diff --git a/ChangeLog b/ChangeLog index 499c819507..3359e5e8fe 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1481,7 +1481,7 @@ * Added a new 'kill' command to NSH that will support sending signals to running NuttX tasks. -5.19 2011-xx-xx Gregory Nutt +5.19 2011-03-12 Gregory Nutt * arch/arm/stm32/stm32_idle.c -- During idle times, the STM32 now uses the WFI instruction to sleep in a reduced power mode until the next interrupt @@ -1503,7 +1503,7 @@ nsh> cat test.txt This is a test - * drivers/pipes/pipe_common.c: Driver open method eas not returning an EINTR + * drivers/pipes/pipe_common.c: Driver open method was not returning an EINTR error when it received a signal. Instead, it just re-started the wait. This makes it impossible to kill a background pipe operation from NSH. * include/stdint.h -- Correct some errors in conditional compilation (submitted @@ -1553,3 +1553,5 @@ * configs/olimex-lpc1766stk/slip-httpd - An example that uses SLIP to provide a serial-port based THTTPD web server. +5.20 2011-xx-xx Gregory Nutt + diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html index b75971671f..d7187464f9 100644 --- a/Documentation/NuttX.html +++ b/Documentation/NuttX.html @@ -807,41 +807,75 @@ -

nuttx-5.18 Release Notes: +

nuttx-5.19 Release Notes:

- The 65th release of NuttX, Version 5.18, was made on February 27, 2011 and is available for download from the + The 66th release of NuttX, Version 5.19, was made on March 12, 2011 and is available for download from the SourceForge website. The change log associated with the release is available here. Unreleased changes after this release are available in SVN. These unreleased changes are listed here.

- This is first release from the new NuttX SVN repository. - This release is made primarily to keep the release tarball in synchronization with SVN. - Many smaller changes have been made as identified in the ChangeLog. - Headlines would include: + This release includes several new features in various states of integration and maturity:

