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Original question:

TMS320F28335: What is the function of TRST pin in DSP TMS320F28335?

TMS320F28032: Where the RAMM0 is reserved for Debug, starting with 0x000050, customers are using this space, will it affect?

Shaoxing Ke
Expert 3590 points
Part Number: TMS320F28032

Hi Every one,

    Like F28035_RAM_CLA_lnk.cmd similar programs where the RAMM0 is reserved for Debug, starting with 0x000050,  customers are using this space, will it affect?

    And are there any details about this section? What impact will it have if the customer needs to use this space?

    If so, how does it work? Or what will be affected? 

    At the same time, are there requirements for this section for F28032? This is a very urgent matter for the customer!!!

  • 0
    TI__Guru* 77460 points

    Shaoxing,

    This space from 0x2 - 0x4E is used by the BootROM as its stack.  More details are in the TRM https://www.ti.com/lit/sprui10  on page 183 section 2.2.8.  Below is the note from that section:

    If code or data is bootloaded into the address range 0x0002- 0x004E,there is no error checking to prevent it from corrupting the bootROM stack.

    This would only apply during the boot process, so if this memory were used post boot, it should be OK.

    Best,

    Matthew