I am looking for ECC insertion method (any instruction) on any address with ARM Cortex M4.

I am looking for ECC insertion method (any instruction) on any address with ARM Cortex M4. Some processors sport data line flips using instructions.

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  • Hi,

    do you want to design an MCU based on Cortex-M4?

    If it is right, you can equip ECC logic outside of ICode AHB-Lite instruction interface?

    If you are looking for such MCUs, as far as know, there would be no such MCU of which ECC covered the all instruction address space.

    However, regarding Flash space, almost all MCUs have the flush cache to buffer differences between CPU and Flash access time.

    The flash cache would be always ECC protected.

    Best regrads,

    Yasuhiko Koumoto.

Reply
  • Hi,

    do you want to design an MCU based on Cortex-M4?

    If it is right, you can equip ECC logic outside of ICode AHB-Lite instruction interface?

    If you are looking for such MCUs, as far as know, there would be no such MCU of which ECC covered the all instruction address space.

    However, regarding Flash space, almost all MCUs have the flush cache to buffer differences between CPU and Flash access time.

    The flash cache would be always ECC protected.

    Best regrads,

    Yasuhiko Koumoto.

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