[SOLVED] DC cannot find scan equivalent cells in Nangate Library

[ebrahimi.khoy]

I am using synopsis design compiler and Nangate Library for synthesis. When I want to insert scan chain in circuit I got the following message

Warning: No scan equivalent exists for cell iwb_biu/wb_cyc_o_reg (DFFR_X1). (TEST-120)

There is SDFFR_X1 cell which seems to be scan equivalent of this cell. This is same for all flip-flops and finally it cannot insert scan chain.
My script is working fine with other libraries. Is there any method to introduce scan cells to design compiler?

 

[maulin sheth]

Can I know the script pl...
Other flops are converted to scan cell or not?

 

[ebrahimi.khoy]

I found the reason. The thing is that test_cell annotation is missing in this library. The issue is resolved after I manually add such notations to scan flip-flops.