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   <section id="esp32-c6-devkitc-1">
 <h1>ESP32-C6-DevKitC-1<a class="headerlink" href="#esp32-c6-devkitc-1" title="Permalink to this heading"></a></h1>
 <p>ESP32-C6-DevKitC-1 is an entry-level development board based on ESP32-C6-WROOM-1(U),
 a general-purpose module with a 8 MB SPI flash. This board integrates complete Wi-Fi,
 Bluetooth LE, Zigbee, and Thread functions. You can find the board schematic
 <a class="reference external" href="https://espressif-docs.readthedocs-hosted.com/projects/esp-dev-kits/en/latest/_static/esp32-c6-devkitc-1/schematics/esp32-c6-devkitc-1-schematics_v1.2.pdf">here</a>.</p>
 <p>Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing.
 Developers can either connect peripherals with jumper wires or mount ESP32-C6-DevKitC-1 on
 a breadboard.</p>
 <figure class="align-center align-default" id="id1">
 <img alt="ESP32-C6-DevKitC-1 Board Layout" src="../../../../../_images/esp32-c6-devkitc-1-isometric_v1.2.png" />
 <figcaption>
 <p><span class="caption-text">ESP32-C6-DevKitC-1 Board Layout</span><a class="headerlink" href="#id1" title="Permalink to this image"></a></p>
 </figcaption>
 </figure>
 <p>The block diagram below presents main components of the ESP32-C6-DevKitC-1.</p>
 <figure class="align-center align-default" id="id2">
 <img alt="ESP32-C6-DevKitC-1 Electrical Block Diagram" src="../../../../../_images/esp32-c6-devkitc-1-v1.2-block-diagram.png" />
 <figcaption>
 <p><span class="caption-text">ESP32-C6-DevKitC-1 Electrical Block Diagram</span><a class="headerlink" href="#id2" title="Permalink to this image"></a></p>
 </figcaption>
 </figure>
 <section id="hardware-components">
 <h2>Hardware Components<a class="headerlink" href="#hardware-components" title="Permalink to this heading"></a></h2>
 <figure class="align-center align-default" id="id3">
 <img alt="ESP32-C6-DevKitC-1 Hardware Components" src="../../../../../_images/esp32-c6-devkitc-1-v1.2-annotated-photo.png" />
 <figcaption>
 <p><span class="caption-text">ESP32-C6-DevKitC-1 Hardware Components</span><a class="headerlink" href="#id3" title="Permalink to this image"></a></p>
 </figcaption>
 </figure>
 <section id="buttons-and-leds">
 <h3>Buttons and LEDs<a class="headerlink" href="#buttons-and-leds" title="Permalink to this heading"></a></h3>
 </section>
 </section>
 <section id="board-buttons">
 <h2>Board Buttons<a class="headerlink" href="#board-buttons" title="Permalink to this heading"></a></h2>
 <p>There are two buttons labeled Boot and RST. The RST button is not available
 to software. It pulls the chip enable line that doubles as a reset line.</p>
 <p>The BOOT button is connected to IO9. On reset it is used as a strapping
 pin to determine whether the chip boots normally or into the serial
 bootloader. After reset, however, the BOOT button can be used for software
 input.</p>
 </section>
 <section id="board-leds">
 <h2>Board LEDs<a class="headerlink" href="#board-leds" title="Permalink to this heading"></a></h2>
 <p>There is one on-board LED that indicates the presence of power.
