AMS TSL2541 User Manual Download Page 6

TSL2541 EVM User Guide 

 

 

Page 6 

Click 

Clear Log

 to discard any data that has already been collected.  If there is data in memory, 

which has not been saved to disk, this function displays a prompt asking to verify it is OK to discard 
the data. If the log is running when this function is clicked, the log continues running after the 
existing data is discarded. 

Click 

Save Log

 to save the collected log data to a csv file.  This stops the logging function, if it is 

active, and displays a file dialog box to specify where to store the logged data.  The default file 
name is described in the 

Log Status and Control Information

 section, but the file name may be 

changed if desired. 

4.2.3  Help Menu 

The Help menu contains a single function: About. 

Figure 6. Help Menu 

 

The 

About

 function displays a dialog box (Figure 7) showing the version and copyright information 

for the application and library. Click the 

OK

 button to close this window and continue. 

Figure 7. About Widow 

 

4.3 

System Level Controls 

Immediately below the top menu bar there are checkboxes used to control the system level 
functions of the TSL2541 device.  

The 

Power-On

 checkbox controls the PON function of the TSL2541. When this box is checked, the 

power is on and the device can operate. When this box is unchecked, the power is off and the 
device does not operate (The control registers can still be written, but the device does not function). 

The 

ALS Enable

 checkbox controls the AEN function of the TSL2541. When this box is checked, 

the device collects and report ALS data as programmed. When this box is unchecked, the ALS 
functions do not operate. 

4.4 

Auto Polling 

The application automatically polls the TSL2541 raw ALS data if enabled. The 

Poll Interval

 displays 

the time between reads of the device.  

Summary of Contents for TSL2541

Page 1: ...User guide TSL2541 EVM TSL2541 ALS Light to Digital Sensor Evaluation Kit Version 1 0 ...

Page 2: ...s 3 2 Getting Started 3 3 Hardware Description 3 4 Software Description 4 4 1 Connect Software to Hardware 4 4 2 System Menus 5 4 3 System Level Controls 6 4 4 Auto Polling 6 4 5 Device ID Information 7 4 6 Log Status and Control Information 7 4 7 ALS Tab 8 5 Resources 10 ...

Page 3: ...oads the required driver for the USB interface and also the device s graphical user interface GUI The balance of this document identifies and describes the controls available on the GUI In combination with the TSL2541 datasheet the QSG and application notes available on the ams website www ams com there should be enough information to allow evaluation of the TSL2541 device 3 Hardware Description T...

Page 4: ...he software automatically connects to the hardware On successful initialization the software displays a main window containing controls pertinent to the connected device If the software detects an error an error window appears If Device not found or is unsupported appears verify the correct daughterboard is properly connected to the EVM controller board If Cannot connect to EVM board appears verif...

Page 5: ...ALS Lux Coefficients section for more details Click on the Exit command to close the main window and terminate the application Any unsaved log data is cleared from memory The application can also be close by clicking the red X in the upper right hand corner 4 2 2 Log Menu The Log menu is used to control the logging function and to save the log data to a file Log data is accumulated in memory until...

Page 6: ...plays a dialog box Figure 7 showing the version and copyright information for the application and library Click the OK button to close this window and continue Figure 7 About Widow 4 3 System Level Controls Immediately below the top menu bar there are checkboxes used to control the system level functions of the TSL2541 device The Power On checkbox controls the PON function of the TSL2541 When this...

Page 7: ...e default log file name is based on these values at the time the log file is written If nothing is entered in these boxes they default to a period Sample default file name TSL2541_1 2 3_Log_HH_MM_SS csv From Application From User Input The Count value displayed is a count of the number of samples currently in the log buffer The Elapsed Time value indicates the elapsed time since data logging was s...

Page 8: ...ues of WTIME and WLONG are ignored The WTIME control sets the time to wait between ALS cycles WTIME can be adjusted in 2 778ms steps The WLONG checkbox controls sets the WTIME factor When this box is checked the wait time between ALS cycles is extended by a factor of 12x 4 7 2 ALS Lux Coefficients The TSL2541 ALS supplies information that is used to calculate Lux unit of illumination The Lux equat...

Page 9: ...e 145 006 coef name CoefB value 0 14 coef name CoefC value 1 078 coef name CoefD value 0 156 eq_values luxeq 4 7 3 ALS Output Data The top right corner of the ALS tab displays the output data This data is continuously read The polling interval is shown above the tab Visible displays the data counts for the Visible channel multiplied by the adjustment factor IR displays the data counts for the IR c...

Page 10: ...d but the actual plot will not be updated until the plot function is re enabled 5 Resources For additional information regarding the TSL2541 please refer to the datasheet For information regarding the installation of the TSL2541 EVM host application software please refer to the TSL2541 EVM Quick Start Guide Designer s Notebooks dealing with various aspects of optical measurement and optical measur...

Page 11: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information ams TSL2541 DB TSL2541 EVM ...

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