71 lines
2.3 KiB
Plaintext
71 lines
2.3 KiB
Plaintext
Overview
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========
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The bubble level demo demonstrates basic usage of the on-board accelerometer to implement a bubble level. A bubble
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level utilizes two axes to visually show deviation from a level plane (0 degrees) on a given axis.
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The following files are generated by MCUXpresso Config Tools:
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- bubble_peripheral.mex: This mex file contains pin/clock/peripheral settings of this example. User can modify the settings in config tool and generate new source file for pin/clock/peripheral.
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- peripheral.c/.h: These files are generated by MCUXpresso peripherals tool which could be imported back to the tool.
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- clock_config.c/.h: These files are generated by MCUXpresso clocks tool which could be imported back to the tool.
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- pin_mux.c/.h: These files are generated by MCUXpresso pins tool which could be imported back to the tool.
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Toolchain supported
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===================
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- IAR embedded Workbench 9.30.1
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- Keil MDK 5.37
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- GCC ARM Embedded 10.3.1
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- MCUXpresso 11.6.0
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Hardware requirements
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=====================
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- Mini/micro USB cable
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- EVK_MIMXRT1020 board
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- Personal Computer
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Board settings
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==============
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No special settings are required.
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Prepare the Demo
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================
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1. Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
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2. Open a serial terminal with the following settings:
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- 115200 baud rate
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- 8 data bits
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- No parity
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- One stop bit
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- No flow control
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3. Download the program to the target board.
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4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
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Running the demo
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================
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When the example runs successfully, you can see the similar
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information from the terminal as shown below.
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~~~~~~~~~~~~~~~~~~~~~
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Welcome to the BUBBLE example
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You will see the change of LED brightness when change angles of board
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x= 6 y = 22
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x= 8 y = 26
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x= 10 y = 28
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x= 10 y = 28
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x= 11 y = 29
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x= 11 y = 29
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~~~~~~~~~~~~~~~~~~~~~
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Note:
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if sensor chip(U26) is not welded on the board, the LED will be blinking
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Note:
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To debug in qspiflash, following steps are needed:
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1. Select the flash target and compile.
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2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
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3. Start debugging in IDE.
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- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
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