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[incubator-nuttx-website] branch asf-site updated: Publishing web:
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f467a741fb0363950f5f851539608b0757f2c793
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new 83e2416 Publishing web: 706feb7a8f09ba9c0ea4111239db9d4c65cf9a00 docs: f467a741fb0363950f5f851539608b0757f2c793
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commit 83e2416ffd6f9a4a9e8bda874017b3ccad67d640
Author: Ouss4 <ab...@gmail.com>
AuthorDate: Wed Apr 14 00:13:52 2021 +0000
Publishing web: 706feb7a8f09ba9c0ea4111239db9d4c65cf9a00 docs: f467a741fb0363950f5f851539608b0757f2c793
---
content/docs/10.0.0/index.html | 2 +-
content/docs/10.0.1/index.html | 2 +-
.../arm/imxrt/boards/teensy-4.x/index.rst.txt | 147 ++++++
.../_sources/platforms/arm/imxrt/index.rst.txt | 191 ++++++++
content/docs/latest/index.html | 2 +-
content/docs/latest/objects.inv | Bin 30780 -> 31218 bytes
.../arm/imxrt/boards/teensy-4.x/index.html | 445 +++++++++++++++++
content/docs/latest/platforms/arm/imxrt/index.html | 542 +++++++++++++++++++++
content/docs/latest/platforms/arm/index.html | 6 +-
.../arm/nrf52/boards/nrf52832-mdk/index.html | 1 +
.../arm/nrf52/boards/nrf52832-sparkfun/index.html | 1 +
content/docs/latest/platforms/arm/nrf52/index.html | 5 +-
content/docs/latest/platforms/index.html | 4 +
content/docs/latest/reference/user/07_signals.html | 4 +-
content/docs/latest/reference/user/structures.html | 2 +-
content/docs/latest/searchindex.js | 2 +-
content/feed.xml | 4 +-
17 files changed, 1347 insertions(+), 13 deletions(-)
diff --git a/content/docs/10.0.0/index.html b/content/docs/10.0.0/index.html
index 2b611bb..20b9db7 100644
--- a/content/docs/10.0.0/index.html
+++ b/content/docs/10.0.0/index.html
@@ -207,7 +207,7 @@ by following these <a class="reference internal" href="contributing/documentatio
<div class="section" id="nuttx-documentation">
<h1>NuttX Documentation<a class="headerlink" href="#nuttx-documentation" title="Permalink to this headline">¶</a></h1>
<p>NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 32-bit microcontroller environments, the primary governing standards in NuttX are Posix and ANSI standards. Additional standard APIs from Unix and other common RTOS’s (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).</p>
-<p>Last Updated: 13 April 21 at 00:12</p>
+<p>Last Updated: 14 April 21 at 00:10</p>
<div class="toctree-wrapper compound">
<p class="caption"><span class="caption-text">Table of Contents</span></p>
<ul class="current">
diff --git a/content/docs/10.0.1/index.html b/content/docs/10.0.1/index.html
index e94c3a9..0da34d8 100644
--- a/content/docs/10.0.1/index.html
+++ b/content/docs/10.0.1/index.html
@@ -211,7 +211,7 @@ by following these <a class="reference internal" href="contributing/documentatio
<div class="section" id="nuttx-documentation">
<h1>NuttX Documentation<a class="headerlink" href="#nuttx-documentation" title="Permalink to this headline">¶</a></h1>
<p>NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 32-bit microcontroller environments, the primary governing standards in NuttX are Posix and ANSI standards. Additional standard APIs from Unix and other common RTOS’s (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).</p>
-<p>Last Updated: 13 April 21 at 00:13</p>
+<p>Last Updated: 14 April 21 at 00:10</p>
<div class="toctree-wrapper compound">
<p class="caption"><span class="caption-text">Table of Contents</span></p>
<ul class="current">
diff --git a/content/docs/latest/_sources/platforms/arm/imxrt/boards/teensy-4.x/index.rst.txt b/content/docs/latest/_sources/platforms/arm/imxrt/boards/teensy-4.x/index.rst.txt
new file mode 100644
index 0000000..5745d30
--- /dev/null
+++ b/content/docs/latest/_sources/platforms/arm/imxrt/boards/teensy-4.x/index.rst.txt
@@ -0,0 +1,147 @@
+==========
+Teensy-4.x
+==========
+
+The `Teensy 4.0 <https://www.pjrc.com/store/teensy40.html>`_ and `Teensy 4.1 <https://www.pjrc.com/store/teensy41.html>`_
+are development boards from PJRC. Both boards use i.MX RT1060 MCU, feature several I/Os pins and on-board LED.
+
+Features
+========
+
+- Processor
+ - MIMXRT1062DVL6A processor
+- Memory
+ - 1 MB RAM memory
+ - 2 MB Flash (Teensy 4.0)
+ - 8 MB Flash (Teensy 4.1)
+ - 1 SDIO (4 bit) native SD
+- Connectivity
+ - Micro USB host
+ - CAN transceivers
+ - UART, SPI, I2C
+ - PWM output pins
+ - 10/100 Mb Ethernet (Teensy 4.1 only)
+ - Digital audio in/out
+
+LEDs
+====
+
+There are two LED status indicators located on the Teensy-4.x board.
+The functions of these LEDs include:
+
+- RED LED (loading status)
+ - dim: ready
+ - bright: writing
+ - blink: no USB
+- USER LED (D3)
+
+Only a single LED, D3, is under software control.
+
+This LED is not used by the board port unless CONFIG_ARCH_LEDS is
+defined. In that case, the usage by the board port is defined in
+include/board.h and src/imxrt_autoleds.c. The LED is used to encode
+OS-related events as follows:
+
+================ ======================= =====
+SYMBOL Meaning LED
+================ ======================= =====
+LED_STARTED NuttX has been started OFF
+LED_HEAPALLOCATE Heap has been allocated OFF
+LED_IRQSENABLED Interrupts enabled OFF
+LED_STACKCREATED Idle stack created ON
+LED_INIRQ In an interrupt N/C
+LED_SIGNAL In a signal handler N/C
+LED_ASSERTION An assertion failed N/C
+LED_PANIC The system has crashed FLASH
+================ ======================= =====
+
+Thus if the LED is statically on, NuttX has successfully booted and is,
+apparently, running normally. If the LED is flashing at approximately
+2Hz, then a fatal error has been detected and the system has halted.
+
+Configurations
+==============
+
+nsh-4.0
+-------
+
+Configures the NuttShell (nsh) located at examples/nsh for Teensy 4.0.
+This NSH configuration is focused on low level, command-line driver testing.
+Built-in applications are supported, but none are enabled. NutShells then
+runs on USB console.
