FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
5988 Discussions

DDR4 will not work sometimes

PChan11
Novice
1,047 Views

Dear Sir,

 

I am using DE5aNET-DDR4 to develop a design. It has a DDR4 controller. The memory clocks of the DDR4 that we have used, are 1200Mhz and 1000Mhz in Quarter; that is, 300Mhz and 250Mhz for the emif user clocks. It works, but sometimes needs to reset several times. Is it a problem in calibration or parmeter settings? Thanks.

 

Peter Chang

0 Kudos
2 Replies
BoonT_Intel
Moderator
124 Views

Hi Peter,

Again, I suggest you contact Terasic and get an DDR4 example design from them. Then compare your design with their example design (especially all DDR4 IP parameters setting) and see if any different that will causing this problem.

PChan11
Novice
124 Views

OK. Thank you.

 

 

Peter Chang

Reply