183 lines
6.6 KiB
Plaintext
183 lines
6.6 KiB
Plaintext
README
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======
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This is the README file for a port of NuttX to the TM4C1294 Connected Launchpad
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(more correctly, the EK-TM4C1294XL). For more information about this board,
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see http://www.ti.com/tool/ek-tm4c1294xl
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DK-TM4C129X
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===========
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This board configuration derives from the DK-T4C129X. Refer to the README
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file at nuttx/configs/dk-tm4c129x for additional information that may be
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relevant to this board as well.
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Serial Console
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==============
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These configurations use UART0 for the serial console. UART0 is connected
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to the on-board TM4C123G-based debugger and is forwarded through the ICDI
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virtual UART.
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Configurations
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==============
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Each EK-TM4C1294XL configuration is maintained in a
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sub-directory and can be selected as follow:
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cd tools
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./configure.sh tm4c1294-launchpad/<subdir>
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cd -
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. ./setenv.sh
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Where <subdir> is one of the following:
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nsh:
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---
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Configures the NuttShell (nsh) located at apps/examples/nsh. The
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configuration enables the serial ICDI vitual UART on UART0. Support for
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builtin applications is enabled, but in the base configuration no
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builtin applications are selected.
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NOTES:
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1. This configuration uses the mconf-based configuration tool. To
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change this configuration using that tool, you should:
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a. Build and install the kconfig-mconf tool. See nuttx/README.txt
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see additional README.txt files in the NuttX tools repository.
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b. Execute 'make menuconfig' in nuttx/ in order to start the
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reconfiguration process.
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2. By default, this configuration uses the CodeSourcery toolchain
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for Windows and builds under Cygwin (or probably MSYS). That
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can easily be reconfigured, of course.
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CONFIG_HOST_LINUX=y : Linux (Cygwin under Windows okay too).
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CONFIG_ARMV7M_TOOLCHAIN_BUILDROOT=y : Buildroot (arm-nuttx-elf-gcc)
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CONFIG_RAW_BINARY=y : Output formats: ELF and raw binary
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3. Default stack sizes are large and should really be tuned to reduce
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the RAM footprint:
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CONFIG_SCHED_HPWORKSTACKSIZE=2048
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CONFIG_IDLETHREAD_STACKSIZE=1024
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CONFIG_USERMAIN_STACKSIZE=2048
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CONFIG_PTHREAD_STACK_DEFAULT=2048
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CONFIG_POSIX_SPAWN_PROXY_STACKSIZE=1024
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CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=2048
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CONFIG_BUILTIN_PROXY_STACKSIZE=1024
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CONFIG_NSH_TELNETD_DAEMONSTACKSIZE=2048
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CONFIG_NSH_TELNETD_CLIENTSTACKSIZE=2048
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4. This configuration has the network enabled by default. See the
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paragraph "Using the network with NSH" in the DK-TM4C129X README).
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Networking can easily be disabled or reconfigured (See see the
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network related configuration settings in the section entitled
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"Networking" in the DK-TM4C129X README).
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By default, this configuration assumes a 10.0.0.xx network. It
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uses a fixed IP address of 10.0.0.2 and assumes that the host is
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at 10.0.0.1 and that the host provides the default router. The
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network mask is 255.255.255.0. These address can be changed by
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modifying the settings in the configuration. DHCPC can be enabled
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be modifying this default configuration (See the "Networking"
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section in the DK-TM4C129X README).
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The network initialization thread is enabled in this example. NSH
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will create a separate thread when it starts to initialize the
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network. This eliminates start-up delays to bring the network. This
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feature may be disabled by reverting the configuration as described
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under "Network Initialization Thread" in the DK-TM4C129X README.
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The persistent network monitor thread is also available in this
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configuration. The network monitor will monitor changes in the
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link status and gracefully take the network down when the link is
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lost (for example, if the cable is disconnected) and bring the
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network back up when the link becomes available again (for example,
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if the cable is reconnected). See the paragraph "Network Monitor"
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in the DK-TM4C129X README for additional information.
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ipv6:
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----
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This is another version of the NuttShell configuration. It is very
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similar to the nsh configuration except that it has IPv6 enabled and
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IPv4 disabled. Several network utilities that are not yet available
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under IPv6 are disabled.
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NOTES:
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1. As of 2015-02-12, this configuration was identical to the nsh
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configuration other than using IPv6. So all of the notes above
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regarding the nsh configuration apply.
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Telnet does not work with IPv6.
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2. This configuration can be modified to that both IPv4 and IPv6
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are support. Here is a summary of the additional configuration
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settings requird to support both IPv4 and IPv6:
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CONFIG_NET_IPv4=y
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CONFIG_NET_ARP=y
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CONFIG_NET_ARP_SEND=y (optional)
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CONFIG_NET_ICMP=y
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CONFIG_NET_ICMP_PING=y
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CONFIG_NETDB_DNSCLIENT=y
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CONFIG_NETUTILS_TELNETD=y
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CONFIG_NSH_IPADDR=0x0a000002
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CONFIG_NSH_DRIPADDR=0x0a000001
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CONFIG_NSH_NETMASK=0xffffff00
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CONFIG_NSH_TELNET=y
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Then from NSH, you have both ping and ping6 commands:
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nsh> ping 10.0.0.1
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nsh> ping6 fc00::1
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And from the host you can do similar:
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ping 10.0.0.2
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ping6 fc00::2 (Linux)
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ping -6 fc00::2 (Windows cmd)
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and Telnet again works from the host:
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telnet 10.0.0.2
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3. You can enable IPv6 autonomous address configuration with the
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following changes to the configuration:
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+ CONFIG_NET_ICMPv6_AUTOCONF=y
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+ CONFIG_ICMPv6_AUTOCONF_DELAYMSEC=100
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+ CONFIG_ICMPv6_AUTOCONF_MAXTRIES=5
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- CONFIG_NSH_DRIPv6ADDR_1=0xfc00
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- CONFIG_NSH_DRIPv6ADDR_2=0x0000
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- CONFIG_NSH_DRIPv6ADDR_3=0x0000
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- CONFIG_NSH_DRIPv6ADDR_4=0x0000
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- CONFIG_NSH_DRIPv6ADDR_5=0x0000
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- CONFIG_NSH_DRIPv6ADDR_6=0x0000
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- CONFIG_NSH_DRIPv6ADDR_7=0x0000
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- CONFIG_NSH_DRIPv6ADDR_8=0x0001
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- CONFIG_NSH_IPv6ADDR_1=0xfc00
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- CONFIG_NSH_IPv6ADDR_2=0x0000
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- CONFIG_NSH_IPv6ADDR_3=0x0000
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- CONFIG_NSH_IPv6ADDR_4=0x0000
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- CONFIG_NSH_IPv6ADDR_5=0x0000
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- CONFIG_NSH_IPv6ADDR_6=0x0000
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- CONFIG_NSH_IPv6ADDR_7=0x0000
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- CONFIG_NSH_IPv6ADDR_8=0x0002
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- CONFIG_NSH_IPv6NETMASK_1=0xffff
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- CONFIG_NSH_IPv6NETMASK_2=0xffff
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- CONFIG_NSH_IPv6NETMASK_3=0xffff
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- CONFIG_NSH_IPv6NETMASK_4=0xffff
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- CONFIG_NSH_IPv6NETMASK_5=0xffff
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- CONFIG_NSH_IPv6NETMASK_6=0xffff
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- CONFIG_NSH_IPv6NETMASK_7=0xffff
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- CONFIG_NSH_IPv6NETMASK_8=0xff80
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