VV6444 datasheet(24/60 Pages) STMICROELECTRONICS

24 / 60 page

PRELIMINARY

Digital Camera Chipset; Customer Datasheet, Rev 3.0, March 2000

STV0680A + VV6444/6410/6500

CDSTV0680F-C

Commercial in confidence

STV0680F_contents.fm

5.4.2

API Overview

All OEM application software communicates with the camera by means of the API as illustrated in Figure 4.

Figure 4 : Software interface

The user application, API and drivers all run on the host PC. The drivers communicate with the camera by the chosen

communications link (either serial or USB). The core API functions allow for:

•

The camera to be opened and closed as a device under the operating system

•

Query of camera information and configuration (e.g., the number of pictures taken, current mode setting)

•

Uploading of images and thumbnail images

•

Control of camera functions (e.g., taking a picture or resetting the image counter).

Both single-threaded and multi-threaded programming models are supported and the camera may be accessed using either

synchronous (i.e., blocking) or asynchronous (i.e., non-blocking or overlapped) communications. Where asynchronous

communications are used, the application developer is responsible for coordinating tasks and access to the camera.

User Application

API

Drivers

Camera Module

VV6444 Arkusz danych(PDF) 24 Page - STMicroelectronics