How to do Scan Synthesis?

[mic_huhu]

scanned synthesis

Hi,all,

Who can tell me how to do scan synthesis USing DFT compiler?
I have tried some times but failed every time.I don't know how to
get success.

Johnny

 

[xworld2008]

Where you failed and error information?

 

[brotherjam]

you'd better to follow the toturial of the DFT,or give your error information

 

[anjali]

explain me the issue where u failed. then we can help.

 

[johnz]

compile -scan

 

[hawk_chenbo]

Use "check test" command to report the violations. Then fix the design and make it testable.
Regarding to the DFT flow, you can learn it from the Tutorial file.

 

[mic_huhu]

Thanks all,

whether need other libs . The lib files for synthesis such as slow.lib is not enough?

the reports are all FlipFlops are not equivalent scan FF.

Added after 5 minutes:

and such as "TEST_451" ,"TEST_199","TEST_224"
and about memory : "..... because functionality for output pin[31] is bad or incomplete"

Sorry for I can't give more info.

 

[anjali]

does your FFs have any async inputs?

 

[mic_huhu]

some FFS have asynchronous reset. no other async inputs

 

[cnspy]

these asynchronous reset should be controlled in test mode.

 

[anjali]

give the async reset to the flop, as anded with scan_enable.

this can be done with autofix option of the command "set_dft_configuration".