# NuttX README Files Last Updated: April 18, 2017

Additional information can be found in the `Documentation/` directory and also in `README` files that are scattered throughout the source tree. Below is a guide to the available `README` files. Some `README` files contain more important information than others. The key `README` files are shown in `BOLDFACE/ITALIC` below.

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

    nuttx/
     |- README.txt
     |- arch/
     |   |
     |   |- arm/
     |   |   `- src
     |   |       `- lpc214x/README.txt
     |   |- renesas/
     |   |   |- include/
     |   |   |   `-README.txt
     |   |   |- src/
     |   |   |   `-README.txt
     |   |- x86/
     |   |   |- include/
     |   |   |   `-README.txt
     |   |   `- src/
     |   |       `-README.txt
     |   |- z80/
     |   |   |- src/z80
     |   |   |   `- README.txt
     |   |   `- src/z180
     |   |       |- README.txt
     |   |       `- z180_mmu.txt
     |   `- README.txt
     |- binfmt/
     |   |- libpcode/
     |   `- README.txt
     |- audio/
     |   `- README.txt
     |- configs/
     |   |- amber/
     |   |   `- README.txt
     |   |- arduino-mega2560/
     |   |   `- README.txt
     |   |- arduino-due/
     |   |   `- README.txt
     |   |- avr32dev1/
     |   |   `- README.txt
     |   |- bambino-200e/
     |   |   `- README.txt
     |   |- c5471evm/
     |   |   `- README.txt
     |   |- cc3200-launchpad/
     |   |   `- README.txt
     |   |- clicker2-stm32/
     |   |   `- README.txt
     |   |- cloudctrl/
     |   |   `- README.txt
     |   |- demo9s12ne64/
     |   |   `- README.txt
     |   |- dk-tm4c129x/
     |   |   `- README.txt
     |   |- ea3131/
     |   |   `- README.txt
     |   |- ea3152/
     |   |   `- README.txt
     |   |- eagle100/
     |   |   `- README.txt
     |   |- efm32-g8xx-stk/
     |   |   `- README.txt
     |   |- efm32gg-stk3700/
     |   |   `- README.txt
     |   |- ekk-lm3s9b96/
     |   |   `- 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
     |   |- fire-stm32v2/
     |   |   `- README.txt
     |   |- freedom-k64f/
     |   |   `- README.txt
     |   |- freedom-k66f/
     |   |   `- README.txt
     |   |- freedom-kl25z/
     |   |   `- README.txt
     |   |- freedom-kl26z/
     |   |   `- README.txt
     |   |- hymini-stm32v/
     |   |   |- RIDE/README.txt
     |   |   `- README.txt
     |   |- kwikstik-k40/
     |   |   `- README.txt
     |   |- launchxl-tms57004/
     |   |   `- README.txt
     |   |- lincoln60/
     |   |   `- README.txt
     |   |- lm3s6432-s2e/
     |   |   `- README.txt
     |   |- lm3s6965-ek/
     |   |   `- README.txt
     |   |- lm3s8962-ek/
     |   |   `- README.txt
     |   |- lpc4330-xplorer/
     |   |   `- README.txt
     |   |- lpc4337-ws/
     |   |   `- README.txt
     |   |- lpc4357-evb/
     |   |   `- README.txt
     |   |- lpc4370-link2/
     |   |   `- README.txt
     |   |- lpcxpresso-lpc1115/
     |   |   `- README.txt
     |   |- lpcxpresso-lpc1768/
     |   |   `- README.txt
     |   |- maple/
     |   |   `- README.txt
     |   |- mbed/
     |   |   `- README.txt
     |   |- mcu123-lpc214x/
     |   |   `- README.txt
     |   |- micropendous3/
     |   |   `- README.txt
     |   |- mikroe-stm32f4/
     |   |   `- README.txt
     |   |- mirtoo/
     |   |   `- README.txt
     |   |- misoc/
     |   |   `- README.txt
     |   |- moteino-mega/
     |   |   `- README.txt
     |   |- mx1ads/
     |   |   `- README.txt
     |   |- ne64badge/
     |   |   `- README.txt
     |   |- ntosd-dm320/
     |   |   |- doc/README.txt
     |   |   `- README.txt
     |   |- nucleo-144/
     |   |   `- README.txt
     |   |   `- README.txt
     |   |- nucleo-f072rb/
     |   |   `- README.txt
     |   |- nucleo-f303re/
     |   |   `- README.txt
     |   |- nucleo-f334r8/
     |   |   `- README.txt
     |   |- nucleo-f4x1re/
     |   |   `- README.txt
     |   |- nucleo-l476rg/
     |   |   `- README.txt
     |   |- nutiny-nuc120/
     |   |   `- README.txt
     |   |- olimex-efm32g880f129-stk/
     |   |   `- README.txt
     |   |- olimex-lpc1766stk/
     |   |   `- README.txt
     |   |- olimex-lpc2378/
     |   |   `- README.txt
     |   |- olimex-lpc-h3131/
     |   |   `- README.txt
     |   |- olimex-stm32-h405/
     |   |   `- README.txt
     |   |- olimex-stm32-h407/
     |   |   `- README.txt
     |   |- olimex-stm32-p107/
     |   |   `- README.txt
     |   |- olimex-stm32-p207/
     |   |   `- README.txt
     |   |- olimex-stm32-p407/
     |   |   `- README.txt
     |   |- olimex-strp711/
     |   |   `- README.txt
     |   |- open1788/
     |   |   `- README.txt
     |   |- p112/
     |   |   `- README.txt