    -
  • - Incorporate several important uIP patches -- including the well known patch to handle missing SYNACK. +
  • - The Freescale mc8s12ne64 port is code complete but testing has not yet begun due to toolchain issues. - Added support for the Future Electronics Group NE64 Badge board. + 486SX QEMU port. + This port supports the Intel 486SX architecture using the QEMU simulator. + Initial functionality is in place a partially tested. + There are still some outstanding issues with timer interrupts. + A large part of the i486 logic was contributed by Biff of + Bifferboard fame.
  • - Added support for a new STM32 board, the ISOTEL NetClamps VSN V1.2 ready2go sensor network platform. - This board is based on a STM32F103RET6 and includes some interesting power saving/clock control extensions. + Platform specific application support. + A new apps/ directory appears in this port. + This apps/ directory provides a mechanism for applications using NuttX to have a highly customizable initialization process. + It supports a set of end-user applications than can be executed + (1) standalone so you can have a fully customizable application startup, or + (2) on top of NSH. + Think of it this way: + In a buckled-up embedded application, your end-user programs will probably have their own dedicated start-up logic. + But, during development, you might want to have you applications available and executable from the NSH command line. + This apps/ add-on (and NSH hooks) was contributed by Uros Platise to accomplish just that.
  • - USB host support expanded to handle vendor specific USB devices. + Custom NSH /etc/init.d/rcS File. + NSH was also extended to support application specific ROMFS /etc/init.d/rcS start-up scripts. + This feature, as well, as all of the above-mentioned apps/ directory support was contributed by Uros Platise
  • - Incorporated the LUFA HID parser. + Additional NSH improvements and bug fixes. See the Changelog for details.
  • - Various bugfix as detailed in the ChangeLog + SLIP. + This release also provides a new SLIP network driver. + This driver should support point-to-point network communications to a host using TCP/IP or UDP. + This driver is code complete, but not tested in this release. +
    • +
  • + RAMTROM FRAM Driver. + New RAMTRON FRAM driver (contributed by Uros Platise) +
    • +
  • + 16550 UART Driver. + New generic 16550 UART driver. +
    • +
  • + Cortex-M3 Power improvements. + The Cortex-M3 can now waits for Interrupt (WFI) in idle loop for reduced power consumption + (LPC17xx and STM32 only - contributed by Uros Platise)) +
    • +
  • + waitpid(). + New waitpid() system interface. +
    • +
  • + Bugfixes. + Additional bugfixes: pipes, stdint.h, STM32 SDIO and SPI drivers
@@ -2039,78 +2073,6 @@ Other memory: -
    -nuttx-5.18 2011-02-27 Gregory Nutt <spudmonkey@racsa.co.cr>
-
-    * Incorporate several uIP patches from http://gitweb.aeruder.net/?p=uip.git;a=summary.
-      - Lost SYNACK causes connection reset
-      - Fix missing UDP stats for sent/received packets
-      - Added support for Cygwin as development/test platform.
-    * configs/demo9s12ne64 - Integrate new buildroot-1.9 m8s12x toolchain.
-    * 'uname -o' is used throughout the build logic in bash scripts and also in
-      Make.defs files in order to distinguish between Cygwin and Linux.  However,
-      the -o option is not standard and is not supported under, for example, OS-X or
-      Solaris.  This was solved by changing all 'uname -o' references to the more
-      complex:  'uname -o 2>/dev/null || echo "Other"'
-    * drivers/usbhost/usbhost_enumerate.c -- Add logic to get the VID and PID.  This
-      is necessary in order to support vendor-specific USB devices.
-    * examplex/wlan, configs/olimex-lpc1766stk/wlan, drivers/usbhost/usbhost_rtl8187.c,
-      Add infrastructure to support RTL18187 wireless USB.
-    * configs/nucleus2g -- backed out USB host changes... wrong board.
-    * Renamed arc/hc/include/mc9s12ne64 and src/mc9s12ne64 -- m9s12.  That name is
-      shorter and more general.
-    * The NuttX repository has been converted to SVN and can now be found here
-      http://nuttx.svn.sourceforge.net/viewvc/nuttx/
-    * configs/mbed/hidkbd -- Added USB host support for the mbed LPC1768 board; add
-       a USB host HID keyboard configuraion.
-    * drivers/usbhost/hid_parser.c -- Leverages the LUFA HID parser written by
-      Dean Camera.
-    * examples/nsh -- Correct an usage of getopt(): If you stop calling getopt()
-      before all parameters are parsed, you can leave getopt() in a strange state.
-    * include/nuttx/fb.h -- Restore missing RGB type that was accidentally removed
-      when Nokia 6100 support was added.
-    * Rename arch/pjrc-8051 to arch/8051
-    * configs/ne64badge -- Add a configuration for the Future Electronics Group
-      NE64 Badge development board (Freescale MC9S12NE64)
-    * Changes contributed by Uros Platise:
-      - Add support for the STM32F103RET6
-      - configs/vsn - Support for the ISOTEL NetClamps VSN V1.2 ready2go sensor
-        network platform
-    * arch/hc, configs/ne64badge -- Development is complete for the Freescale
-      mc9s12ne64 on the Future Electronics Group NE64 /PoE Badge board.  Howeve,
-      this port remains untested until I figure out this BDM / Code Warrior
-      and paged build thing
-    * Added a new 'kill' command to NSH that will support sending signals to
-      running NuttX tasks.
-
-pascal-2.0 2009-12-21 Gregory Nutt <spudmonkey@racsa.co.cr>
-
-    * Updated to use standard C99 types in stdint.h and
-      stdbool.h.  This change was necessary for compatibility
-      with NuttX-5.0 (any beyond).
-
-buildroot-1.9 2011-02-10 <spudmonkey@racsa.co.cr>
-
-    * configs/arm926t-defconfig-4.3.3: update arm926t-defconfig-4.2.4
-    * configs/arm926t-defconfig-nxflat: NXFLAT-only configuration for
-      arm926
-    * toolchain/gdb/gdb.mk - Remove ncurses dependency from gdb_target target.
-    * toolchain/gdb/gdb.mk - Added --disable-werror to GDB configuration line.
-      GDB 6.8 won't build because the tarbal was released with -Werror enabled and
-      the build stops on the first warning.
-    * Add support for Freescale m9s12x using binutils 2.18 and gcc 3.3.6 and
-      patches available from http://www.msextra.com/tools courtesy of James
-      Cortina.  Add configs/m9x12x-defconfig-3.3.6.
-
- - - - - -
- Unreleased Changes -
- 
     nuttx-5.19 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
 
@@ -2134,7 +2096,7 @@ nuttx-5.19 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
         nsh> cat test.txt
         This is a test
 
-    * drivers/pipes/pipe_common.c --  Driver open method eas not returning an EINTR
+    * drivers/pipes/pipe_common.c --  Driver open method was not returning an EINTR
       error when it received a signal.  Instead, it just re-started the wait.  This
       makes it impossible to kill a background pipe operation from NSH.
     * include/stdint.h -- Correct some errors in conditional compilation (submitted
@@ -2184,6 +2146,37 @@ nuttx-5.19 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
     * configs/olimex-lpc1766stk/slip-httpd - An example that uses SLIP to
       provide a serial-port based THTTPD web server.
 
+pascal-2.0 2009-12-21 Gregory Nutt <spudmonkey@racsa.co.cr>
+
+    * Updated to use standard C99 types in stdint.h and
+      stdbool.h.  This change was necessary for compatibility
+      with NuttX-5.0 (any beyond).
+
+buildroot-1.9 2011-02-10 <spudmonkey@racsa.co.cr>
+
+    * configs/arm926t-defconfig-4.3.3: update arm926t-defconfig-4.2.4
+    * configs/arm926t-defconfig-nxflat: NXFLAT-only configuration for
+      arm926
+    * toolchain/gdb/gdb.mk - Remove ncurses dependency from gdb_target target.
+    * toolchain/gdb/gdb.mk - Added --disable-werror to GDB configuration line.
+      GDB 6.8 won't build because the tarbal was released with -Werror enabled and
+      the build stops on the first warning.
+    * Add support for Freescale m9s12x using binutils 2.18 and gcc 3.3.6 and
+      patches available from http://www.msextra.com/tools courtesy of James
+      Cortina.  Add configs/m9x12x-defconfig-3.3.6.
+
+ + + + + +
+ Unreleased Changes +
+ +
    +nuttx-5.20 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
+
 pascal-2.1 2011-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
 
