版本 156342f7b44d4502eabe06e10fd3bf4a9245221f

embedded/Lab6

Changes from 156342f7b44d4502eabe06e10fd3bf4a9245221f to 93447e9dc7392bfc5f89f503f4d4d0da6ddae0f4

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title: Lab6: Hardware
toc: no
...


預期目標
-------
- 實際體驗 STM32 硬體操作
- 以 `STM32F4-Discovery<http://www.st.com/internet/evalboard/product/252419.jsp>`_ 為參考硬體，探討相關的軟體開發工具與流程
- Unit Test 概念的落實


開發工具介紹與準備
----------------
- GNU Toolchain: 同之前 Lab
- ICE = In-Circuit Emulator
- `Remote Debugging using GDB<http://www.codeproject.com/Articles/14983/Remote-Debugging-using-GDB>`_

.. code-block:: prettyprint

    sudo apt-get install automake* libtool libusb-1.0-0-dev
    git clone http://github.com/texane/stlink.git
    cd stlink
    ./autogen.sh
    ./configure --prefix=/usr
    make
    sudo make install
    sudo cp 49-stlinkv2.rules /etc/udev/rules.d/

- 取得 OpenOCD 原始程式碼

.. code-block:: prettyprint

    git clone git://openocd.git.sourceforge.net/gitroot/openocd/openocd

  * 或者 `openocd-d2f61e1a4592449188305164b27f495f78dca00a.tar.bz2</embedded/Lab6/openocd-d2f61e1a4592449188305164b27f495f78dca00a.tar.bz2>`_

- 編譯 OpenOCD

.. code-block:: prettyprint

    cd openocd
    ./bootstrap
    ./configure --prefix=/opt/openocd \
        --enable-jlink \
        --enable-amtjtagaccel \
        --enable-buspirate \
        --enable-stlink \
        --disable-libftdi
    echo -e "all:\ninstall:" > doc/Makefile
    make
    sudo make install


Programming STM32 F2, F4 ARMs under Linux
------------------------------------------
- `A Tutorial from Scratch<http://www.triplespark.net/elec/pdev/arm/stm32.html>`_
  * Introduction STM32, STM32F2, STM32F4
  * Obtaining and Setting Up OpenOCD
  * Setting up the Hardware: STM32F4Discovery with integrated ST-Link/V2
  * The Minimalistic Hello-World Program
  * Running the Minimalistic Hello-World Program
  * Debugging
  * Automating the Steps

工作環境
-------
- 取得最新 Labs 內容 (與之前 `Lab3</embedded/Lab3>`_ 操作相似)：

.. code-block:: prettyprint

    git clone git://gitcafe.com/embedded2012/Labs.git
    cd Labs/Lab-6

或是

.. code-block:: prettyprint

    cd Labs/Lab-6
    git pull



具備互動操作的 USB serial 實做
----------------------------
- http://www.sparetimelabs.com/usbcdcacm/ (文末提到與之前指定作業相關的技術議題)
- USB list: /var/lib/usbutils/usb.ids
- neocon 離開方法: ``~.``
  * neocon /dev/ttyACM0

- http://wiki.openmoko.org/wiki/NeoCon
- http://wiki.openmoko.org/wiki/CDC_ACM


示範程式碼
--------

.. code-block:: prettyprint

    cd Labs/Lab-6/discoveryF4
    make
    cd discovery_demo
    make flash
    cd ../serialUSB/
    make flash


作業
----
- 透過 OpenOCD 對 STM32F4Discovery 內建的 ST-Link/V2 介面，設計一個驗證硬體的 unit test 環境
- 藉由 OpenOCD + GDB，實做 firmware download 程式，可視為 boot loader
- 一旦系統藉由特製的 boot loader 載入於 STM32F4-Discovery 硬體並啟動後，可監控系統運作並執行特定的 unit test 程式
- 驗證方式: ``cd Labs/Lab-6 && make all``


參考資訊
-------
- `STM32F4-Discovery 繁體中文簡易操作<http://cms.mcuapps.com/products/stm32f4-discovery/README.html>`_
- `OpenOCD 繁體中文簡易操作<http://cms.mcuapps.com/techinfo/toolchains/openocd/>`_