RD4247MAG3110 Freescale Semiconductor, RD4247MAG3110 Datasheet
RD4247MAG3110
Specifications of RD4247MAG3110
Available stocks
Related parts for RD4247MAG3110
RD4247MAG3110 Summary of contents
Page 1
... RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide 1 Introduction The RD4247MAG3110 sensor toolbox tilt-compensated eCompass kit provides hardware and software for demonstrating the capability of the MAG3110 3-axis digital magnetometer in an eCompass application with hard- and soft-iron calibration. The kit includes the following: • ...
Page 2
... The kit’s navigation application uses a Google Maps™ demonstration powered by the Adobe ® Shockwave software. If the free Shockwave software is not installed on your PC, follow the instructions at the end of the procedure. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev LFSTBEB3110 LFSTBUSB ® ...
Page 3
... If the evaluation board’s red power LED does not illuminate, check the power switch located next to the board’s USB connector. 6. Locate the software toolkit’s installation file on your PC and double-click on it. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor Getting Started ...
Page 4
... When the Ready to Install dialog box, shown below, appears, review the installation configuration and click the Install button. A progress bar displays the status of the software installation and the final dialog box, shown below, appears. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Freescale Semiconductor ...
Page 5
... The application is now ready for use. If you left the Run Sensor Toolbox checkbox enabled, the application launches and detects the devices connected to the evaluation board. (See the next section.) RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor http://get ...
Page 6
... The sensor toolbox’s hardware-detection dialog box, shown below, displays. Then the MAG3110 evaluation software’s main menu, shown in the following figure, displays. 3. Open the tilt-compensated eCompass application by clicking on Full System Evaluation. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Freescale Semiconductor ...
Page 7
... Three elements in the Hard Iron frame — Six elements in the Inverse Soft Iron Matrix frame (There are not nine elements because the matrix is symmetrical.) — The geomagnetic field strength in the Calibration frame RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor 6. Quick-Start Demonstration Section 2.3, “ ...
Page 8
... The Accelerometer g frame shows the three components of the accelerometer sensor output measured in mg — The Calibrated B frame shows the magnetometer output corrected by the magnetic calibration and corrected for the tilt of the evaluation board RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Freescale Semiconductor ...
Page 9
... Return to the Hard Iron and Inverse Soft Iron Matrix frames in the middle, left portion of the Main screen and do the following to demonstrate the importance of an accurate magnetic calibration: RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor Quick-Start Demonstration ...
Page 10
... Examine calibration options by doing the following in the Calibration frame in the bottom, left of the Main screen: — Sequentially select the 10 element, 7 element, and 4 element option buttons. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Subtract checkboxes Tilt Correction checkbox ...
Page 11
... The Fit Error % value decreases and the number of green bars increases up to five, as the jammed calibration measurements are replaced by newer measurements. — Click the Reset button to immediately discard all calibrations and rotate the evaluation board to capture new calibration data. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor Quick-Start Demonstration 11 ...
Page 12
... The Calibration screen enables advanced users to change run-time parameters. To display the screen, move the mouse pointer over the Configuration bar at the bottom of the Main screen. The screen’s features are explained in the following table. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Freescale Semiconductor ...
Page 13
... Settings Min Equations Max Equations Reset Resets the Configuration screen settings to default values. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor Table 1 Configuration Frame Description These Hardware Abstraction Layer settings should be changed only if the sensor toolbox software is being ...
Page 14
... ASCII text file that can be opened with a text or spreadsheet application. When the button is clicked, a Save As dialog box, shown in the following figure, prompts the user a filename and storage location for the calibration file. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Freescale Semiconductor ...
Page 15
... Inverse Soft Iron invW[1][] Inverse Soft Iron invW[2][] The ellipsoid fit matrix equal to the square of the inverse soft-iron matrix. Ellipsoid matrix A[0][] Ellipsoid matrix A[1][] Ellipsoid matrix A[2][] RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor 108 ...
Page 16
... Smart FIFO count The actual magnetometer measurements stored in the Smart FIFO. Sample index Bpx (uT) 80 304.5 13 245.7 92 298.3 93 300.2 78 299 ...68 219.9 RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Bpy (uT) Bpz (uT) 16.9 -37.6 -6.4 -33.8 15.5 -73.2 13.6 -66 21 -23 ...
Page 17
... PlotPoints -> 100, Mesh -> None, AxesLabel -> {Bx, By, Bz}, BaseStyle -> {FontSize -> 14}, AxesLabel -> Automatic, PlotStyle -> Opacity[0.5]] Show[plot1, plot2, PlotRange -> Automatic] Show[plot3, plot4, PlotRange -> Automatic] Show[plot2, plot4, PlotRange -> Automatic] Show[plot1, plot2, plot3, plot4, PlotRange -> Automatic] RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor Advanced eCompass Features 17 ...
Page 18
... A typical mathematical plot is shown in the following figure. The raw magnetic data is shown in red and shows strong hard- and soft-iron distortions. The calibrated magnetic data is shown in blue and lies on the surface of a sphere, centered at the origin Calibrated magnetic data Raw magnetic data RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Freescale Semiconductor ...
Page 19
... The x, y and z raw accelerometer values in mg. Gpx (mg) 123.54 Gpy (mg) 111.82 Gpz (mg) 987.31 The calibrated and tilt-compensated magnetometer readings. Bpx (comp, uT) 23.22 Bpy (comp, uT) 6.78 Bpz (comp, uT) 48.6 RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor Advanced eCompass Features Start / Stop button 19 ...
Page 20
... To stop the demonstration, manipulate the sensor daughter board to position the mouse pointer over the Start/Stop button and click the PC mouse. RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev Freescale Semiconductor ...
Page 21
... The compass/yaw angle controls the rotation of the map display. The PC must be connected to the internet for this demonstration and the Adobe Shockwave software must be installed. If Adobe Shockwave is not installed, please follow the instructions at: RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2 Freescale Semiconductor http://get.adobe.com/shockwave/ Navigation Screen ...
Page 22
... Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...