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Altera_Forum's avatar
Altera_Forum
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16 years ago

Dynamic Reconfiguration and Clock problems

Hi, I've tried compiling the altera's reference design for dynamic reconfiguration and it compiles perfectly. In the design there are 4 gxb each with 2 refclock and one reconfig module. Howev...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

So you are actually using both refclk pin pairs into the quad? That is slightly different from my designs. I have several designs that use two reference clocks, all 4 GXB in a quad with TX and RX, and dynamic reconfiguration. However, I also ran into the problem of not having enough global clocks to support all of the clock signals. What I did was use the assignment editor to tell Quartus NOT to put the recovered clock from the receiver on a global route.

e.g. 

set_instance_assignment -name GLOBAL_SIGNAL OFF -to *rx_clkout_wire*

Jake