funcsLoadEnd),
RUN_START(_Cla1funcsRunStart),
LOAD_SIZE(_Cla1funcsLoadSize),
PAGE = 0
Cla1ToCpuMsgRAM : > CLA1_MSGRAMLOW, PAGE = 1
CpuToCla1MsgRAM : > CLA1_MSGRAMHIGH, PAGE = 1
// Cla1DataRam0 : > CLARAM0, PAGE = 1
Cla1DataRam1 : > CLARAM1, PAGE = 1
CLA1mathTables : LOAD = FLASHB,
RUN = CLARAM1,
LOAD_START(_Cla1mathTablesLoadStart),
LOAD_END(_Cla1mathTablesLoadEnd),
RUN_START(_Cla1mathTablesRunStart),
LOAD_SIZE(_Cla1mathTablesLoadSize),
PAGE = 1
CLAscratch :
{ *.obj(CLAscratch)
. += CLA_SCRATCHPAD_SIZE;
*.obj(CLAscratch_end) } > CLARAM1,
PAGE = 1
/*
IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD
{
IQmath.lib<IQNexpTable.obj> (IQmathTablesRam)
}
/* .reset is a standard section used by the compiler. It contains the */
/* the address of the start of _c_int00 for C Code. /*
/* When using the boot ROM this section and the CPU vector */
/* table is not needed. Thus the default type is set here to */
/* DSECT */
.reset : > RESET, PAGE = 0, TYPE = DSECT
vectors : > VECTORS PAGE = 0, TYPE = DSECT
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
cmd文件界定了flash和ram的使用，现在就是不太清楚，cmd到底是不是有问题？
一下是APP层的cmd文件内容：
CLA_SCRATCHPAD_SIZE = 0x100;
–undef_sym=__cla_scratchpad_end
–undef_sym=__cla_scratchpad_start
_Cla1Prog_Start = _Cla1funcsRunStart;
-heap 0x100
-m UltraSonicPower200.map
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
RAMLISR_PRG : origin = 0x008000, length = 0x000100 /* on-chip RAM block L0 */
RAMLAPP_PRG : origin = 0x008100, length = 0x000300 /* on-chip RAM block L0 */
RAMLBOOT_PRG : origin = 0x008400, length = 0x000100 /* on-chip RAM block L0 */
//RAML1 : origin = 0x008800, length = 0x000400 /* on-chip RAM block L1 */
RAML3 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L3, for CLA run code */
OTP : origin = 0x3D7800, length = 0x000400 /* on-chip OTP */
FLASHH : origin = 0x3E8004, length = 0x009FFC /* on-chip FLASH 0x3E8002 as begin 0x3E8000 as Flashed_flag*/
//FLASHH : origin = 0x3E8000, length = 0x002000 /* on-chip FLASH */
//FLASHG : origin = 0x3EA000, length = 0x002000 /* on-chip FLASH */
//FLASHF : origin = 0x3EC000, length = 0x002000 /* on-chip FLASH */
//FLASHE : origin = 0x3EE000, length = 0x002000 /* on-chip FLASH */
//FLASHD : origin = 0x3F0000, length = 0x002000 /* on-chip FLASH */
FLASHC : origin = 0x3F2000, length = 0x002000 /* on-chip FLASH */
FLASHA : origin = 0x3F6000, length = 0x001F80 /* 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. */
BEGIN : origin = 0x3E8002, length = 0x000002 /* Part of FLASHH. . */
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 */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1 */
BOOT_RSVD : origin = 0x000000, length = 0x000050 /* Part of M0, BOOT rom will use this for stack */
RAMM0 : origin = 0x000080, length = 0x0007B0 /* on-chip RAM block M0, and M1 is incorporated to M0 */
// RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
DataRAM : origin = 0x008500, length = 0x0006FF /*on-chip RAM block L0,L1 */
BootFlagRAM : origin = 0x008BFF, length = 0x000001 /* on-chip RAM block L1 */
CLARAM1 : origin = 0x008C00, length = 0x000400 /* on-chip RAM block L2 */
//RAML3 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L3 */
CLA1_MSGRAMLOW : origin = 0x001480, length = 0x000080
CLA1_MSGRAMHIGH : origin = 0x001500, length = 0x000080
FLASHB : origin = 0x3F4000, length = 0x002000 /* on-chip FLASH */
}
SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHH PAGE = 0
