Dual-Purpose Pins in Quartus 10.0

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Thanks, great idea.

It is a GUI issue. If i set the assignments as follow in the .qsf before i compile the design, there is no error and the fitter completes his job.

set_global_assignment -name RESERVE_FLASH_NCE_AFTER_CONFIGURATION "USE AS REGULAR IO"

set_global_assignment -name RESERVE_DATA0_AFTER_CONFIGURATION "USE AS REGULAR IO"

set_global_assignment -name RESERVE_DATA1_AFTER_CONFIGURATION "USE AS REGULAR IO"

set_global_assignment -name RESERVE_DCLK_AFTER_CONFIGURATION "USE AS REGULAR IO"

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I have try this mathod, but I can not access the epcs still.(I can read epsc when i use Quartus 9.0)