+
+nsh-4.1
+-------
+
+Configures the NuttShell (nsh) located at examples/nsh for Teensy 4.1.
+This NSH configuration is focused on low level, command-line driver testing.
+Built-in applications are supported, but none are enabled. NutShells then
+runs USB console.
+
+can-4.1
+-------
+
+This is an nsh configuration (see above) for Teensy-4.x with added support of
+CAN driver. All FlexCANs (CAN1, CAN2, CAN3) are chosen as default. FlexCAN3
+is FD capable. Please note that device driver name if counted from zero.
+That means for CAN1 -> can0, CAN2 -> can1 and CAN3 -> can2
+
+Bitrate and sample point can be also changed at System type peripheral selection,
+basic values are 1 MHz for bitrate and 0.80 for sample point. The FlexCAN driver
+for imxrt runs at 80 MHz clock frequency.
+
+The configuration also includes CAN utilities as candump and cansend.
+
+This configuration can be easily changed to work with Teensy 4.0 by
+selecting ``CONFIG_TEENSY_40=y``.
+
+This configuration runs over LPUART1 (pins 24 and 25 on Teensy). Communication
+over USB console can be turn on, but it couses problems with FlexCAN.
+
+netnsh-4.1
+----------
+
+This configuration is similar to the nsh configuration except that is
+has networking enabled, both IPv4 and IPv6. This NSH configuration is
+focused on network-related testing.
+
+This configuration cannot be changed to Teensy 4.0 as this board does
+not have Ethernet capability.
+
+sd-4.1
+------
+
+This is an nsh configuration (see above) for Teensy-4.x with added support of
+connecting micro SD card.
+
+You can mount micro SD card by:
+
+.. code-block:: console
+
+ $ mount -t vfat /dev/mmcsd0 /mnt
+
+This configuration cannot be changed to Teensy 4.0 as this board does
+not have micro SD card slot.
+
+lcd-4.1
+-------
+
+This is an nsh configuration (see above) for Teensy-4.x with added support of
+connecting LCD TFT display with ST7789 controller. You can run framebuffer demo
+by starting "fb" in console. The LCD display is connected via SPI4.
+
+This configuration can be easily changed to work with Teensy 4.0 by
+selecting ``CONFIG_TEENSY_40=y``.
+
+
+Flash
+=====
+
+Teensy 4.x boards does not have debugger therefore external firmware has to be used to load NuttX.
+`Teensy Loader <https://www.pjrc.com/teensy/loader_cli.html>`_ can be installed and then NuttX can be loaded by:
+
+.. code-block:: console
+
+ $ teensy_loader_cli --mcu=TEENSY41 -v -w nuttx.hex
+
+For Teensy 4.0 board, switch ``--mcu=TEENSY41`` to ``--mcu=TEENSY40``.
diff --git a/content/docs/latest/_sources/platforms/arm/imxrt/index.rst.txt b/content/docs/latest/_sources/platforms/arm/imxrt/index.rst.txt
new file mode 100644
index 0000000..ab39387
--- /dev/null
+++ b/content/docs/latest/_sources/platforms/arm/imxrt/index.rst.txt
@@ -0,0 +1,191 @@
+=======
+i.MX RT
+=======
+
+The i.MX RT series of chips from NXP Semiconductors is based around an ARM Cortex-M7 core running
+at 500 MHz, 600 MHz or 1 GHz based on particular MCUs
+
+Suported MCUs
+=============
+
+The following list includes MCUs from i.MX RT series and indicates whether they are supported in NuttX
+
+====== ======= ============== =================
+MCU Support Core Frequency
+====== ======= ============== =================
+RT500 No Cortex-M33 200 MHz
+RT600 No Cortex-M33 300 MHz
+RT1010 No Cortex-M7 500 MHz
+RT1015 No Cortex-M7 500 MHz
+RT1020 Yes Cortex-M7 500 MHz
+RT1024 No Cortex-M7 500 MHz
+RT1050 Yes Cortex-M7 600 MHz
+RT1060 Yes Cortex-M7 600 MHz
+RT1064 Yes Cortex-M7 600 MHz
+RT1170 No Cortex-M7 + M4 1 GHz + 400 MHz
+====== ======= ============== =================
+
+Data and Instruction Cache
+==========================
+
+MCUs i.MX RT1010 and higher have separated caches for instructions and data. Data cache is initially
+set as write-through but can be changed to write-back via Kconfig. While write-back gives better
+performance than write-through, it is not supported for all peripherals in NuttX yet. Write-back data
+cache can not be selected while running Ethernet or serial port over USB.
+
+Peripheral Support
+==================
+
+The following list indicates peripherals supported in NuttX:
+
+========== =======
+Peripheral Support
+========== =======
+ACMP No
+ADC Yes
+CAN Yes
+CSI No
+DAC No
+eLCDIF Yes
+ENC Yes
+ENET Yes
+FlexIO No
+GPIO Yes
+I2S Yes
+PWM No
+SAI No
+SPDIF No
+SPI Yes
+UART Yes
+USB Yes
+========== =======
+
+ACMP
+----
+
+The circout for comparing two analog input voltages designed to operate across the full
+range of supply voltage (rail-to-rail operation).
+
+ADC
+---
+
+ADC driver with the successive approximation analog/digital convertor. The lower-half of
+this driver is initialize by calling :c:func:`imxrt_adcinitialize`.
+
+CAN
+---
+
+FlexCAN driver is supported in MCUs i.MX RT1020 and higher. i.MX RT106x have both classical
+CAN and also one CAN FD while i.MX RT1170 have 3 CAN FD peripherals. FlexCAN driver in imxrt
+works beyond SocketCAN driver layout. The lower-half of this driver is initialize by
+calling :c:func:`imxrt_cannitialize()`.
+
+There is an booting option that automatically provides initialization of network interface
+in the early stages of booting and therefore calling :c:func:`imxrt_cannitialize()` via
+board specific logic is not neccessary. This however works only when there is only one
+interface in the chip. For running more interfaces (like CAN and Ethernet), network late
+initialization must be turn on by CONFIG_NETDEV_LATEINIT and board specific logic must call
+lower-half part of drivers.
+
+CSI
+---
+
+CMOS Sensor interface which enables the chip to connect directly to external CMOS image sensors.
+
+DAC
+---
+
+Digital/analog convertor for external signal is only supported in i.MX RT1170 MCU. It is 12 bit
+lower power, general purpose DAC.
+
+eLCDIF
+------
+
+The enhanced Liquid Crystal Display interface (LCDIF) is a general purpose display controller.
