Checksum Position in a Frame

SystemVerilog
1

In my current project, as per the specification the checksum should be calculated & added before the payload.

So I just know is it recommended or necessary to add the checksum before payload or it can be added anywhere in the packet?

If to be before payload, then why?

2

This is really up to the protocol architect, you will have to ask them. Usually a check sum at the beginning of a payload represents a checksum for a whole payload that will be broken up into pieces and a checksum at the end represents just one piece.

3

In reply to dave_59:

Hi Dave,

Thanks for your concern & valuable reply.

But still I’ve some doubts, so it will be better if could you please explain your above reply in a small example?

Thanks in Advance…!!!