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TSM320F2812 烧写到Flash中的configuration
首先从网上查阅的资料，都说比较困难。实着对我这样的业余2812人员一个大大的下马威啊。没有办法，饭只有一口一口的吃。摸索下来，发现也不是很困难的事情啊（也许在下是夜郎自大，没有遇到稀奇古怪的case）。
place-lower device只是实现了很简单的功能，
1，eCan, 采用了poll transmit AND interrupt receipt,
2，SCI -b,同样采用轮训发送，中断的接收；
3，ADC ，只采样了三路，做了很基本的Float到Hexadecimal 的转换
ADC采样数据发送到eCan interface，pc端只有一个eCan <<==>>USB的adapter《==》virual COM。没有软件，没有开发库（由于我们前期只是把功能实现了），连用多少Baud，数据位，停止位是什么都不知道，费劲吧；在这上面,确实花费我不少的功夫，读出USB的original 数据啊，查找其rule（都是凑出来的），然后解码成原始发送的数据，丢到VC的GUI中显示波形。
ok，言归正传，先修改cmd文件，我的cmd文件如下 MYF2812.cmd（CMD文件的格式，讲的地方很多，google一下吧）
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
RAML0 : origin = 0x008000, length = 0x001000 /*L0 SRAM 4K */
OTP : origin = 0x3D7800, length = 0x000800 /* on-chip OTP */
FLASHJ : origin = 0x3D8000, length = 0x002000 /* on-chip FLASH */
FLASHI : origin = 0x3DA000, length = 0x002000 /* on-chip FLASH */
FLASHH : origin = 0x3DC000, length = 0x004000 /* on-chip FLASH */
FLASHG : origin = 0x3E0000, length = 0x004000 /* on-chip FLASH */
FLASHF : origin = 0x3E4000, length = 0x004000 /* on-chip FLASH */
FLASHE : origin = 0x3E8000, length = 0x004000 /* on-chip FLASH */
FLASHD : origin = 0x3EC000, length = 0x004000 /* on-chip FLASH */
FLASHC : origin = 0x3F0000, length = 0x004000 /* 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. */
ROM : origin = 0x3FF000, length = 0x000FC0 /* 引导区的ROM available if MP/MCn=0 */
RESET : origin = 0x3FFFC0, length = 0x000002 /* 复位地址BROM矢量 ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
VECTORS : origin = 0x3FFFC2, length = 0x00003E /*BROM矢量 ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
PAGE 1 : /* Data Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1 */
RAMM0 : origin = 0x000000, length = 0x000400 /* 低地址 数据空间 M0 SRAM */
RAMM1 : origin = 0x000400, length = 0x000400 /* 低地址 数据空间 M1 SRAM */
RAML1 : origin = 0x009000, length = 0x001000 /* 低地址 数据空间 L1 SRAM */
FLASHB : origin = 0x3F4000, length = 0x002000 /* on-chip FLASH */
RAMH0 : origin = 0x3F8000, length = 0x002000 /* 高地址 H0 8K空间*/
/* Peripheral Frame 0: */
DEV_EMU : origin = 0x000880, length = 0x000180
FLASH_REGS : origin = 0x000A80, length = 0x000060
CSM : origin = 0x000AE0, length = 0x000010
XINTF : origin = 0x000B20, length = 0x000020
CPU_TIMER0 : origin = 0x000C00, length = 0x000008
CPU_TIMER1 : origin = 0x000C08, length = 0x000008
CPU_TIMER2 : origin = 0x000C10, length = 0x000008
PIE_CTRL : origin = 0x000CE0, length = 0x000020
PIE_VECT : origin = 0x000D00, length = 0x000100
/* Peripheral Frame 1: */
ECANA : origin = 0x006000, length = 0x000040 /* eCAN control and status registers */
ECANA_LAM : origin = 0x006040, length = 0x000040 /* eCAN local acceptance masks */
ECANA_MOTS : origin = 0x006080, length = 0x000040 /* eCAN message object time stamps */
ECANA_MOTO : origin = 0x0060C0, length = 0x000040 /* eCAN object time-out registers */
ECANA_MBOX : origin = 0x006100, length = 0x000100 /* eCAN mailboxes */
/* Peripheral Frame 2: */
SYSTEM : origin = 0x007010, length = 0x000020
SPI_A : origin = 0x007040, length = 0x000010
SCI_A : origin = 0x007050, length = 0x000010
XINTRUPT : origin = 0x007070, length = 0x000010
GPIOMUX : origin = 0x0070C0, length = 0x000020
GPIODAT : origin = 0x0070E0, length = 0x000020
ADC : origin = 0x007100, length = 0x000020
EV_A : origin = 0x007400, length = 0x000040
EV_B : origin = 0x007500, length = 0x000040
SPI_B : origin = 0x007740, length = 0x000010
SCI_B : origin = 0x007750, length = 0x000010
MCBSP_A : origin = 0x007800, length = 0x000040
CSM_PWL : origin = 0x3F7FF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
}
/* Allocate sections to memory blocks.