 buildroot-1.10 2011-xx-xx <spudmonkey@racsa.co.cr>
diff --git a/ReleaseNotes b/ReleaseNotes
index 8976721308..a00ac19b5c 100644
--- a/ReleaseNotes
+++ b/ReleaseNotes
@@ -682,31 +682,31 @@ This is the 30th release of NuttX.  This release includes two partially complete
 ports, several new features, and a couple of important bug fixes.  The two partially
 completed ports are:
 
-	* The STMicro STR71x processor and configuration for the Olimex STR-P711
-	  board.
-	* The Hitachi SH-1 using the SH1_LCEVB1 (SH-1/US7032EVB1) board
+    * The STMicro STR71x processor and configuration for the Olimex STR-P711
+      board.
+    * The Hitachi SH-1 using the SH1_LCEVB1 (SH-1/US7032EVB1) board
 
 Progress on these ports is stalled (as detailed in the ChangeLog).
 
 The new features focus primarily on management of block devices and extensions of
 the NuttShell (NSH).  These include:
 
-	* A loop device that converts a file into a block device.
-	* A block to character (BCH) driver that  allow access a block device as
-	  if it were character device.
-	* Added strcasecmp() and strncasecmp() libc functions.
-	* Added the 'dd' and 'losetup' commands to NSH. These commands (along
-	  with mkfatfs and mount), give good managment of filesystems on the target.
+    * A loop device that converts a file into a block device.
+    * A block to character (BCH) driver that  allow access a block device as
+      if it were character device.
+    * Added strcasecmp() and strncasecmp() libc functions.
+    * Added the 'dd' and 'losetup' commands to NSH. These commands (along
+      with mkfatfs and mount), give good managment of filesystems on the target.
 
 Several bugs were fixed, the most important of which are:
 
-	* Fixed a race condition workaround delay in LPC214X SPI logic.  This was also
-	  the cause of some bad MMC/SD performance on that platform.
-	* Fixed a recently introduced FAT file system problem: It would mount a (invalid)
-	  FAT file system even if the medium is not formatted!
-	* Corrected two iother important errors in the FAT lseek implementation:
-	  (1) the sectors-per-cluster value was being reset to "1" and (2) important
-	  lseek logic was omitted when the seek position was zero.
+    * Fixed a race condition workaround delay in LPC214X SPI logic.  This was also
+      the cause of some bad MMC/SD performance on that platform.
+    * Fixed a recently introduced FAT file system problem: It would mount a (invalid)
+      FAT file system even if the medium is not formatted!
+    * Corrected two iother important errors in the FAT lseek implementation:
+      (1) the sectors-per-cluster value was being reset to "1" and (2) important
+      lseek logic was omitted when the seek position was zero.
 
 The FAT filesystem has had many bugs fixed in it and, I think, is now maturing
 and becoming stable.
@@ -722,28 +722,28 @@ nuttx-0.3.19
 
 This is the 31st release of NuttX.  This release includes the following new feature:
 
-	* Add poll() and select() APIs that may be used to monitor for data
-	  availability on character devices or TCP/IP sockets.
-	* Implemented support TCP/IP connection backlog.  This allows select to wake-up
-	  on new connections to a listener socket.
-	* Added definition of a framebuffer driver and implement framebuffer drivers
-	  for the simulated platform and the TI DM320 (untested as of the inital check-in).
-	* Partially developed a graphics framework based on the framebuffer drivers,
-	  however, this will not be ready for use for a few more release.  Currently
-	  this includes only a few color conversion routines and some rasteizing functions.
-	  A tiny windowing system is under development but not ready for check-in yet.
-	* Added support for fixed precision math.
-	* Added support for outgoing multicast packets.
+    * Add poll() and select() APIs that may be used to monitor for data
+      availability on character devices or TCP/IP sockets.
+    * Implemented support TCP/IP connection backlog.  This allows select to wake-up
+      on new connections to a listener socket.
+    * Added definition of a framebuffer driver and implement framebuffer drivers
+      for the simulated platform and the TI DM320 (untested as of the inital check-in).
+    * Partially developed a graphics framework based on the framebuffer drivers,
+      however, this will not be ready for use for a few more release.  Currently
+      this includes only a few color conversion routines and some rasteizing functions.
+      A tiny windowing system is under development but not ready for check-in yet.
+    * Added support for fixed precision math.
+    * Added support for outgoing multicast packets.
 
