The invention relates to a camera
system and a control method thereof. The
system comprises a main control processor
chip, an LCD display screen and a camera, wherein the LCD display screen and the camera are directly connected with an interface of the LCD display screen of the main control processor
chip by a shared data line, and the camera is respectively connected with a
clock signal output pin, a synchronous
signal detection pin, a general-purpose input / output pin and an I2C
bus interface. The camera
system and the control method thereof are implemented by adding the camera and
video record functions of a product with the camera system, such as a cellphone, a
digital camera, and the like with the minimum cost by omitting a special control processor used for the camera. In addition, the invention adopts the technology as follows:
multiplexing pins with the general-purpose input / output and
clock output functions are adopted to simulate a
clock signal and control the operation of thecamera so that the camera and the main control processor
chip can synchronously work and image information output by the camera can be read by a data
bus of the main control processor chip.