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| <li class="toctree-l2"><a class="reference internal" href="../../canutils/index.html">CAN Utilities</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../crypto/index.html">Cryptography Library Support</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../fsutils/index.html">File System Utilities</a></li> |
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| <li class="toctree-l2"><a class="reference internal" href="../../logging/index.html">Logging Utilities</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../lte/index.html">LTE Libraries and NSH Add-Ons</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../math/index.html">Math Library Support</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../mlearing/index.html">Machine Learning Support</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../netutils/index.html">Network Utilities</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../nsh/index.html">NuttShell (NSH)</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../sdr/index.html">Software Define Radio Libraries</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../system/index.html">System Libraries and NSH Add-Ons</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../../testing/index.html">Testing</a></li> |
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| <li class="toctree-l2"><a class="reference internal" href="../../wireless/index.html">Wireless Libraries and NSH Add-Ons</a></li> |
| <li class="toctree-l2 current"><a class="reference internal" href="../index.html">Examples</a><ul class="current"> |
| <li class="toctree-l3"><a class="reference internal" href="../index.html#selecting-examples">Selecting Examples</a></li> |
| <li class="toctree-l3"><a class="reference internal" href="../index.html#built-in-functions">Built-In Functions</a></li> |
| <li class="toctree-l3 current"><a class="reference internal" href="../index.html#supported-examples">Supported examples</a><ul class="current"> |
| <li class="toctree-l4"><a class="reference internal" href="../abntcodi/index.html"><code class="docutils literal notranslate"><span class="pre">abntcodi</span></code> ABNT CODI example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../adc/index.html"><code class="docutils literal notranslate"><span class="pre">adc</span></code> Read from ADC</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../adjtime/index.html"><code class="docutils literal notranslate"><span class="pre">adjtime</span></code> Ajdtime function example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../adxl372_test/index.html"><code class="docutils literal notranslate"><span class="pre">adxl372_test</span></code> ADXL372 test program</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ajoystick/index.html"><code class="docutils literal notranslate"><span class="pre">ajoystick</span></code> Analog Joystick</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../alarm/index.html"><code class="docutils literal notranslate"><span class="pre">alarm</span></code> RTC Alarm</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../apa102/index.html"><code class="docutils literal notranslate"><span class="pre">apa102</span></code> Rainbow on <code class="docutils literal notranslate"><span class="pre">APA102</span></code> LED Strip</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../apds9960/index.html"><code class="docutils literal notranslate"><span class="pre">apds9960</span></code> APDS-9960 test pplication</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../audio_rttl/index.html"><code class="docutils literal notranslate"><span class="pre">audio_rttl</span></code> Audio tone generator</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../bastest/index.html"><code class="docutils literal notranslate"><span class="pre">bastest</span></code> Bas BASIC Interpreter</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../battery/index.html"><code class="docutils literal notranslate"><span class="pre">battery</span></code> Battery monitor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../bme680/index.html"><code class="docutils literal notranslate"><span class="pre">bme680</span></code> BME680 sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../bmi160/index.html"><code class="docutils literal notranslate"><span class="pre">bmi160</span></code> BMI160 sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../bmp180/index.html"><code class="docutils literal notranslate"><span class="pre">bmp180</span></code> BMP180 Barometer sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../bmp280/index.html"><code class="docutils literal notranslate"><span class="pre">bmp280</span></code> BMP280 Barometer sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../bridge/index.html"><code class="docutils literal notranslate"><span class="pre">bridge</span></code> Network Bridge</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../buttons/index.html"><code class="docutils literal notranslate"><span class="pre">buttons</span></code> Read GPIO Buttons</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../calib_udelay/index.html"><code class="docutils literal notranslate"><span class="pre">calib_udelay</span></code> Calibration tool for udelay</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../camera/index.html"><code class="docutils literal notranslate"><span class="pre">camera</span></code> Camera Snapshot</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../can/index.html"><code class="docutils literal