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Altera_Forum
Honored Contributor I
1,000 Views

DDR2 with cyclone IV E

Hi, 

 

I would like to use a ddr2 with a cyclone IV E in my design. 

I choose the most available ddr2 512Mb x16 at micron : MT47H32M16HR-25E. 

Now i have to choose an IP to manage it. "DDR2 controller with altmemphy" seems to be the only IP for cyclone IV E but it doesn't have presets for MT47H32M16HR-25E. 

 

2 questions :  

- is it simple to set parameters in this IP / is the IP compatible with this DDR2 model 

- I have a niosII license, does it include the DDR2 license ? 

 

Thanks, 

 

Sebastien.
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3 Replies
Altera_Forum
Honored Contributor I
95 Views

I did quiet the same thing: 

- is it simple to set parameters in this IP / is the IP compatible with this DDR2 model 

I didn't have any problem. I just need to adjust the CAS lantency 

 

- I have a niosII license, does it include the DDR2 license ? 

You should to compile your design. If you get a file name: your_project_time_limited.sof 

you have to bye the license. You can buy the embedded IP pack. 

 

2 advises (it was my errors): 

+ You should be carefull with the routing. Track must have approcimatively the same length. 

+ Don't forget to focus on RDN and RUP pins ! 

Good luck
Altera_Forum
Honored Contributor I
95 Views

Thanks for answers and advises. 

 

Now my nios license works. I don't know why Quartus was generating time limited programming files for DDR IP, the license was set in Quartus (and works) months before...
Altera_Forum
Honored Contributor I
95 Views

Help!! 

 

What did you change the CAS times to? I am using the same memory on cyclone 4 and cant get it to talk at all :( 

 

Thanks
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