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Problem with EVMK2H Powerup in MicroTCA Chassis

Todd Harrington
Intellectual 290 points

Hello,

We have an EVMK2H board (have also tried XTCIEVMK2X) working fine on the bench. When we install it in the Schroff MicroTCA chassis the board does not come up. We cannot connect to it via JTAG or serial console anymore. The fan does not even turn on. The Blue and Red LEDs are illuminated solid. The NAT-MCH does not show the EVM as a FRU during FRU scan and has red lights on its front panel indicating that the EVM AMC cards failed negotiation with with the MCH and will not apply 12V payload power to the EVM. The MCH has GigE and SRIO switch fabric on it (no PCIe switch). The EVMK2K has GigE, SRIO, and PCIe on uTCA connector pipes.   We are trying to understand why the MCH will not tell the Power Module to apply payload power to the EVM.

1) Does the EVMK2H come programmed with the basic FRU data (MMC code) required for the MCH to read and apply payload power to the EVM?

2) There is no hot-swap handle on these cards. Is the circuitry on the board such that the switch is hard wired "closed" and we dont need to worry about thie hot-swap handle? The EVM almost behaves like a uTCA board with the hot swap handle open.

 3) Has anyone seen this problem before?

Thanks,

Todd

  • 0
    TI__Guru* 81335 points

    Hi Todd,

    So for we have not received any issues on this from customer or internal team.

    As most of us using, the EVM'S z3 ADF CONN (30 pin) is connected into RTM BOC's Micro TCA.4 plug. 

    RTM BOC: http://www.mistralsolutions.com/pes-products/development-platforms/rtm-break-out-card.html

    We will work on this and post our suggestions. Thank you for your patience.

  • 0
    Mastermind 6325 points

    Hi Todd,

    I was able to get the NAT MCH to work with TI EVMs by updating the MMC code.  Here is a link with some of the details:

    http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/t/209996.aspx

    Another idea - if you need a really quick solution - is to override the power on sequence in the Power Module on the chassis.  It will force power to the AMC but you will also need to manually turn on the backplanes etc.

    Hope this helps,

    Brandy

  • 0 in reply to Brandy Jabkiewicz
    Mastermind 6325 points

    Also NAT MCH comes with a basic debugging tool too - NATview.  I can't remember if I found it online or had to request it.  But this showed exactly why the MCH would not power on the EVM. 

  • 0
    TI__Mastermind 42545 points

    Todd,

    The K2H EVM does not have a separate MSP430 to operate the MMC code similar to the KeyStone I EVMs. The K2H EVM has the BMC which was included to control the power sequencing, boot selection and clock control. The BMC was also expected to include the MMC code functionality but that feature has not been implemented at this time. Most MCH modules have the ability to override the negotiations and apply power to an FRU. That is the only solution we can offer at this time.

    Regards, Bill

  • 0 in reply to Brandy Jabkiewicz
    Intellectual 290 points

    Hi Brandy,

    Thank you. The board referenced in that link is a Keystone I architecture. I am told that the the EVMK2H, which is Keystone II, does not use the same MSP430 MMC and the MMC firmware will not work. The Keystone II uses a BMC and the MMC code was never implemented. Please share you thoughts on this. I dont believe you would be able to get a NAT-MCH to power up an EVM-K2H (Keystone II). That is my problem

    Todd

  • 0 in reply to Todd Harrington
    Mastermind 6325 points

    Hi Todd,

    I saw Bill's answer - that is a bummer for you. I haven't explored they Keystone II architecture.  When I was working on the setup, the Keystone I was brand new :)  I guess the only thing to do is bypass the power on sequence in the power module.  I can find some instructions for that if you need. 

    Bill, is the BMC code available?  Could Todd combine/port the code himself manually?  I know the working MMC code is available so perhaps it wouldn't be too tough?  I really haven't looked at the K2H at all.

    Let me know if I can help with anything else.