liletian
Full Member level 6
Hi All
Can anyone explain how scan work in digital design?
I mean even I have a scan control signal in all design flip-flop. How can I use it for test purpose?
I assume there will have a scan input signal, then based on this input signal, you can verify a chain to see if it is functional. am I right?
Even so, you can not debug your problem to a specific flip-flop, how would that help?
Do I miss something here?
Also, in the design, there normally has a few scan chain, how can you determine how many scan chain that you need?
Thanks
Can anyone explain how scan work in digital design?
I mean even I have a scan control signal in all design flip-flop. How can I use it for test purpose?
I assume there will have a scan input signal, then based on this input signal, you can verify a chain to see if it is functional. am I right?
Even so, you can not debug your problem to a specific flip-flop, how would that help?
Do I miss something here?
Also, in the design, there normally has a few scan chain, how can you determine how many scan chain that you need?
Thanks