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nuttx/examples/README.txt
patacongo 4dd12b73af Add NSH ping command 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@870 42af7a65-404d-4744-a932-0658087f49c3
2008-09-02 23:04:10 +00:00

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examples
^^^^^^^^
The examples directory contains several sample applications that
can be linked with nuttx. The specific example is selected in the
configs/<board-name>/defconfig file via the CONFIG_EXAMPLE setting.
For example,
CONFIG_EXAMPLE=ostest
Selects the examples/ostest example.
examples/ostest
^^^^^^^^^^^^^^^
This is the NuttX 'qualification' suite. It attempts to exercise
a broad set of OS functionality. Its coverage is not very extensive
as of this writing, but it is used to qualify each NuttX release.
The behavior of the ostest can be modified with the following
settings in the configs/<board-name>/defconfig file:
* CONFIG_EXAMPLES_OSTEST_LOOPS
Used to control the number of executions of the test. If
undefined, the test executes one time. If defined to be
zero, the test runs forever.
* CONFIG_EXAMPLES_OSTEST_STACKSIZE
Used to create the ostest task. Default is 8192.
examples/nsh
^^^^^^^^^^^^
This directory contains the NuttShell (NSH). This is a simple
shell-like application. With some additional development, NSH will
someday be a great NuttX application debugger. At present, NSH
supports the following commands:
Command Depends on Configuration
---------- --------------------------
[ !CONFIG_EXAMPLES_NSH_DISABLESCRIPT
cat CONFIG_NFILE_DESCRIPTORS > 0
cd !CONFIG_DISABLE_ENVIRON && CONFIG_NFILE_DESCRIPTORS > 0
cp CONFIG_NFILE_DESCRIPTORS > 0
echo --
exec --
exit --
help --
ifconfig CONFIG_NET
ls CONFIG_NFILE_DESCRIPTORS > 0
mb,mh,mw ---
mem ---
mkdir !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0
mkfatfs !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_FAT
mkfifo !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0
mount !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_FAT
ping CONFIG_NET && CONFIG_NET_ICMP && CONFIG_NET_ICMP_PING && !CONFIG_DISABLE_CLOCK && !CONFIG_DISABLE_SIGNALS
ps --
pwd !CONFIG_DISABLE_ENVIRON && CONFIG_NFILE_DESCRIPTORS > 0
rm !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0
rmdir !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0
set !CONFIG_DISABLE_ENVIRON
sh CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0 && !CONFIG_EXAMPLES_NSH_DISABLESCRIPT
sleep !CONFIG_DISABLE_SIGNALS
test !CONFIG_EXAMPLES_NSH_DISABLESCRIPT
umount !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_FAT
unset !CONFIG_DISABLE_ENVIRON
usleep !CONFIG_DISABLE_SIGNALS
Test syntax:
expression = simple-expression | !expression |
expression -o expression | expression -a expression
simple-expression = unary-expression | binary-expression
unary-expression = string-unary | file-unary
string-unary = -n string | -z string
file-unary = -b file | -c file | -d file | -e file | -f file |
-r file | -s file | -w file
binary-expression = string-binary | numeric-binary
string-binary = string = string | string == string | string != string
numeric-binary = integer -eq integer | integer -ge integer |
integer -gt integer | integer -le integer |
integer -lt integer | integer -ne integer
Other behavior of NSH can be modified with the following settings in
the configs/<board-name>/defconfig file:
* CONFIG_EXAMPLES_NSH_FILEIOSIZE
Size of a static I/O buffer used for file access (ignored if
there is no filesystem).
* CONFIG_EXAMPLES_NSH_STRERROR
strerror(errno) makes more readable output but strerror() is
very large and will not be used unless this setting is 'y'
* CONFIG_EXAMPLES_NSH_LINELEN
The maximum length of one command line and of one output line.
Default: 80
* CONFIG_EXAMPLES_NSH_STACKSIZE
The stack size to use when spawning new threads or tasks. Such
new threads are generated when a command is executed in background
or as new TELNET connections are established.
