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Altera_Forum
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15 years ago

Fitter could not properly route signals from DQ I/Os to DQ capture

hi all: I got a "critical warning" when i construct ddr2_controller using MegaWizard. the device is ep3c16f484. ddr2 controller pin is assigned at the bottom of the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

hi all:

I generate a ddr2 controller which data wide is 32,then my fpga can connect to two ddr2 sdram.this controller is used to check my fpga pin assignment. no error, but this warning above!