TSL2580CS datasheet(32/53 Pages) OSRAM

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ams Datasheet

Page 31

[v1-00] 2016-Apr-05

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TSL2580, TSL2581 − Application Information: Software

The following pseudo code illustrates a procedure for reading

the TSL258x device (ALS) using word transactions:

Command = 0x80

//Set Command bit and Control Reg

Power_On = 0x01

//Power on device

WriteByte (Address, Command, Power_On)

Command = 0x81

//Set Command bit and ALS Timing Reg

ITIME = 0xb6

//200 ms integration cycle

//Configure ALS Timing Register for 200 ms integration cycle

WriteByte (Address, Command, ITIME)

Command = 0x80

//Set Command bit and Control Reg

ADC_En = 0x03

//Enable ADC Channels

//Keep device powered on and enable ADC prior to reading channel data

WriteByte (Address, Command, ADC_En | Power_On)

// Read ADC Channels Using Read Word Protocol - RECOMMENDED

//Address the Ch0 lower data register and configure for Read Word

Command = 0Xb4

//Set Command bit and Word bit

//Reads two bytes from sequential registers 0x14 and 0x15

//Results are returned in DataLow and DataHigh variables

ReadWord (Address, Command, DataLow, DataHigh)

Channel0 = 256 * DataHigh + DataLow

//Address the Ch1 lower data register and configure for Read Word

Command = 0xb6

//Set Command bit and Word bit

//Reads two bytes from sequential registers 0x16 and 0x17

//Results are returned in DataLow and DataHigh variables

ReadWord (Address, Command, DataLow, DataHigh)

Channel1 = 256 * DataHigh + DataLow

//Shift DataHigh to upper byte

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