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| <div class="section" id="blinky-your-hello-world-on-olimex"> |
| <h1>Blinky, your “Hello World!”, on Olimex<a class="headerlink" href="#blinky-your-hello-world-on-olimex" title="Permalink to this headline">¶</a></h1> |
| <p>This tutorial shows you how to create, build, and run the Blinky |
| application on an Olimex STM32-E407 board.</p> |
| <div class="contents local topic" id="contents"> |
| <ul class="simple"> |
| <li><p><a class="reference internal" href="#prerequisites" id="id1">Prerequisites</a></p></li> |
| <li><p><a class="reference internal" href="#create-a-project" id="id2">Create a Project</a></p></li> |
| <li><p><a class="reference internal" href="#create-the-targets" id="id3">Create the Targets</a></p></li> |
| <li><p><a class="reference internal" href="#build-the-bootloader" id="id4">Build the Bootloader</a></p></li> |
| <li><p><a class="reference internal" href="#build-the-blinky-application" id="id5">Build the Blinky Application</a></p></li> |
| <li><p><a class="reference internal" href="#sign-and-create-the-blinky-application-image" id="id6">Sign and Create the Blinky Application Image</a></p></li> |
| <li><p><a class="reference internal" href="#connect-to-the-board" id="id7">Connect to the Board</a></p></li> |
| <li><p><a class="reference internal" href="#load-the-bootloader-and-blinky-application" id="id8">Load the Bootloader and Blinky Application</a></p></li> |
| </ul> |
| </div> |
| <div class="section" id="prerequisites"> |
| <h2><a class="toc-backref" href="#id1">Prerequisites</a><a class="headerlink" href="#prerequisites" title="Permalink to this headline">¶</a></h2> |
| <ul class="simple"> |
| <li><p>Meet the prerequisites listed in <a class="reference internal" href="blinky.html"><span class="doc">Project Blinky</span></a>.</p></li> |
| <li><p>Have a STM32-E407 development board from Olimex.</p></li> |
| <li><p>Have a ARM-USB-TINY-H connector with JTAG interface for debugging ARM |
| microcontrollers (comes with the ribbon cable to hook up to the |
| board)</p></li> |
| <li><p>Have a USB A-B type cable to connect the debugger to your computer.</p></li> |
| <li><p>Install the <a class="reference internal" href="../../get_started/native_install/cross_tools.html"><span class="doc">OpenOCD debugger</span></a>.</p></li> |
| </ul> |
| </div> |
| <div class="section" id="create-a-project"> |
| <h2><a class="toc-backref" href="#id2">Create a Project</a><a class="headerlink" href="#create-a-project" title="Permalink to this headline">¶</a></h2> |
| <p>Create a new project if you do not have an existing one. You can skip this step and proceed to <a class="reference internal" href="#create-the-targets">Create the Targets</a> if |
| you already created a project.</p> |
| <p>Run the following commands to create a new project:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>mkdir<span class="w"> </span>~/dev |
| <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>~/dev |
| <span class="gp">$ </span>newt<span class="w"> </span>new<span class="w"> </span>myproj |
| <span class="go">Downloading project skeleton from apache/mynewt-blinky...</span> |
| <span class="go">Installing skeleton in myproj...</span> |
| <span class="go">Project myproj successfully created.</span> |
| |
| <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>myproj |
| |
| <span class="gp">$ </span>newt<span class="w"> </span>upgrade |
| <span class="go">Downloading repository mynewt-core (commit: master) ...</span> |
| <span class="go">apache-mynewt-core successfully upgraded to version 1.7.0</span> |
| <span class="gp">$</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="create-the-targets"> |
| <h2><a class="toc-backref" href="#id3">Create the Targets</a><a class="headerlink" href="#create-the-targets" title="Permalink to this headline">¶</a></h2> |
| <p>Create two targets for the Olimex board - one for the bootloader and one |
| for the Blinky application.</p> |
| <p>Run the following <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">target</span></code> commands, from your project directory, |
| to create a bootloader target. We name the target <code class="docutils literal notranslate"><span class="pre">boot_olimex</span></code>.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span>create<span class="w"> </span>boot_olimex |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>boot_olimex<span class="w"> </span><span class="nv">build_profile</span><span class="o">=</span>optimized |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>boot_olimex<span class="w"> </span><span class="nv">app</span><span class="o">=</span>@mcuboot/boot/mynewt |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>boot_olimex<span class="w"> </span><span class="nv">bsp</span><span class="o">=</span>@apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard |
