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inquiry about tms320f28335 bootloader.

choi wonseok
Intellectual 430 points
Other Parts Discussed in Thread: TMS320F28335

I am using TMS320F28335.

i am refering to TMS320X2833X BOOT ROM REFERENCE GUIDE which have a literature number(SPRU963A).

SPRU936A Provide bootloader code. and i want to modify boot loader function.

because i want to boot to flash(FLASHA SECTOR).

is it possible?

If not possible? please tell me how i can update application code which in saved in  flashA sector

  • 0
    Intellectual 430 points

    HI

    I am using TMS320F28335.

    I want to boot my board with uart com. Following is the my plan to boot my board.

    1. DSP will receive hex file through UART. Hex file is made by hex2000.EXE(HEX utility) to updata Application CODE to DSP.

    2. DSP will write HEX CODE to internal flash(FLASHA sector) 0x338000 to boot to flash.

    TO accomplish above. I think that I should modify linker command file.

    Following is cmd file i fixed.

    but i don't know why following is wrong.

    particulary. I tryed to divide all sector Load address and run address.

    becasuse, whenever i updata application code with UART. i must acesss FLASHA to write hexfile while DSP is running.

    please check my cmd file.

  • 0
    Intellectual 430 points

    0027.468CMD.TXTHI

    I am using TMS320F28335.

    I want to boot my board with uart com. Following is the my plan to boot my board.

    1. DSP will receive hex file through UART. Hex file is made by hex2000.EXE(HEX utility) to updata Application CODE to DSP.

    2. DSP will write HEX CODE to internal flash(FLASHA sector) 0x338000 to boot to flash.

    TO accomplish above. I think that I should modify linker command file.

    Following is cmd file i fixed.

    but i don't know why following is wrong.

    particulary. I tryed to divide all sector Load address and run address.

    becasuse, whenever i updata application code with UART. i must acesss FLASHA to write hexfile while DSP is running.

    please check my cmd file.