For your custom design, you don't need any specific programming of the FTDI chip for the SDK. The only thing is the driver support and those required drivers are automatically installed at the time of SDK download.
Thank you very much for your reply. That is very helpful. One further question: Is the external EEPROM required? It is not clear from the datasheet whether the WICED SDK driver needs it, or not. "Host bus emulation" mode does not require it.
Update: It doesn't matter since the Murata 1GC module is not avail. anywhere in inventory globally. Moot point!
The external EEPROM is required. It configures the FTDI chip with the correct settings and puts the FTDI chip in the right operational mode.
This is done by programming the EEPROM via USB with the correct settings for the WICED board.
The EEPROM can be programmed in two ways-->
1. The EEPROM can be programmed using a tool called FT_PROG. You can follow this blog post-->
2. The EEPROM can be programmed via a script. This is easier. You can follow this blog post-->