+
+ENC
+---
+
+The enhanced quadrature encoder/decoder module supported in i.MX RT1015 and higher. The lower-half
+of this driver is initialize by calling :c:func:`imxrt_qeinitialize`.
+
+ENET
+----
+
+Ethernet driver supported in i.MX RT1020 and higher. The lower-half of this driver is initialize
+by calling :c:func:`imxrt_netnitialize`.
+
+There is an booting option that automatically provides initialization of network interface
+in the early stages of booting and therefore calling :c:func:`imxrt_cannitialize()` via
+board specific logic is not neccessary. This however works only when there is only one
+interface in the chip. For running more interfaces (like CAN and Ethernet), network late
+initialization must be turn on by CONFIG_NETDEV_LATEINIT and board specific logic must call
+lower-half part of drivers.
+
+FlexIO
+------
+
+A configurable module providing a range of functionality like emulation of a variety of
+serial/parallel communication protocols, flexible 16-bit timers or programmable logic blocks.
+This module is supported in i.MX RT1010 and higher.
+
+GPIO
+----
+
+Pins can be configured using :c:func:`imxrt_config_gpio` function. Writing to pins is
+done by :c:func:`imxrt_gpio_write` function and reading is done by :c:func:`imxrt_gpio_read`.
+
+MCUs i.MX RT1060 and higher includes both standard speed GPIOs (1-5) and high speed
+GPIOS (6-9). Regular and high speed GPIO share the same pins (GPIO1 is with GPIO6 etc),
+therefore IOMUXC_GPR_GPR26-29 registers are used to determine what modue is used for the
+GPIO pins.
+
+
+I2C
+---
+
+Inter-Integrated Circout module supporting an interface to an I2C bus as master and/or
+as a slave. The lower-half of this driver is initialize by calling :c:func:`imxrt_i2cbus_initialize`.
+
+PWM
+---
+
+Pulse width modulator supported in i.MX RT1010 and higher.
+
+SAI
+---
+
+Synchronous audio interface provided by I2C module. Supported in i.MX RT1015 and higher.
+
+SPDIF
+-----
+
+Sony/Philips digital interface audio block. It is a stereo transciever that allows the
+processor to receive and transmit digital audio. Supported in i.MX RT1010 and higher.
+
+SPI
+---
+
+Serial Peripheral interface module that supports an interface to an SPI bus as a master
+and/or a slave. The lower-half of this driver is initialize by calling :c:func:`imxrt_lpsibus_initialize`.
+
+UART
+----
+
+Universal Asynchronous Receiver/Transmitter module. UART is initialized automatically during
+MCU boot.
+
+USB
+---
+
+Console communication over USB is supported via CDC-ACM. Only USB Device is currently supported
+for i.MX RT in NuttX
+
+Supported Boards
+================
+
+.. toctree::
+ :glob:
+ :maxdepth: 1
+
+ boards/*/*
diff --git a/content/docs/latest/index.html b/content/docs/latest/index.html
index 9e9bc72..419233c 100644
--- a/content/docs/latest/index.html
+++ b/content/docs/latest/index.html
@@ -211,7 +211,7 @@ by following these <a class="reference internal" href="contributing/documentatio
<div class="section" id="nuttx-documentation">
<h1>NuttX Documentation<a class="headerlink" href="#nuttx-documentation" title="Permalink to this headline">¶</a></h1>
<p>NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOS’s (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).</p>
-<p>Last Updated: 13 April 21 at 00:13</p>
+<p>Last Updated: 14 April 21 at 00:11</p>
<div class="toctree-wrapper compound">
<p class="caption"><span class="caption-text">Table of Contents</span></p>
<ul class="current">
diff --git a/content/docs/latest/objects.inv b/content/docs/latest/objects.inv
index 5781dea..f2671be 100644
Binary files a/content/docs/latest/objects.inv and b/content/docs/latest/objects.inv differ
diff --git a/content/docs/latest/platforms/arm/imxrt/boards/teensy-4.x/index.html b/content/docs/latest/platforms/arm/imxrt/boards/teensy-4.x/index.html
new file mode 100644
index 0000000..4c892dc
--- /dev/null
+++ b/content/docs/latest/platforms/arm/imxrt/boards/teensy-4.x/index.html
@@ -0,0 +1,445 @@
+<!--
+ Documentation/_templates/layout.html
+
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
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+
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+<li class="toctree-l1"><a class="reference internal" href="../../../../../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="../../../../index.html">Supported Platforms</a><ul class="current">
+<li class="toctree-l2 current"><a class="reference internal" href="../../../index.html">ARM</a><ul class="current">
+<li class="toctree-l3 current"><a class="reference internal" href="../../index.html">i.MX RT</a><ul class="current">
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+<li class="toctree-l4 current"><a class="reference internal" href="../../index.html#supported-boards">Supported Boards</a><ul class="current">
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+
+ <div class="section" id="teensy-4-x">
+<h1>Teensy-4.x<a class="headerlink" href="#teensy-4-x" title="Permalink to this headline">¶</a></h1>
+<p>The <a class="reference external" href="https://www.pjrc.com/store/teensy40.html">Teensy 4.0</a> and <a class="reference external" href="https://www.pjrc.com/store/teensy41.html">Teensy 4.1</a>
+are development boards from PJRC. Both boards use i.MX RT1060 MCU, feature several I/Os pins and on-board LED.</p>
+<div class="section" id="features">
+<h2>Features<a class="headerlink" href="#features" title="Permalink to this headline">¶</a></h2>
+<ul class="simple">
+<li><dl class="simple">
+<dt>Processor</dt><dd><ul>
+<li><p>MIMXRT1062DVL6A processor</p></li>
+</ul>
+</dd>
+</dl>
+</li>
+<li><dl class="simple">
+<dt>Memory</dt><dd><ul>
+<li><p>1 MB RAM memory</p></li>
+<li><p>2 MB Flash (Teensy 4.0)</p></li>
+<li><p>8 MB Flash (Teensy 4.1)</p></li>
+<li><p>1 SDIO (4 bit) native SD</p></li>
+</ul>
+</dd>
+</dl>
+</li>
+<li><dl class="simple">
+<dt>Connectivity</dt><dd><ul>
+<li><p>Micro USB host</p></li>
+<li><p>CAN transceivers</p></li>
+<li><p>UART, SPI, I2C</p></li>
+<li><p>PWM output pins</p></li>
+<li><p>10/100 Mb Ethernet (Teensy 4.1 only)</p></li>
+<li><p>Digital audio in/out</p></li>
+</ul>
+</dd>
+</dl>
+</li>
+</ul>
+</div>
+<div class="section" id="leds">
+<h2>LEDs<a class="headerlink" href="#leds" title="Permalink to this headline">¶</a></h2>
+<p>There are two LED status indicators located on the Teensy-4.x board.
