TMS320F2800137: 如何切換Interrupt Vector Table

William Chen

Part Number: TMS320F2800137

各位先進好:

我正在進行Bootloader之設計，Bootloader有自己的Interrupt Vector Table，Application也有自己的Interrupt Vector Table，當我從Bootloader跳轉Application時，

我要如何切換Interrupt Vector Table，謝謝

2 年多前

0 Yale Li 李耀先 2 年多前

TI__Guru 65745 points

Hi William,

我已经向相关工程师询问。有了结果会第一时间回复

0 Yale Li 李耀先 2 年多前

TI__Guru 65745 points

Hi William,

程序跳到主程序后，重新初始化中断向量表，之后再重新使能中断。

0 William Chen 2 年多前回复 Yale Li 李耀先

Prodigy 50 points

Hi Yale,

感謝您的回覆，您的意思是跳到主程序後，只需要重新將中斷Re-map，然後重新始能中斷就可以嗎?謝謝。

0 Yale Li 李耀先 2 年多前回复 William Chen

TI__Guru 65745 points

Hi William,

C2000器件的中断向量表是固定的，所以不需要重新映射，程序跳转之后重新初始化、并在初始化之后重新使能中断即可。

您的bootloader中有相应的中断程序，主程序中也有相应的中断的程序，它们使用的中断向量表就是datasheet中提供的，这个是固定的。

所以您只需要在bootloader与主程序中分别初始化中断向量表。

通俗来讲就是中断向量表是不变的，只需要改变链接到中断向量表的中断程序即可。

+1 William Chen 2 年多前回复 Yale Li 李耀先

Prodigy 50 points

Hi Yale

了解了，謝謝您。

0 Yale Li 李耀先 2 年多前回复 William Chen

TI__Guru 65745 points

Hi William,

不客气。有什么问题欢迎随时提问

+1 William Chen 2 年多前回复 Yale Li 李耀先

Prodigy 50 points

Hi Yale

每次reset後，都必須從Bootloader跳轉到APP，那麼現在又有一些問題，就是我要如何從Bootloader跳轉到APP，APP的cmd file又該如何正確修改(APP起始位置為0x0008C000)，下列代碼是我修改過的，謝謝。

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MEMORY
{
   BEGIN_APP        : origin = 0x0008C000, length = 0x00000002
   BOOT_RSVD        : origin = 0x00000002, length = 0x00000126
   RAMM0            : origin = 0x00000128, length = 0x000002D8
   RAMM1            : origin = 0x00000400, length = 0x000003F8
   // RAMM1_RSVD       : origin = 0x000007F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
   RAMLS0           : origin = 0x00008000, length = 0x00002000
   RAMLS1           : origin = 0x0000A000, length = 0x00001FF8
   // RAMLS1_RSVD      : origin = 0x0000BFF8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
   RESET            : origin = 0x003FFFC0, length = 0x00000002
   /* Flash sectors */
   FLASH_BANK0_SEC_0_7     : origin = 0x080002, length = 0x1FFE  /* on-chip Flash */
   FLASH_BANK0_SEC_8_15    : origin = 0x082000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_16_23   : origin = 0x084000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_24_31   : origin = 0x086000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_32_29   : origin = 0x088000, length = 0x2000  /* on-chip Flash */
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

MEMORY
{
   BEGIN_APP        : origin = 0x0008C000, length = 0x00000002
   BOOT_RSVD        : origin = 0x00000002, length = 0x00000126

   RAMM0            : origin = 0x00000128, length = 0x000002D8
   RAMM1            : origin = 0x00000400, length = 0x000003F8
   // RAMM1_RSVD       : origin = 0x000007F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

   RAMLS0           : origin = 0x00008000, length = 0x00002000
   RAMLS1           : origin = 0x0000A000, length = 0x00001FF8
   // RAMLS1_RSVD      : origin = 0x0000BFF8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

   RESET            : origin = 0x003FFFC0, length = 0x00000002

   /* Flash sectors */
   FLASH_BANK0_SEC_0_7     : origin = 0x080002, length = 0x1FFE  /* on-chip Flash */
   FLASH_BANK0_SEC_8_15    : origin = 0x082000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_16_23   : origin = 0x084000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_24_31   : origin = 0x086000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_32_29   : origin = 0x088000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_40_47   : origin = 0x08A000, length = 0x2000  /* on-chip Flash */
   //FLASH_BANK0_SEC_48_55   : origin = 0x08C000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_48_55   : origin = 0x08C002, length = 0x1FFE  /* on-chip Flash */
   FLASH_BANK0_SEC_56_63   : origin = 0x08E000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_64_71   : origin = 0x090000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_72_79   : origin = 0x092000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_80_87   : origin = 0x094000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_88_95   : origin = 0x096000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_96_103  : origin = 0x098000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_104_111 : origin = 0x09A000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_112_119 : origin = 0x09C000, length = 0x2000  /* on-chip Flash */
   FLASH_BANK0_SEC_120_127 : origin = 0x09E000, length = 0x1FF0  /* on-chip Flash */