Note:
codestart user defined section in DSP28_CodeStartBranch.asm used to redirect code
execution when booting to flash
ramfuncs user defined section to store functions that will be copied from Flash into RAM
*/
SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHA PAGE = 0
.pinit : > FLASHA PAGE = 0
.text : > FLASHA PAGE = 0
codestart : > BEGIN PAGE = 0
ramfuncs : LOAD = FLASHD,
RUN = RAML0,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
PAGE = 0
/* Allocate uninitalized data sections: */
.stack : > RAMM0 PAGE = 1
.ebss : > RAML1 PAGE = 1
.esysmem : > RAMH0 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 : > FLASHC PAGE = 0 /* Math Code */
IQmathTables : > ROM PAGE = 0, TYPE = NOLOAD /* Math Tables In ROM */
/* .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
PieVectTableFile : > PIE_VECT, PAGE = 1
/* Allocate Peripheral Frame 0 Register Structures: */
DevEmuRegsFile : > DEV_EMU PAGE = 1
FlashRegsFile : > FLASH_REGS PAGE = 1
CsmRegsFile : > CSM PAGE = 1
XintfRegsFile : > XINTF PAGE = 1
CpuTimer0RegsFile : > CPU_TIMER0 PAGE = 1
CpuTimer1RegsFile : > CPU_TIMER1 PAGE = 1
CpuTimer2RegsFile : > CPU_TIMER2 PAGE = 1
PieCtrlRegsFile : > PIE_CTRL PAGE = 1
PieVectTable : > PIE_VECT 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
/* Allocate Peripheral Frame 1 Register Structures: */
SysCtrlRegsFile : > SYSTEM PAGE = 1
SpiaRegsFile : > SPI_A PAGE = 1
SciaRegsFile : > SCI_A PAGE = 1
XIntruptRegsFile : > XINTRUPT PAGE = 1
GpioMuxRegsFile : > GPIOMUX PAGE = 1
GpioDataRegsFile : > GPIODAT PAGE = 1
AdcRegsFile : > ADC PAGE = 1
EvaRegsFile : > EV_A PAGE = 1
EvbRegsFile : > EV_B PAGE = 1
ScibRegsFile : > SCI_B PAGE = 1
McbspaRegsFile : > MCBSP_A PAGE = 1
/* CSM Password Locations */
CsmPwlFile : > CSM_PWL PAGE = 1
}
,需要注意的是，出现 warning: creating output section XXXXXXXXX without SECTIONS specification 的警告时，标示您的cmd文件中找不到xxxxxx指定的节，必须要加它。
千万不要忘记flash 的初始化，如果能顺利的进入startbranch.asm中的话，而在illegalISR中等待，则很可能是initflash函数没有执行，这个函数需要再SRAM中执行，所以要先把它move到RAM中，然后在run，如下
MemCopy(&RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart);
// Call Flash Initialization to setup flash waitstates
// This function must reside in RAM
InitFlash();
在flash中运行的程序也是可以调试的，这时候的step into （F10），Step over（F11）已经基本不用了。而用assembly step-into 和assembly step-over来替代
place-lower device只是实现了很简单的功能，
1，eCan, 采用了poll transmit AND interrupt receipt,
2，SCI -b,同样采用轮训发送，中断的接收；
3，ADC ，只采样了三路，做了很基本的Float到Hexadecimal 的转换
ADC采样数据发送到eCan interface，pc端只有一个eCan <<==>>USB的adapter《==》virual COM。没有软件，没有开发库（由于我们前期只是把功能实现了），连用多少Baud，数据位，停止位是什么都不知道，费劲吧；在这上面,确实花费我不少的功夫，读出USB的original 数据啊，查找其rule（都是凑出来的），然后解码成原始发送的数据，丢到VC的GUI中显示波形。
ok，言归正传，先修改cmd文件，我的cmd文件如下 MYF2812.cmd（CMD文件的格式，讲的地方很多，google一下吧）
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for da
RAML0 : origin = 0x008000, length = 0x001000 /*L0 SRAM 4K */
OTP : origin = 0x3D7800, length = 0x000800 /* on-chip OTP */
