Stand alone system with EPCS

Hi,

I have some questions about EPCS and Booting from EPCS.

I know how to program my flash memory with the flash programmer but I have a strange behavior from my system. There are certainly some misunderstandings from me...

For example, I program the EPCS with parameters. When I programm it with other parameters and plug my system (a USB system) the parameters are the same that the first programming. Do you know why ?

When you hava a system like this, in SOPC Builder :

- do you initialize you memory on chip ? How do you initialize it ? with the automatic parameter or with a custom file ?

- does the nios have its reset vector on EPCS or memory On Chip ?

Thank you for your answer,

Mig