there are four outputs for the camera, that is, Hsync，Vsync，Pclk and data[7:0], when i enable the camera, i get only these signals Hsync and Vsync, but the Pclk don't change, always 0, and i can only get three values from the output data[7:0] ,128,16,0, i don't know what is wrong....

please help me

 

Any chance Pclk is a signal originating with the host computer to control the image readout?

Answered my own question - no.

Have you sent the codes to initialize the camera's microprocessor and started the image transfer?