How to do high fanout net setup for reset network in DC?

[hgby2209]

set_ideal_network

Could anyone tell me how to let reset tree like clock (creat_clock + set_dont_touch_network) which has no any buffer inserted then let back end tool to insert buffer like CTS?

I had done as following, but it's failed.

set_ideal_network [get_pins upads/ureset_pad/D]
set_dont_touch_network [get_pins upads/ureset_pad/D]

Could anyone tell me the correct method?

 

[eexuke]

set_ideal_network

maybe you can use "set_ideal_net" instead of "set_ideal_network".
Good luck!

 

[eexuke]

reset network, dont_touch

In addition, you should pay attention to the difference between "get_pins" and "get_ports"

 

[hgby2209]

reset tree buffers

The failed symptom is :
the reset network's attribute is dont_touch & ideal_network, and no buffer, that seems right, but in every submodule's reset input pin all have a buffer.
Could anyone tell me how to let the buffer that in the submodule's input pin disappear, then let the reset network really buffer free.
Or it's normal??

 

[hgby2209]

set_dont_touch_network set_ideal_network

The following method is right!!

set_ideal_network [get_pins upads/ureset_pad/D]
set_dont_touch_network [get_pins upads/ureset_pad/D]

It's failed due to my reset circuit is posedge trigger, but my library just have negedge trigger FF, so in every sub-block all have a inverter
...... :wink: