Hello,
1> Regarding loading the Camera Pixel Data to DDR:
You can add a custom module, It has to do the following
a) takes input from the camera sensor,
b)write it into a fifo wrt to camera_clk and then read from the fifo wrt[with respect to] ddr_clk
c) Then write it to the ddr by designing a simple avalon bus interface that supports the DMA component already available in the SOPC builder in VHDL/verilog
DMA component is instanced to your design in the SOPC along with the custom component [above explained] you designed.
Regards,
Jagadeesh.B