 Several bugs were fixed, the most important of which are:
 
-	* Fixed an important bug in the TCP/IP buffering logic.  When TCP/IP read-ahead is enabled
-	  and not recv() is in-place when a TCP/IP packet is received, the packet is placed into
-	  a read-ahead buffer.  However, the old contents of the read-ahead buffer were not being
-	  cleared and old data would contaminate the newly received buffer.
-	* Changed the behavior of the serial driver read.  It now returns data as it
-	  is available rather than waiting for the full requested read size.  This
-	  makes functions like fgetc() work much more smoothly.
+    * Fixed an important bug in the TCP/IP buffering logic.  When TCP/IP read-ahead is enabled
+      and not recv() is in-place when a TCP/IP packet is received, the packet is placed into
+      a read-ahead buffer.  However, the old contents of the read-ahead buffer were not being
+      cleared and old data would contaminate the newly received buffer.
+    * Changed the behavior of the serial driver read.  It now returns data as it
+      is available rather than waiting for the full requested read size.  This
+      makes functions like fgetc() work much more smoothly.
 
 These changes were verified only on the Neuros OSD (ARM9) using a Linux development
 environment. Please report any errors to me.
@@ -778,8 +778,8 @@ ZDS-II based targets.  All ZDS-II targets now build correctly (but have not been
 In addition to platform-specific build failures,  release also adds the following features
 which were not tested as of the time of the release:
 
-	* Board support fot the ZiLog ez80Acclaim! ez80f910200zco Development Kit
-	* ZiLOG eZ80F91 EMAC driver
+    * Board support fot the ZiLog ez80Acclaim! ez80f910200zco Development Kit
+    * ZiLOG eZ80F91 EMAC driver
 
 These changes were verified only on the NuttX simulation platform. Please report any errors
 to me.
@@ -792,17 +792,17 @@ nuttx-0.4.2
 This is the 34th release of NuttX.  This release adds no new OS features but does include
 support for two new architectures:
 
-	* ez80Acclaim!  Basic support has been integrated and verified for the ez80f910200zcog-d
-	  board (eZ80F91-based).  That basic support includes timer interrupts and serial
-	  console.  Ongoing work includes an EMAC driver that should be integrated for
-	  the next release nuttx-0.4.2.
+    * ez80Acclaim!  Basic support has been integrated and verified for the ez80f910200zcog-d
+      board (eZ80F91-based).  That basic support includes timer interrupts and serial
+      console.  Ongoing work includes an EMAC driver that should be integrated for
+      the next release nuttx-0.4.2.
 
-	  eZ80Acclaim! support has been in the code base for some time, but has only just
-	  been integrated due to toolchain issues.
+      eZ80Acclaim! support has been in the code base for some time, but has only just
+      been integrated due to toolchain issues.
 
-	* Renesas M16C/20.  Support for the Renesas SKP16C20 board has been included in
-	  the NuttX source tree.  However, as the eZ80Acclaim!, testing and integration
-	  of that port is stalled due to toolchain issues.
+    * Renesas M16C/20.  Support for the Renesas SKP16C20 board has been included in
+      the NuttX source tree.  However, as the eZ80Acclaim!, testing and integration
+      of that port is stalled due to toolchain issues.
 
 These changes were verified only on the ZiLOG eZ80910200zcog-d board. Please report any errors
 to me.
@@ -815,13 +815,13 @@ nuttx-0.4.3
 This is the 35th release of NuttX.  This release one important new OS feature and corrects
 and extends the eZ80 port:
 
-	* Priority Inheritance.  The basic NuttX waiting logic was extended to
-	  support priority inheritance. See the NuttX User Manual for further
-	  information: http://www.nuttx.org/NuttxUserGuide.html#priorityinheritance.
-	* ez80Acclaim! Corrected several critical, show-stopping bugs on that
-	  platform including: Errors in the serial driver intrrupts and an error
-	  in the eZ80 table,.
-	* eZ80Acclaim!: Completed integration of the eZ80F91 EMAC driver.
+    * Priority Inheritance.  The basic NuttX waiting logic was extended to
+      support priority inheritance. See the NuttX User Manual for further
+      information: http://www.nuttx.org/NuttxUserGuide.html#priorityinheritance.
+    * ez80Acclaim! Corrected several critical, show-stopping bugs on that
+      platform including: Errors in the serial driver intrrupts and an error
+      in the eZ80 table,.
+    * eZ80Acclaim!: Completed integration of the eZ80F91 EMAC driver.
 
 These changes were verified only on the ZiLOG eZ80910200zcog-d board and on Cygwin-based
 simulation platform in various configurations. Please report any errors to me.
@@ -834,11 +834,11 @@ nuttx-0.4.4
 This is the 36th release of NuttX.  This release focuses on bugfixes and extending
 and verifying certain networking features.
 
-	* Important bugs were fixed in NSH, UDP checksum calculation, UDP bind()
-	  behavior for port==0, the eZ80Acclaim! EMAC driver, Z80 interrupt handling,
-	  and in the C libraries.
-	* Testing was extended to further verify the tiny webserver, DHCPD, wget(),
-	  and sendmail.
+    * Important bugs were fixed in NSH, UDP checksum calculation, UDP bind()
+      behavior for port==0, the eZ80Acclaim! EMAC driver, Z80 interrupt handling,
+      and in the C libraries.
+    * Testing was extended to further verify the tiny webserver, DHCPD, wget(),
+      and sendmail.
 
