UNIT-V capturing image at 2M pixel (UXGA)

[Lucy]

Hi,
I succeeded snapshot a jpg image at VGA, but fail at UXGA.
How to bring out OV2640 (Maxmium Pixel: 2M) abilities?

import sensor
import image

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.UXGA)
sensor.run(1)
img = sensor.snapshot()
path = "/sd/image-UXGA.jpg"
img.save(path)

Traceback (most recent call last):
  File "<stdin>", line 6, in <module>
OSError: [Errno 12] ENOMEM