FLASHJ : origin = 0x3D8000, length = 0x002000 /* on-chip FLASH */
FLASHI : origin = 0x3DA000, length = 0x002000 /* on-chip FLASH */
FLASHH : origin = 0x3DC000, length = 0x004000 /* on-chip FLASH */
FLASHG : origin = 0x3E0000, length = 0x004000 /* on-chip FLASH */
FLASHF : origin = 0x3E4000, length = 0x004000 /* on-chip FLASH */
FLASHE : origin = 0x3E8000, length = 0x004000 /* on-chip FLASH */
FLASHD : origin = 0x3EC000, length = 0x004000 /* on-chip FLASH */
FLASHC : origin = 0x3F0000, length = 0x004000 /* 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. */
ROM : origin = 0x3FF000, length = 0x000FC0 /* 引导区的ROM available if MP/MCn=0 */
RESET : origin = 0x3FFFC0, length = 0x000002 /* 复位地址BROM矢量 ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
VECTORS : origin = 0x3FFFC2, length = 0x00003E /*BROM矢量 ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
PAGE 1 : /* Da
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1 */
RAMM0 : origin = 0x000000, length = 0x000400 /* 低地址 数据空间 M0 SRAM */
RAMM1 : origin = 0x000400, length = 0x000400 /* 低地址 数据空间 M1 SRAM */
RAML1 : origin = 0x009000, length = 0x001000 /* 低地址 数据空间 L1 SRAM */
FLASHB : origin = 0x3F4000, length = 0x002000 /* on-chip FLASH */
RAMH0 : origin = 0x3F8000, length = 0x002000 /* 高地址 H0 8K空间*/
/* Peripheral Frame 0: */
DEV_EMU : origin = 0x000880, length = 0x000180
FLASH_REGS : origin = 0x000A80, length = 0x000060
CSM : origin = 0x000AE0, length = 0x000010
XINTF : origin = 0x000B20, length = 0x000020
CPU_TIMER0 : origin = 0x000C00, length = 0x000008
CPU_TIMER1 : origin = 0x000C08, length = 0x000008
CPU_TIMER2 : origin = 0x000C10, length = 0x000008
PIE_CTRL : origin = 0x000CE0, length = 0x000020
PIE_VECT : origin = 0x000D00, length = 0x000100
/* Peripheral Frame 1: */
ECANA : origin = 0x006000, length = 0x000040 /* eCAN control and status registers */
ECANA_LAM : origin = 0x006040, length = 0x000040 /* eCAN local acceptance masks */
ECANA_MOTS : origin = 0x006080, length = 0x000040 /* eCAN message object time stamps */
ECANA_MOTO : origin = 0x0060C0, length = 0x000040 /* eCAN object time-out registers */
ECANA_MBOX : origin = 0x006100, length = 0x000100 /* eCAN mailboxes */
/* Peripheral Frame 2: */
SYSTEM : origin = 0x007010, length = 0x000020
SPI_A : origin = 0x007040, length = 0x000010
SCI_A : origin = 0x007050, length = 0x000010
XINTRUPT : origin = 0x007070, length = 0x000010
GPIOMUX : origin = 0x0070C0, length = 0x000020
GPIODAT : origin = 0x0070E0, length = 0x000020
ADC : origin = 0x007100, length = 0x000020
EV_A : origin = 0x007400, length = 0x000040
EV_B : origin = 0x007500, length = 0x000040
SPI_B : origin = 0x007740, length = 0x000010
SCI_B : origin = 0x007750, length = 0x000010
MCBSP_A : origin = 0x007800, length = 0x000040
CSM_PWL : origin = 0x3F7FF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
}
/* Allocate sections to memory blocks.
