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Original question:

[FAQ] F05 Flash: Can interrupts be serviced while programming or erasing flash?

TMS320F280025: Flash API disable interrupts rule also apply to this device?

Emma Wang
Expert 5290 points

Part Number: TMS320F280025

Hi Lori,

My customer tell me they sometime can not go into ISR, when do the flash API.

So I want to check whether this rule you motioned in this thread also apply to F28002X or the other devices?

BR

Emma

  • +1
    TI__Guru* 87155 points

    Emma,

    This post is assigned to me.  

    FAQ that you referred to is not applicable for F280025.

    F280025 flash API is interruptible.  

    Few things that your customer can check:

    1) Flash API should be executed from RAM and not flash.

    2) ISR should be mapped to execute from RAM (load to flash and execute from RAM as you know) and not from flash.  This is to prevent flash fetches during an active flash program/erase.

    3) ISR should not access anything (data) from flash.  This is to prevent flash reads during an active flash program/erase.

    Note: I updated the title of this thread to avoid tech name.

    Thanks and regards,
    Vamsi