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GGale2's avatar
GGale2
Icon for New Contributor rankNew Contributor
6 years ago

I have configured a GXB transceiver to RX Simplex. But I get an error message in Quartus 18.1 pro related to duplex channel cluster constraints

I have configured a GXB transceiver to be RX Simplex. I get the next error message in Quartus 18.1 Pro

Error(14566): The Fitter cannot place 4 periphery component(s) due to conflicts with existing constraints (4 HSSI_DUPLEX_CHANNEL_CLUSTER(s)). Fix the errors described in the submessages, and then rerun the Fitter. Error(175020): The Fitter cannot place logic HSSI_DUPLEX_CHANNEL_CLUSTER that is part of Transceiver Native PHY Intel Arria 10/Cyclone 10 FPGA IP gxb_rtx_altera_xcvr_native_a10_181_lfm4w2i in region (224, 6) to (224, 23), to which it is constrained, because there are no valid locations in the region for logic of this type. Info(14596): Information about the failing component(s): Info(175028): The HSSI_DUPLEX_CHANNEL_CLUSTER name(s): gxb_rtx_i|xcvr_native_a10_0|g_xcvr_native_insts[0].twentynm_xcvr_native_inst|twentynm_xcvr_native_inst|inst_twentynm_pma|gen_twentynm_hssi_pma_rx_buf.inst_twentynm_hssi_pma_rx_buf~HSSI_RX_CHANNEL_CLUSTER0~HSSI_DUPLEX_CHANNEL_CLUSTER0

Error(16234): No legal location could be found out of 1 considered location(s). Reasons why each location could not be used are summarized below:

Info(175015): The I/O pad FMC_RX_P[0] is constrained to the location PIN_AW7 due to: User Location Constraints (PIN_AW7)

Info(14709): The constrained I/O pad is contained within a pin, which is contained within a HSSI_RX_CHANNEL_CLUSTER, which is contained within this HSSI_DUPLEX_CHANNEL_CLUSTER

Error(18695): Could not find a legal chained placement. (1 location affected)

Info(175029): HSSI_DUPLEX_CHANNEL_CLUSTER containing PIN_BC7

What are the steps to take to solve this error or is this a tool bug?

8 Replies

  • CheepinC_altera's avatar
    CheepinC_altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi,

    As I understand it, you are observing some Fitter error in your design related to simple Native PHY RX. This seems to be related to the placement rules. To facilitate further debugging, would you mind to help sharing with me a simple test design with only the Native PHY instances which could replicate similar error. This would allow us to focus only on Native PHY and isolate out non-XCVR related logic or module.

    It would be great also if you could share with me a high level XCVR placement that you are trying to implement ie where is the RX/TX/duplex XCVR placed in a XCVR bank together with the target data rate so that I could have a better understanding on your placement.

    Please let me know if there is any concern. Thank you.

    Best regards,

    Chee Pin

    • GGale2's avatar
      GGale2
      Icon for New Contributor rankNew Contributor
      6 years ago
      Dear Pin I will generate such project for you with the native PHY RX implemented only and when this project produces the same errors I will send a QAR file to you. Regards Guido Galeazzi
    • GGale2's avatar
      GGale2
      Icon for New Contributor rankNew Contributor
      6 years ago
      Dear Chee Pin Attached is the native Rx_simplex phy that produces the fitter error. Please have a look at it and tell which steps to take to get rid of this error. Best Regards Guido Galeazzi
  • CheepinC_altera's avatar
    CheepinC_altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi Guido,

    By the way, it seems like I am unable to locate your attachment of design. Would you mind to reattach? thank you very much.

    • GGale2's avatar
      GGale2
      Icon for New Contributor rankNew Contributor
      6 years ago
      Dear Chee Pin I try a zipped folder first. When you still can’t receive the folder, I can send it with we transfer. In that case I need an email address to where I can send it. Regards Guido Galeazzi Dimenco
  • CheepinC_altera's avatar
    CheepinC_altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi Guido,

    Sorry for the delay. I have been out for the past week. It seems like I am still unable to see the ZIP attached. However, as I understand it, Armin has also helped to file an IPS case on behalf of you on this and we have shared the resolution through the IPS case. To facilitate subsequent discussion and tracking purpose, it would be great that we use the IPS for further follow up.

    Please let me know if there is any concern. Thank you.

    Best regards,

    Chee Pin

    • GGale2's avatar
      GGale2
      Icon for New Contributor rankNew Contributor
      6 years ago
      Hi Chee Pin Tanks for the support. I will discuss with Armin for the follow up. Regards Guido
  • CheepinC_altera's avatar
    CheepinC_altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi Guido,

    Thanks lot. Please feel free to let me know if you have any issue in getting update. Thank you.