spartan 3A : DDR2 controller

for edu. purpose, I would like to modify s3astarter_ddr2 design to use
it with picoblaze (store some data to ddr2 and read them back later).

I understand I have to hack vhdl_xst_bl8_ddr2_test_bench_0 according
my needs replacing addr_gen, cmd_fsm,... and connect picoblaze
external bus to memory.

This is my first memory controller design and a bit too hard. Does
anybody have some sample, reference design, guidelines...
(this is for spartan 3A starter kit, I am looking for the same design
for 3E starter kit DDR sdram)

I do not want to use an EDK design.

regards, raph

On 19 Jun., 09:58, rpons...@gmail.com wrote:
> for edu. purpose, I would like to modify s3astarter_ddr2 design to use
> it with picoblaze (store some data to ddr2 and read them back later).
>
> I understand I have to hack vhdl_xst_bl8_ddr2_test_bench_0 according
> my needs replacing addr_gen, cmd_fsm,... and connect picoblaze
> external bus to memory.
>
> This is my first memory controller design and a bit too hard. Does
> anybody have some sample, reference design, guidelines...
> (this is for spartan 3A starter kit, I am looking for the same design
> for 3E starter kit DDR sdram)
>
> I do not want to use an EDK design.
>
> regards, raph

unfortunatly NO, there is no open free simple easy MIG demo design
known.
the only way to actually use DDR2 on Spartan-3A board is currently the
EDK design

Antti