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.
5884 Discussions

"ERROR: tRFC maximum violation during No Op" occur in modelsim simulation!

Altera_Forum
Honored Contributor II
830 Views

In my project, i add a DDR2 HPCII and some other avalon master in SOPC system. when simulation in modelsim, error "tRFC maximum violation during No Op" occur in modelsim simulation!" occured after running a certain time. and then simulation is paused. 

 

I have checked the parameter set for the DDR2 HPCII. and the tRFC is set to 105 ns. it's the same as the parameter set in ddr2_parameter.vh, which is as follow: 

 

parameter TRFC_MIN = 105000; 

parameter TRFC_MAX =70000000; 

 

need help!
0 Kudos
0 Replies
Reply