notranslate"><span class="pre">can</span></code> CAN Device Test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../capture/index.html"><code class="docutils literal notranslate"><span class="pre">capture</span></code> PWM Capture example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../cbortest/index.html"><code class="docutils literal notranslate"><span class="pre">cbortest</span></code> TinyCBOR Test Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../cctype/index.html"><code class="docutils literal notranslate"><span class="pre">cctype</span></code> Verify C++ cctype operations</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../chat/index.html"><code class="docutils literal notranslate"><span class="pre">chat</span></code> AT over TTY</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../chrono/index.html"><code class="docutils literal notranslate"><span class="pre">chrono</span></code> Chronometer example to use with STM32LDiscover</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../configdata/index.html"><code class="docutils literal notranslate"><span class="pre">configdata</span></code> Config Data example / unit test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../cordic/index.html"><code class="docutils literal notranslate"><span class="pre">cordic</span></code> CORDIC driver example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../cpuhog/index.html"><code class="docutils literal notranslate"><span class="pre">cpuhog</span></code> Keep CPU Busy</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../cromfs/index.html"><code class="docutils literal notranslate"><span class="pre">cromfs</span></code> CROMFS Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../dac/index.html"><code class="docutils literal notranslate"><span class="pre">dac</span></code> Write to DAC</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../dhcpd/index.html"><code class="docutils literal notranslate"><span class="pre">dhcpd</span></code> DHCP Server</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../discover/index.html"><code class="docutils literal notranslate"><span class="pre">discover</span></code> UDP Discover Daemon</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../djoystick/index.html"><code class="docutils literal notranslate"><span class="pre">djoystick</span></code> Discrete Joystick</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../dronecan/index.html"><code class="docutils literal notranslate"><span class="pre">dronecan</span></code> DroneCAN example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../elf/index.html"><code class="docutils literal notranslate"><span class="pre">elf</span></code> ELF loader</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../embedlog/index.html"><code class="docutils literal notranslate"><span class="pre">embedlog</span></code> embedlog example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../esp32_himem/index.html"><code class="docutils literal notranslate"><span class="pre">esp32_himem</span></code> ESP32 HIMEM Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../etl/index.html"><code class="docutils literal notranslate"><span class="pre">etl</span></code> Embedded Template Library (ETL) C++ example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../fb/index.html"><code class="docutils literal notranslate"><span class="pre">fb</span></code> Framebuffer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../fboverlay/index.html"><code class="docutils literal notranslate"><span class="pre">fboverlay</span></code> Framebuffer overlay test tool</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../flash_test/index.html"><code class="docutils literal notranslate"><span class="pre">flash_test</span></code> SMART Flash test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../flowc/index.html"><code class="docutils literal notranslate"><span class="pre">flowc</span></code> Serial Hardware Flow Control</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../fmsynth/index.html"><code class="docutils literal notranslate"><span class="pre">fmsynth</span></code> FM Synthesizer examples</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../foc/index.html"><code class="docutils literal notranslate"><span class="pre">foc</span></code> FOC motor controller example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ft80x/index.html"><code class="docutils literal notranslate"><span class="pre">ft80x</span></code> FT80x GUI Chip</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ftpc/index.html"><code class="docutils literal notranslate"><span class="pre">ftpc</span></code> FTP Client</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ftpd/index.html"><code class="docutils literal notranslate"><span class="pre">ftpd</span></code> FTP daemon</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../fxos8700cq_test/index.html"><code class="docutils literal notranslate"><span class="pre">fxos8700cq_test</span></code></a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../gpio/index.html"><code class="docutils literal notranslate"><span class="pre">gpio</span></code> GPIO Read and Write</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../gps/index.html"><code class="docutils literal notranslate"><span class="pre">gps</span></code> GPS example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hall/index.html"><code class="docutils literal notranslate"><span class="pre">hall</span></code> Hall effect sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hdc1008_demo/index.html"><code