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dncmrc1's avatar
dncmrc1
Icon for Occasional Contributor rankOccasional Contributor
5 months ago
Solved

Agilex 7 slew rate reconfiguration

We need to change dynamically (reconfigure) the transceiver TX slew rate. How can that be done?  
Transceiver
  • CheepinC_altera's avatar
    CheepinC_altera
    4 months ago

    Hi,

     

    For configuring TX Equalization on the Agilex™ 7 FGT PMA, you can use register 0x47830, which controls the TX EQ parameters. You may also refer to the proc set_txeq_settings procedure in the file ttk_helper_ftile_9_25.tcl, as it provides an example of how these settings are applied.

     

    Feel free to let me know if you have any further questions. Thank you.

dncmrc1's avatar
dncmrc1
Icon for Occasional Contributor rankOccasional Contributor
4 months ago

Hi,

I meant namely the slew rate. But we will need to change also some other of the PMA settings (like pre-emphasis, yes).  Can you please provide a list of the registers where these parameters can be reconfigured?

CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
4 months ago

Hi,

 

For configuring TX Equalization on the Agilex™ 7 FGT PMA, you can use register 0x47830, which controls the TX EQ parameters. You may also refer to the proc set_txeq_settings procedure in the file ttk_helper_ftile_9_25.tcl, as it provides an example of how these settings are applied.

 

Feel free to let me know if you have any further questions. Thank you.

  • dncmrc1's avatar
    dncmrc1
    Icon for Occasional Contributor rankOccasional Contributor
    4 months ago

    Hi,

    Any hints about where file ttk_helper_ftile_9_25.tcl can be found?

    • CheepinC_altera's avatar
      CheepinC_altera
      Icon for Regular Contributor rankRegular Contributor
      4 months ago

      Hi,

       

      Sorry for the delay. Regarding the ttk_helper_ftile_9_25.tcl, you can download it from https://cdrdv2.intel.com/v1/dl/getContent/850450 . You may refer to F-Tile Architecture and PMA and FEC Direct PHY IP User Guide -> "A.5. Transceiver Toolkit Helper Script" for further details.

       

      Thank you.