Hi,lostinxlation
It's you again. Thank you.
Now I knew what is the library recovery time now. But the delay is always positive, and the recovery time is always negative. In this case library recovery time is -47.45,with a clock period is just only 8,therefor the data required time is always negative too. So, I think it is impossible to meet the recovery time. right?
I set ideal network at port chip_rstn_pad, it works when chip_rst_n is derectly connected with dct_rst_n_out; when chip_rst_n is as an alternative of dct_rst_n_out, it doesn't work ,although i set dont_touch for it. The only thing I can do is buffer it ?
Regards.
oscillator_cn1