| </pre></div> |
| </div> |
| <p>Run the following <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">target</span></code> commands to create a target for the |
| Blinky application. We name the target <code class="docutils literal notranslate"><span class="pre">olimex_blinky</span></code>.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span>create<span class="w"> </span>olimex_blinky |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>olimex_blinky<span class="w"> </span><span class="nv">build_profile</span><span class="o">=</span>debug |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>olimex_blinky<span class="w"> </span><span class="nv">bsp</span><span class="o">=</span>@apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>olimex_blinky<span class="w"> </span><span class="nv">app</span><span class="o">=</span>apps/blinky |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="build-the-bootloader"> |
| <h2><a class="toc-backref" href="#id4">Build the Bootloader</a><a class="headerlink" href="#build-the-bootloader" title="Permalink to this headline">¶</a></h2> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">build</span> <span class="pre">boot_olimex</span></code> command to build the bootloader:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>build<span class="w"> </span>boot_olimex |
| <span class="go">Building target targets/boot_olimex</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/image_ec256.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/image_ec.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/image_rsa.c</span> |
| <span class="go">Compiling bin/targets/boot_olimex/generated/src/boot_olimex-sysflash.c</span> |
| |
| <span class="go"> ...</span> |
| |
| <span class="go">Archiving libc_baselibc.a</span> |
| <span class="go">Archiving sys_flash_map.a</span> |
| <span class="go">Archiving sys_mfg.a</span> |
| <span class="go">Archiving sys_sysinit.a</span> |
| <span class="go">Archiving util_mem.a</span> |
| <span class="go">Linking ~/dev/myproj/bin/targets/boot_olimex/app/boot/mynewt/mynewt.elf</span> |
| <span class="go">Target successfully built: targets/boot_olimex</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="build-the-blinky-application"> |
| <h2><a class="toc-backref" href="#id5">Build the Blinky Application</a><a class="headerlink" href="#build-the-blinky-application" title="Permalink to this headline">¶</a></h2> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">build</span> <span class="pre">olimex_blinky</span></code> command to build the blinky application:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>build<span class="w"> </span>olimex_blinky |
| <span class="go">Building target targets/olimex_blinky</span> |
| <span class="go">Assembling repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard/src/arch/cortex_m4/startup_STM32F40x.s</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/drivers/uart/src/uart.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/cmsis-core/src/cmsis_nvic.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard/src/sbrk.c</span> |
| <span class="go">Compiling apps/blinky/src/main.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/drivers/uart/uart_hal/src/uart_hal.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard/src/hal_bsp.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard/src/system_stm32f4xx.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/hal/src/hal_common.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/hal/src/hal_flash.c</span> |
| |
| <span class="go"> ...</span> |
| |
| <span class="go">Archiving sys_mfg.a</span> |
| <span class="go">Archiving sys_sysinit.a</span> |
| <span class="go">Archiving util_mem.a</span> |
| <span class="go">Linking ~/dev/myproj/bin/targets/olimex_blinky/app/apps/blinky/blinky.elf</span> |
| <span class="go">Target successfully built: targets/olimex_blinky</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="sign-and-create-the-blinky-application-image"> |
| <h2><a class="toc-backref" href="#id6">Sign and Create the Blinky Application Image</a><a class="headerlink" href="#sign-and-create-the-blinky-application-image" title="Permalink to this headline">¶</a></h2> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">create-image</span> <span class="pre">olimex_blinky</span> <span class="pre">1.0.0</span></code> command to sign and |
| create an image file for the blinky application. You may assign an |
| arbitrary version (e.g. 1.0.0) number.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>create-image<span class="w"> </span>olimex_blinky<span class="w"> </span><span class="m">1</span>.0.0 |
