README
^^^^^^

  o Configuring NuttX
  o Building NuttX
  o Documentation

CONFIGURING NUTTX
^^^^^^^^^^^^^^^^^

"Canned" NuttX configuration files are retained in:

  configs/<board-name>/<config-dir>

Where <board-name> is the name of your development board and <config-dir>.
Configuring NuttX requires only copying three files from the <config-dir>
to the directly where you installed NuttX (TOPDIR):

  Copy configs/<board-name>/<config-dir>/Make.def to ${TOPDIR}/Make.defs
    Make.defs describes the rules needed by you tool chain to compile
    and link code.  You may need to modify this file to match the
    specific needs of your toolchain.

  Copy configs/<board-name>/<config-dir>/setenv.sh to ${TOPDIR}/setenv.sh
    setenv.sh is an optional convenience file that I use to set
    the PATH variable to the toolchain binaries.  You may chose to
    use setenv.sh or not.  If you use it, then it may need to be
    modified to include the path to your toolchain binaries.

  Copy configs/<board-name>/<config-dir>/defconfig to ${TOPDIR}/.config
    The defconfig file holds the actual build configuration.  This
    file is included by all other make files to determine what is
    included in the build and what is not.  This file is also used
    to generate a C configuration header at include/nuttx/config.h.

General information about configuring NuttX can be found in:

  ${TOPDIR}/configs/README.txt
  ${TOPDIR}/configs/<board-name>/README.txt

There is a configuration script in the tools/ directory that makes this
easier.  It is used as follows:

  cd ${TOPDIR}/tools
  ./configure.sh <board-name>/<config-dir>

BUILDING NUTTX
^^^^^^^^^^^^^^

NuttX builds in-place in the source tree.  You do not need to create
any special build directories.  Assuming that your Make.defs is setup
properly for your tool chain, the following steps are all that are
required to build NuttX:

  cd ${TOPDIR}
  make

At least one configuration (eagle100) requires additional command line
arguments on the make command.  Read ${TOPDIR}/configs/<board-name>/README.txt
to see if that applies to your target.

DOCUMENTATION
^^^^^^^^^^^^^

Additional information can be found in the Documentation/ directory and
also in README files that are scattered throughout the source tree.  The
documentation is in HTML and can be access by loading the following file
into your Web browser:

  Documentation/index.html

NuttX documentation is also available online at http://www.nuttx.org.

Below is a guide to the available README files in the NuttX source tree:

 |
 |- arch/
 |   |
 |   |- arm
 |   |   `- src
 |   |       `- lpc214x/README.txt
 |   |- sh/
 |   |   |- include/
 |   |   |   |-m16c/README.txt
 |   |   |   |-sh1/README.txt
 |   |   |   `-README.txt
 |   |   |- src/
 |   |   |   |-common/README.txt
 |   |   |   |-m16c/README.txt
 |   |   |   |-sh1/README.txt
 |   |   |   `-README.txt
 |   `- z80/
 |   |   `- src/
 |   |       `- z80/README.txt
 |   `- README.txt
 |- configs/
 |   |- c5471evm/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- eagle100/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- ez80f910200kitg/
 |   |   |- ostest/README.txt
 |   |   `- README.txt
 |   |- ez80f910200zco/
 |   |   |- dhcpd/README.txt
 |   |   |- httpd/README.txt
 |   |   |- nettest/README.txt
 |   |   |- nsh/README.txt
 |   |   |- ostest/README.txt
 |   |   |- poll/README.txt
 |   |   `- README.txt
 |   |- m68332evb/
 |   |   |- include/README.txt
 |   |   `- src/README.txt
 |   |- mcu123-lpc214x/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- mx1ads/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- ntosd-dm320/
 |   |   |- doc/README.txt
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- olimex-strp711/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- pjrc-8051/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- sim/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- skp16c26/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- stm3210e-eval/
 |   |   |- include/README.txt
 |   |   |- RIDE/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- us7032evb1/
 |   |   |- bin/README.txt
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- xtrs/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- z16f2800100zcog/
 |   |   |- ostest/README.txt
 |   |   |- pashello/README.txt
 |   |   `- README.txt
 |   |- z80sim/
 |   |   |- include/README.txt
 |   |   |- src/README.txt
 |   |   `- README.txt
 |   |- z8encore000zco/
 |   |   |- ostest/README.txt
 |   |   `- README.txt
 |   |- z8f64200100kit/
 |   |   |- ostest/README.txt
 |   |   `- README.txt
 |   `- README.txt
 |- drivers/
 |   `- README.txt
 |- examples/
 |   |- nsh/README.txt
 |   |- pashello/README.txt
 |   `- README.txt
 |- graphics/
 |   `- README.txt
 |- libxx/
 |   `- README.txt
 `- netutils/
     |- telnetd/README.txt
     `- README