+The functions of these LEDs include:</p>
+<ul class="simple">
+<li><dl class="simple">
+<dt>RED LED (loading status)</dt><dd><ul>
+<li><p>dim: ready</p></li>
+<li><p>bright: writing</p></li>
+<li><p>blink: no USB</p></li>
+</ul>
+</dd>
+</dl>
+</li>
+<li><p>USER LED (D3)</p></li>
+</ul>
+<p>Only a single LED, D3, is under software control.</p>
+<p>This LED is not used by the board port unless CONFIG_ARCH_LEDS is
+defined. In that case, the usage by the board port is defined in
+include/board.h and src/imxrt_autoleds.c. The LED is used to encode
+OS-related events as follows:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 36%" />
+<col style="width: 52%" />
+<col style="width: 11%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>SYMBOL</p></th>
+<th class="head"><p>Meaning</p></th>
+<th class="head"><p>LED</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p>LED_STARTED</p></td>
+<td><p>NuttX has been started</p></td>
+<td><p>OFF</p></td>
+</tr>
+<tr class="row-odd"><td><p>LED_HEAPALLOCATE</p></td>
+<td><p>Heap has been allocated</p></td>
+<td><p>OFF</p></td>
+</tr>
+<tr class="row-even"><td><p>LED_IRQSENABLED</p></td>
+<td><p>Interrupts enabled</p></td>
+<td><p>OFF</p></td>
+</tr>
+<tr class="row-odd"><td><p>LED_STACKCREATED</p></td>
+<td><p>Idle stack created</p></td>
+<td><p>ON</p></td>
+</tr>
+<tr class="row-even"><td><p>LED_INIRQ</p></td>
+<td><p>In an interrupt</p></td>
+<td><p>N/C</p></td>
+</tr>
+<tr class="row-odd"><td><p>LED_SIGNAL</p></td>
+<td><p>In a signal handler</p></td>
+<td><p>N/C</p></td>
+</tr>
+<tr class="row-even"><td><p>LED_ASSERTION</p></td>
+<td><p>An assertion failed</p></td>
+<td><p>N/C</p></td>
+</tr>
+<tr class="row-odd"><td><p>LED_PANIC</p></td>
+<td><p>The system has crashed</p></td>
+<td><p>FLASH</p></td>
+</tr>
+</tbody>
+</table>
+<p>Thus if the LED is statically on, NuttX has successfully booted and is,
+apparently, running normally. If the LED is flashing at approximately
+2Hz, then a fatal error has been detected and the system has halted.</p>
+</div>
+<div class="section" id="configurations">
+<h2>Configurations<a class="headerlink" href="#configurations" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="nsh-4-0">
+<h3>nsh-4.0<a class="headerlink" href="#nsh-4-0" title="Permalink to this headline">¶</a></h3>
+<p>Configures the NuttShell (nsh) located at examples/nsh for Teensy 4.0.
+This NSH configuration is focused on low level, command-line driver testing.
+Built-in applications are supported, but none are enabled. NutShells then
+runs on USB console.</p>
+</div>
+<div class="section" id="nsh-4-1">
+<h3>nsh-4.1<a class="headerlink" href="#nsh-4-1" title="Permalink to this headline">¶</a></h3>
+<p>Configures the NuttShell (nsh) located at examples/nsh for Teensy 4.1.
+This NSH configuration is focused on low level, command-line driver testing.
+Built-in applications are supported, but none are enabled. NutShells then
+runs USB console.</p>
+</div>
+<div class="section" id="can-4-1">
+<h3>can-4.1<a class="headerlink" href="#can-4-1" title="Permalink to this headline">¶</a></h3>
+<p>This is an nsh configuration (see above) for Teensy-4.x with added support of
+CAN driver. All FlexCANs (CAN1, CAN2, CAN3) are chosen as default. FlexCAN3
+is FD capable. Please note that device driver name if counted from zero.
+That means for CAN1 -> can0, CAN2 -> can1 and CAN3 -> can2</p>
+<p>Bitrate and sample point can be also changed at System type peripheral selection,
+basic values are 1 MHz for bitrate and 0.80 for sample point. The FlexCAN driver
+for imxrt runs at 80 MHz clock frequency.</p>
+<p>The configuration also includes CAN utilities as candump and cansend.</p>
+<p>This configuration can be easily changed to work with Teensy 4.0 by
+selecting <code class="docutils literal notranslate"><span class="pre">CONFIG_TEENSY_40=y</span></code>.</p>
+<p>This configuration runs over LPUART1 (pins 24 and 25 on Teensy). Communication
+over USB console can be turn on, but it couses problems with FlexCAN.</p>
+</div>
+<div class="section" id="netnsh-4-1">
+<h3>netnsh-4.1<a class="headerlink" href="#netnsh-4-1" title="Permalink to this headline">¶</a></h3>
+<p>This configuration is similar to the nsh configuration except that is
+has networking enabled, both IPv4 and IPv6. This NSH configuration is
+focused on network-related testing.</p>
+<p>This configuration cannot be changed to Teensy 4.0 as this board does
+not have Ethernet capability.</p>
+</div>
+<div class="section" id="sd-4-1">
+<h3>sd-4.1<a class="headerlink" href="#sd-4-1" title="Permalink to this headline">¶</a></h3>
+<p>This is an nsh configuration (see above) for Teensy-4.x with added support of
+connecting micro SD card.</p>
+<p>You can mount micro SD card by:</p>
+<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>mount -t vfat /dev/mmcsd0 /mnt
+</pre></div>
+</div>
+<p>This configuration cannot be changed to Teensy 4.0 as this board does
+not have micro SD card slot.</p>
+</div>
+<div class="section" id="lcd-4-1">
+<h3>lcd-4.1<a class="headerlink" href="#lcd-4-1" title="Permalink to this headline">¶</a></h3>
+<p>This is an nsh configuration (see above) for Teensy-4.x with added support of
+connecting LCD TFT display with ST7789 controller. You can run framebuffer demo
+by starting “fb” in console. The LCD display is connected via SPI4.</p>
+<p>This configuration can be easily changed to work with Teensy 4.0 by
+selecting <code class="docutils literal notranslate"><span class="pre">CONFIG_TEENSY_40=y</span></code>.</p>
+</div>
+</div>
+<div class="section" id="flash">
+<h2>Flash<a class="headerlink" href="#flash" title="Permalink to this headline">¶</a></h2>
+<p>Teensy 4.x boards does not have debugger therefore external firmware has to be used to load NuttX.