 See the Changelog for a detailed description of these changes.
 
@@ -852,14 +852,14 @@ nuttx-0.4.5
 
 This is the 37th release of NuttX.  This release focuses on a few new features.
 
-	* The basic port for the FreeScale ARM920T i.MX1 processor on the
-	  Freescale MX1ADS board.  Coding is complete for this port, but it is
-	  has not yet fully integrated
-	* Extended I2C and SPI interface definitions
-	* Add basic support for C++ applications.  Very simple C++ applications
-	  can now be built against NuttX without any external libraries.  At
-	  present, only the most primitive C++ programs are supported, but it
-	  is hoped that this support will be extended in future releases.
+    * The basic port for the FreeScale ARM920T i.MX1 processor on the
+      Freescale MX1ADS board.  Coding is complete for this port, but it is
+      has not yet fully integrated
+    * Extended I2C and SPI interface definitions
+    * Add basic support for C++ applications.  Very simple C++ applications
+      can now be built against NuttX without any external libraries.  At
+      present, only the most primitive C++ programs are supported, but it
+      is hoped that this support will be extended in future releases.
 
 See the Changelog for a detailed description of these changes.
 
@@ -928,12 +928,12 @@ nuttx-0.4.9
 
 This is the 41st release of NuttX.  This release adds:
 
-	* Support for a new binary format call NXFLAT that can be used to 
-	  execute separately linked programs in place in a file system.
-	  See http://www.nuttx.org/NuttXNxFlat.html.
+    * Support for a new binary format call NXFLAT that can be used to 
+      execute separately linked programs in place in a file system.
+      See http://www.nuttx.org/NuttXNxFlat.html.
 
-	* Several important bugs were files related to networking and ROMFS
-	  (see the ChangeLog for a complete list).
+    * Several important bugs were files related to networking and ROMFS
+      (see the ChangeLog for a complete list).
 
 This tarball contains a complete CVS snapshot from June 26, 2009.
 
@@ -946,14 +946,14 @@ the 0.4.10 release, that port is still not fully complete and functional.
 However, numerous related bug-fixes and functional additions for THTTPD were
 added:
 
-	* Several new standard C-library functions (fileno, strstr, strpbrk, fcntl).
-	* Improved and extended timing APIs (mktime, gmtime, gmtime_r, gettimeofday,
-	  localtime, localtime_r, and strftime)
-	* Networking enhancements: recvfrom and accept now work with non-blocking
-	  sockets.
-	* NXFLAT extensions (exec)
-	* Pattern matching logic.
-	* And miscellaneous bug fixes (see the ChangeLog for details).
+    * Several new standard C-library functions (fileno, strstr, strpbrk, fcntl).
+    * Improved and extended timing APIs (mktime, gmtime, gmtime_r, gettimeofday,
+      localtime, localtime_r, and strftime)
+    * Networking enhancements: recvfrom and accept now work with non-blocking
+      sockets.
+    * NXFLAT extensions (exec)
+    * Pattern matching logic.
+    * And miscellaneous bug fixes (see the ChangeLog for details).
 
 This tarball contains a complete CVS snapshot from August 8, 2009.
 
@@ -965,9 +965,9 @@ verified port of Jeff Poskanzer's THTTPD HTTP server (see http://acme.com/softwa
 Many of the key features of THTTPD have been tested on the Micromint Eagle-100
 development board (Cortex-M3).  These tests verify:
 
-	* Serving of files from any file system
-	* Execution of CGI executable.  This release supports execution of
-	  NXFLAT executables on a ROMFS file system (http://www.nuttx.org/NuttXNxFlat.html)
+    * Serving of files from any file system
+    * Execution of CGI executable.  This release supports execution of
+      NXFLAT executables on a ROMFS file system (http://www.nuttx.org/NuttXNxFlat.html)
 
 A standard CGI interface is used:  Information is pasted to the CGI program via POST
 commands and via environment variables.  CGI socket I/O is redirected to stdin and stdout
@@ -989,12 +989,12 @@ This is the 44th release of NuttX.  This release adds basic support for the STMi
 Cortex-M3 MCU.  The specific port is to the STMicro STM3210E-EVAL development board based
 around the STM32F103ZET6 MCU.  Some highlights of this port:
 
-	* This basic port includes boot-up logic, interrupt driven serial console, and system
-	  timer interrupts.
-	* Includes a basic STMicro RIDE7 project that can be used to perform basic STM32
-	  board bring-up (due to RIDE7 size limitations, it cannot be used for the full NuttX
-	  bring-up).
-	* Working, Tested Configurations:  the NuttX OS test and the NuttShell (NSH) example.
+    * This basic port includes boot-up logic, interrupt driven serial console, and system
+      timer interrupts.
+    * Includes a basic STMicro RIDE7 project that can be used to perform basic STM32
+      board bring-up (due to RIDE7 size limitations, it cannot be used for the full NuttX
+      bring-up).
+    * Working, Tested Configurations:  the NuttX OS test and the NuttShell (NSH) example.
 