 Another WS2812 LED is connected to GPIO8 and is available for software.</p>
 <section id="current-measurement">
 <h3>Current Measurement<a class="headerlink" href="#current-measurement" title="Permalink to this heading"></a></h3>
 <p>The J5 headers on the ESP32-C6-DevKitC-1 can be used for measuring the current
 drawn by the ESP32-C6-WROOM-1(U) module:</p>
 <blockquote>
 <div><ul class="simple">
 <li><p>Remove the jumper: Power supply between the module and peripherals on the
 board is cut off. To measure the module’s current, connect the board with an
 ammeter via J5 headers;</p></li>
 <li><p>Apply the jumper (factory default): Restore the board’s normal functionality.</p></li>
 </ul>
 </div></blockquote>
 <div class="admonition note">
 <p class="admonition-title">Note</p>
 <p>When using 3V3 and GND pin headers to power the board, please remove the J5 jumper,
 and connect an ammeter in series to the external circuit to measure the module’s current.</p>
 </div>
 </section>
 <section id="pin-mapping">
 <h3>Pin Mapping<a class="headerlink" href="#pin-mapping" title="Permalink to this heading"></a></h3>
 <figure class="align-center align-default" id="id4">
 <img alt="ESP32-C6-DevKitC pin layout" src="../../../../../_images/esp32-c6-devkitc-1-pin-layout.png" />
 <figcaption>
 <p><span class="caption-text">ESP32-C6-DevKitC-1 Pin Layout</span><a class="headerlink" href="#id4" title="Permalink to this image"></a></p>
 </figcaption>
 </figure>
 </section>
 <section id="configurations">
 <h3>Configurations<a class="headerlink" href="#configurations" title="Permalink to this heading"></a></h3>
 <p>All of the configurations presented below can be tested by running the following commands:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ ./tools/configure.sh esp32c6-devkitc:&lt;config_name&gt;
 $ make flash ESPTOOL_PORT=/dev/ttyUSB0 -j
 </pre></div>
 </div>
 <p>Where &lt;config_name&gt; is the name of board configuration you want to use, i.e.: nsh, buttons, wifi…
 Then use a serial console terminal like <code class="docutils literal notranslate"><span class="pre">picocom</span></code> configured to 115200 8N1.</p>
 </section>
 </section>
 <section id="coremark">
 <h2>coremark<a class="headerlink" href="#coremark" title="Permalink to this heading"></a></h2>
 <p>This configuration sets the CoreMark benchmark up for running on the maximum
 number of cores for this system. It also enables some optimization flags and
 disables the NuttShell to get the best possible score.</p>
 <div class="admonition note">
 <p class="admonition-title">Note</p>
 <p>As the NSH is disabled, the application will start as soon as the
 system is turned on.</p>
 </div>
 </section>
 <section id="gpio">
 <h2>gpio<a class="headerlink" href="#gpio" title="Permalink to this heading"></a></h2>
 <p>This is a test for the GPIO driver. It uses GPIO1 and GPIO2 as outputs and
 GPIO9 as an interrupt pin.</p>
 <p>At the nsh, we can turn the outputs on and off with the following:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; gpio -o 1 /dev/gpio0
 nsh&gt; gpio -o 1 /dev/gpio1

 nsh&gt; gpio -o 0 /dev/gpio0
 nsh&gt; gpio -o 0 /dev/gpio1
 </pre></div>
 </div>
 <p>We can use the interrupt pin to send a signal when the interrupt fires:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; gpio -w 14 /dev/gpio2
 </pre></div>
 </div>
 <p>The pin is configured as a rising edge interrupt, so after issuing the
 above command, connect it to 3.3V.</p>
 </section>
 <section id="nsh">
 <h2>nsh<a class="headerlink" href="#nsh" title="Permalink to this heading"></a></h2>
 <p>Basic configuration to run the NuttShell (nsh).</p>
 </section>
 <section id="ostest">
 <h2>ostest<a class="headerlink" href="#ostest" title="Permalink to this heading"></a></h2>
 <p>This is the NuttX test at <code class="docutils literal notranslate"><span class="pre">apps/testing/ostest</span></code> that is run against all new
 architecture ports to assure a correct implementation of the OS.</p>
 </section>
 <section id="pwm">
 <h2>pwm<a class="headerlink" href="#pwm" title="Permalink to this heading"></a></h2>
 <p>This configuration demonstrates the use of PWM through a LED connected to GPIO8.
