No, If you plan to use the default parameter table that is loaded in by the RBL you don`t need to use romparse. What flash device are you planning to use? NAND or NOR flash device ?
I have attached an example to convert an out file to a boot table for flash device connect on tnhe EMIF16 port. The example uses the defualt parameter table so romparse is not used. Please refer to the steps to create your own boot image.
(Please visit the site to view this file)
The bat file in the folder shows all the steps and utilties used to build the image.
Regards,
Rahul