OV5640 Camera with autofocus on Maxiduino

Hi at all,
I’m trying to use OV5640 camera on Maxiduino FW version 0.6.2 without success.
I had read in the datasheet that this camera is compatible.
When I start the script on Maxiduino, I receive “Sensor Timeout!!” error.
Can anyone help me please?
Thankyou very much

import sensor
import image
import lcd
import time

clock = time.clock()

lcd.init()
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.VGA)
sensor.skip_frames(90)
while True:
    clock.tick()
    img = sensor.snapshot()
    lcd.display(img)