4DSP Products Technical support

I recently purchased two FMC150's and a Hitech Global [size=small][font=Times] HTG-V6-PCIE-[/font][/size][size=small][font=Times]XC6V[/font][/size][size=small][font=Times]S[/font][/size][size=small][font=Times]X[/font][/size][size=small][font=Times]315T[/font][/size][size=small][font=Times]-[/font][/size][size=small][font=Times]2-[/font][/size][size=small][font=Times]FFG1759.[/font][/size]
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[size=small][font=Times]This version of the Hitech board has one FMC HPC connector and a second FMC LPC connector. Both Hitech and 4DSP claim to be Vita 57.1  compliant, but the specs seem to indicate that pins 3-20 in the C,D,H, and G lanes are unwired on the LPC connector on the Hitech board, while the same pins connect most of the ADC A/B channel data in the 4DSP side.  [/font][/size][font=Times][size=small]I am not familiar with the specifics of the standard, but this is a big problem for me.[/size][/font]
[/size][size=small][/size][size=small][font=Times]I am asking the same question to the Hitech folks, does anyone else have any experience with this issue? [/font][/size][size=small][/size][size=small]

Hello,

based on your description it would seem to indicate that the Hitech card is not compliant with VITA 57.1 with LPC.
However if signals on rows C, D, H and G are not connected, what is connected?

Please see attached picture for LPC connections as defined by VITA 57.1.

Thank you,
Pierrick

Thanks for your reply.


I have come to the same conclusion, the Hitech board does not seem to meet the spec. The active connections that are available to the FPGA start at LA_18 rather than LA_00.


This applies to the FMC "B" connector with Virtex 6 chips smaller than the LX550 and SX475.


This means that I am losing the two ADC channels on my second device. Any suggestions for a workaround are welcome. I can't think of anything other than a second FPGA board.


Don

Hello,

there's no easy work around.
If you use your board in a stand alone configuration then an ML605 might be a better choice as it offers two FMC sites (HPC and LPC) that both have enough connections for the FMC150.
The drawback is that it does not have any Virtex-6 SXT device.

Thanks
Pierrick