• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 98 subscribers
  • Views 387 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.

DioLib's edma transfer data size limit !!!

Mounir BAHTAT
Prodigy 220 points

Hello,

I'm using the library DioLib on the EVM board with C6474 DSPs .. I want to send data > 4ko using rapidIO so I used the example on DioLib using edma .. but it seems that there's a limit on the data size which is 64 ko .. how to do to send larger data without CPU intervention using DioLib ?

Thank you ..

  • 0
    TI__Guru* 84110 points

    Mounir BAHTAT,

    Questions to you to help us understand the specifics of your question:

    What is "ko"? Is that the same a kilo bytes, kB?

    Which specific diolib version are you using?

    Which specific example folder are you modifying?

    What are you modifying to get up to 64 "ko"?

    What indicates to you that there is a limit?

    Regards,
    RandyP

  • 0 in reply to RandyP
    Prodigy 220 points

    I found the answer for my question

    I was using the DioLibrary 1.0.0, it was a bug on that version, so I downloaded the last version 1.1.0

    They mentioned that bug in an Excel file, in the /doc folder :

    "DIO streaming request bigger than 64 Kbytes are truncated to 64 Kbytes"

    I'm now able to send data without limits ..

    I meant by "ko" KBytes in fact .. sorry for writing it in french ; "ko"="kilo-octet"

     

    Thanks RandyP

    Best Regards

    Mounir