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SKon1's avatar
SKon1
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

Using the -add_delay switch

Hello, I'm setting an output delays on DDR interface for a signal named "valid" relative to a clock named "clock" as follows: set_output_delay -clock clock -max -0.9 [get_ports {valid}] set_outpu...
KhaiChein_Y_Intel's avatar
KhaiChein_Y_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,

You may refer to https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an433.pdf (Example 2):

set_output_delay -clock [get_clocks output_clk] -max 2 [get_ports data_out] set_output_delay -clock [get_clocks output_clk] -min -1 [get_ports data_out] -add_delay

set_output_delay -clock [get_clocks output_clk] -max 2 -clock_fall [get_ports data_out] -add_delay

set_output_delay -clock [get_clocks output_clk] -min -1 -clock_fall [get_ports data_out] -add_delay

Thanks.

Best regards,

KhaiY