haoran deng / Mbed OS xbed-os-example-hr

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README.md@0:e7b18b5f6a11, 2017-04-15 (annotated)

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hrdeng
Date:
Sat Apr 15 06:55:32 2017 +0000
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0:e7b18b5f6a11
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hrdeng 0:e7b18b5f6a11 1 # Getting started with Blinky on mbed OS
hrdeng 0:e7b18b5f6a11 2
hrdeng 0:e7b18b5f6a11 3 This guide reviews the steps required to get Blinky working on an mbed OS platform.
hrdeng 0:e7b18b5f6a11 4
hrdeng 0:e7b18b5f6a11 5 Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
hrdeng 0:e7b18b5f6a11 6
hrdeng 0:e7b18b5f6a11 7 ## Import the example application
hrdeng 0:e7b18b5f6a11 8
hrdeng 0:e7b18b5f6a11 9 From the command-line, import the example:
hrdeng 0:e7b18b5f6a11 10
hrdeng 0:e7b18b5f6a11 11 ```
hrdeng 0:e7b18b5f6a11 12 mbed import mbed-os-example-blinky
hrdeng 0:e7b18b5f6a11 13 cd mbed-os-example-blinky
hrdeng 0:e7b18b5f6a11 14 ```
hrdeng 0:e7b18b5f6a11 15
hrdeng 0:e7b18b5f6a11 16 ### Now compile
hrdeng 0:e7b18b5f6a11 17
hrdeng 0:e7b18b5f6a11 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:
hrdeng 0:e7b18b5f6a11 19
hrdeng 0:e7b18b5f6a11 20 ```
hrdeng 0:e7b18b5f6a11 21 mbed compile -m K64F -t ARM
hrdeng 0:e7b18b5f6a11 22 ```
hrdeng 0:e7b18b5f6a11 23
hrdeng 0:e7b18b5f6a11 24 Your PC may take a few minutes to compile your code. At the end, you see the following result:
hrdeng 0:e7b18b5f6a11 25
hrdeng 0:e7b18b5f6a11 26 ```
hrdeng 0:e7b18b5f6a11 27 [snip]
hrdeng 0:e7b18b5f6a11 28 +----------------------------+-------+-------+------+
hrdeng 0:e7b18b5f6a11 29 | Module | .text | .data | .bss |
hrdeng 0:e7b18b5f6a11 30 +----------------------------+-------+-------+------+
hrdeng 0:e7b18b5f6a11 31 | Misc | 13939 | 24 | 1372 |
hrdeng 0:e7b18b5f6a11 32 | core/hal | 16993 | 96 | 296 |
hrdeng 0:e7b18b5f6a11 33 | core/rtos | 7384 | 92 | 4204 |
hrdeng 0:e7b18b5f6a11 34 | features/FEATURE_IPV4 | 80 | 0 | 176 |
hrdeng 0:e7b18b5f6a11 35 | frameworks/greentea-client | 1830 | 60 | 44 |
hrdeng 0:e7b18b5f6a11 36 | frameworks/utest | 2392 | 512 | 292 |
hrdeng 0:e7b18b5f6a11 37 | Subtotals | 42618 | 784 | 6384 |
hrdeng 0:e7b18b5f6a11 38 +----------------------------+-------+-------+------+
hrdeng 0:e7b18b5f6a11 39 Allocated Heap: unknown
hrdeng 0:e7b18b5f6a11 40 Allocated Stack: unknown
hrdeng 0:e7b18b5f6a11 41 Total Static RAM memory (data + bss): 7168 bytes
hrdeng 0:e7b18b5f6a11 42 Total RAM memory (data + bss + heap + stack): 7168 bytes
hrdeng 0:e7b18b5f6a11 43 Total Flash memory (text + data + misc): 43402 bytes
hrdeng 0:e7b18b5f6a11 44 Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
hrdeng 0:e7b18b5f6a11 45 ```
hrdeng 0:e7b18b5f6a11 46
hrdeng 0:e7b18b5f6a11 47 ### Program your board
hrdeng 0:e7b18b5f6a11 48
hrdeng 0:e7b18b5f6a11 49 1. Connect your mbed device to the computer over USB.
hrdeng 0:e7b18b5f6a11 50 1. Copy the binary file to the mbed device.
hrdeng 0:e7b18b5f6a11 51 1. Press the reset button to start the program.
hrdeng 0:e7b18b5f6a11 52
hrdeng 0:e7b18b5f6a11 53 The LED on your platform turns on and off.
hrdeng 0:e7b18b5f6a11 54
hrdeng 0:e7b18b5f6a11 55 ## Export the project to Keil MDK, and debug your application
hrdeng 0:e7b18b5f6a11 56
hrdeng 0:e7b18b5f6a11 57 From the command-line, run the following command:
hrdeng 0:e7b18b5f6a11 58
hrdeng 0:e7b18b5f6a11 59 ```
hrdeng 0:e7b18b5f6a11 60 mbed export -m K64F -i uvision
hrdeng 0:e7b18b5f6a11 61 ```
hrdeng 0:e7b18b5f6a11 62
hrdeng 0:e7b18b5f6a11 63 To debug the application:
hrdeng 0:e7b18b5f6a11 64
hrdeng 0:e7b18b5f6a11 65 1. Start uVision.
hrdeng 0:e7b18b5f6a11 66 1. Import the uVision project generated earlier.
hrdeng 0:e7b18b5f6a11 67 1. Compile your application, and generate an `.axf` file.
hrdeng 0:e7b18b5f6a11 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).
hrdeng 0:e7b18b5f6a11 69 1. Set breakpoints, and start a debug session.
hrdeng 0:e7b18b5f6a11 70
hrdeng 0:e7b18b5f6a11 71 ![Image of uVision](img/uvision.png)
hrdeng 0:e7b18b5f6a11 72
hrdeng 0:e7b18b5f6a11 73 ## Troubleshooting
hrdeng 0:e7b18b5f6a11 74
hrdeng 0:e7b18b5f6a11 75 1. Make sure `mbed-cli` is working correctly and its version is `>1.0.0`
hrdeng 0:e7b18b5f6a11 76
hrdeng 0:e7b18b5f6a11 77 ```
hrdeng 0:e7b18b5f6a11 78 mbed --version
hrdeng 0:e7b18b5f6a11 79 ```
hrdeng 0:e7b18b5f6a11 80
hrdeng 0:e7b18b5f6a11 81 If not, you can update it:
hrdeng 0:e7b18b5f6a11 82
hrdeng 0:e7b18b5f6a11 83 ```
hrdeng 0:e7b18b5f6a11 84 pip install mbed-cli --upgrade
hrdeng 0:e7b18b5f6a11 85 ```
hrdeng 0:e7b18b5f6a11 86
hrdeng 0:e7b18b5f6a11 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.