两个input clock经过or gate之后分频,分频的source clock应该怎么设置
时间:10-02
整理:3721RD
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A,B两个input clock经过or gate后分频,在分频的flipflop上create_generated_clock,source clock应该怎么设置呢
分别设, -add即可,
create_generated_clock [get_pins ff/Q] -name C -source [get_ports A] -add
create_generated_clock [get_pins ff/Q] -name C -source [get_ports B] -add
是这样?
create_generated_clock [get_pins ff/Q] -name C -source [get_ports A] -add
create_generated_clock [get_pins ff/Q] -name C -source [get_ports B] -add
这样第二行会覆盖第一行