.pinit : > FLASHH, PAGE = 0
.text : > FLASHH PAGE = 0
codestart : > BEGIN PAGE = 0
IsrRamfuncs : LOAD = FLASHH,
RUN = RAMLISR_PRG,
LOAD_START(_IsrRamfuncsLoadStart),
LOAD_END(_IsrRamfuncsLoadEnd),
RUN_START(_IsrRamfuncsRunStart),
PAGE = 0
ramfuncs : LOAD = FLASHH,
RUN = RAMLAPP_PRG,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
PAGE = 0
csmpasswds : > CSM_PWL_P0 PAGE = 0
csm_rsvd : > CSM_RSVD PAGE = 0
debug_ram : > DataRAM PAGE = 1
BootFlagRam : > BootFlagRAM PAGE = 1
/* Allocate uninitalized data sections: */
//.stack : > RAMM0 PAGE = 1
.stack : > DataRAM PAGE = 1
.ebss : > RAMM0 PAGE = 1
// .esysmem : > RAMM0 PAGE = 1
//.sysmem : > RAMM0 PAGE = 1
/* Initalized sections go in Flash */
/* For SDFlash to program these, they must be allocated to page 0 */
.econst : > FLASHH PAGE = 0
.switch : > FLASHH PAGE = 0
/* Allocate IQ math areas: */
IQmath : > FLASHA PAGE = 0 /* Math Code */
IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD
.bss_cla : > CLARAM1, PAGE = 1
.scratchpad : > CLARAM1, PAGE = 1
Cla1Prog : LOAD = FLASHH,
RUN = RAML3,
LOAD_START(_Cla1funcsLoadStart),
LOAD_END(_Cla1funcsLoadEnd),
RUN_START(_Cla1funcsRunStart),
LOAD_SIZE(_Cla1funcsLoadSize),
PAGE = 0
Cla1ToCpuMsgRAM : > CLA1_MSGRAMLOW, PAGE = 1
CpuToCla1MsgRAM : > CLA1_MSGRAMHIGH, PAGE = 1
// Cla1DataRam0 : > CLARAM0, PAGE = 1
Cla1DataRam1 : > CLARAM1, PAGE = 1
CLA1mathTables : LOAD = FLASHB,
RUN = CLARAM1,
LOAD_START(_Cla1mathTablesLoadStart),
LOAD_END(_Cla1mathTablesLoadEnd),
RUN_START(_Cla1mathTablesRunStart),
LOAD_SIZE(_Cla1mathTablesLoadSize),
PAGE = 1
CLAscratch :
{ *.obj(CLAscratch)
. += CLA_SCRATCHPAD_SIZE;
*.obj(CLAscratch_end) } > CLARAM1,
PAGE = 1
/*
IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD
{
IQmath.lib<IQNexpTable.obj> (IQmathTablesRam)
}
*/
/*
IQmathTables3 : > IQTABLES3, PAGE = 0, TYPE = NOLOAD
{
IQmath.lib<IQNasinTable.obj> (IQmathTablesRam)
}
*/
/* .reset is a standard section used by the compiler. It contains the */
/* the address of the start of _c_int00 for C Code. /*
/* When using the boot ROM this section and the CPU vector */
/* table is not needed. Thus the default type is set here to */
/* DSECT */
.reset : > RESET, PAGE = 0, TYPE = DSECT
vectors : > VECTORS PAGE = 0, TYPE = DSECT
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
希望做个的和要做的工程师们一起来讨论一下，有时候一些问题往往是在互相讨论中解决的，而且讨论问题还能互相学习没有遇到过的问题
Green Deng：
你好，你的程序已经确认正常烧写的情况下，CLA是能够正常启动的是吗？
Green Deng：
另外，CLA无法启动是无法进入中断吗？还是进入中断无法运行？CCS调试是否正常？
wei chen1：
回复 Green Deng:
你好，CLA的代码是经过测试的，在不在线升级时是可以正常运行的。外部有个触摸屏可以显示CLA里改动的变量在变化，但一旦经过升级后，该变量就不动了，而且连初始值都像是随机的
wei chen1：
回复 Green Deng:
CCS调试的时候是正常的，CLA无法启动应该就是该触发的任务没有运行，但是用仿真器是可以正常触发的
wei chen1：
回复 Green Deng:
然后我使用了另一种bootloader的方法，把boot和app写在一个工程里了，改动了codebranch里的汇编，codestart那里放了一个跳转至boot的指令，然后在boot里判断是否已升级，是则跳转至0x3e8000，此地址放置了一条跳转至_c_int00的指令，若没有升级，则接收升级，升级完成后，开看门狗，并使用死循环复位。
这种方法可以让cla动起来，但又出现另一个问题了，boot完成后，每次重新上电，程序需要跑十几秒才会正常运行，程序正常运行的表现是LED灯闪烁，在这之前LED一直常量。仿真器查看此时一直在跑延时函数，但把函数干掉后，程序就飞了，飞一会后又正常了，灯又闪起来了，是正常运行的，触摸屏显示正确。跑飞的地方是0x837e，此地址显示有一个延时函数指令，但我已经改掉了，这个ram区没放这个
wei chen1：
回复 wei chen1:
这个写成一个工程的问题解决了，现在还是不明白，boot和app分成两个工程的为什么会存在哪个问题
Green Deng：
回复 wei chen1:
你提到程序需要跑十几秒的延时函数才会正常运行，关于这点，你的工程中是否有用到memcpy函数将代码从flash复制到ram？
因为程序在flash中运行的速度要远慢于在ram中运行的速度，所以，对一些时间要求比较高的程序需要将代码从flash复制到ram运行。
wei chen1：
回复 Green Deng:
问题已经解决了，还是感谢你的解答
Green Deng：
回复 wei chen1:
感谢反馈，方便的话可以分享一下解决方法以便其他人可以参考一下。
