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Starterware/TMDSPLCKITV4-CEN: G3-PLC DDK v7.8 LMAC mode

Shailja Shukla
Prodigy 240 points

Part Number: TMDSPLCKITV4-CEN
Other Parts Discussed in Thread: TMS320F28PLC84, TMS320F28062, AFE031

Tool/software: Starterware

Hello,

I am using TMDSPLCKITV4-CEN kit with G3-PLC DDK v7.8, for both BN and SN.  I am trying to use the Lower MAC Mode (LMAC) for data transfer. 

From the document (TI_G3_host_msg.pdf), looking at Data_Transfer.Request for LMAC, I see that I require HCT Connection Handle from CONNECT message. The document doesn’t list the CONNECT message.

Is there some documentation on how to use the LMAC mode, with G3 DDK v7.8 ?

Any help would be appreciated.

Kind regards,

Shailja Shukla

  • 0
    Prodigy 240 points
    I am trying to bypass the networking layer and hence the LMAC mode.
  • 0 in reply to Shailja Shukla
    TI__Genius 17175 points
    Hi Shailja,

    I'm writing to let you know that someone from the C2000 team has been assigned to your post and should be answering shortly.

    Sean
  • 0 in reply to Sean Bigley
    Prodigy 240 points
    Hi Sean,

    Thank you for the update.

    Additional information for my product setup: I am using TMDSPLCKITV4-CEN type configuration (TMS320f28PLC84 PLC modem and TMS320F28062 application MCU) for my custom products as well. At this moment I am using v7.8 firmware G3-PLC DDK.

    I am trying to bypass the networking layer and hence want to use the LMAC mode. Is it possible to do so with the above mentioned hardware and G3-PLC DDk v7.8 ?

    I would appreciate any documents or any other information on to use the LMAC mode.

    Awaiting your reply.

    Kind regards,
    Shailja Shukla
  • 0 in reply to Sean Bigley
    Prodigy 240 points

    Hi Sean,

    I am still waiting for a reply for my question. I have been looking around in the available documents, TI e2e forums, but I don't see any concrete procedure described to use the LMAC mode, either with DC (G3 DDK v4.8) or MINIDC(G3 DDK v7.8) configuration.

    I would really appreciate if somebody could direct me to documents/information to use LMAC mode.


    Kind regards,
    Shailja Shukla

  • 0 in reply to Sean Bigley
    Prodigy 200 points

    hi,

    is t possible to have someone to hhelp me too here?  

    i posted an answer 2 days ago (i have to finnish my poject this week)

  • 0
    Prodigy 25 points

    If you just want a simple tx and rx application, suggest you to have a look at the tx rx example. For most of my application working on phy layer is enough. The documentation in the DDK is vague but if you take time to gone through the code, then it would be a bit easier.

    Hope if you don't mind if i "borrow" your thread.

    I am still using DDK from V7316... The code inside are developed from 2009 and there are plenty of bugs, E.g. the first preamble have a glitch in AFE031 DAC and need to modifiy the HAL to adjust the first DMA transfer packet size from 768 to 650 to prevent it...

    Also in ROBO mode (mcs=0), with Tone start 0x10, length 0x10, mask FF FF 00 00 00 00 00 00 00 00 00 00. The maximum transfer bytes cannot be more than 50 otherwise it will cause the Rx end to have packet CRC errors...

    Wondering if I can have contact of someone in the PLC team and better way to purchase or obtain the latest DDK and report bugs.

    Cheers

  • 0 in reply to Yuxian Tao
    Prodigy 240 points
    You can find latest DDK for G3-PLC from here : www.ti.com/.../ti-plc-g3-cenelec-sn
  • 0 in reply to Shailja Shukla
    Prodigy 25 points
    Many thanks, this is SDK. The DDK will have more low level librarys for example HAL or PHY