+<a class="reference external" href="https://www.pjrc.com/teensy/loader_cli.html">Teensy Loader</a> can be installed and then NuttX can be loaded by:</p>
+<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>teensy_loader_cli --mcu<span class="o">=</span>TEENSY41 -v -w nuttx.hex
+</pre></div>
+</div>
+<p>For Teensy 4.0 board, switch <code class="docutils literal notranslate"><span class="pre">--mcu=TEENSY41</span></code> to <code class="docutils literal notranslate"><span class="pre">--mcu=TEENSY40</span></code>.</p>
+</div>
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+<li class="toctree-l1"><a class="reference internal" href="../../../index.html">Home</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../../../introduction/index.html">Introduction</a></li>
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+<li class="toctree-l1"><a class="reference internal" href="../../../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="../../index.html">Supported Platforms</a><ul class="current">
+<li class="toctree-l2 current"><a class="reference internal" href="../index.html">ARM</a><ul class="current">
+<li class="toctree-l3 current"><a class="current reference internal" href="#">i.MX RT</a><ul>
+<li class="toctree-l4"><a class="reference internal" href="#suported-mcus">Suported MCUs</a></li>
+<li class="toctree-l4"><a class="reference internal" href="#data-and-instruction-cache">Data and Instruction Cache</a></li>
+<li class="toctree-l4"><a class="reference internal" href="#peripheral-support">Peripheral Support</a><ul>
+<li class="toctree-l5"><a class="reference internal" href="#acmp">ACMP</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#adc">ADC</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#can">CAN</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#csi">CSI</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#dac">DAC</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#elcdif">eLCDIF</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#enc">ENC</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#enet">ENET</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#flexio">FlexIO</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#gpio">GPIO</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#i2c">I2C</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#pwm">PWM</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#sai">SAI</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#spdif">SPDIF</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#spi">SPI</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#uart">UART</a></li>
+<li class="toctree-l5"><a class="reference internal" href="#usb">USB</a></li>
+</ul>
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+<li class="toctree-l5"><a class="reference internal" href="boards/teensy-4.x/index.html">Teensy-4.x</a></li>
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+
+ <div class="section" id="i-mx-rt">
+<h1>i.MX RT<a class="headerlink" href="#i-mx-rt" title="Permalink to this headline">¶</a></h1>
+<p>The i.MX RT series of chips from NXP Semiconductors is based around an ARM Cortex-M7 core running
+at 500 MHz, 600 MHz or 1 GHz based on particular MCUs</p>
+<div class="section" id="suported-mcus">
+<h2>Suported MCUs<a class="headerlink" href="#suported-mcus" title="Permalink to this headline">¶</a></h2>
+<p>The following list includes MCUs from i.MX RT series and indicates whether they are supported in NuttX</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 14%" />
+<col style="width: 16%" />
+<col style="width: 32%" />
+<col style="width: 39%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>MCU</p></th>
+<th class="head"><p>Support</p></th>
+<th class="head"><p>Core</p></th>
+<th class="head"><p>Frequency</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p>RT500</p></td>
+<td><p>No</p></td>
+<td><p>Cortex-M33</p></td>
+<td><p>200 MHz</p></td>
+</tr>
+<tr class="row-odd"><td><p>RT600</p></td>
+<td><p>No</p></td>
+<td><p>Cortex-M33</p></td>
+<td><p>300 MHz</p></td>
+</tr>
+<tr class="row-even"><td><p>RT1010</p></td>
+<td><p>No</p></td>
+<td><p>Cortex-M7</p></td>
+<td><p>500 MHz</p></td>
+</tr>
+<tr class="row-odd"><td><p>RT1015</p></td>
+<td><p>No</p></td>
+<td><p>Cortex-M7</p></td>
+<td><p>500 MHz</p></td>
+</tr>
+<tr class="row-even"><td><p>RT1020</p></td>
+<td><p>Yes</p></td>
+<td><p>Cortex-M7</p></td>
+<td><p>500 MHz</p></td>
+</tr>
+<tr class="row-odd"><td><p>RT1024</p></td>
+<td><p>No</p></td>
+<td><p>Cortex-M7</p></td>
+<td><p>500 MHz</p></td>
+</tr>
+<tr class="row-even"><td><p>RT1050</p></td>
+<td><p>Yes</p></td>
+<td><p>Cortex-M7</p></td>
+<td><p>600 MHz</p></td>
+</tr>
+<tr class="row-odd"><td><p>RT1060</p></td>
+<td><p>Yes</p></td>
+<td><p>Cortex-M7</p></td>
+<td><p>600 MHz</p></td>
+</tr>
+<tr class="row-even"><td><p>RT1064</p></td>
+<td><p>Yes</p></td>
+<td><p>Cortex-M7</p></td>
+<td><p>600 MHz</p></td>
+</tr>
+<tr class="row-odd"><td><p>RT1170</p></td>
+<td><p>No</p></td>
+<td><p>Cortex-M7 + M4</p></td>
+<td><p>1 GHz + 400 MHz</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="data-and-instruction-cache">
+<h2>Data and Instruction Cache<a class="headerlink" href="#data-and-instruction-cache" title="Permalink to this headline">¶</a></h2>
+<p>MCUs i.MX RT1010 and higher have separated caches for instructions and data. Data cache is initially
+set as write-through but can be changed to write-back via Kconfig. While write-back gives better
+performance than write-through, it is not supported for all peripherals in NuttX yet. Write-back data
+cache can not be selected while running Ethernet or serial port over USB.</p>
+</div>
+<div class="section" id="peripheral-support">
+<h2>Peripheral Support<a class="headerlink" href="#peripheral-support" title="Permalink to this headline">¶</a></h2>
+<p>The following list indicates peripherals supported in NuttX:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 59%" />
+<col style="width: 41%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Peripheral</p></th>
+<th class="head"><p>Support</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p>ACMP</p></td>
+<td><p>No</p></td>
+</tr>
+<tr class="row-odd"><td><p>ADC</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-even"><td><p>CAN</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-odd"><td><p>CSI</p></td>
+<td><p>No</p></td>
+</tr>
+<tr class="row-even"><td><p>DAC</p></td>
+<td><p>No</p></td>
+</tr>
+<tr class="row-odd"><td><p>eLCDIF</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-even"><td><p>ENC</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-odd"><td><p>ENET</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-even"><td><p>FlexIO</p></td>
+<td><p>No</p></td>
+</tr>
+<tr class="row-odd"><td><p>GPIO</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-even"><td><p>I2S</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-odd"><td><p>PWM</p></td>
+<td><p>No</p></td>
+</tr>
+<tr class="row-even"><td><p>SAI</p></td>
+<td><p>No</p></td>
+</tr>
+<tr class="row-odd"><td><p>SPDIF</p></td>
+<td><p>No</p></td>
+</tr>
+<tr class="row-even"><td><p>SPI</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-odd"><td><p>UART</p></td>
+<td><p>Yes</p></td>
+</tr>
+<tr class="row-even"><td><p>USB</p></td>
+<td><p>Yes</p></td>
+</tr>
+</tbody>
+</table>
+<div class="section" id="acmp">
+<h3>ACMP<a class="headerlink" href="#acmp" title="Permalink to this headline">¶</a></h3>