 This basic STM32 port will be extended in the 0.4.13 NuttX release.  Functionality needed
 for complete STM32 support includes:  USB device driver, LCD driver and NX bringup on the
@@ -1010,23 +1010,23 @@ This is the 45th release of NuttX.  The release extends the support for the STMi
 STM32 microcontroller.  Minimal support for the STM3210E-EVAL development board based
 around the STM32F103ZET6 MCU was released in NuttX-0.4.12.  This release adds:
 
-	* A simple interface definition to support some FLASH, EEPROM, NVRAM, etc. devices.
-	* Verified SPI operation using driver for SPI based FLASH parts M25P64 and M25P128.
-	* Improved Cortex-M3 context switching.  This should improve context switching
-	  performance be 2x in certain cases.
-	* Added a USB device-side driver for the STM32.  This is an early release of a
-	  very complex driver; some bugs are expected.  
-	* The USB driver has been verified against the USB serial device class driver.
-	  There is at least one known outstanding issue (see the full bug description in
-	  the TODO list).
+    * A simple interface definition to support some FLASH, EEPROM, NVRAM, etc. devices.
+    * Verified SPI operation using driver for SPI based FLASH parts M25P64 and M25P128.
+    * Improved Cortex-M3 context switching.  This should improve context switching
+      performance be 2x in certain cases.
+    * Added a USB device-side driver for the STM32.  This is an early release of a
+      very complex driver; some bugs are expected.  
+    * The USB driver has been verified against the USB serial device class driver.
+      There is at least one known outstanding issue (see the full bug description in
+      the TODO list).
 
 This release also corrects some important bugs in the early STM32 release:
 
-	* Fixed several errors the prevented operation of NuttX on an STM32 development
-	  board using USART2 as the serial console.
-	* Fixed and optimization-dependent race condition in the clock initialization.
-	* Fixed a critical bug in the interrupt control logic that could cause interrupt
-	  operations to failed used for interrupts in a certain range.
+    * Fixed several errors the prevented operation of NuttX on an STM32 development
+      board using USART2 as the serial console.
+    * Fixed and optimization-dependent race condition in the clock initialization.
+    * Fixed a critical bug in the interrupt control logic that could cause interrupt
+      operations to failed used for interrupts in a certain range.
 
 This tarball contains a complete CVS snapshot from November 4, 2009
 
@@ -1040,28 +1040,28 @@ to include initial USB support.  This completes the STM32F103ZET6 and adds:
 
 New Generic RTOS Features:
 
-	* Added generic support that can be included in any block driver to provide
-	  read-ahead buffering and write buffering for improved driver performance.
-	* Added a generic worker thread that can used to defer processing from an
-	  interrupt to a task.
-	* Defined a generic SD/SDIO interface can can be bound to a MMC/SD or SDIO
-	  driver to orovide SDIO support.
-	* Implemented a an SDIO-based MMC/SD driver using this new SDIO interface
+    * Added generic support that can be included in any block driver to provide
+      read-ahead buffering and write buffering for improved driver performance.
+    * Added a generic worker thread that can used to defer processing from an
+      interrupt to a task.
+    * Defined a generic SD/SDIO interface can can be bound to a MMC/SD or SDIO
+      driver to orovide SDIO support.
+    * Implemented a an SDIO-based MMC/SD driver using this new SDIO interface
 
 New STM32 Features:
 
-	* Add support to configure an STM32 input GPIO to generate an EXTI interrupt.
-	* Added support for buttons on the STM3210E-EVAL board.
-	* Implemented an STM32 version of the common the SDIO interface.
-	* Added a configuration to exercise the STM32 with the USB mass storage
-	  device class example.
+    * Add support to configure an STM32 input GPIO to generate an EXTI interrupt.
+    * Added support for buttons on the STM3210E-EVAL board.
+    * Implemented an STM32 version of the common the SDIO interface.
+    * Added a configuration to exercise the STM32 with the USB mass storage
+      device class example.
 
 This release also corrects some important bugs in the early STM32 release:
 
-	* Correct error handling in the mount() logic.
-	* Fixed several STM32 DMA-related issues. Integrated and debugged STM32 DMA
-	  functionality that was added in 0.4.12.
-	* Fixed several bugs in the STM32 USB device-side driver.
+    * Correct error handling in the mount() logic.
+    * Fixed several STM32 DMA-related issues. Integrated and debugged STM32 DMA
+      functionality that was added in 0.4.12.
+    * Fixed several bugs in the STM32 USB device-side driver.
 
 NOTE:  This version, 4.14, is equivalent to what would have been called 0.4.14
 to follow 0.4.13.  The zero has been eliminated from the front of the version
@@ -1437,62 +1437,62 @@ nuttx-5.12
 
 This is the 59th release of NuttX.  This is a critical bugfix release.
 