     |   |- pcblogic-pic32mx/
     |   |   `- README.txt
     |   |- pcduino-a10/
     |   |   `- README.txt
     |   |- pic32mx-starterkit/
     |   |   `- README.txt
     |   |- pic32mx7mmb/
     |   |   `- README.txt
     |   |- pic32mz-starterkit/
     |   |   `- README.txt
     |   |- qemu-i486/
     |   |   `- README.txt
     |   |- sabre-6quad/
     |   |   `- README.txt
     |   |- sama5d2-xult/
     |   |   `- README.txt
     |   |- sama5d3x-ek/
     |   |   `- README.txt
     |   |- sama5d3-xplained/
     |   |   `- README.txt
     |   |- sama5d4-ek/
     |   |   `- README.txt
     |   |- samd20-xplained/
     |   |   `- README.txt
     |   |- samd21-xplained/
     |   |   `- README.txt
     |   |- saml21-xplained/
     |   |   `- README.txt
     |   |- sam3u-ek/
     |   |   `- README.txt
     |   |- sam4cmp-db
     |   |   `- README.txt
     |   |- sam4e-ek/
     |   |   `- README.txt
     |   |- sam4l-xplained/
     |   |   `- README.txt
     |   |- sam4s-xplained/
     |   |   `- README.txt
     |   |- sam4s-xplained-pro/
     |   |   `- README.txt
     |   |- same70-xplained/
     |   |   `- README.txt
     |   |- samv71-xult/
     |   |   `- README.txt
     |   |- shenzhou/
     |   |   `- README.txt
     |   |- sim/
     |   |   |- include/README.txt
     |   |   `- README.txt
     |   |- skp16c26/
     |   |   `- README.txt
     |   |- spark/
     |   |   `- README.txt
     |   |- stm3210e-eval/
     |   |   |- RIDE/README.txt
     |   |   `- README.txt
     |   |- stm3220g-eval/
     |   |   |- ide/nsh/uvision/README.txt
     |   |   |- ide/nsh/iar/README.txt
     |   |   `- README.txt
     |   |- stm3240g-eval/
     |   |   `- README.txt
     |   |- stm32_tiny/
     |   |   `- README.txt
     |   |- stm32f103-minumum/
     |   |   `- README.txt
     |   |- stm32f3discovery/
     |   |   `- README.txt
     |   |- stm32f4discovery/
     |   |   `- README.txt
     |   |- stm32f411e-disco/
     |   |   `- README.txt
     |   |- stm32f429i-disco/
     |   |   |- ide/ltcd/uvision/README.txt
     |   |   |- ltdc/README.txt
     |   |   `- README.txt
     |   |- stm32f746g-disco/
     |   |   `- README.txt
     |   |- stm32l476-mdk/
     |   |   `- README.txt
     |   |- stm32l476vg-disco/
     |   |   `- README.txt
     |   |- stm32ldiscovery/
     |   |   `- README.txt
     |   |- stm32vldiscovery/
     |   |   `- README.txt
     |   |- sure-pic32mx/
     |   |   `- README.txt
     |   |- teensy-2.0/
     |   |   `- README.txt
     |   |- teensy-3.1/
     |   |   `- README.txt
     |   |- teensy-lc/
     |   |   `- README.txt
     |   |- tm4c123g-launchpad/
     |   |   `- README.txt
     |   |- tm4c1294-launchpad/
     |   |   `- README.txt
     |   |- twr-k60n512/
     |   |   `- README.txt
     |   |- twr-k64f120m/
     |   |   `- README.txt
     |   |- "u-blox-c027/
     |   |   `- README.txt
     |   |- ubw32/
     |   |   `- README.txt
     |   |- us7032evb1/
     |   |   `- README.txt
     |   |- viewtool-stm32f107/
     |   |   `- README.txt
     |   |- xmc4500-relax/
     |   |   `- README.txt
     |   |- xtrs/
     |   |   `- README.txt
     |   |- z16f2800100zcog/
     |   |   |- ostest/README.txt
     |   |   |- pashello/README.txt
     |   |   `- README.txt
     |   |- z80sim/
     |   |   `- README.txt
     |   |- z8encore000zco/
     |   |   |- ostest/README.txt
     |   |   `- README.txt
     |   |- z8f64200100kit/
     |   |   |- ostest/README.txt
     |   |   `- README.txt
     |   |- zkit-arm-1769/
     |   |   `- README.txt
     |   |- zp214xpa/
     |   |   `- README.txt
     |   `- README.txt
     |- drivers/
     |   |- eeprom/
     |   |   `- README.txt
     |   |- lcd/
     |   |   |- README.txt
     |   |   `- pcf8574_lcd_backpack_readme.txt
     |   |- mtd/
     |   |   `- README.txt
     |   |- sensors/
     |   |   `- README.txt
     |   |- syslog/
     |   |   `- README.txt
     |   `- README.txt
     |- fs/
     |   |- binfs/
     |   |   `- README.txt
     |   |- mmap/
     |   |   `- README.txt
     |   |- nxffs/
     |   |   `- README.txt
     |   |- smartfs/
     |   |   `- README.txt
     |   |- procfs/
     |   |   `- README.txt
     |   `- unionfs/
     |       `- README.txt
     |- graphics/
     |   `- README.txt
     |- lib/
     |   `- README.txt
     |- libc/
     |   |- zoneinfo/README.txt
     |   `- README.txt
     |- libnx/
     |   `- README.txt
     |- libxx/
     |   `- README.txt
     |- mm/
     |   |- shm/
     |   |   `- README.txt
     |   `- README.txt
     |- net/
     |   |- sixlowpan/
     |   |   `- README.txt
     |   `- README.txt
     |- syscall/
     |   `- README.txt
     `- tools/
         `- README.txt

