mbed Workshops / Mbed OS Workshop-1-Example-2

A ticker blinky implementation.

README.md@0:41a092c2e9d3, 2016-09-26 (annotated)

Committer:
sarahmarshy
Date:
Mon Sep 26 16:13:44 2016 +0000
Revision:
0:41a092c2e9d3
Initial commit. Ticker blinky.

Who changed what in which revision?

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sarahmarshy 0:41a092c2e9d3 1 # Getting started with Blinky on mbed OS
sarahmarshy 0:41a092c2e9d3 2
sarahmarshy 0:41a092c2e9d3 3 This is a very simple guide, reviewing the steps required to get Blinky working on an mbed OS platform.
sarahmarshy 0:41a092c2e9d3 4
sarahmarshy 0:41a092c2e9d3 5 Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
sarahmarshy 0:41a092c2e9d3 6
sarahmarshy 0:41a092c2e9d3 7 ## Get the example application!
sarahmarshy 0:41a092c2e9d3 8
sarahmarshy 0:41a092c2e9d3 9 From the command line, import the example:
sarahmarshy 0:41a092c2e9d3 10
sarahmarshy 0:41a092c2e9d3 11 ```
sarahmarshy 0:41a092c2e9d3 12 mbed import mbed-os-example-blinky
sarahmarshy 0:41a092c2e9d3 13 cd mbed-os-example-blinky
sarahmarshy 0:41a092c2e9d3 14 ```
sarahmarshy 0:41a092c2e9d3 15
sarahmarshy 0:41a092c2e9d3 16 ### Now compile
sarahmarshy 0:41a092c2e9d3 17
sarahmarshy 0:41a092c2e9d3 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:
sarahmarshy 0:41a092c2e9d3 19
sarahmarshy 0:41a092c2e9d3 20 ```
sarahmarshy 0:41a092c2e9d3 21 mbed compile -m K64F -t ARM
sarahmarshy 0:41a092c2e9d3 22 ```
sarahmarshy 0:41a092c2e9d3 23
sarahmarshy 0:41a092c2e9d3 24 Your PC may take a few minutes to compile your code. At the end you should get the following result:
sarahmarshy 0:41a092c2e9d3 25
sarahmarshy 0:41a092c2e9d3 26 ```
sarahmarshy 0:41a092c2e9d3 27 [snip]
sarahmarshy 0:41a092c2e9d3 28 +----------------------------+-------+-------+------+
sarahmarshy 0:41a092c2e9d3 29 | Module | .text | .data | .bss |
sarahmarshy 0:41a092c2e9d3 30 +----------------------------+-------+-------+------+
sarahmarshy 0:41a092c2e9d3 31 | Misc | 13939 | 24 | 1372 |
sarahmarshy 0:41a092c2e9d3 32 | core/hal | 16993 | 96 | 296 |
sarahmarshy 0:41a092c2e9d3 33 | core/rtos | 7384 | 92 | 4204 |
sarahmarshy 0:41a092c2e9d3 34 | features/FEATURE_IPV4 | 80 | 0 | 176 |
sarahmarshy 0:41a092c2e9d3 35 | frameworks/greentea-client | 1830 | 60 | 44 |
sarahmarshy 0:41a092c2e9d3 36 | frameworks/utest | 2392 | 512 | 292 |
sarahmarshy 0:41a092c2e9d3 37 | Subtotals | 42618 | 784 | 6384 |
sarahmarshy 0:41a092c2e9d3 38 +----------------------------+-------+-------+------+
sarahmarshy 0:41a092c2e9d3 39 Allocated Heap: unknown
sarahmarshy 0:41a092c2e9d3 40 Allocated Stack: unknown
sarahmarshy 0:41a092c2e9d3 41 Total Static RAM memory (data + bss): 7168 bytes
sarahmarshy 0:41a092c2e9d3 42 Total RAM memory (data + bss + heap + stack): 7168 bytes