   // FLASH_BANK0_SEC_127_RSVD : origin = 0x0A0FF0, length = 0x0010  /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
}

SECTIONS
{
   codestart        : > BEGIN_APP //BEGIN

   //.text            : >> FLASH_BANK0_SEC_8_15 | FLASH_BANK0_SEC_16_23 | FLASH_BANK0_SEC_24_31, ALIGN(8)

   //.cinit           : > FLASH_BANK0_SEC_0_7, ALIGN(8)
   //.switch          : > FLASH_BANK0_SEC_0_7, ALIGN(8)

   .text            : >> FLASH_BANK0_SEC_56_63 | FLASH_BANK0_SEC_64_71 | FLASH_BANK0_SEC_72_79, ALIGN(8)

   .cinit           : > FLASH_BANK0_SEC_48_55, ALIGN(8)
   .switch          : > FLASH_BANK0_SEC_48_55, ALIGN(8)

   .reset           : > RESET,  TYPE = DSECT /* not used, */

   .stack           : > RAMM1

#if defined(__TI_EABI__)
   .bss             : > RAMLS0
   .bss:output      : > RAMLS0
   //.init_array      : >> FLASH_BANK0_SEC_0_7, ALIGN(8)
   //.const           : >> FLASH_BANK0_SEC_32_29, ALIGN(8)
   .init_array      : >> FLASH_BANK0_SEC_48_55, ALIGN(8)
   .const           : >> FLASH_BANK0_SEC_80_87, ALIGN(8)
   .data            : > RAMLS0
   .sysmem          : > RAMLS0
  .bss:cio          : > RAMLS0
#else
   //.pinit           : >> FLASH_BANK0_SEC_0_7, ALIGN(8)
   .pinit           : >> FLASH_BANK0_SEC_48_55, ALIGN(8)
   .ebss            : > RAMLS0
   //.econst          : >> FLASH_BANK0_SEC_32_29, ALIGN(8)
   .econst          : >> FLASH_BANK0_SEC_80_87, ALIGN(8)
   .esysmem         : > RAMLS0
   .cio             : > RAMLS0
#endif

#if defined(__TI_EABI__)
   //.TI.ramfunc      : LOAD = FLASH_BANK0_SEC_0_7,
   .TI.ramfunc      : LOAD = FLASH_BANK0_SEC_48_55,
                      RUN = RAMLS0,
                      LOAD_START(RamfuncsLoadStart),
                      LOAD_SIZE(RamfuncsLoadSize),
                      LOAD_END(RamfuncsLoadEnd),
                      RUN_START(RamfuncsRunStart),
                      RUN_SIZE(RamfuncsRunSize),
                      RUN_END(RamfuncsRunEnd),
                      ALIGN(8)
#else
   //.TI.ramfunc      : LOAD = FLASH_BANK0_SEC_0_7,
   .TI.ramfunc      : LOAD = FLASH_BANK0_SEC_48_55,
                      RUN = RAMLS0,
                      LOAD_START(_RamfuncsLoadStart),
                      LOAD_SIZE(_RamfuncsLoadSize),
                      LOAD_END(_RamfuncsLoadEnd),
                      RUN_START(_RamfuncsRunStart),
                      RUN_SIZE(_RamfuncsRunSize),
                      RUN_END(_RamfuncsRunEnd),
                      ALIGN(8)
#endif

    /*  Allocate IQ math areas: */
   //IQmath           : > FLASH_BANK0_SEC_32_29, ALIGN(8)
   //IQmathTables     : > FLASH_BANK0_SEC_32_29, ALIGN(8)
   IQmath           : > FLASH_BANK0_SEC_80_87, ALIGN(8)
   IQmathTables     : > FLASH_BANK0_SEC_80_87, ALIGN(8)
}

0 Yale Li 李耀先 2 年多前回复 William Chen

TI__Guru 65745 points

Hi William,

如果需要新的技术支持请点击右上角红色按钮提出新问题，

如果与此问题相关则点击橙色按钮提出相关问题，

这样便于我们识别及跟进，以为您提供更好的技术支持。

谢谢

Yale

0 William Chen 2 年多前回复 Yale Li 李耀先

Prodigy 50 points

Hi Yale

好的，我已提出新問題，謝謝。

0 Yale Li 李耀先 2 年多前回复 William Chen

TI__Guru 65745 points

好的

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TMS320F2800137: 如何切換Interrupt Vector Table