NuttX 6.7此版本已支持VFAT的长文件名和许多扩展到图形子系统。其他新的特性和错误修正。
New OS APIs: Add the standard sem_timedwait() interface. FAT ">File System: Adds (optional) support for VFAT long file names. USB: Now the
mass storage
device can be connected when needed and disconnected when not needed (or re-connected as a different kind of device). Touchscreen Support: Defined a new NuttX touchscreen interface. Added a driver for the TI TSC2007 touchscreen controller chip. NX Fonts: Add support for multiple fonts; developed a tool to convert open source fonts into NuttX format; Converted and installed nine new, high quality fontsets. NX Graphics: Add new NX APIs to support drawing of wide lines in any orientation. Added new low level routines to set individual pixel
more efficiently. Build system: Added a
export target that will bundle up all of the NuttX libraries, header files, and the startup object into an export-able tarball. This exported package can then be used in other environments for application development. LPC17xx: A CAN driver was contributed by Li Zhuoyi (Lzyy). STM32: New NX-related configurations to excercise text and graphic image displays. C
Library: Added a fixed precision atan2() math
function. Bugfixes: Serial RX overrun error, FAT upper/lower NT 8.3 name handling fixed. FAT directory allocation and
initialization bug. STM32 SDIO DMA race condition bug. eZ80 UART1 serial driver errors (Paul Osmialowski)
更多详细说明请参阅：http://sourceforge.net/projects/nuttx/files/nuttx/nuttx-6.7/
Nuttx 是一个实时嵌入式操作系统（RTOS），它有一个小巧是在微控制器的环境中使用。这是完全可扩展，从小型（8位）至中型嵌入式（32位）系统。它的目的还在于要完全符合标准，完全实时，并完全开放。
下载地址：http://sourceforge.net/projects/nuttx/files/nuttx/nuttx-6.7/nuttx-6.7.tar.gz/download