TSL2562, TSL2563

LOW-VOLTAGE

LIGHT-TO-DIGITAL CONVERTER

TAOS066N − AUGUST 2010

20

r

r

Copyright

E 2010, TAOS Inc.

The LUMENOLOGY

r Company

www.taosinc.com

APPLICATION INFORMATION: SOFTWARE

Configuring the Timing Register

The command, timing, and control registers are initialized to default values on power up. Setting these registers

to the desired values would be part of a normal initialization or setup procedure. In addition, to maximize the

performance of the device under various conditions, the integration time and gain may be changed often during

operation. The following pseudo code illustrates a procedure for setting up the timing register for various

options:

// Set up Timing Register

//Low Gain (1x), integration time of 402ms (default value)

Address = 0x39

Command = 0x81

Data = 0x02

WriteByte(Address, Command, Data)

//Low Gain (1x), integration time of 101ms

Data = 0x01

WriteByte(Address, Command, Data)

//Low Gain (1x), integration time of 13.7ms

Data = 0x00

WriteByte(Address, Command, Data)

//High Gain (16x), integration time of 101ms

Data = 0x11

WriteByte(Address, Command, Data)

//Read data registers (see Basic Operation example)

//Perform Manual Integration

//Set up for manual integration with Gain of 1x

Data = 0x03

//Set manual integration mode – device stops converting

WriteByte(Address, Command, Data)

//Begin integration period

Data = 0x0B

WriteByte(Address, Command, Data)

//Integrate for 50ms

Sleep (50)

//Wait for 50ms

//Stop integrating

Data = 0x03

WriteByte(Address, Command, Data)

//Read data registers (see Basic Operation example)