class="docutils literal notranslate"><span class="pre">hdc1008_demo</span></code> HDC1008 driver example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hello/index.html"><code class="docutils literal notranslate"><span class="pre">hello</span></code> Hello World</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hello_nim/index.html"><code class="docutils literal notranslate"><span class="pre">hello_nim</span></code> Hello World in Nim</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hello_rust/index.html"><code class="docutils literal notranslate"><span class="pre">hello_rust</span></code> Hello World in Rust</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hello_wasm/index.html"><code class="docutils literal notranslate"><span class="pre">hello_wasm</span></code> Hello World in WASM</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hello_zig/index.html"><code class="docutils literal notranslate"><span class="pre">hello_zig</span></code> Hello World in Zig</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../helloxx/index.html"><code class="docutils literal notranslate"><span class="pre">helloxx</span></code> Hello World in C++</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hidkbd/index.html"><code class="docutils literal notranslate"><span class="pre">hidkbd</span></code> USB Host HID keyboard</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../hts221_reader/index.html"><code class="docutils literal notranslate"><span class="pre">hts221_reader</span></code> <code class="docutils literal notranslate"><span class="pre">HTS221</span></code> Humidity Sensor</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../i2cchar/index.html"><code class="docutils literal notranslate"><span class="pre">i2cchar</span></code> Transfer Through I2C</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../i2sloop/index.html"><code class="docutils literal notranslate"><span class="pre">i2sloop</span></code> I2S loopback test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../igmp/index.html"><code class="docutils literal notranslate"><span class="pre">igmp</span></code> Trivial IGMP</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ina219/index.html"><code class="docutils literal notranslate"><span class="pre">ina219</span></code> Current/Power Monitor INA219</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ina226/index.html"><code class="docutils literal notranslate"><span class="pre">ina226</span></code> Current/Power Monitor INA219</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ini_dumper/index.html"><code class="docutils literal notranslate"><span class="pre">ini_dumper</span></code> ini dumper example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ipcfg/index.html"><code class="docutils literal notranslate"><span class="pre">ipcfg</span></code> IP Configuration file example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ipforward/index.html"><code class="docutils literal notranslate"><span class="pre">ipforward</span></code> IP Forwarding Using TUN</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../json/index.html"><code class="docutils literal notranslate"><span class="pre">json</span></code> cJSON</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../keyboard/index.html"><code class="docutils literal notranslate"><span class="pre">keyboard</span></code></a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../leds/index.html"><code class="docutils literal notranslate"><span class="pre">leds</span></code> Toggle LEDs</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../libtest/index.html"><code class="docutils literal notranslate"><span class="pre">libtest</span></code> Static Library Test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../lis3dsh_reader/index.html"><code class="docutils literal notranslate"><span class="pre">lis3dsh_reader</span></code> <code class="docutils literal notranslate"><span class="pre">LIS3DSH</span></code> Accelerometer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../lp503x/index.html"><code class="docutils literal notranslate"><span class="pre">lp503x</span></code> LP503X PWM LED example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../lsm303_reader/index.html"><code class="docutils literal notranslate"><span class="pre">lsm303_reader</span></code> <code class="docutils literal notranslate"><span class="pre">LSM303</span></code> Accelerometer/Magnetometer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../lsm6dsl_reader/index.html"><code class="docutils literal notranslate"><span class="pre">lsm6dsl_reader</span></code> <code class="docutils literal notranslate"><span class="pre">LSM6DSL</span></code> Accelerometer/Gyroscope</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ltr308/index.html"><code class="docutils literal notranslate"><span class="pre">ltr308</span></code> LTR308 ambient light sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../lua_module/index.html"><code class="docutils literal notranslate"><span class="pre">lua_module</span></code> Hello World Lua module</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../lvgldemo/index.html"><code class="docutils literal notranslate"><span class="pre">lvgldemo</span></code> LVGL Demo</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../lvglterm/index.html"><code class="docutils literal notranslate"><span class="pre">lvglterm</span></code> LVGL Terminal for NuttShell (NSH)</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../max31855/index.html"><code class="docutils literal notranslate"><span