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TMS320DM8148: VPDMA

Roni Blaut
Prodigy 20 points

Part Number: TMS320DM8148

Hi

I am operate the VPDMA, I am using version 1AD for the VPDMA_firmware.

base on SPRUGZ8G from 14 November 2011 revised 2016

if I understand the Datasheet 

BIT RDY VPDMA-list_attr should mark that I can reload or load different  LIST_NUM.

   

it is look like this is no different between reg VPDMA-list_attr - RDY to VPDMA_list_stat_sync .

is it OK ?

is there a newer version for the VPDMA ?

I need a machine that feed the VPDMA with new data all the time .

Thanks 

  • 0
    TI__Mastermind 49593 points

    Due to a holiday, half of our team is currently out of office. Please expect a 1~2 day delay in responses.

    Apologies for the delay, and thank you for you patience.

  • 0 in reply to Praveen Rao
    TI__Mastermind 49593 points

    Hello,

    There is no newer version for VPDMA firmware.

    The different ways of configuring VPDMA for data transfers is described in the SPRUGZ8G User guide chapter 12.2.13.5.

    As it says,  A regular list executes each descriptor in order until the end of the list is reached. When the end of the list is reached an interrupt is sent and the list can be reused by software. A regular list can contain any descriptor types. Software creates the list at some location in external memory. After completing writing the list software then writes the location of the list to the LIST_ADDRESS register and then writes the LIST_ATTRIBUTE register. If the NUMBER in the LIST_ATTRIBUTE is not an active list then the List will be loaded and begin to execute the next time the List Manager gets to IDLE after processing previous loaded lists. If the NUMBER in the LIST_ATTRIBUTE is busy then the LIST_ADDRESS and LIST_ATTRIBUTE registers will be locked until the active list specified by NUMBER completes. Any writes to the LIST_ADDRESS or LIST_ATTRIBUTE will result in mmr_wready being held inactive until the list is freed.

    Thanks.

  • 0 in reply to Praveen Rao
    TI__Mastermind 49593 points

    Please Note: The support for https://www.ti.com/product/TMS320DM8148 is now offered via 3P.

    Please refer to the TI Product Page (https://www.ti.com/product/TMS320DM8148) for the suggested options.

    Thanks.