ecompass#
Overview#
The E-Compass demo application demonstrates the use of the FXOS8700 sensor. The tilt-compensated algorithm calculates all three angles (pitch, roll, and yaw or compass heading).
Supported Boards#
EVKB-IMXRT1050
Hardware requirements
Mini/micro USB cable
EVKB-IMXRT1050 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 313 - My: 432 - Mz: 494
Compass Angle: xxxx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
EVK-MCIMX7ULP
Hardware requirements
Micro USB cable
MCIMX7ULP-EVK board
J-Link Debug Probe
5V power supply
Personal Computer
Board settings
No special setting is needed.
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 5V power supply and J-Link Debug Probe to the board, switch SW1 to power on the board.
Connect a micro USB cable between the host PC and the J6 USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 348 - My: 99 - Mz: 117
Compass Angle: -54.8
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
EVK-MIMXRT1010
Hardware requirements
Mini/micro USB cable
EVK-MIMXRT1010 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 313 - My: 432 - Mz: 494
Compass Angle: xxxx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Note:
To debug in qspiflash, following steps are needed:
1. Select the flash target and compile.
2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J41.
3. Start debugging in IDE.
- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
EVK-MIMXRT1015
Hardware requirements
Mini/micro USB cable
EVK-MIMXRT1015 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 313 - My: 432 - Mz: 494
Compass Angle: xxxx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Note:
To debug in qspiflash, following steps are needed:
1. Select the flash target and compile.
3. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J41.
4. Start debugging in IDE.
- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
EVK-MIMXRT1020
Hardware requirements
Mini/micro USB cable
EVK-MIMXRT1020 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 313 - My: 432 - Mz: 494
Compass Angle: xxxx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
##### Note:
if sensor chip(U26) is not welded on the board, the LED will be blinking
Note:
To debug in qspiflash, following steps are needed:
1. Select the flash target and compile.
2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
3. Start debugging in IDE.
- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
MIMXRT1024-EVK
Hardware requirements
Mini/micro USB cable
MIMXRT1024-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 313 - My: 432 - Mz: 494
Compass Angle: xxxx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
##### Note:
if sensor chip(U26) is not welded on the board, the LED will be blinking
Note:
To debug in qspiflash, following steps are needed:
1. Select the flash target and compile.
2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
3. Start debugging in IDE.
- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
MIMXRT1160-EVK
Hardware requirements
Mini/micro USB cable
MIMXRT1160-EVK board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 313 - My: 432 - Mz: 494
Compass Angle: xxxx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
FRDM-K32L2A4S
Hardware requirements
Mini/micro USB cable
FRDM-K32L2A4S board
Personal Computer
Board settings
No special is needed.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 313 - My: 432 - Mz: 494
Compass Angle: xxxx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
FRDM-KE16Z
Hardware requirements
Micro USB cable
FRDM-KE16Z board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below. Note: you must rotate the board 360 degrees to get max , min value magnetic field.
To calibrate Magnetometer, roll the board on all orientations to get max and min values
Press any key to start calibrating...
Calibrating magnetometer...
Calibrate magnetometer successfully!
Magnetometer offset Mx: 348 - My: 99 - Mz: 117
Compass Angle: -54.8