class="pre">max31855</span></code> max31855 example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mcuboot/index.html"><code class="docutils literal notranslate"><span class="pre">mcuboot</span></code> MCUboot examples</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../media/index.html"><code class="docutils literal notranslate"><span class="pre">media</span></code> Media test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mld/index.html"><code class="docutils literal notranslate"><span class="pre">mld</span></code> MLD example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mlx90614/index.html"><code class="docutils literal notranslate"><span class="pre">mlx90614</span></code> MLX90614 Test Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mml_parser/index.html"><code class="docutils literal notranslate"><span class="pre">mml_parser</span></code> MML parser example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../modbus/index.html"><code class="docutils literal notranslate"><span class="pre">modbus</span></code> FreeModbus demo example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../modbusmaster/index.html"><code class="docutils literal notranslate"><span class="pre">modbusmaster</span></code> Modbus Master example</a></li> |
| <li class="toctree-l4 current"><a class="current reference internal" href="#"><code class="docutils literal notranslate"><span class="pre">module</span></code> Loadable Module</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mount/index.html"><code class="docutils literal notranslate"><span class="pre">mount</span></code> Mount Filesystem</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mqttc/index.html"><code class="docutils literal notranslate"><span class="pre">mqttc</span></code> MQTT-C Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mtdpart/index.html"><code class="docutils literal notranslate"><span class="pre">mtdpart</span></code> MTD Partition Test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../mtdrwb/index.html"><code class="docutils literal notranslate"><span class="pre">mtdrwb</span></code> MTD Read-ahead and Write Buffering</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../netlink_route/index.html"><code class="docutils literal notranslate"><span class="pre">netlink_route</span></code> Netlink NETLINK_ROUTE test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../netloop/index.html"><code class="docutils literal notranslate"><span class="pre">netloop</span></code> Network loopback device</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../netpkt/index.html"><code class="docutils literal notranslate"><span class="pre">netpkt</span></code> <code class="docutils literal notranslate"><span class="pre">AF_PACKET</span></code> Raw Sockets</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nettest/index.html"><code class="docutils literal notranslate"><span class="pre">nettest</span></code> Client/Server Over TCP</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nimble/index.html"><code class="docutils literal notranslate"><span class="pre">nimble</span></code> NimBLE example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nng_test/index.html"><code class="docutils literal notranslate"><span class="pre">nng_test</span></code> NNG pubsub program</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../noteprintf/index.html"><code class="docutils literal notranslate"><span class="pre">noteprintf</span></code> “Note printf!” example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nrf24l01_btle/index.html"><code class="docutils literal notranslate"><span class="pre">nrf24l01_btle</span></code> Emulates a nRF8001 temperature beacon with nRF24L01</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nrf24l01_term/index.html"><code class="docutils literal notranslate"><span class="pre">nrf24l01_term</span></code> NRF24L01 Wireless Connection</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../null/index.html"><code class="docutils literal notranslate"><span class="pre">null</span></code> NULL example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nunchuck/index.html"><code class="docutils literal notranslate"><span class="pre">nunchuck</span></code></a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nx/index.html"><code class="docutils literal notranslate"><span class="pre">nx</span></code> NX graphics example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nxdemo/index.html"><code class="docutils literal notranslate"><span class="pre">nxdemo</span></code> NX Demo “Graphic test” example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nxflat/index.html"><code class="docutils literal notranslate"><span class="pre">nxflat</span></code> NXFLAT Binary</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nxhello/index.html"><code class="docutils literal notranslate"><span class="pre">nxhello</span></code> NX graphics “Hello, World!” example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nximage/index.html"><code class="docutils literal notranslate"><span class="pre">nximage</span></code> Display NuttX Logo</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nxlines/index.html"><code class="docutils literal notranslate"><span class="pre">nxlines</span></code> NX Line Drawing</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nxscope/index.html"><code class="docutils literal notranslate"><span class="pre">nxscope</span></code> NxScope library example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nxterm/index.html"><code class="docutils literal