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MPMC without MCB on Spartan-6

Started by Sebastien Matel September 5, 2010
Hi,

Is there a way to hack the MPMC into not using the MCB (but the
softcore MIG) on Spartan-6? The MPMC datasheet says no, but since the
MIG source code is mostly behavioral (iirc), maybe there is a way
around this.

I have a board with DDR SDRAM and a pinout that is not compatible with
the MCB, and my custom softcore platform (that is not using the MCB)
randomly crashes when running complex software (Linux systems etc.).
I'm suspecting a DRAM problem. It is stable on Virtex-4, tested on the
ML401 board. I would like to test my custom board with Microblaze in
order to put potential PCB or signal integrity problems out of the
equation.

Thanks
S.
On Sep 5, 10:11=A0am, Sebastien Matel <sebastien.ma...@gmail.com> wrote:
> Hi, > > Is there a way to hack the MPMC into not using the MCB (but the > softcore MIG) on Spartan-6? The MPMC datasheet says no, but since the > MIG source code is mostly behavioral (iirc), maybe there is a way > around this. > > I have a board with DDR SDRAM and a pinout that is not compatible with > the MCB, and my custom softcore platform (that is not using the MCB) > randomly crashes when running complex software (Linux systems etc.). > I'm suspecting a DRAM problem. It is stable on Virtex-4, tested on the > ML401 board. I would like to test my custom board with Microblaze in > order to put potential PCB or signal integrity problems out of the > equation. > > Thanks > S.
There isn't a soft-core MIG for Spartan-6. Ed McGettigan -- Xilinx Inc.
Well, I've seen that - but how hard would it be to use, say, a
modified Spartan 3A softcore MIG on a Spartan 6? Anyone attempted that?