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Questions about the AVNET Network FMC Module

jb-ch

Hello,

 

I am Jean-Baptiste and I am currently working on ip designs for Ethernet based network. I currently have a setup with a Netpga CML card on which is plugged the Avnet Network FMC module.

https://www.avnet.com/shop/us/products/avnet-engineering-services/aes-fmc-netw1-g-3074457345635205181/

 

The entire design is pure VHDL thus there is no SW part.

The vadj is set to 1.8V and the power led on the network FMC module shows that vadj value on the dedicated leds.

I am able to properly use part of the board but I do have some issues using this setup.

 

1) I am running the same MDC/MDIO configuration on port 1 and port 2 of the Avnet Network FMC. Only Port 1 is up and running (I can see Ethernet traffic with wire-shark). However, the second port remains inactive and the activity leds are not showing anything (doesn't matter the applied speed 10/100/1000 Mbit/s).

2) The users leds on the boards are not very bright, it seems that there is not enough intensity in the applied power signal.

 

Is anyone has experimented some similar issue using this avnet ethernet fmc module?

(Note that I have tried to remove Q1 as described in the Erratum but it doesn't fix my issue with port 2).

 

Many thanks,

Best regards,

Jean-Baptiste

Parents

  • Hello,

     

    Thanks for your time considering my question.

     

    @Joshua : The card behave in the same way if I am only using port 2 in my setup or not. The Ethernet port 2 remains nonfunctional all the time. Port 1 is up an running with the exact same configuration (from the MDIO/MDC bus).

     

    @Daniel: Yes the cards I am using are the netfpga cml from the link you sent. I am using the 4 others Ethernet ports in the same time (I am implementing a customized ethernet switch) and all 4 onboard ports of the Netfpga cards are working as well as the port 1 of the Ethernet FMC is working but not the Port 2. Regarding the external power supply, I am using a dedicated external power supply for PC which provides 750W (Total) it is well calibrated for the Netfpga boards.

     

    It can be the Netfpga cml which has issue with FMC power...to investigate further, I might need to test with another board (than the netfpga cml).

    If you have some more ideas/questions feel free to ask image

     

    Many thanks,

    Jean-Baptiste

Reply

  • Hello,

     

    Thanks for your time considering my question.

     

    @Joshua : The card behave in the same way if I am only using port 2 in my setup or not. The Ethernet port 2 remains nonfunctional all the time. Port 1 is up an running with the exact same configuration (from the MDIO/MDC bus).

     

    @Daniel: Yes the cards I am using are the netfpga cml from the link you sent. I am using the 4 others Ethernet ports in the same time (I am implementing a customized ethernet switch) and all 4 onboard ports of the Netfpga cards are working as well as the port 1 of the Ethernet FMC is working but not the Port 2. Regarding the external power supply, I am using a dedicated external power supply for PC which provides 750W (Total) it is well calibrated for the Netfpga boards.

     

    It can be the Netfpga cml which has issue with FMC power...to investigate further, I might need to test with another board (than the netfpga cml).

    If you have some more ideas/questions feel free to ask image

     

    Many thanks,

    Jean-Baptiste

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