notranslate"><span class="pre">nxterm</span></code> Display NuttShell (NSH) as NX Console</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../nxtext/index.html"><code class="docutils literal notranslate"><span class="pre">nxtext</span></code> Display NX Text</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../obd2/index.html"><code class="docutils literal notranslate"><span class="pre">obd2</span></code> OBD-II application example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../oneshot/index.html"><code class="docutils literal notranslate"><span class="pre">oneshot</span></code> Oneshot Timer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../opencyphal/index.html"><code class="docutils literal notranslate"><span class="pre">opencyphal</span></code> OpenCyphal Cyphal/CAN example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pca9635/index.html"><code class="docutils literal notranslate"><span class="pre">pca9635</span></code> <code class="docutils literal notranslate"><span class="pre">PCA9635PW</span></code> LED</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pdcurses/index.html"><code class="docutils literal notranslate"><span class="pre">pdcurses</span></code> pdcurses demos</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pf_ieee802154/index.html"><code class="docutils literal notranslate"><span class="pre">pf_ieee802154</span></code> PF_IEEE802154 example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pipe/index.html"><code class="docutils literal notranslate"><span class="pre">pipe</span></code> Pipe example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../poll/index.html"><code class="docutils literal notranslate"><span class="pre">poll</span></code> Poll example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../popen/index.html"><code class="docutils literal notranslate"><span class="pre">popen</span></code> popen() example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../posix_spawn/index.html"><code class="docutils literal notranslate"><span class="pre">posix_spawn</span></code> posix_spawn Unit Test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../powerled/index.html"><code class="docutils literal notranslate"><span class="pre">powerled</span></code> Powerled driver example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../powermonitor/index.html"><code class="docutils literal notranslate"><span class="pre">powermonitor</span></code> LTC4151 powermonitor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pppd/index.html"><code class="docutils literal notranslate"><span class="pre">pppd</span></code> pppd client example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pty_test/index.html"><code class="docutils literal notranslate"><span class="pre">pty_test</span></code> Pseudo-Terminals</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pwfb/index.html"><code class="docutils literal notranslate"><span class="pre">pwfb</span></code> NX Per-Window Framebuffer Text Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pwlines/index.html"><code class="docutils literal notranslate"><span class="pre">pwlines</span></code> NX Per-Window Framebuffer Graphics Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../pwm/index.html"><code class="docutils literal notranslate"><span class="pre">pwm</span></code> General PWM Example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../qencoder/index.html"><code class="docutils literal notranslate"><span class="pre">qencoder</span></code> Quadrature Encoder</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../random/index.html"><code class="docutils literal notranslate"><span class="pre">random</span></code> Random Numbers</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../relays/index.html"><code class="docutils literal notranslate"><span class="pre">relays</span></code> Relays</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../rfid_readuid/index.html"><code class="docutils literal notranslate"><span class="pre">rfid_readuid</span></code> RFID example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../rgbled/index.html"><code class="docutils literal notranslate"><span class="pre">rgbled</span></code> RGB LED Using PWM</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../romfs/index.html"><code class="docutils literal notranslate"><span class="pre">romfs</span></code> File System</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../rpmsgsocket/index.html"><code class="docutils literal notranslate"><span class="pre">rpmsgsocket</span></code> Rpmsg socket example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../sendmail/index.html"><code class="docutils literal notranslate"><span class="pre">sendmail</span></code> SMTP Client</a></li> |
