Default Is there Flash Tool for Broadcom devices?

Hi devs,

As the title suggests, I want to know if there's a flash tool for broadcom that will work on BCM 23550 devices. I can't find a way to backup a stock ROM for this device aside from CWM. Is there any flash tool which I could use for creating a ROM and make it flashable through CWM?

Please help me out.. Thanks in advance!