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SERMASWATHIKA's avatar
SERMASWATHIKA
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2 years ago

timing_error_for_pll_afi_clock_on_ddr3_ip_controller

Hi Team,

I am checking the design with ddr3 interface, nios processor and other interfaces also in cyclone v gx device(5CGXFC5C6F27C7). I have given memory clock as 400 Mhz(ddr3 ip parameter setting) and uses afi_clock(200 Mhz) to connect the clock of other interfaces.

pll_clock of ddr interface is 50 Mhz. connected from the osciallator in the board.

Nios processor also connected with afi clock only (200 Mhz)

For this design , i am getting pll_afi_clock setup time violation.

i have attached the timing report.

PLease give solution for this.

62 Replies

  • Hi there, I see. If so, we are unable to help modify and do test on your design.

    What we can help is giving some general advice according to your timing analyzer reports.

    Thanks.


  • Hi there, is there are any updates. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.