OMAP-L138 LCDK VPIF raw data capture mode problem

Hi

I have reference the sample code( vpif_lcd_loopback project)from
OMAPL138_StarterWare_1_10_04_01, and It's work. Then I try to do
raw data capture mode via camera sensor on my board
(OMAP-L138 LCDK ),but it doesn't work.

1.Is this OMAP-L138 LCDK board support VPIF raw data capture mode?
Technical Reference Manual (Literature Number: SPRUH77A) say
OMAP-L138 does support this mode,but i use the kite board, so i am not really sure.
or it i need do something on my board?

2.I attach the c file. I follow the concept and register setting from the
sample code, but i can't get any frame or line interrupt.

environment:
http://processors.wiki.ti.com/index.php/L138/C6748_Development_Kit_(LCDK)
CCS 5.5.0.00077

Thanks~(Please visit the site to view this file)

Bill