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| <li class="toctree-l4"><a class="reference internal" href="../serloop/index.html"><code class="docutils literal notranslate"><span class="pre">serloop</span></code> Serial Loopback</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../shm_test/index.html"><code class="docutils literal notranslate"><span class="pre">shm_test</span></code> SHM example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../sht3x/index.html"><code class="docutils literal notranslate"><span class="pre">sht3x</span></code> SHT3x sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../slcd/index.html"><code class="docutils literal notranslate"><span class="pre">slcd</span></code> Alphanumeric Segment LCD</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../smps/index.html"><code class="docutils literal notranslate"><span class="pre">smps</span></code> Switched-Mode Power Supply</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../sotest/index.html"><code class="docutils literal notranslate"><span class="pre">sotest</span></code> Shared Library Module Test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../stat/index.html"><code class="docutils literal notranslate"><span class="pre">stat</span></code> Test of stat(), fstat(), and statfs()</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../sx127x_demo/index.html"><code class="docutils literal notranslate"><span class="pre">sx127x_demo</span></code> SX127X Radio</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../system/index.html"><code class="docutils literal notranslate"><span class="pre">system</span></code> System() example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../tcp_ipc_client/index.html"><code class="docutils literal notranslate"><span class="pre">tcp_ipc_client</span></code> Client for TCP IPC NuttX</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../tcp_ipc_server/index.html"><code class="docutils literal notranslate"><span class="pre">tcp_ipc_server</span></code> Server for TCP IPC NuttX</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../tcpblaster/index.html"><code class="docutils literal notranslate"><span class="pre">tcpblaster</span></code> TCP Performance Test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../tcpecho/index.html"><code class="docutils literal notranslate"><span class="pre">tcpecho</span></code> TCP Echo Server</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../telnetd/index.html"><code class="docutils literal notranslate"><span class="pre">telnetd</span></code> Simple Telnet Shell</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../termios/index.html"><code class="docutils literal notranslate"><span class="pre">termios</span></code> Simple Termios interface test</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../thttpd/index.html"><code class="docutils literal notranslate"><span class="pre">thttpd</span></code> THTTPD server</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../tiff/index.html"><code class="docutils literal notranslate"><span class="pre">tiff</span></code> TIFF file generation example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../timer/index.html"><code class="docutils literal notranslate"><span class="pre">timer</span></code> Timer example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../timer_gpio/index.html"><code class="docutils literal notranslate"><span class="pre">timer_gpio</span></code> Timer GPIO example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../touchscreen/index.html"><code class="docutils literal notranslate"><span class="pre">touchscreen</span></code> Touchscreen Events</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../udgram/index.html"><code class="docutils literal notranslate"><span class="pre">udgram</span></code> Unix domain datagram example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../udp/index.html"><code class="docutils literal notranslate"><span class="pre">udp</span></code> Client/Server Over UDP</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../udpblaster/index.html"><code class="docutils literal notranslate"><span class="pre">udpblaster</span></code> UDP blaster example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../uid/index.html"><code class="docutils literal notranslate"><span class="pre">uid</span></code> UID/GID example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../unionfs/index.html"><code class="docutils literal notranslate"><span class="pre">unionfs</span></code> Union File System</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../usbserial/index.html"><code class="docutils literal notranslate"><span class="pre">usbserial</span></code> USB Serial Hello World</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../userfs/index.html"><code class="docutils literal notranslate"><span class="pre">userfs</span></code> UserFS File System</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../usrsocktest/index.html"><code class="docutils literal notranslate"><span class="pre">usrsocktest</span></code> USRSOCK test example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../ustream/index.html"><code class="docutils literal notranslate"><span class="pre">ustream</span></code> Unix Stream Sockets</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../veml6070/index.html"><code class="docutils literal notranslate"><span class="pre">veml6070</span></code> VEML6070 UltraViolet sensor example</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../watchdog/index.html"><code class="docutils literal notranslate"><span class="pre">watchdog</span></code> Watchdog Timer</a></li> |
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| <li class="toctree-l4"><a class="reference internal" href="../webserver/index.html"><code class="docutils literal notranslate"><span class="pre">webserver</span></code> Simple Webserver</a></li> |
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| <li class="toctree-l4"><a class="reference internal" href="../wgetjson/index.html"><code class="docutils literal notranslate"><span class="pre">wgetjson</span></code> GET JSON Using <code class="docutils literal notranslate"><span class="pre">wget</span></code></a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../wiegand/index.html"><code class="docutils literal notranslate"><span class="pre">wiegand</span></code> Wiegand example</a></li> |
