Hi Paolo,
from the flash programmer UI:
1- press the load settings button.
2- pick 8548_CDS_sram_FlashBank#0.xml in the 85xx folder.
3- make sure the right connection, config file are selected
4- check the right flash device is selected in the next page.
5- than erase and blank check
Now create a dummy project from CW stationery wizard for 8548CDS
1- change build target from DEBUG to ROM
2- build the application
from 4th page of flash programmer:
1- select the binary you've just created with CW
2- set the format to binary/row
3- program
4- verify
does that help?
Best Regards