+<p>The circout for comparing two analog input voltages designed to operate across the full
+range of supply voltage (rail-to-rail operation).</p>
+</div>
+<div class="section" id="adc">
+<h3>ADC<a class="headerlink" href="#adc" title="Permalink to this headline">¶</a></h3>
+<p>ADC driver with the successive approximation analog/digital convertor. The lower-half of
+this driver is initialize by calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_adcinitialize()</span></code>.</p>
+</div>
+<div class="section" id="can">
+<h3>CAN<a class="headerlink" href="#can" title="Permalink to this headline">¶</a></h3>
+<p>FlexCAN driver is supported in MCUs i.MX RT1020 and higher. i.MX RT106x have both classical
+CAN and also one CAN FD while i.MX RT1170 have 3 CAN FD peripherals. FlexCAN driver in imxrt
+works beyond SocketCAN driver layout. The lower-half of this driver is initialize by
+calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_cannitialize()</span></code>.</p>
+<p>There is an booting option that automatically provides initialization of network interface
+in the early stages of booting and therefore calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_cannitialize()</span></code> via
+board specific logic is not neccessary. This however works only when there is only one
+interface in the chip. For running more interfaces (like CAN and Ethernet), network late
+initialization must be turn on by CONFIG_NETDEV_LATEINIT and board specific logic must call
+lower-half part of drivers.</p>
+</div>
+<div class="section" id="csi">
+<h3>CSI<a class="headerlink" href="#csi" title="Permalink to this headline">¶</a></h3>
+<p>CMOS Sensor interface which enables the chip to connect directly to external CMOS image sensors.</p>
+</div>
+<div class="section" id="dac">
+<h3>DAC<a class="headerlink" href="#dac" title="Permalink to this headline">¶</a></h3>
+<p>Digital/analog convertor for external signal is only supported in i.MX RT1170 MCU. It is 12 bit
+lower power, general purpose DAC.</p>
+</div>
+<div class="section" id="elcdif">
+<h3>eLCDIF<a class="headerlink" href="#elcdif" title="Permalink to this headline">¶</a></h3>
+<p>The enhanced Liquid Crystal Display interface (LCDIF) is a general purpose display controller.</p>
+</div>
+<div class="section" id="enc">
+<h3>ENC<a class="headerlink" href="#enc" title="Permalink to this headline">¶</a></h3>
+<p>The enhanced quadrature encoder/decoder module supported in i.MX RT1015 and higher. The lower-half
+of this driver is initialize by calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_qeinitialize()</span></code>.</p>
+</div>
+<div class="section" id="enet">
+<h3>ENET<a class="headerlink" href="#enet" title="Permalink to this headline">¶</a></h3>
+<p>Ethernet driver supported in i.MX RT1020 and higher. The lower-half of this driver is initialize
+by calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_netnitialize()</span></code>.</p>
+<p>There is an booting option that automatically provides initialization of network interface
+in the early stages of booting and therefore calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_cannitialize()</span></code> via
+board specific logic is not neccessary. This however works only when there is only one
+interface in the chip. For running more interfaces (like CAN and Ethernet), network late
+initialization must be turn on by CONFIG_NETDEV_LATEINIT and board specific logic must call
+lower-half part of drivers.</p>
+</div>
+<div class="section" id="flexio">
+<h3>FlexIO<a class="headerlink" href="#flexio" title="Permalink to this headline">¶</a></h3>
+<p>A configurable module providing a range of functionality like emulation of a variety of
+serial/parallel communication protocols, flexible 16-bit timers or programmable logic blocks.
+This module is supported in i.MX RT1010 and higher.</p>
+</div>
+<div class="section" id="gpio">
+<h3>GPIO<a class="headerlink" href="#gpio" title="Permalink to this headline">¶</a></h3>
+<p>Pins can be configured using <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_config_gpio()</span></code> function. Writing to pins is
+done by <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_gpio_write()</span></code> function and reading is done by <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_gpio_read()</span></code>.</p>
+<p>MCUs i.MX RT1060 and higher includes both standard speed GPIOs (1-5) and high speed
+GPIOS (6-9). Regular and high speed GPIO share the same pins (GPIO1 is with GPIO6 etc),
+therefore IOMUXC_GPR_GPR26-29 registers are used to determine what modue is used for the
+GPIO pins.</p>
+</div>
+<div class="section" id="i2c">
+<h3>I2C<a class="headerlink" href="#i2c" title="Permalink to this headline">¶</a></h3>
+<p>Inter-Integrated Circout module supporting an interface to an I2C bus as master and/or
+as a slave. The lower-half of this driver is initialize by calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_i2cbus_initialize()</span></code>.</p>
+</div>
+<div class="section" id="pwm">
+<h3>PWM<a class="headerlink" href="#pwm" title="Permalink to this headline">¶</a></h3>
+<p>Pulse width modulator supported in i.MX RT1010 and higher.</p>
+</div>
+<div class="section" id="sai">
+<h3>SAI<a class="headerlink" href="#sai" title="Permalink to this headline">¶</a></h3>
+<p>Synchronous audio interface provided by I2C module. Supported in i.MX RT1015 and higher.</p>
+</div>
+<div class="section" id="spdif">
+<h3>SPDIF<a class="headerlink" href="#spdif" title="Permalink to this headline">¶</a></h3>
+<p>Sony/Philips digital interface audio block. It is a stereo transciever that allows the
+processor to receive and transmit digital audio. Supported in i.MX RT1010 and higher.</p>
+</div>
+<div class="section" id="spi">
+<h3>SPI<a class="headerlink" href="#spi" title="Permalink to this headline">¶</a></h3>
+<p>Serial Peripheral interface module that supports an interface to an SPI bus as a master
+and/or a slave. The lower-half of this driver is initialize by calling <code class="xref c c-func docutils literal notranslate"><span class="pre">imxrt_lpsibus_initialize()</span></code>.</p>
+</div>
+<div class="section" id="uart">
+<h3>UART<a class="headerlink" href="#uart" title="Permalink to this headline">¶</a></h3>
+<p>Universal Asynchronous Receiver/Transmitter module. UART is initialized automatically during
+MCU boot.</p>
+</div>
+<div class="section" id="usb">
+<h3>USB<a class="headerlink" href="#usb" title="Permalink to this headline">¶</a></h3>
+<p>Console communication over USB is supported via CDC-ACM. Only USB Device is currently supported
+for i.MX RT in NuttX</p>
+</div>
+</div>
+<div class="section" id="supported-boards">
+<h2>Supported Boards<a class="headerlink" href="#supported-boards" title="Permalink to this headline">¶</a></h2>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="boards/teensy-4.x/index.html">Teensy-4.x</a></li>
+</ul>
+</div>
+</div>
+</div>
+
+
+ </div>
+
+ </div>
+ <footer>
+ <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
+ <a href="boards/teensy-4.x/index.html" class="btn btn-neutral float-right" title="Teensy-4.x" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
+ <a href="../index.html" class="btn btn-neutral float-left" title="ARM" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
+ </div>
+
+ <hr/>
+
+ <div role="contentinfo">
+ <p>
+ © Copyright 2020, The Apache Software Foundation.
