STV0680 datasheet(19/63 Pages) STMICROELECTRONICS

19 / 63 page

Version 3.4

19/63

STV0680B + VV6444/6410/6500

Camera modes of operation

3.3.6

Continuous mode - Ct

Pressing the shutter button within 5 seconds will cause the camera to start taking pictures for as

long as the shutter button is pressed down (and the camera is not full). If the shutter button is not

pressed within 5 seconds the camera will revert to normal picture taking mode.

Note: 1 During continuous mode the camera will allow pictures to be taken regardless of the available light,

which could result in insufficient exposure.

2 In continuous mode, only every alternate field is grabbed hence capture rate is halved. E.g. 12.5fps

CIF and 7.5fps VGA

3 On STV0680B-003, Continuous Mode is suppressed when the FlashGun enable signal (GPIO2) is

high.

3.3.7

Self timer - St

Pressing the shutter button will now start a 10-second self-timer. The camera will issue a short beep

every second and then a longer beep. A further beep will then indicate that the picture has been

taken (high beep - picture successful, low beep - insufficient light, picture not taken). The self-timer

mode can not be selected when the camera is full. The self-timer countdown cannot be stopped

once it has started.

3.3.8

Clearing the camera memory - CL

Pressing the shutter button once will cause the camera to beep and the ‘CL’ to start flashing.

Pressing the shutter button again within 5 seconds will clear all the images/audio clips in the

camera and reset the counter.

3.3.9

Changing picture resolution - Hr/Lr

The resolution option is displayed, either Hr. to change to high-resolution mode (if currently in low-

resolution mode) or Lr to change to low-resolution (if currently in high-resolution mode). Press the

shutter button within 5 seconds of selecting the resolution option, the camera will beep and the

display will reset indicating the number of pictures available in the new mode. The picture resolution

can be changed at any time, i.e. the camera can store both high and low resolution images.

STV0680 数据表(PDF) 19 Page - STMicroelectronics