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Honored Contributor I
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a question about the effiency of HPC II?

Now I use HPC ii to operate two ddr2 chip(parallel connet to the FPGA,act as a 32 bit data bus ddr2),and the operate mode is full rate,  

and I have 10 input ports to write to and 10 output ports to read from the 32 bit ddr2, each time I will write 64bit*8 datas to or read 64bit*8 datas from ddr2, but I have notice when I simulate the HPC II,that after I assert the local_read_req and local_burst signal ,almost delay about 30 phy_clk,and then the HPC II assert the local_rdata_valid,in the 30 phy_clk,can I do something? 

Can I do operate the HPC II to write to or read from the DDR2 in the 30 phy_clk delay ??? 

 

In the situation switching to write 64bit*8 datas to or read 64bit*8 datas from the DDR2 via the hpcii with full mode each time, how much value of effiency the HPC II will be?? Wil the 30 phy_clk delay influence the effiency ? 

 

http://www.alteraforum.com/forum/attachment.php?attachmentid=10329&stc=1
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