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| <h2 id="project-sim-slinky">Project Sim Slinky</h2> |
| <p>This tutorial shows you how to create, build and run the Slinky application and communicate with newtmgr for a simulated device. This is supported on Mac OS and Linux platforms.</p> |
| <p><br></p> |
| <h3 id="prerequisites">Prerequisites</h3> |
| <p>Meet the prerequisites listed in <a href="/os/tutorials/project-slinky.md">Project Slinky</a>.</p> |
| <h3 id="creating-a-new-project">Creating a new project</h3> |
| <p>Instructions for creating a project are located in the <a href="../get_started/project_create/">Basic Setup</a> section of the <a href="../introduction/">Mynewt Documentation</a></p> |
| <p>We will list only the steps here for brevity. We will name the project <code>slinky</code>.</p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code>$ newt new slinky |
| Downloading project skeleton from apache/incubator-mynewt-blinky... |
| ... |
| Installing skeleton in slink... |
| Project slinky successfully created |
| $ cd slinky |
| $newt install |
| apache-mynewt-core |
| </code></pre></div> |
| |
| <h3 id="setting-up-your-target-build">Setting up your target build</h3> |
| <p>Create a target for <code>slinky</code> using the native bsp. We will list only the steps and suppress the tool output here for brevity.</p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> $ newt target create sim_slinky |
| $ newt target set sim_slinky bsp=@apache-mynewt-core/hw/bsp/native |
| $ newt target set sim_slinky build_profile=debug |
| $ newt target set sim_slinky app=@apache-mynewt-core/apps/slinky |
| </code></pre></div> |
| |
| <h3 id="building-your-target">Building Your target</h3> |
| <p>To build your target, use <code>newt build</code>. When complete, an executable file |
| is created.</p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> $ newt build sim_slinky |
| Building target targets/sim_slinky |
| Compiling repos/apache-mynewt-core/boot/bootutil/src/image_ec256.c |
| Compiling repos/apache-mynewt-core/boot/bootutil/src/image_rsa.c |
| Compiling repos/apache-mynewt-core/boot/bootutil/src/image_ec.c |
| Compiling repos/apache-mynewt-core/boot/split/src/split.c |
| Compiling repos/apache-mynewt-core/boot/bootutil/src/image_validate.c |
| Compiling repos/apache-mynewt-core/boot/bootutil/src/loader.c |
| Compiling repos/apache-mynewt-core/boot/bootutil/src/bootutil_misc.c |
| Compiling repos/apache-mynewt-core/crypto/mbedtls/src/aesni.c |
| Compiling repos/apache-mynewt-core/crypto/mbedtls/src/aes.c |
| Compiling repos/apache-mynewt-core/boot/split/src/split_config.c |
| Compiling repos/apache-mynewt-core/apps/slinky/src/main.c |
| |
| ... |
| |
| Archiving util_crc.a |
| Archiving util_mem.a |
| Linking ~/dev/slinky/bin/targets/sim_slinky/app/apps/slinky/slinky.elf |
| Target successfully built: targets/sim_slinky |
| </code></pre></div> |
| |
| <h3 id="run-the-target">Run the target</h3> |
| <p>Run the executable you have build for the simulated environment. The serial port name on which the simulated target is connected is shown in the output when mynewt slinky starts.</p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> $ ~/dev/slinky/bin/targets/sim_slinky/app/apps/slinky/slinky.elf |
| uart0 at /dev/ttys005 |
| </code></pre></div> |
| |
| <p><br></p> |
| <p>In this example, the slinky app opened up a com port <code>/dev/ttys005</code> for communications with newtmgr. </p> |
| <p><strong>NOTE:</strong> This application will block. You will need to open a new console (or execute this in another console) to continue the tutorial.*</p> |
| <p><br></p> |
| <h3 id="setting-up-a-connection-profile">Setting up a connection profile</h3> |
| <p>You will now set up a connection profile using <code>newtmgr</code> for the serial port connection and start communicating with the simulated remote device.</p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> $ newtmgr conn add sim1 type=serial connstring=/dev/ttys005 |
| Connection profile sim1 successfully added |
| $ newtmgr conn show |
| Connection profiles: |
| sim1: type=serial, connstring='/dev/ttys005' |
| </code></pre></div> |
| |
| <h3 id="executing-newtmgr-commands-with-the-target">Executing newtmgr commands with the target</h3> |
| <p>You can now use connection profile <code>sim1</code> to talk to the running sim_slinky. |
| As an example, we will query the running mynewt OS for the usage of its |
| memory pools. </p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> $ newtmgr -c sim1 mpstats |
| Return Code = 0 |
| name blksz cnt free min |
| msys_1 292 12 10 10 |
| </code></pre></div> |
| |
| <p>As a test command, you can send an arbitrary string to the target and it |
| will echo that string back in a response to newtmgr.</p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> $ newtmgr -c sim1 echo "Hello Mynewt" |
| Hello Mynewt |
| </code></pre></div> |
| |
| <p>In addition to these, you can also examine running tasks, statistics, |
| logs, image status (not on sim), and configuration.</p> |
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