+
+ </p>
+ </div>
+
+</footer>
+ </div>
+ </div>
+
+ </section>
+
+ </div>
+
+
+ <script type="text/javascript">
+ jQuery(function () {
+ SphinxRtdTheme.Navigation.enable(true);
+ });
+ </script>
+
+
+
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/content/docs/latest/platforms/arm/index.html b/content/docs/latest/platforms/arm/index.html
index 8a96ebf..fd80bb4 100644
--- a/content/docs/latest/platforms/arm/index.html
+++ b/content/docs/latest/platforms/arm/index.html
@@ -61,7 +61,7 @@
<link rel="index" title="Index" href="../../genindex.html" />
<link rel="search" title="Search" href="../../search.html" />
- <link rel="next" title="Nordic nRF52" href="nrf52/index.html" />
+ <link rel="next" title="i.MX RT" href="imxrt/index.html" />
<link rel="prev" title="Supported Platforms" href="../index.html" />
</head>
@@ -126,6 +126,7 @@
<li class="toctree-l1"><a class="reference internal" href="../../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../index.html">Supported Platforms</a><ul class="current">
<li class="toctree-l2 current"><a class="current reference internal" href="#">ARM</a><ul>
+<li class="toctree-l3"><a class="reference internal" href="imxrt/index.html">i.MX RT</a></li>
<li class="toctree-l3"><a class="reference internal" href="nrf52/index.html">Nordic nRF52</a></li>
</ul>
</li>
@@ -213,6 +214,7 @@
<p>The following ARM SoC are supported:</p>
<div class="toctree-wrapper compound">
<ul>
+<li class="toctree-l1"><a class="reference internal" href="imxrt/index.html">i.MX RT</a></li>
<li class="toctree-l1"><a class="reference internal" href="nrf52/index.html">Nordic nRF52</a></li>
</ul>
</div>
@@ -224,7 +226,7 @@
</div>
<footer>
<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
- <a href="nrf52/index.html" class="btn btn-neutral float-right" title="Nordic nRF52" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
+ <a href="imxrt/index.html" class="btn btn-neutral float-right" title="i.MX RT" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
<a href="../index.html" class="btn btn-neutral float-left" title="Supported Platforms" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
</div>
diff --git a/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-mdk/index.html b/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-mdk/index.html
index e421c5f..1957c5a 100644
--- a/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-mdk/index.html
+++ b/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-mdk/index.html
@@ -126,6 +126,7 @@
<li class="toctree-l1"><a class="reference internal" href="../../../../../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../../../../index.html">Supported Platforms</a><ul class="current">
<li class="toctree-l2 current"><a class="reference internal" href="../../../index.html">ARM</a><ul class="current">
+<li class="toctree-l3"><a class="reference internal" href="../../../imxrt/index.html">i.MX RT</a></li>
<li class="toctree-l3 current"><a class="reference internal" href="../../index.html">Nordic nRF52</a><ul class="current">
<li class="toctree-l4"><a class="reference internal" href="../../index.html#clock-configuration">Clock Configuration</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../index.html#system-timer">System Timer</a></li>
diff --git a/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-sparkfun/index.html b/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-sparkfun/index.html
index 81cf354..78bb16a 100644
--- a/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-sparkfun/index.html
+++ b/content/docs/latest/platforms/arm/nrf52/boards/nrf52832-sparkfun/index.html
@@ -126,6 +126,7 @@
<li class="toctree-l1"><a class="reference internal" href="../../../../../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../../../../index.html">Supported Platforms</a><ul class="current">
<li class="toctree-l2 current"><a class="reference internal" href="../../../index.html">ARM</a><ul class="current">
+<li class="toctree-l3"><a class="reference internal" href="../../../imxrt/index.html">i.MX RT</a></li>
<li class="toctree-l3 current"><a class="reference internal" href="../../index.html">Nordic nRF52</a><ul class="current">
<li class="toctree-l4"><a class="reference internal" href="../../index.html#clock-configuration">Clock Configuration</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../index.html#system-timer">System Timer</a></li>
diff --git a/content/docs/latest/platforms/arm/nrf52/index.html b/content/docs/latest/platforms/arm/nrf52/index.html
index 4d34a14..9b23fe6 100644
--- a/content/docs/latest/platforms/arm/nrf52/index.html
+++ b/content/docs/latest/platforms/arm/nrf52/index.html
@@ -62,7 +62,7 @@
<link rel="index" title="Index" href="../../../genindex.html" />
<link rel="search" title="Search" href="../../../search.html" />
<link rel="next" title="MakerDiary nRF52832-MDK" href="boards/nrf52832-mdk/index.html" />
- <link rel="prev" title="ARM" href="../index.html" />
+ <link rel="prev" title="Teensy-4.x" href="../imxrt/boards/teensy-4.x/index.html" />
</head>
<body class="wy-body-for-nav">
@@ -126,6 +126,7 @@
<li class="toctree-l1"><a class="reference internal" href="../../../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../../index.html">Supported Platforms</a><ul class="current">
<li class="toctree-l2 current"><a class="reference internal" href="../index.html">ARM</a><ul class="current">
+<li class="toctree-l3"><a class="reference internal" href="../imxrt/index.html">i.MX RT</a></li>
<li class="toctree-l3 current"><a class="current reference internal" href="#">Nordic nRF52</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#clock-configuration">Clock Configuration</a></li>
<li class="toctree-l4"><a class="reference internal" href="#system-timer">System Timer</a></li>
@@ -482,7 +483,7 @@ channels will also be ocuppied (<code class="docutils literal notranslate"><span
<footer>
<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
<a href="boards/nrf52832-mdk/index.html" class="btn btn-neutral float-right" title="MakerDiary nRF52832-MDK" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
- <a href="../index.html" class="btn btn-neutral float-left" title="ARM" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
+ <a href="../imxrt/boards/teensy-4.x/index.html" class="btn btn-neutral float-left" title="Teensy-4.x" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
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<hr/>
