cmd 配置

CMD的专业名称叫链接器配置文件，是存放链接器的配置信息的，我们简称为命令文件，其中比较关键的就是MEMORY和SECTIONS两个伪指令的使用，

DSP2812的CMD详细配置例子

MEMORY
{
PAGE 0:    /* Program Memory */
   ZONE0       : origin = 0x002000, length = 0x002000     /* XINTF zone 0 */
   ZONE1       : origin = 0x004000, length = 0x002000     /* XINTF zone 1 */
   RAML0       : origin = 0x008000, length = 0x001000     /* on-chip RAM block L0 */
   ZONE2       : origin = 0x080000, length = 0x080000     /* XINTF zone 2 */
   ZONE6       : origin = 0x100000, length = 0x080000     /* XINTF zone 6 */
   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 = 0x002000     /* on-chip FLASH */
  
   BEGIN       : origin = 0x3F8000, length = 0x000002     /* Part of H0.  Used for "boot to H0" bootloader mode. */
  
   PRAMH0      : origin = 0x3F8002, length = 0x001FFE  /*0xFFE    /* portion of H0 we''ve mapped to PAGE 0 */
/* ZONE7       : origin = 0x3FC000, length = 0x003FC0     /* XINTF zone 7 available if MP/MCn=1 */
 
   ROM         : origin = 0x3FF000, length = 0x000FC0     /* boot ROM available if MP/MCn=0 */
   RESET       : origin = 0x3FFFC0, length = 0x000002     /* part of boot ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
   VECTORS     : origin = 0x3FFFC2, length = 0x00003E     /* part of boot ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */

 AGE 1 :   /* Data Memory */
   RAMM0       : origin = 0x000000, length = 0x000400     /* on-chip RAM block M0 */
   RAMM1       : origin = 0x000400, length = 0x000400     /* on-chip RAM block M1 */
   DEV_EMU     : origin = 0x000880, length = 0x000180     /* device emulation registers */
   FLASH_REGS  : origin = 0x000A80, length = 0x000060     /* FLASH registers */
   CSM         : origin = 0x000AE0, length = 0x000010     /* code security module registers */
   XINTF       : origin = 0x000B20, length = 0x000020     /* external interface registers */
   CPU_TIMER0  : origin = 0x000C00, length = 0x000008     /* CPU Timer0 registers (CPU Timer1 and Timer2 are reserved for BIOS)*/
   PIE_CTRL    : origin = 0x000CE0, length = 0x000020     /* PIE control registers */
   PIE_VECT    : origin = 0x000D00, length = 0x000100     /* PIE vector table */
   ECAN_A      : origin = 0x006000, length = 0x000100     /* eCAN registers */
   ECAN_AMBOX  : origin = 0x006100, length = 0x000100     /* eCAN mailboxes */
   SYSTEM      : origin = 0x007010, length = 0x000020     /* System control registers */
   SPI_A       : origin = 0x007040, length = 0x000010     /* SPI registers */
   SCI_A       : origin = 0x007050, length = 0x000010     /* SCI-A registers */
   XINTRUPT    : origin = 0x007070, length = 0x000010     /* external interrupt registers */
   GPIOMUX     : origin = 0x0070C0, length = 0x000020     /* GPIO mux registers */
   GPIODAT     : origin = 0x0070E0, length = 0x000020     /* GPIO data registers */
   ADC         : origin = 0x007100, length = 0x000020     /* ADC registers */
   EV_A        : origin = 0x007400, length = 0x000040     /* Event Manager A registers */
   EV_B        : origin = 0x007500, length = 0x000040     /* Event Manager B registers */
   SCI_B       : origin = 0x007750, length = 0x000010     /* SCI-B registers */
   MCBSP_A     : origin = 0x007800, length = 0x000040     /* McBSP registers */
   RAML1       : origin = 0x009000, length = 0x001000     /* on-chip RAM block L1 */
   FLASHB      : origin = 0x3F4000, length = 0x002000     /* on-chip FLASH */
   CSM_PWL     : origin = 0x3F7FF8, length = 0x000008     /* CSM password locations in FLASHA */
   DRAMH0      : origin = 0x3f9000, length = 0x001000     /* portion of H0 we''ve mapped to PAGE 1 */
}

SECTIONS
{
/*** Compiler Required Sections ***/
   .text             : > PRAMH0,      PAGE = 0
   .cinit            : > PRAMH0,      PAGE = 0
   .stack            : > RAMM1,       PAGE = 1
   .bss              : > RAMM0,       PAGE = 1
   .ebss             : > RAMM0,       PAGE = 1
   .const            : > RAMM0,       PAGE = 1
   .econst           : > RAMM0,       PAGE = 1     
   .sysmem           : > RAMM1,       PAGE = 1
   .reset            : > RESET,       PAGE = 0, TYPE = DSECT  /* we are not using the .reset section */

/*** User Defined Sections ***/
   codestart         : > BEGIN,      PAGE = 0                /* Used by file DSP28_CodeStartBranch.asm */

/*** 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 
   PieCtrlRegsFile   : > PIE_CTRL,    PAGE = 1     
   PieVectTable      : > PIE_VECT,    PAGE = 1

/*** 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

/*** Peripheral Frame 2 Register Structures ***/
   ECanaRegsFile     : > ECAN_A,      PAGE = 1  
   ECanaMboxesFile   : > ECAN_AMBOX   PAGE = 1

/*** Code Security Password Locations ***/
   CsmPwlFile        : > CSM_PWL,     PAGE = 1

}