how fast is your design? below 50MHz, not a problem, but over 50MHz, you will need to worry about SI.
Another issue you should be aware of is that if you want to put the FPGA on a daughter board and then plug the daughter board onto a mother board for FPGA reuse, it will cause signal quality issues, especially with clock signal, reset signal.
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发表于 2007-3-21 10:52:40
发表于 2007-3-21 12:28:53
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