diff --git a/content/docs/latest/platforms/index.html b/content/docs/latest/platforms/index.html
index 22ff2cc..0ad21b7 100644
--- a/content/docs/latest/platforms/index.html
+++ b/content/docs/latest/platforms/index.html
@@ -210,6 +210,10 @@ series and boards supported in NuttX:</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="arm/index.html">ARM</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="arm/imxrt/index.html">i.MX RT</a><ul>
+<li class="toctree-l3"><a class="reference internal" href="arm/imxrt/boards/teensy-4.x/index.html">Teensy-4.x</a></li>
+</ul>
+</li>
<li class="toctree-l2"><a class="reference internal" href="arm/nrf52/index.html">Nordic nRF52</a><ul>
<li class="toctree-l3"><a class="reference internal" href="arm/nrf52/boards/nrf52832-mdk/index.html">MakerDiary nRF52832-MDK</a></li>
<li class="toctree-l3"><a class="reference internal" href="arm/nrf52/boards/nrf52832-sparkfun/index.html">Sparkfun nRF52832 Breakout</a></li>
diff --git a/content/docs/latest/reference/user/07_signals.html b/content/docs/latest/reference/user/07_signals.html
index 81227b7..f74ca36 100644
--- a/content/docs/latest/reference/user/07_signals.html
+++ b/content/docs/latest/reference/user/07_signals.html
@@ -348,7 +348,7 @@ provided by NuttX:</p>
<li><p><a class="reference internal" href="#c.sigaddset" title="sigaddset"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigaddset()</span></code></a></p></li>
<li><p><a class="reference internal" href="#c.sigdelset" title="sigdelset"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigdelset()</span></code></a></p></li>
<li><p><a class="reference internal" href="#c.sigismember" title="sigismember"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigismember()</span></code></a></p></li>
-<li><p><a class="reference internal" href="#c.sigaction" title="sigaction"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigaction()</span></code></a></p></li>
+<li><p><a class="reference internal" href="structures.html#c.sigaction" title="sigaction"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigaction()</span></code></a></p></li>
<li><p><a class="reference internal" href="#c.sigignore" title="sigignore"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigignore()</span></code></a></p></li>
<li><p><a class="reference internal" href="#c.sigset" title="sigset"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigset()</span></code></a></p></li>
<li><p><a class="reference internal" href="#c.sigprocmask" title="sigprocmask"><code class="xref c c-func docutils literal notranslate"><span class="pre">sigprocmask()</span></code></a></p></li>
@@ -470,7 +470,7 @@ name.</p>
<dl class="c function">
<dt id="c.sigaction">
-<span class="pre">int</span> <code class="sig-name descname"><span class="pre">sigaction</span></code><span class="sig-paren">(</span><span class="pre">int</span> <em><span class="pre">signo</span></em>, <em class="property"><span class="pre">const</span></em> <em class="property"><span class="pre">struct</span></em> <a class="reference internal" href="#c.sigaction" title="sigaction"><span class="pre">sigaction</span></a> <span class="pre">*</span><em><span class="pre">act</span></em>, < [...]
+<span class="pre">int</span> <code class="sig-name descname"><span class="pre">sigaction</span></code><span class="sig-paren">(</span><span class="pre">int</span> <em><span class="pre">signo</span></em>, <em class="property"><span class="pre">const</span></em> <em class="property"><span class="pre">struct</span></em> <a class="reference internal" href="structures.html#c.sigaction" title="sigaction"><span class="pre">sigaction</span></a> <span class="pre">*</span><em><span class="pre">act [...]
<dd><p>Allows the calling task to examine and/or
specify the action to be associated with a specific signal.</p>
<p>The structure sigaction, used to describe an action to be taken, is
diff --git a/content/docs/latest/reference/user/structures.html b/content/docs/latest/reference/user/structures.html
index 084f15e..a7e9624 100644
--- a/content/docs/latest/reference/user/structures.html
+++ b/content/docs/latest/reference/user/structures.html
@@ -373,7 +373,7 @@ NuttX and a MoBY application:</p>
</div>
<dl class="c struct">
<dt id="c.sigaction">
-<em class="property"><span class="pre">struct</span> </em><code class="sig-name descname"><span class="pre">sigaction</span></code><br /></dt>
+<em class="property"><span class="pre">struct</span> </em><code class="sig-name descname"><span class="pre">sigaction</span></code><a class="headerlink" href="#c.sigaction" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
<p>The following structure defines the action to take for given signal:</p>
diff --git a/content/docs/latest/searchindex.js b/content/docs/latest/searchindex.js
index 92d38fe..c2da5d9 100644
--- a/content/docs/latest/searchindex.js
+++ b/content/docs/latest/searchindex.js
@@ -1 +1 @@
-Search.setIndex({docnames:["applications/index","applications/nsh/builtin","applications/nsh/commands","applications/nsh/config","applications/nsh/customizing","applications/nsh/index","applications/nsh/installation","applications/nsh/login","applications/nsh/nsh","components/binfmt","components/drivers/block/index","components/drivers/character/analog","components/drivers/character/can","components/drivers/character/foc","components/drivers/character/index","components/drivers/character [...]
\ No newline at end of file
+Search.setIndex({docnames:["applications/index","applications/nsh/builtin","applications/nsh/commands","applications/nsh/config","applications/nsh/customizing","applications/nsh/index","applications/nsh/installation","applications/nsh/login","applications/nsh/nsh","components/binfmt","components/drivers/block/index","components/drivers/character/analog","components/drivers/character/can","components/drivers/character/foc","components/drivers/character/index","components/drivers/character [...]
\ No newline at end of file
diff --git a/content/feed.xml b/content/feed.xml
index c98af3e..21c02d1 100644
--- a/content/feed.xml
+++ b/content/feed.xml
@@ -5,8 +5,8 @@
<description></description>
<link>/</link>
<atom:link href="/feed.xml" rel="self" type="application/rss+xml"/>
- <pubDate>Tue, 13 Apr 2021 00:15:16 +0000</pubDate>
- <lastBuildDate>Tue, 13 Apr 2021 00:15:16 +0000</lastBuildDate>
+ <pubDate>Wed, 14 Apr 2021 00:13:50 +0000</pubDate>
+ <lastBuildDate>Wed, 14 Apr 2021 00:13:50 +0000</lastBuildDate>
<generator>Jekyll v3.8.5</generator>
<item>