| <span class="go">App image succesfully generated: ~/dev/myproj/bin/targets/olimex_blinky/app/apps/blinky/blinky.img</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="connect-to-the-board"> |
| <h2><a class="toc-backref" href="#id7">Connect to the Board</a><a class="headerlink" href="#connect-to-the-board" title="Permalink to this headline">¶</a></h2> |
| <p>Configure the board to bootload from flash memory and to use USB-OTG2 |
| for the power source. Refer to the following diagrams to locate the boot |
| jumpers and power input select jumpers on the board.</p> |
| <p><strong>Note:</strong> The labels for the <strong>USB-OTG1</strong> and <strong>USB-OTG2</strong> ports on the |
| diagram are reversed. The port labeled USB-OTG1 on the diagram is the |
| USB-OTG2 port and the port labeled USB-OTG2 on the diagram is the |
| USB-OTG1 port.</p> |
| <div class="figure align-default"> |
| <img alt="../../_images/STM32-E407_top_small.jpg" src="../../_images/STM32-E407_top_small.jpg" /> |
| </div> |
| <div class="figure align-default"> |
| <img alt="../../_images/STM32-E407_bot_small.jpg" src="../../_images/STM32-E407_bot_small.jpg" /> |
| </div> |
| <ul class="simple"> |
| <li><p>Locate the boot jumpers on the lower right corner of the board. |
| <strong>B1_1/B1_0</strong> and <strong>B0_1/B0_0</strong> are PTH jumpers to control the |
| boot mode when a bootloader is present. These two jumpers must be |
| moved together. The board searches for the bootloader in three |
| places: User Flash Memory, System Memory or the Embedded SRAM. For |
| this Blinky project, we configure the board to boot from flash by |
| jumpering <strong>B0_0</strong> and <strong>B1_0</strong>. <strong>Note:</strong> The markings on the |
| board may not always be accurate, and you should always refer to the |
| manual for the correct positioning.</p></li> |
| <li><p>Locate the <strong>Power Input Select</strong> jumpers on the lower left corner of |
| the board. Set the Power Select jumpers to position 5 and 6 to use |
| the USB-OTG2 port for the power source. If you would like to use a |
| different power source, refer to the <a class="reference external" href="https://www.olimex.com/Products/ARM/ST/STM32-E407/resources/STM32-E407.pdf">OLIMEX STM32-E407 user |
| manual</a> |
| for pin specifications.</p></li> |
| <li><p>Connect the USB Micro-A cable to the USB-OTG2 port on the board.</p></li> |
| <li><p>Connect the JTAG connector to the JTAG/SWD interface on the board.</p></li> |
| <li><p>Connect the USB A-B cable to the ARM-USB-TINY-H connector and your |
| computer.</p></li> |
| <li><p>Check that the red PWR LED lights up.</p></li> |
| </ul> |
| </div> |
| <div class="section" id="load-the-bootloader-and-blinky-application"> |
| <h2><a class="toc-backref" href="#id8">Load the Bootloader and Blinky Application</a><a class="headerlink" href="#load-the-bootloader-and-blinky-application" title="Permalink to this headline">¶</a></h2> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">load</span> <span class="pre">boot_olimex</span></code> command to load the bootloader image |
| onto the board:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>load<span class="w"> </span>-v<span class="w"> </span>boot_olimex |
| <span class="go">Loading bootloader</span> |
| <span class="go">Load command: ~/dev/myproj/repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard/olimex_stm32-e407_devboard_download.sh ~/dev/myproj/repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard ~/dev/myproj/bin/targets/boot_olimex/app/boot/mynewt/mynewt</span> |
| <span class="go">Successfully loaded image.</span> |
| </pre></div> |
| </div> |
| <p>Note: If you are using Windows and get a <code class="docutils literal notranslate"><span class="pre">no</span> <span class="pre">device</span> <span class="pre">found</span></code> error, you |
| will need to install the usb driver. Download |
| <a class="reference external" href="http://zadig.akeo.ie">Zadig</a> and run it:</p> |
| <ul class="simple"> |
| <li><p>Select Options > List All Devices.</p></li> |
| <li><p>Select <code class="docutils literal notranslate"><span class="pre">Olimex</span> <span class="pre">OpenOCD</span> <span class="pre">JTAG</span> <span class="pre">ARM-USB-TINY-H</span></code> from the drop down |
| menu.</p></li> |
| <li><p>Select the <code class="docutils literal notranslate"><span class="pre">WinUSB</span></code> driver.</p></li> |
| <li><p>Click Install Driver.</p></li> |
| <li><p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">load</span> <span class="pre">boot_olimex</span></code> command again.</p></li> |
