Hexiwear / Mbed OS Hexi_Gyro_Example

Simple gyroscope program example for Hexiwear featuring UART

Dependencies:   FXAS21002

Fork of Hexi_gyro_app by Mac Lobdell

This project demonstrates the use of the FXAS21002CQ Gyroscope sensor embedded in hexiwear

Open a Hyperterminal tool on your computer and connect it to the "mbed Serial port (COMxx)" with Baud rate "9600bps"

Compile the project and copy the binary "Hexi_Gyro_Example_HEXIWEAR.bin" in the DAP-LINK drive from your computer file explorer Press the K64F-RESET button on the docking station to start the program on your board

Every 1s the value of the Gyroscope for the Axis Roll, Pitch and Yaw plus their RMS value will be displayed in the Hyperterminal window and the LED will blink Green

README.md@1:d26e406e92f9, 2016-08-15 (annotated)

Committer:
GregC
Date:
Mon Aug 15 23:33:04 2016 +0000
Revision:
1:d26e406e92f9
Parent:
0:b0767be19223 
Gyroscope program example for Hexiwear

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maclobdell 0:b0767be19223 1 # Getting started with Blinky on mbed OS
maclobdell 0:b0767be19223 2
maclobdell 0:b0767be19223 3 This is a very simple guide, reviewing the steps required to get Blinky working on an mbed OS platform.
maclobdell 0:b0767be19223 4
maclobdell 0:b0767be19223 5 Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
maclobdell 0:b0767be19223 6
maclobdell 0:b0767be19223 7 ## Get the example application!
maclobdell 0:b0767be19223 8
maclobdell 0:b0767be19223 9 From the command line, import the example:
maclobdell 0:b0767be19223 10
maclobdell 0:b0767be19223 11 ```
maclobdell 0:b0767be19223 12 mbed import mbed-os-example-blinky
maclobdell 0:b0767be19223 13 cd mbed-os-example-blinky
maclobdell 0:b0767be19223 14 ```
maclobdell 0:b0767be19223 15
maclobdell 0:b0767be19223 16 ### Now compile
maclobdell 0:b0767be19223 17
maclobdell 0:b0767be19223 18 Invoke `mbed compile` specifying the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
maclobdell 0:b0767be19223 19
maclobdell 0:b0767be19223 20 ```
maclobdell 0:b0767be19223 21 mbed compile -m K64F -t ARM
maclobdell 0:b0767be19223 22 ```
maclobdell 0:b0767be19223 23
maclobdell 0:b0767be19223 24 Your PC may take a few minutes to compile your code. At the end you should get the following result:
maclobdell 0:b0767be19223 25
maclobdell 0:b0767be19223 26 ```
maclobdell 0:b0767be19223 27 [snip]
maclobdell 0:b0767be19223 28 +----------------------------+-------+-------+------+
maclobdell 0:b0767be19223 29 | Module | .text | .data | .bss |
maclobdell 0:b0767be19223 30 +----------------------------+-------+-------+------+
maclobdell 0:b0767be19223 31 | Misc | 13939 | 24 | 1372 |
maclobdell 0:b0767be19223 32 | core/hal | 16993 | 96 | 296 |
maclobdell 0:b0767be19223 33 | core/rtos | 7384 | 92 | 4204 |
maclobdell 0:b0767be19223 34 | features/FEATURE_IPV4 | 80 | 0 | 176 |
maclobdell 0:b0767be19223 35 | frameworks/greentea-client | 1830 | 60 | 44 |
maclobdell 0:b0767be19223 36 | frameworks/utest | 2392 | 512 | 292 |
maclobdell 0:b0767be19223 37 | Subtotals | 42618 | 784 | 6384 |
maclobdell 0:b0767be19223 38 +----------------------------+-------+-------+------+
maclobdell 0:b0767be19223 39 Allocated Heap: unknown
maclobdell 0:b0767be19223 40 Allocated Stack: unknown
maclobdell 0:b0767be19223 41 Total Static RAM memory (data + bss): 7168 bytes
maclobdell 0:b0767be19223 42 Total RAM memory (data + bss + heap + stack): 7168 bytes
maclobdell 0:b0767be19223 43 Total Flash memory (text + data + misc): 43402 bytes
maclobdell 0:b0767be19223 44 Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
maclobdell 0:b0767be19223 45 ```
maclobdell 0:b0767be19223 46
maclobdell 0:b0767be19223 47 ### Program your board
maclobdell 0:b0767be19223 48
maclobdell 0:b0767be19223 49 1. Connect your mbed device to the computer over USB.
maclobdell 0:b0767be19223 50 1. Copy the binary file to the mbed device .
maclobdell 0:b0767be19223 51 1. Press the reset button to start the program.
maclobdell 0:b0767be19223 52
maclobdell 0:b0767be19223 53 You should see the LED of your platform turning on and off.
maclobdell 0:b0767be19223 54
maclobdell 0:b0767be19223 55 Congratulations if you managed to complete this test!
maclobdell 0:b0767be19223 56
maclobdell 0:b0767be19223 57 ## Export the project to Keil MDK and debug your application
maclobdell 0:b0767be19223 58
maclobdell 0:b0767be19223 59 From the command line, run the following command:
maclobdell 0:b0767be19223 60
maclobdell 0:b0767be19223 61 ```
maclobdell 0:b0767be19223 62 mbed export -m K64F -i uvision
maclobdell 0:b0767be19223 63 ```
maclobdell 0:b0767be19223 64
maclobdell 0:b0767be19223 65 You should see the following output:
maclobdell 0:b0767be19223 66
maclobdell 0:b0767be19223 67 ```
maclobdell 0:b0767be19223 68 Successful exports:
maclobdell 0:b0767be19223 69 * K64F::uvision .\projectfiles\uvision_K64F\Unnamed_Project
maclobdell 0:b0767be19223 70 ```
maclobdell 0:b0767be19223 71
maclobdell 0:b0767be19223 72 To debug the application:
maclobdell 0:b0767be19223 73
maclobdell 0:b0767be19223 74 1. Start uVision.
maclobdell 0:b0767be19223 75 1. Import the uVision project generated earlier.
maclobdell 0:b0767be19223 76 1. Compile your application and generate an `.axf` file.
maclobdell 0:b0767be19223 77 1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger).
maclobdell 0:b0767be19223 78 1. Set breakpoints and start a debug session.
maclobdell 0:b0767be19223 79
maclobdell 0:b0767be19223 80 ![Image of uVision](img/uvision.png)
maclobdell 0:b0767be19223 81
maclobdell 0:b0767be19223 82 ## Troubleshooting
maclobdell 0:b0767be19223 83
maclobdell 0:b0767be19223 84 1. Make sure `mbed-cli` is working correctly and its version is greater than `0.8.9`
maclobdell 0:b0767be19223 85
maclobdell 0:b0767be19223 86 ```
maclobdell 0:b0767be19223 87 mbed --version
maclobdell 0:b0767be19223 88 ```
maclobdell 0:b0767be19223 89
maclobdell 0:b0767be19223 90 If not, you can update it easily:
maclobdell 0:b0767be19223 91
maclobdell 0:b0767be19223 92 ```
maclobdell 0:b0767be19223 93 pip install mbed-cli --upgrade
maclobdell 0:b0767be19223 94 ```
maclobdell 0:b0767be19223 95
maclobdell 0:b0767be19223 96 2. If using Keil MDK, make sure you have a license installed. [MDK-Lite](http://www.keil.com/arm/mdk.asp) has a 32KB restriction on code size.