Marksin Qiu / Mbed OS mbed-os-example-blinky

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README.md@0:ce3e856eae4e, 2017-03-23 (annotated)

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marksin
Date:
Thu Mar 23 10:37:39 2017 +0000
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marksin 0:ce3e856eae4e 1 # Getting started with Blinky on mbed OS
marksin 0:ce3e856eae4e 2
marksin 0:ce3e856eae4e 3 This guide reviews the steps required to get Blinky working on an mbed OS platform.
marksin 0:ce3e856eae4e 4
marksin 0:ce3e856eae4e 5 Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
marksin 0:ce3e856eae4e 6
marksin 0:ce3e856eae4e 7 ## Import the example application
marksin 0:ce3e856eae4e 8
marksin 0:ce3e856eae4e 9 From the command-line, import the example:
marksin 0:ce3e856eae4e 10
marksin 0:ce3e856eae4e 11 ```
marksin 0:ce3e856eae4e 12 mbed import mbed-os-example-blinky
marksin 0:ce3e856eae4e 13 cd mbed-os-example-blinky
marksin 0:ce3e856eae4e 14 ```
marksin 0:ce3e856eae4e 15
marksin 0:ce3e856eae4e 16 ### Now compile
marksin 0:ce3e856eae4e 17
marksin 0:ce3e856eae4e 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:
marksin 0:ce3e856eae4e 19
marksin 0:ce3e856eae4e 20 ```
marksin 0:ce3e856eae4e 21 mbed compile -m K64F -t ARM
marksin 0:ce3e856eae4e 22 ```
marksin 0:ce3e856eae4e 23
marksin 0:ce3e856eae4e 24 Your PC may take a few minutes to compile your code. At the end, you see the following result:
marksin 0:ce3e856eae4e 25
marksin 0:ce3e856eae4e 26 ```
marksin 0:ce3e856eae4e 27 [snip]
marksin 0:ce3e856eae4e 28 +----------------------------+-------+-------+------+
marksin 0:ce3e856eae4e 29 | Module | .text | .data | .bss |
marksin 0:ce3e856eae4e 30 +----------------------------+-------+-------+------+
marksin 0:ce3e856eae4e 31 | Misc | 13939 | 24 | 1372 |
marksin 0:ce3e856eae4e 32 | core/hal | 16993 | 96 | 296 |
marksin 0:ce3e856eae4e 33 | core/rtos | 7384 | 92 | 4204 |
marksin 0:ce3e856eae4e 34 | features/FEATURE_IPV4 | 80 | 0 | 176 |
marksin 0:ce3e856eae4e 35 | frameworks/greentea-client | 1830 | 60 | 44 |
marksin 0:ce3e856eae4e 36 | frameworks/utest | 2392 | 512 | 292 |
marksin 0:ce3e856eae4e 37 | Subtotals | 42618 | 784 | 6384 |
marksin 0:ce3e856eae4e 38 +----------------------------+-------+-------+------+
marksin 0:ce3e856eae4e 39 Allocated Heap: unknown
marksin 0:ce3e856eae4e 40 Allocated Stack: unknown
marksin 0:ce3e856eae4e 41 Total Static RAM memory (data + bss): 7168 bytes
marksin 0:ce3e856eae4e 42 Total RAM memory (data + bss + heap + stack): 7168 bytes
marksin 0:ce3e856eae4e 43 Total Flash memory (text + data + misc): 43402 bytes
marksin 0:ce3e856eae4e 44 Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
marksin 0:ce3e856eae4e 45 ```
marksin 0:ce3e856eae4e 46
marksin 0:ce3e856eae4e 47 ### Program your board
marksin 0:ce3e856eae4e 48
marksin 0:ce3e856eae4e 49 1. Connect your mbed device to the computer over USB.
marksin 0:ce3e856eae4e 50 1. Copy the binary file to the mbed device.
marksin 0:ce3e856eae4e 51 1. Press the reset button to start the program.
marksin 0:ce3e856eae4e 52
marksin 0:ce3e856eae4e 53 The LED on your platform turns on and off.
marksin 0:ce3e856eae4e 54
marksin 0:ce3e856eae4e 55 ## Export the project to Keil MDK, and debug your application
marksin 0:ce3e856eae4e 56
marksin 0:ce3e856eae4e 57 From the command-line, run the following command:
marksin 0:ce3e856eae4e 58
marksin 0:ce3e856eae4e 59 ```
marksin 0:ce3e856eae4e 60 mbed export -m K64F -i uvision
marksin 0:ce3e856eae4e 61 ```
marksin 0:ce3e856eae4e 62
marksin 0:ce3e856eae4e 63 To debug the application:
marksin 0:ce3e856eae4e 64
marksin 0:ce3e856eae4e 65 1. Start uVision.
marksin 0:ce3e856eae4e 66 1. Import the uVision project generated earlier.
marksin 0:ce3e856eae4e 67 1. Compile your application, and generate an `.axf` file.
marksin 0:ce3e856eae4e 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).
marksin 0:ce3e856eae4e 69 1. Set breakpoints, and start a debug session.
marksin 0:ce3e856eae4e 70
marksin 0:ce3e856eae4e 71 ![Image of uVision](img/uvision.png)
marksin 0:ce3e856eae4e 72
marksin 0:ce3e856eae4e 73 ## Troubleshooting
marksin 0:ce3e856eae4e 74
marksin 0:ce3e856eae4e 75 1. Make sure `mbed-cli` is working correctly and its version is `>1.0.0`
marksin 0:ce3e856eae4e 76
marksin 0:ce3e856eae4e 77 ```
marksin 0:ce3e856eae4e 78 mbed --version
marksin 0:ce3e856eae4e 79 ```
marksin 0:ce3e856eae4e 80
marksin 0:ce3e856eae4e 81 If not, you can update it:
marksin 0:ce3e856eae4e 82
marksin 0:ce3e856eae4e 83 ```
marksin 0:ce3e856eae4e 84 pip install mbed-cli --upgrade
marksin 0:ce3e856eae4e 85 ```
marksin 0:ce3e856eae4e 86
marksin 0:ce3e856eae4e 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.