Hi XianJun, I have an active developments with the NC56F8367 and the 56F8257. I did not activate the bootloader yet, but I don't understand:
Did you have a problem with freescale bootloader application? why did you have to develop your own SW?
Sorry that I can't answer your question yet, but I'll be glad to get any tip for me for the bootloader issue, as I'll have to add bootloader.
Thanks
Benny