-	* Fixed an important error in the signal trampoline logic.  Essentially,
-	  interrupts are re-enabled while the signal handler executes, but the
-	  logic to re-disable the interrupts before returning from the signal
-	  handler trampoline was missing.  Under certain circumstances, this
-	  can cause stack corruption.  This was discovered by David Hewson on
-	  an ARM9 platform, but since the code has been leveraged, the bug has
-	  been propogated from ARM to Cortex-M3, AVR32, M16C, SH1, ZNEO, eZ80,
-	  Z8, and Z80 -- almost every architecture. The correction has been
-	  incorporated for all architectures but only verified on a few.
+    * Fixed an important error in the signal trampoline logic.  Essentially,
+      interrupts are re-enabled while the signal handler executes, but the
+      logic to re-disable the interrupts before returning from the signal
+      handler trampoline was missing.  Under certain circumstances, this
+      can cause stack corruption.  This was discovered by David Hewson on
+      an ARM9 platform, but since the code has been leveraged, the bug has
+      been propogated from ARM to Cortex-M3, AVR32, M16C, SH1, ZNEO, eZ80,
+      Z8, and Z80 -- almost every architecture. The correction has been
+      incorporated for all architectures but only verified on a few.
 
 Other notable changes in NuttX-5.12:
 
-	* A complete port for the AVR32 (AT32UC3B0256) is incorporated in the
-	  source tree.  Testing of this port is underway now.  This release
-	  was made before verifying this port in order to get the important
-	  bugfix in place.
-	* Other miscellaneous bugfix and enhancements as noted in the ChangeLog.
+    * A complete port for the AVR32 (AT32UC3B0256) is incorporated in the
+      source tree.  Testing of this port is underway now.  This release
+      was made before verifying this port in order to get the important
+      bugfix in place.
+    * Other miscellaneous bugfix and enhancements as noted in the ChangeLog.
 
 nuttx-5.13
 ^^^^^^^^^^
 
 This is the 60th release of NuttX.  Headlines for this release include:
 
-	* AVR32, www.mcuzone.com AVR32DEV1
+    * AVR32, www.mcuzone.com AVR32DEV1
 
-	  The port for the www.mcuzone.com AVRDEV1 board based on the Atmel
-	  AT32UC3B0256 MCU was (almost) fully integrated. The port now
-	  successfully passes the NuttX OS test (examples/ostest).  A
+      The port for the www.mcuzone.com AVRDEV1 board based on the Atmel
+      AT32UC3B0256 MCU was (almost) fully integrated. The port now
+      successfully passes the NuttX OS test (examples/ostest).  A
       NuttShell (NSH) configuration is in place (see the NSH User Guide at
-	  http://www.nuttx.org/NuttShell.html). Testing of that NSH
-	  configuration, however, has been postponed (because it got bumped
-	  by the Olimex LPC1766-STK port -- see below)
+      http://www.nuttx.org/NuttShell.html). Testing of that NSH
+      configuration, however, has been postponed (because it got bumped
+      by the Olimex LPC1766-STK port -- see below)
 
-	  Current Status: I think I have a hardware problem with my serial
-	  port setup. There is a good chance that the NSH port is complete
-	  and functional, but I am not yet able to demonstrate that. At
-	  present, I get nothing coming in the serial RXD line (probably
-	  because the pins are configured wrong or I have the MAX232
-	  connected wrong).
+      Current Status: I think I have a hardware problem with my serial
+      port setup. There is a good chance that the NSH port is complete
+      and functional, but I am not yet able to demonstrate that. At
+      present, I get nothing coming in the serial RXD line (probably
+      because the pins are configured wrong or I have the MAX232
+      connected wrong).
 
       A complete port will include drivers for additional AVR32 UC3
-	  devices -- like SPI and USB --- and will be available in a later
-	  release, time permitting.
+      devices -- like SPI and USB --- and will be available in a later
+      release, time permitting.
 
-	* LPC1766, Olimex LPC1766-STK
+    * LPC1766, Olimex LPC1766-STK
 
-	  Support for the Olimex-LPC1766 is newly added to NuttX and is
-	  still undergoing development, test, and integration. Verified
-	  configurations for the NuttX OS test and for the NuttShell (NSH,
-	  see the NSH User Guide at http://www.nuttx.org/NuttShell.html.
-	  Additional USB configurations are in the release as well, but
-	  they have not yet been verified.  Goals for NuttX-5.14 include:
-	  (1) An Ethernet driver, (2) Verified USB support, and (3) SD
-	  card support.
+      Support for the Olimex-LPC1766 is newly added to NuttX and is
+      still undergoing development, test, and integration. Verified
+      configurations for the NuttX OS test and for the NuttShell (NSH,
+      see the NSH User Guide at http://www.nuttx.org/NuttShell.html.
+      Additional USB configurations are in the release as well, but
+      they have not yet been verified.  Goals for NuttX-5.14 include:
+      (1) An Ethernet driver, (2) Verified USB support, and (3) SD
+      card support.
 
-	* Additional changes and bugfixes as detailed in the ChangeLog.
+    * Additional changes and bugfixes as detailed in the ChangeLog.
 
 nuttx-5.14
 ^^^^^^^^^^
@@ -1503,26 +1503,26 @@ the NXP LPC1766.
 
