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EDMA3 LLD for C6457?

Tim James
Prodigy 160 points
Other Parts Discussed in Thread: TMS320C6457

Hi

Is there a version of the EDMA3 LLD supporting the C6457?  The C6455 to C6457 Software Migration wiki page suggests that EDMA "software changes may be necessary" so can I assume that I cannot simply use the library files for the C6455?

Following on from this, and assuming that there is a version of the EDMA3 LLD for the C6457, is there an app note describing how to migrate C6455 code using the CSL EDMA3 routines to use the EDMA3 LLD (specifically on the C6457).

Thanks in advance

Tim

  • 0
    TI__Guru* 84110 points

    Tim,

    The EDMA3 LLD Release Notes do not list C6457 support, so my answer is that there is no EDMA3 LLD support for the C6457.

    The TMS320C6457 Product Folder does list a CSL library for the C6457, so this should make it easier to migrate from C6455 CSL EDMA3 routines to C6457 CSL EDMA3 routines. But a simple software library change may not be sufficient. The notes in the Wiki page you list above tell you the items that need to be considered and possibly changed in your software

    Do any of the items listed in the Wiki article apply to your application?

    Regards,
    RandyP

     

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  • 0
    Intellectual 710 points

    Normal 0 false false false RU X-NONE X-NONE

    You can use LLD for c6455 or you can port LLD to c6457. It is simple.

    I have used LLD for c6455 in my projects. I just use only EDMA Channels which can be used in both processors.

  • 0 in reply to sergey manuhin
    Prodigy 160 points

    Thanks, Sergey.  It is useful to know that you have successfully been able to use the C6455 library on the C6457 without modification.

    Tim