| </ul> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">load</span> <span class="pre">olimex_blinky</span></code> command to load the blinky |
| application image onto the board:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>load<span class="w"> </span>-v<span class="w"> </span>olimex_blinky |
| <span class="go">Loading app image into slot 1</span> |
| <span class="go">Load command: ~/dev/myproj/repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard/olimex_stm32-e407_devboard_download.sh ~/dev/myproj/repos/apache-mynewt-core/hw/bsp/olimex_stm32-e407_devboard ~/dev/myproj/bin/targets/olimex_blinky/app/apps/blinky/blinky</span> |
| <span class="go">Successfully loaded image.</span> |
| </pre></div> |
| </div> |
| <p>The LED should be blinking!</p> |
| <p>Let’s double check that it is indeed booting from flash and making the |
| LED blink from the image in flash. Pull the USB cable off the Olimex |
| JTAG adaptor, severing the debug connection to the JTAG port. Next power |
| off the Olimex board by pulling out the USB cable from the board. Wait |
| for a couple of seconds and plug the USB cable back to the board.</p> |
| <p>The LED light will start blinking again. Success!</p> |
| <p>If you want to download the image to flash and open a gdb session, use |
| <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">debug</span> <span class="pre">blinky</span></code>.</p> |
| <p><strong>Note:</strong> The output of the debug session below is for Mac OS and Linux |
| platforms. On Windows, openocd and gdb are started in separate Windows |
| Command Prompt terminals, and the terminals are automatically closed |
| when you quit gdb. In addition, the output of openocd is logged to the |
| openocd.log file in your project’s base directory instead of the |
| terminal.</p> |
| <p>Type <code class="docutils literal notranslate"><span class="pre">c</span></code> to continue inside the gdb session.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>debug<span class="w"> </span>blinky |
| <span class="go">Debugging with ~/dev/myproj/hw/bsp/olimex_stm32-e407_...</span> |
| <span class="go">Debugging ~/dev/myproj/project/blinky/bin/blinky/blinky.elf</span> |
| <span class="go">GNU gdb (GNU Tools for ARM Embedded Processors) 7.8.0.20150604-cvs</span> |
| <span class="go">Copyright (C) 2014 Free Software Foundation, Inc.</span> |
| <span class="go">License GPLv3+: GNU GPL version 3 <http://gnu.org/licenses/gpl.html></span> |
| <span class="go">...</span> |
| <span class="gp gp-VirtualEnv">(info)</span> |
| <span class="go">...</span> |
| <span class="go">target state: halted</span> |
| <span class="go">target halted due to debug-request, current mode: Thread</span> |
| <span class="go">xPSR: 0x01000000 pc: 0x08000250 msp: 0x10010000</span> |
| <span class="go">Info : accepting 'gdb' connection from 3333</span> |
| <span class="go">Info : device id = 0x10036413</span> |
| <span class="go">Info : flash size = 1024kbytes</span> |
| <span class="go">Reset_Handler () at startup_STM32F40x.s:199</span> |
| <span class="go">199 ldr r1, =__etext</span> |
| <span class="gp gp-VirtualEnv">(gdb)</span> |
| </pre></div> |
| </div> |
| <p>If you want to erase the flash and load the image again you may use the |
| following commands from within gdb. <code class="docutils literal notranslate"><span class="pre">flash</span> <span class="pre">erase_sector</span> <span class="pre">0</span> <span class="pre">0</span> <span class="pre">x</span></code> tells |
| it to erase sectors 0 through x. When you ask it to display (in hex |
| notation) the contents of the sector starting at location ‘lma,’ you |
| should see all f’s. The memory location 0x8000000 is the start or origin |
| of the flash memory contents and is specified in the |
| olimex_stm32-e407_devboard.ld linker script. The flash memory |
| locations is specific to the processor.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp gp-VirtualEnv">(gdb)</span> <span class="go">monitor flash erase_sector 0 0 4</span> |
| <span class="go">erased sectors 0 through 4 on flash bank 0 in 2.296712s</span> |
| <span class="gp gp-VirtualEnv">(gdb)</span> <span class="go">monitor mdw 0x08000000 16</span> |
| <span class="go">0x08000000: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff</span> |
| <span class="go">(0x08000020: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff</span> |
| <span class="go">(0x08000000: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff</span> |
| <span class="go">(0x08000020: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff</span> |
| <span class="gp gp-VirtualEnv">(gdb)</span> <span class="go">monitor flash info 0</span> |
| </pre></div> |
| </div> |
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