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Altera_Forum's avatar
Altera_Forum
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9 years ago

How to find out a Tco from TimeQuest

Hi all! I'm using Quartus TQ and I have a question about the best way to measure a Tco for a FPGA pin to pin. My task is specifically for the case in that example - https://www.altera.com/conte...
Altera_Forum's avatar
Altera_Forum
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9 years ago

This is a really old white paper based off of the old timing analyzer. Are you trying to meet timing through a device or are you talking about meeting I/O timing to/from external devices? You should have set_input_delay and set_output_delay constraints in your .sdc file defining the external timing delays to/from external devices.

You can then use (based on the paper you linked):

report_timing -from [get_ports din*] -to [get_ports dout*]

to generate timing reports on these paths.