sarahmarshy 0:41a092c2e9d3 43 Total Flash memory (text + data + misc): 43402 bytes
sarahmarshy 0:41a092c2e9d3 44 Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
sarahmarshy 0:41a092c2e9d3 45 ```
sarahmarshy 0:41a092c2e9d3 46
sarahmarshy 0:41a092c2e9d3 47 ### Program your board
sarahmarshy 0:41a092c2e9d3 48
sarahmarshy 0:41a092c2e9d3 49 1. Connect your mbed device to the computer over USB.
sarahmarshy 0:41a092c2e9d3 50 1. Copy the binary file to the mbed device .
sarahmarshy 0:41a092c2e9d3 51 1. Press the reset button to start the program.
sarahmarshy 0:41a092c2e9d3 52
sarahmarshy 0:41a092c2e9d3 53 You should see the LED of your platform turning on and off.
sarahmarshy 0:41a092c2e9d3 54
sarahmarshy 0:41a092c2e9d3 55 Congratulations if you managed to complete this test!
sarahmarshy 0:41a092c2e9d3 56
sarahmarshy 0:41a092c2e9d3 57 ## Export the project to Keil MDK and debug your application
sarahmarshy 0:41a092c2e9d3 58
sarahmarshy 0:41a092c2e9d3 59 From the command line, run the following command:
sarahmarshy 0:41a092c2e9d3 60
sarahmarshy 0:41a092c2e9d3 61 ```
sarahmarshy 0:41a092c2e9d3 62 mbed export -m K64F -i uvision
sarahmarshy 0:41a092c2e9d3 63 ```
sarahmarshy 0:41a092c2e9d3 64
sarahmarshy 0:41a092c2e9d3 65 You should see the following output:
sarahmarshy 0:41a092c2e9d3 66
sarahmarshy 0:41a092c2e9d3 67 ```
sarahmarshy 0:41a092c2e9d3 68 Successful exports:
sarahmarshy 0:41a092c2e9d3 69 * K64F::uvision .\projectfiles\uvision_K64F\Unnamed_Project
sarahmarshy 0:41a092c2e9d3 70 ```
sarahmarshy 0:41a092c2e9d3 71
sarahmarshy 0:41a092c2e9d3 72 To debug the application:
sarahmarshy 0:41a092c2e9d3 73
sarahmarshy 0:41a092c2e9d3 74 1. Start uVision.
sarahmarshy 0:41a092c2e9d3 75 1. Import the uVision project generated earlier.
sarahmarshy 0:41a092c2e9d3 76 1. Compile your application and generate an `.axf` file.
sarahmarshy 0:41a092c2e9d3 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).
sarahmarshy 0:41a092c2e9d3 78 1. Set breakpoints and start a debug session.
sarahmarshy 0:41a092c2e9d3 79
sarahmarshy 0:41a092c2e9d3 80 ![Image of uVision](img/uvision.png)
sarahmarshy 0:41a092c2e9d3 81
sarahmarshy 0:41a092c2e9d3 82 ## Troubleshooting
sarahmarshy 0:41a092c2e9d3 83
sarahmarshy 0:41a092c2e9d3 84 1. Make sure `mbed-cli` is working correctly and its version is greater than `0.8.9`
sarahmarshy 0:41a092c2e9d3 85
sarahmarshy 0:41a092c2e9d3 86 ```
sarahmarshy 0:41a092c2e9d3 87 mbed --version
sarahmarshy 0:41a092c2e9d3 88 ```
sarahmarshy 0:41a092c2e9d3 89
sarahmarshy 0:41a092c2e9d3 90 If not, you can update it easily:
sarahmarshy 0:41a092c2e9d3 91
sarahmarshy 0:41a092c2e9d3 92 ```
sarahmarshy 0:41a092c2e9d3 93 pip install mbed-cli --upgrade
sarahmarshy 0:41a092c2e9d3 94 ```
sarahmarshy 0:41a092c2e9d3 95
sarahmarshy 0:41a092c2e9d3 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.