I would like to use the Nor flash instead of EEPROM as a main memory.
According to 20732 circuit diagram, it seems like no matter for H/W.
How about the S/W? Is there any part that I need to change for S/W?
you need to change something in the configuration file and the details are in this thread:
WICED Smart BCM92073X EEPROM and SFLASH Layout
Retrieving data ...