Crispin Mukalay / Mbed OS MPU_6050_Hello_World

Read accelerometer and gyroscope measurements from the MPU-6050. The MPU-60X0 is the world’s first integrated 6-axis MotionTracking device that combines a 3-axis gyroscope, 3-axis accelerometer, and a Digital Motion Processor™ (DMP) all in a small 4x4x0.9mm package. With its dedicated I2C sensor bus, it directly accepts inputs from an external 3-axis compass to provide a complete 9-axis MotionFusion™ output.

Dependencies:   MPU6050

README.md@0:1221112820f7, 2018-10-18 (annotated)

Committer:
213468891
Date:
Thu Oct 18 17:04:36 2018 +0000
Revision:
0:1221112820f7
Demonstrates how to read gyroscope and accelerometer values from the MPU-6050 module.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
213468891 0:1221112820f7 1 # Getting started with Blinky on mbed OS
213468891 0:1221112820f7 2
213468891 0:1221112820f7 3 This guide reviews the steps required to get Blinky working on an mbed OS platform.
213468891 0:1221112820f7 4
213468891 0:1221112820f7 5 Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
213468891 0:1221112820f7 6
213468891 0:1221112820f7 7 ## Import the example application
213468891 0:1221112820f7 8
213468891 0:1221112820f7 9 From the command-line, import the example:
213468891 0:1221112820f7 10
213468891 0:1221112820f7 11 ```
213468891 0:1221112820f7 12 mbed import mbed-os-example-blinky
213468891 0:1221112820f7 13 cd mbed-os-example-blinky
213468891 0:1221112820f7 14 ```
213468891 0:1221112820f7 15
213468891 0:1221112820f7 16 ### Now compile
213468891 0:1221112820f7 17
213468891 0:1221112820f7 18 Invoke `mbed compile`, and specify the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
213468891 0:1221112820f7 19
213468891 0:1221112820f7 20 ```
213468891 0:1221112820f7 21 mbed compile -m K64F -t ARM
213468891 0:1221112820f7 22 ```
213468891 0:1221112820f7 23
213468891 0:1221112820f7 24 Your PC may take a few minutes to compile your code. At the end, you see the following result:
213468891 0:1221112820f7 25
213468891 0:1221112820f7 26 ```
213468891 0:1221112820f7 27 [snip]
213468891 0:1221112820f7 28 +----------------------------+-------+-------+------+
213468891 0:1221112820f7 29 | Module | .text | .data | .bss |
213468891 0:1221112820f7 30 +----------------------------+-------+-------+------+
213468891 0:1221112820f7 31 | Misc | 13939 | 24 | 1372 |
213468891 0:1221112820f7 32 | core/hal | 16993 | 96 | 296 |
213468891 0:1221112820f7 33 | core/rtos | 7384 | 92 | 4204 |
213468891 0:1221112820f7 34 | features/FEATURE_IPV4 | 80 | 0 | 176 |
213468891 0:1221112820f7 35 | frameworks/greentea-client | 1830 | 60 | 44 |
213468891 0:1221112820f7 36 | frameworks/utest | 2392 | 512 | 292 |
213468891 0:1221112820f7 37 | Subtotals | 42618 | 784 | 6384 |
213468891 0:1221112820f7 38 +----------------------------+-------+-------+------+
213468891 0:1221112820f7 39 Allocated Heap: unknown
213468891 0:1221112820f7 40 Allocated Stack: unknown
213468891 0:1221112820f7 41 Total Static RAM memory (data + bss): 7168 bytes
213468891 0:1221112820f7 42 Total RAM memory (data + bss + heap + stack): 7168 bytes
213468891 0:1221112820f7 43 Total Flash memory (text + data + misc): 43402 bytes
213468891 0:1221112820f7 44 Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
213468891 0:1221112820f7 45 ```
213468891 0:1221112820f7 46
213468891 0:1221112820f7 47 ### Program your board
213468891 0:1221112820f7 48
213468891 0:1221112820f7 49 1. Connect your mbed device to the computer over USB.
213468891 0:1221112820f7 50 1. Copy the binary file to the mbed device.
213468891 0:1221112820f7 51 1. Press the reset button to start the program.
213468891 0:1221112820f7 52
213468891 0:1221112820f7 53 The LED on your platform turns on and off.
213468891 0:1221112820f7 54
213468891 0:1221112820f7 55 ## Export the project to Keil MDK, and debug your application
213468891 0:1221112820f7 56
213468891 0:1221112820f7 57 From the command-line, run the following command:
213468891 0:1221112820f7 58
213468891 0:1221112820f7 59 ```
213468891 0:1221112820f7 60 mbed export -m K64F -i uvision
213468891 0:1221112820f7 61 ```
213468891 0:1221112820f7 62
213468891 0:1221112820f7 63 To debug the application:
213468891 0:1221112820f7 64
213468891 0:1221112820f7 65 1. Start uVision.
213468891 0:1221112820f7 66 1. Import the uVision project generated earlier.
213468891 0:1221112820f7 67 1. Compile your application, and generate an `.axf` file.
213468891 0:1221112820f7 68 1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger).
213468891 0:1221112820f7 69 1. Set breakpoints, and start a debug session.
213468891 0:1221112820f7 70
213468891 0:1221112820f7 71 ![Image of uVision](img/uvision.png)
213468891 0:1221112820f7 72
213468891 0:1221112820f7 73 ## Troubleshooting
213468891 0:1221112820f7 74
213468891 0:1221112820f7 75 1. Make sure `mbed-cli` is working correctly and its version is `>1.0.0`
213468891 0:1221112820f7 76
213468891 0:1221112820f7 77 ```
213468891 0:1221112820f7 78 mbed --version
213468891 0:1221112820f7 79 ```
213468891 0:1221112820f7 80
213468891 0:1221112820f7 81 If not, you can update it:
213468891 0:1221112820f7 82
213468891 0:1221112820f7 83 ```
213468891 0:1221112820f7 84 pip install mbed-cli --upgrade
213468891 0:1221112820f7 85 ```
213468891 0:1221112820f7 86
213468891 0:1221112820f7 87 2. If using Keil MDK, make sure you have a license installed. [MDK-Lite](http://www.keil.com/arm/mdk.asp) has a 32 KB restriction on code size.