Relationship between EPCS controller and Remoteupdate Megafunction

[Altera_Forum]

Hi there, 

 I am getting confused by the relationship between the EPCS controller and the remote update megafunction:  Does the remote update megafunction contains a EPCS controller in it to interface with EPCS flash? Or Remote update megafunction is the master to the EPCS controller?:confused:   Thanks, Hua

[Altera_Forum]

- There is probably a RSU<->avalon bridge for the NIOS but I do not know its name 

- EPCS controller allows communication with the EPCS using the Nios. - ALTRSU_UPDATE megafunction allows your custom logic to control the booting of the FPGA - ALTASMI_PARALLEL megafunction allows your custom logic to communicate with the EPCS device  So if you have a NIOS use the first two. If you donßt, use the last two.

[Altera_Forum]

Thanks! :D