I don't quite understand what you mean by "the parameter which we can set in custom section of sigxp".Originally posted in cdnusers.org by kenk57
However, if you wish to have SigXp calculate the setup time, for instance, you will need to create the measurement expression that will do this for you. The setup measurement will be based upon
1) the time your "strobe" crosses a reference point for the first time in any given cycle; your Data Strobe time.
2) the time your data crossed the reciever in the previous cycle; your Prev Data Time.
3) subtract Prev Data Time from Data Strobe.
You will need three custom measurements to complete this task. One named Data_Strobe, one named Prev_Data_Time, and one named Setup. (Note: there is a multiplier in the equations (1e+009) to convert the results to nano-seconds instead of the default seconds the tool uses). (Also the reference voltage for the equations is 1.25 Volts. You will need to correct this to the value you wish to use).
Your Data_Strobe custom measurement will be:
Your Prev_Data_Time custom measurement will be
And finally, your Setup custom measurement will be
The other measurements you ask about can be created in a similar manner.