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| <section id="module-loadable-module"> |
| <h1><code class="docutils literal notranslate"><span class="pre">module</span></code> Loadable Module<a class="headerlink" href="#module-loadable-module" title="Permalink to this heading"></a></h1> |
| <p>This example builds a small loadable module test case. This includes a character |
| driver under <code class="docutils literal notranslate"><span class="pre">examples/module/drivers</span></code>. This driver is built using the |
| relocatable ELF format and installed in a ROMFS file system. At run time, the |
| driver module is loaded and exercised. Requires <code class="docutils literal notranslate"><span class="pre">CONFIG_MODULE</span></code>. Other |
| configuration options:</p> |
| <ul class="simple"> |
| <li><p><code class="docutils literal notranslate"><span class="pre">CONFIG_EXAMPLES_ELF_DEVMINOR</span></code> – The minor device number of the ROMFS block |
| driver. For example, the <code class="docutils literal notranslate"><span class="pre">N</span></code> in <code class="docutils literal notranslate"><span class="pre">/dev/ramN</span></code>. Used for registering the RAM |
| block driver that will hold the ROMFS file system containing the ELF |
| executables to be tested. Default: <code class="docutils literal notranslate"><span class="pre">0</span></code>.</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">CONFIG_EXAMPLES_ELF_DEVPATH</span></code> – The path to the ROMFS block driver device. |
| This must match <code class="docutils literal notranslate"><span class="pre">EXAMPLES_ELF_DEVMINOR</span></code>. Used for registering the RAM block |
| driver that will hold the ROMFS file system containing the ELF executables to |
| be tested. Default: <code class="docutils literal notranslate"><span class="pre">/dev/ram0</span></code>.</p></li> |
| </ul> |
| <p><strong>Notes</strong>:</p> |
| <ol class="arabic"> |
| <li><p><code class="docutils literal notranslate"><span class="pre">CFLAGS</span></code> should be provided in <code class="docutils literal notranslate"><span class="pre">CMODULEFLAGS</span></code>. RAM and FLASH memory regions |
| may require long allcs. For ARM, this might be:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>CMODULEFLAGS = $(CFLAGS) -mlong-calls |
| </pre></div> |
| </div> |
| <p>Similarly for C++ flags which must be provided in <code class="docutils literal notranslate"><span class="pre">CXXMODULEFLAGS</span></code>.</p> |
| </li> |
| <li><p>Your top-level <code class="docutils literal notranslate"><span class="pre">nuttx/Make.defs</span></code> file must also include an appropriate |
| definition, LDMODULEFLAGS, to generate a relocatable ELF object. With GNU LD, |
| this should include <code class="docutils literal notranslate"><span class="pre">-r</span></code> and <code class="docutils literal notranslate"><span class="pre">-e</span> <span class="pre"><entry</span> <span class="pre">point></span></code>.:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>LDMODULEFLAGS = -r -e module_initialize |
| </pre></div> |
| </div> |
| <p>If you use GCC to link, you make also need to include <code class="docutils literal notranslate"><span class="pre">-nostdlib</span></code>.</p> |
| </li> |
| <li><p>This example also requires <code class="docutils literal notranslate"><span class="pre">genromfs</span></code>. <code class="docutils literal notranslate"><span class="pre">genromfs</span></code> can be build as part of the |
| nuttx toolchain. Or can built from the <code class="docutils literal notranslate"><span class="pre">genromfs</span></code> sources that can be found |
| in the NuttX tools repository (<code class="docutils literal notranslate"><span class="pre">genromfs-0.5.2.tar.gz</span></code>). In any event, the |
| PATH variable must include the path to the <code class="docutils literal notranslate"><span class="pre">genromfs</span></code> executable.</p></li> |
| <li><p>ELF size: The ELF files in this example are, be default, quite large because |
| they include a lot of build garbage. You can greatly reduce the size of the |
| ELF binaries are using the <code class="docutils literal notranslate"><span class="pre">objcopy</span> <span class="pre">--strip-unneeded</span></code> command to remove |
| un-necessary information from the ELF files.</p></li> |
| <li><p>Simulator. You cannot use this example with the NuttX simulator on Cygwin. |
| That is because the Cygwin GCC does not generate ELF file but rather some |
| Windows-native binary format.</p> |
| <p>If you really want to do this, you can create a NuttX x86 <code class="docutils literal notranslate"><span class="pre">buildroot</span></code> |
| toolchain and use that be build the ELF executables for the ROMFS file |
| system.</p> |
| </li> |
| <li><p>Linker scripts. You might also want to use a linker scripts to combine |
| sections better. An example linker script is at |
| <code class="docutils literal notranslate"><span class="pre">nuttx/libc/modlib/gnu-elf.ld</span></code>. That example might have to be tuned for your |
| particular linker output to position additional sections correctly. The GNU |
| LD <code class="docutils literal notranslate"><span class="pre">LDMODULEFLAGS</span></code> then might be:</p> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>LDMODULEFLAGS = -r -e module_initialize -T$(TOPDIR)/libc/modlib/gnu-elf.ld |
| </pre></div> |
| </div> |
| </li> |
| </ol> |
| </section> |
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