 To test it, just execute the <code class="docutils literal notranslate"><span class="pre">pwm</span></code> application:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; pwm
 pwm_main: starting output with frequency: 10000 duty: 00008000
 pwm_main: stopping output
 </pre></div>
 </div>
 </section>
 <section id="rmt">
 <h2>rmt<a class="headerlink" href="#rmt" title="Permalink to this heading"></a></h2>
 <p>This configuration configures the transmitter and the receiver of the
 Remote Control Transceiver (RMT) peripheral on the ESP32-C6 using GPIOs 8
 and 2, respectively. The RMT peripheral is better explained
 <a class="reference external" href="https://docs.espressif.com/projects/esp-idf/en/latest/esp32c6/api-reference/peripherals/rmt.html">here</a>,
 in the ESP-IDF documentation. The minimal data unit in the frame is called the
 RMT symbol, which is represented by <code class="docutils literal notranslate"><span class="pre">rmt_item32_t</span></code> in the driver:</p>
 <figure class="align-center">
 <img alt="../../../../../_images/rmt_symbol1.png" src="../../../../../_images/rmt_symbol1.png" />
 </figure>
 <p>The example <code class="docutils literal notranslate"><span class="pre">rmtchar</span></code> can be used to test the RMT peripheral. Connecting
 these pins externally to each other will make the transmitter send RMT items
 and demonstrates the usage of the RMT peripheral:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; rmtchar
 </pre></div>
 </div>
 <p><strong>WS2812 addressable RGB LEDs</strong></p>
 <p>This same configuration enables the usage of the RMT peripheral and the example
 <code class="docutils literal notranslate"><span class="pre">ws2812</span></code> to drive addressable RGB LEDs:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; ws2812
 </pre></div>
 </div>
 <p>Please note that this board contains an on-board WS2812 LED connected to GPIO8
 and, by default, this config configures the RMT transmitter in the same pin.</p>
 </section>
 <section id="rtc">
 <h2>rtc<a class="headerlink" href="#rtc" title="Permalink to this heading"></a></h2>
 <p>This configuration demonstrates the use of the RTC driver through alarms.
 You can set an alarm, check its progress and receive a notification after it expires:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; alarm 10
 alarm_daemon started
 alarm_daemon: Running
 Opening /dev/rtc0
 Alarm 0 set in 10 seconds
 nsh&gt; alarm -r
 Opening /dev/rtc0
 Alarm 0 is active with 10 seconds to expiration
 nsh&gt; alarm_daemon: alarm 0 received
 </pre></div>
 </div>
 </section>
 <section id="spiflash">
 <h2>spiflash<a class="headerlink" href="#spiflash" title="Permalink to this heading"></a></h2>
 <p>This config tests the external SPI that comes with the ESP32-C6 module connected
 through SPI1.</p>
 <p>By default a SmartFS file system is selected.
 Once booted you can use the following commands to mount the file system:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; mksmartfs /dev/smart0
 nsh&gt; mount -t smartfs /dev/smart0 /mnt
 </pre></div>
 </div>
 </section>
 <section id="timer">
 <h2>timer<a class="headerlink" href="#timer" title="Permalink to this heading"></a></h2>
 <p>This config test the general use purpose timers. It includes the 4 timers,
 adds driver support, registers the timers as devices and includes the timer
 example.</p>
 <p>To test it, just run the following:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; timer -d /dev/timerx
 </pre></div>
 </div>
 <p>Where x in the timer instance.</p>
 </section>
 <section id="usbconsole">
 <h2>usbconsole<a class="headerlink" href="#usbconsole" title="Permalink to this heading"></a></h2>
 <p>This configuration tests the built-in USB-to-serial converter found in ESP32-C6.
 <code class="docutils literal notranslate"><span class="pre">esptool</span></code> can be used to check the version of the chip and if this feature is
 supported.  Running <code class="docutils literal notranslate"><span class="pre">esptool.py</span> <span class="pre">-p</span> <span class="pre">&lt;port&gt;</span> <span class="pre">chip_id</span></code> should have <code class="docutils literal notranslate"><span class="pre">Chip</span> <span class="pre">is</span>
 <span class="pre">ESP32-C6</span></code> in its output.
 When connecting the board a new device should appear, a <code class="docutils literal notranslate"><span class="pre">/dev/ttyACMX</span></code> on Linux
 or a <code class="docutils literal notranslate"><span class="pre">/dev/cu.usbmodemXXX</span></code> om macOS.
 This can be used to flash and monitor the device with the usual commands:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>make download ESPTOOL_PORT=/dev/ttyACM0
 minicom -D /dev/ttyACM0
 </pre></div>
 </div>
 </section>
 <section id="watchdog">
 <h2>watchdog<a class="headerlink" href="#watchdog" title="Permalink to this heading"></a></h2>
 <p>This configuration tests the watchdog timers. It includes the 1 MWDTS,
 adds driver support, registers the WDTs as devices and includes the watchdog
 example application.</p>
 <p>To test it, just run the following command:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>nsh&gt; wdog -i /dev/watchdogX
 </pre></div>
 </div>
 <p>Where X is the watchdog instance.</p>
 </section>
 </section>


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