Below is a guide to the available README files in the semi-optional `apps/` source tree:

    apps/
     |- README.txt
     |- examples/
     |   |- bastest/README.txt
     |   |- json/README.txt
     |   |- pashello/README.txt
     |   `- README.txt
     |- gpsutils/
     |   `- "minmea/README.txt
     |- graphics/
     |   |- "tiff/README.txt
     |   `- "traveler/tools/tcledit/README.txt
     |- interpreters/
     |   |- bas/README.txt
     |   |- ficl/README.txt
     |   `- README.txt
     |- modbus/
     |   `- README.txt
     |- netutils/
     |   |   |- discover/README.txt
     |   |   |- ftpc/README.txt
     |   |   |- json/README.txt
     |   |   |- telnetd/README.txt
     |   `- README.txt
     |- nshlib/
     |   `- README.txt
     |- NxWidgets/
     |   `- README.txt
     `- system/
         |- cdcacm/README.txt
         |- i2c/README.txt
         |- inifile/README.txt
         |- install/README.txt
         |- nxplayer/README.txt
         |- symtab/README.txt
         |- usbmsc/README.txt
         `- zmodem/README.txt

Additional README.txt files in the other, related repositories:

    NxWidgets
     |- Doxygen
     |   `- README.txt
     |- tools
     |   `- README.txt
     |- UnitTests
     |   `- README.txt
     `- README.txt

    buildroot/
     `- README.txt

    tools/
     `- README.txt

    uClibc++/
     `- README.txt

    pascal/
     `- README