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FPGA Board with GDDR5 RAM
by logicatoms on Sep 6, 2016
logicatoms
Posts: 5
Joined: Apr 26, 2015
Last seen: Sep 8, 2016
We are developing a GDDR5 Memory controller IP Core, and looking for a FPGA board with GDDR5 memories for validating the controller. Unfortunately we have found that no such boards are offered by any of major FPGA vendors like ALTERA, XILINX and LATTICE.

Requesting to suggest us third party vendors offering FPGA board with GDDR5.


RE: FPGA Board with GDDR5 RAM
by dgisselq on Sep 6, 2016
dgisselq
Posts: 247
Joined: Feb 20, 2015
Last seen: Oct 24, 2024
Do any of the major FPGA vendors even offer hardware support for GDDR5 controllers? That may be why you aren't finding the example boards you need--the FPGA vendors haven't yet built a chip that will support the data rates or communication protocols of GDDR5.

Dan

RE: FPGA Board with GDDR5 RAM
by logicatoms on Sep 7, 2016
logicatoms
Posts: 5
Joined: Apr 26, 2015
Last seen: Sep 8, 2016
The DDR4 and GDDR5 both uses Pseudo-Open Drain (POD) IO standard for data transfer.

Xilinx offers FPGA boards with DDR4 memories. assume that we can replace the DDR4 with GDDR5 with minor work arounds in the board, the major problem is the PHY circuit .

The GDDR5 PHY has to be synthesized in place of DDR4 PHY inside the FPGA.
if any FPGA vendor offers AMS design capability / Verilog AMS synthesis, I hope we can create the FPGA boards with GDDR5 memories with that supports DDR4.

Question: any FPGA in market today offers AMS design capability ?.

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