Note:
codestart user defined section in DSP28_CodeStartBranch.asm used to redirect co
execution when booting to flash
ramfuncs user defined section to store functions that will be copied from Flash into RAM
*/
SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHA PAGE = 0
.pinit : > FLASHA PAGE = 0
.text : > FLASHA PAGE = 0
codestart : > BEGIN PAGE = 0
ramfuncs : LOAD = FLASHD,
RUN = RAML0,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
PAGE = 0
/* Allocate uninitalized da
.stack : > RAMM0 PAGE = 1
.ebss : > RAML1 PAGE = 1
.esysmem : > RAMH0 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 : > FLASHC PAGE = 0 /* Math Co
IQmathTables : > ROM PAGE = 0, TYPE = NOLOAD /* Math Tables In ROM */
/* .reset is a standard section used by the compiler. It contains the */
/* the address of the start of _c_int00 for C Co
/* 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
PieVectTableFile : > PIE_VECT, PAGE = 1
/* Allocate Peripheral Frame 0 Register Structures: */
DevEmuRegsFile : > DEV_EMU PAGE = 1
FlashRegsFile : > FLASH_REGS PAGE = 1
CsmRegsFile : > CSM PAGE = 1
XintfRegsFile : > XINTF PAGE = 1
CpuTimer0RegsFile : > CPU_TIMER0 PAGE = 1
CpuTimer1RegsFile : > CPU_TIMER1 PAGE = 1
CpuTimer2RegsFile : > CPU_TIMER2 PAGE = 1
PieCtrlRegsFile : > PIE_CTRL PAGE = 1
PieVectTable : > PIE_VECT 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
/* Allocate Peripheral Frame 1 Register Structures: */
SysCtrlRegsFile : > SYSTEM PAGE = 1
SpiaRegsFile : > SPI_A PAGE = 1
SciaRegsFile : > SCI_A PAGE = 1
XIntruptRegsFile : > XINTRUPT PAGE = 1
GpioMuxRegsFile : > GPIOMUX PAGE = 1
GpioDataRegsFile : > GPIODAT PAGE = 1
AdcRegsFile : > ADC PAGE = 1
EvaRegsFile : > EV_A PAGE = 1
EvbRegsFile : > EV_B PAGE = 1
ScibRegsFile : > SCI_B PAGE = 1
McbspaRegsFile : > MCBSP_A PAGE = 1
/* CSM Password Locations */
CsmPwlFile : > CSM_PWL PAGE = 1
}
,需要注意的是，出现 warning: creating output section XXXXXXXXX without SECTIONS specification 的警告时，标示您的cmd文件中找不到xxxxxx指定的节，必须要加它。
千万不要忘记flash 的初始化，如果能顺利的进入startbranch.asm中的话，而在illegalISR中等待，则很可能是initflash函数没有执行，这个函数需要再SRAM中执行，所以要先把它move到RAM中，然后在run，如下
MemCopy(&RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart);
// Call Flash Initialization to setup flash waitstates
// This function must reside in RAM
InitFlash();
在flash中运行的程序也是可以调试的，这时候的step into （F10），Step over（F11）已经基本不用了。而用assembly step-into 和assembly step-over来替代
