• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 99 subscribers
  • Views 193 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SRIO memory mapping possible?

Heinrich Schwarz
Intellectual 450 points

Hi,

Can SRIO also be used in a memory-mapped mode? As far as I understood, directIO is not memory-mapped, but only does allow r/w explicit access to a remote memory address.

What we are trying to achieve is to do 2D memory copy operations using EDMA3 over a SRIO link, as it is possible with Hyperlink.

- Heinrich

  • 0
    TI__Mastermind 23525 points

    SRIO directIO accesses allow you to read/write to a given address with contiguous # of bytes.  Starting with Keystone II devices, you can access up to 1MB of contiguous space in a single programmation of the LSU.  If using the EDMA to drive the LSU, any non-contiguous memory accesses would require additional PaRam entries.

    Regards,

    Travis