* CONFIG_EXAMPLES_NSH_NESTDEPTH
The maximum number of nested if-then[-else]-fi sequences that
are permissable. Default: 3
* CONFIG_EXAMPLES_NSH_DISABLESCRIPT
This can be set to 'y' to suppress support for scripting. This
setting disables the 'sh', 'test', and '[' commands and the
if-then[-else]-fi construct. This would only be set on systems
where a minimal footprint is a necessity and scripting is not.
* CONFIG_EXAMPLES_NSH_DISABLEBG
This can be set to 'y' to suppress support for background
commands. This setting disables the 'nice' command prefix and
the '&' command suffix. This would only be set on systems
where a minimal footprint is a necessity and background command
execution is not.
* CONFIG_EXAMPLES_NSH_CONSOLE
If CONFIG_EXAMPLES_NSH_CONSOLE is set to 'y', then a serial
console front-end is selected.
* CONFIG_EXAMPLES_NSH_TELNET
If CONFIG_EXAMPLES_NSH_TELNET is set to 'y', then a TELENET
server front-end is selected. When this option is provided,
you may log into NuttX remotely using telnet in order to
access NSH.
One or both of CONFIG_EXAMPLES_NSH_CONSOLE and CONFIG_EXAMPLES_NSH_TELNET
must be defined. If CONFIG_EXAMPLES_NSH_TELNET is selected, then there some
other configuration settings that apply:
* CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE
Determines the size of the I/O buffer to use for sending/
receiving TELNET commands/reponses
* CONFIG_EXAMPLES_NSH_DHCPC
Obtain the the IP address via DHCP.
* CONFIG_EXAMPLES_NSH_IPADDR
If CONFIG_EXAMPLES_NSH_DHCPC is NOT set, then the static IP
address must be provided.
* CONFIG_EXAMPLES_NSH_DRIPADDR
Default router IP address
* CONFIG_EXAMPLES_NSH_NETMASK
Network mask
* CONFIG_EXAMPLES_NSH_NOMAC
Set if your ethernet hardware has no built-in MAC address.
If set, a bogus MAC will be assigned.
examples/mount
^^^^^^^^^^^^^^
This contains a simple test of filesystem mountpoints.
* CONFIG_EXAMPLES_MOUNT_DEVNAME
The name of the user-provided block device to mount.
If CONFIG_EXAMPLES_MOUNT_DEVNAME is not provided, then
a RAM disk will be configured.
* CONFIG_EXAMPLES_MOUNT_NSECTORS
The number of "sectors" in the RAM disk used when
CONFIG_EXAMPLES_MOUNT_DEVNAME is not defined.
* CONFIG_EXAMPLES_MOUNT_SECTORSIZE
The size of each sectors in the RAM disk used when
CONFIG_EXAMPLES_MOUNT_DEVNAME is not defined.
* CONFIG_EXAMPLES_MOUNT_RAMDEVNO
The RAM device minor number used to mount the RAM disk used
when CONFIG_EXAMPLES_MOUNT_DEVNAME is not defined. The
default is zero (meaning that "/dev/ram0" will be used).
examples/null
^^^^^^^^^^^^^
This is the do nothing application. It is only used for bringing
up new NuttX architectures.
examples/uip
^^^^^^^^^^^^
This is a port of uIP example application. It includes
conditionally compiled logic to exercise the uIP webserver,
webclient, telnet, smtp, dncpc, and resolver.
examples/netttest
^^^^^^^^^^^^^^^^^
This is a simple network test for verifying client- and server-
functionality in a TCP/IP connection.
examples/udp
^^^^^^^^^^^^
This is a simple network test for verifying client- and server-
functionality over UDP.
examples/pashello
^^^^^^^^^^^^^^^^^
This is "Hello, World" implemented via the Pascal P-Code interpreter
examples/pipe
^^^^^^^^^^^^^
A test of the mkfifo() and pipe() APIs.
* CONFIG_EXAMPLES_PIPE_STACKSIZE
Sets the size of the stack to use when creating the child tasks.
The default size is 1024.
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