Integration Guide

I2C Command Specifications
Integration Guide 31
CAMERA MODE (continued)
ILLUMINATION TIME
ILLUMINATION DELAY
AIM ON TIME
AIM DELAY
IMAGE BINNING
SENSOR CONTEXT
SENSOR AEC MAX EXPOSURE
DESIRED BIN
SENSOR ACTIVE CONTEXT (A/B)
Barcode Decoding , Image Capture and LCD Screen Read
operate using sensor Context A, while Motion Detection
and
Fast H igh Bin operate using sensor Context B with a
2xColumn+2xRow binning.
CAMERA RESET (0x37)
Re-initialization of all systems. The camera returns to its
initial state, except for all parameters previously stored in
EEPROM using SET CAMERA PARAM, that will be retained
and will be loaded back at the end of this system reset.
If parameter is 0x00, only the image sensor will be reset.
CAMERA START (0x38)
Starts or stops image acquisition and image
transmission.
After a stop command (CAMERA START with parameter
0x00), the engine begins the procedure for stopping the
image sensor. During this time (at max one frame of
16.6ms) the system will not compute any I
2
C command.
GET CAMERA PARAM (0x40)
Reads camera system factory parameters or user custom
parameters stored in non-volatile memory. Details can be
found in Table 6 on page 23, and Table 7 on page 24.
GET SENSOR REGISTER (0x31)
Returns the desired register value of the Aptina MT9V024
image sensor. Further details on the sensor can be found
in the MT9V024 manual.
The changes will not be written to non-volatile memory and User
Custom Parameters will NOT be modified by this command.