 Important bugfixes include:
 
-	* Cortex-M3 Hard Fault.  Fixed a hard fault problem that can occur if certain
-	  types of interrupts are pending at the time another interrupt returns. This
-	  problem has only been observed on the LPC1766 (returning from a SYSTICK
-	  interrupt with a pending Ethernet interrupt).  However, it is assumed that
-	  all Cortex-M3 ports could have this as a latent bug.
+    * Cortex-M3 Hard Fault.  Fixed a hard fault problem that can occur if certain
+      types of interrupts are pending at the time another interrupt returns. This
+      problem has only been observed on the LPC1766 (returning from a SYSTICK
+      interrupt with a pending Ethernet interrupt).  However, it is assumed that
+      all Cortex-M3 ports could have this as a latent bug.
 
-	* TCP/IP Sequence Number Bug.  Corrected errors some important logic in the way
-	  that sequence numbers are managed when send() sends out packets before a
-	  previous packet has been acknowledged.  Some of that send() logic was incompatible
-	  with logic in the uIP layer.  Errors seen include: (1) The final final packet
-	  in a sequence of packets might be too large!  In the THTTPD example, this
-	  might leave some garbage at the bottom of the display. Or (2) send() might hang
-	  with outstanding, unacknowledged data (and with no re-transmission requests).
-	  This was due to differences in sequence number handling in send() and in
-	  uip_tcpinput.c; uip_tcpinput.c thought (incorrectly) that all of the bytes
-	  were acknowledged; send.c knew that they were not.
+    * TCP/IP Sequence Number Bug.  Corrected errors some important logic in the way
+      that sequence numbers are managed when send() sends out packets before a
+      previous packet has been acknowledged.  Some of that send() logic was incompatible
+      with logic in the uIP layer.  Errors seen include: (1) The final final packet
+      in a sequence of packets might be too large!  In the THTTPD example, this
+      might leave some garbage at the bottom of the display. Or (2) send() might hang
+      with outstanding, unacknowledged data (and with no re-transmission requests).
+      This was due to differences in sequence number handling in send() and in
+      uip_tcpinput.c; uip_tcpinput.c thought (incorrectly) that all of the bytes
+      were acknowledged; send.c knew that they were not.
 
-	* One-Shot POSIX Timer Bug. Fixed an error in set-up of a one-shot POSIX timer.
-	  It was using the repititive timer value (which is zero in the one-shot case),
-	  always resulting in a 10Ms timer!  Found and fixed by Wilton Tong.
+    * One-Shot POSIX Timer Bug. Fixed an error in set-up of a one-shot POSIX timer.
+      It was using the repititive timer value (which is zero in the one-shot case),
+      always resulting in a 10Ms timer!  Found and fixed by Wilton Tong.
 
 Additional support has been included for the Olimex-LPC1766.  Support for that board
 was added to NuttX 5.13.  This release extends that support with an Ethernet driver.
@@ -1542,36 +1542,36 @@ for the Olimex LPC1766-STK board.
 
 Important bugfxes included:
 
-	* Additional fixes needed with the TCP sequence number problem "fixed" in
-	  nuttx-5.14.
-	* In the send() logic, now checks if the destination IP address is in the
-	  ARP table before sending the packet; an ARP request will go out instead.
-	  This improves behavior, for example, on the first on the first GET request
-	  from a browser
-	* All USB class drivers need to call DEV_CONNECT() when they are ready to
-	  be enumerated.  That is, (1) initially when bound to the USB driver, and
-	  (2) after a USB reset.
-	* The SPI_SETBITS macro was calling the SPI setmode method.
-	* And several other bug fixes of lower criticality (see the ChangeLog for
-	  details).
+    * Additional fixes needed with the TCP sequence number problem "fixed" in
+      nuttx-5.14.
+    * In the send() logic, now checks if the destination IP address is in the
+      ARP table before sending the packet; an ARP request will go out instead.
+      This improves behavior, for example, on the first on the first GET request
+      from a browser
+    * All USB class drivers need to call DEV_CONNECT() when they are ready to
+      be enumerated.  That is, (1) initially when bound to the USB driver, and
+      (2) after a USB reset.
+    * The SPI_SETBITS macro was calling the SPI setmode method.
+    * And several other bug fixes of lower criticality (see the ChangeLog for
+      details).
 
 And feature enhancements:
 
-	* The LPC176x Ethernet driver was using all of AHB SRAM Bank0 for Ethernet
-	  packet buffers (16Kb).  An option was added to limit the amount of SRAM
-	  used for packet buffering and to re-use any extra Bank0 memory for heap.
-	* Enabled networking and SD/MMC card support in the Olimex LPC1766-STK
-	  NuttShell (NSH) configuration.
-	* The LPC176x USB driver is now fully fully functional.
-	* Added an optional cmddata() method to the SPI interface.  Some devices
-	  require an additional out-of-band bit to specify if the next word sent
-	  to the device is a command or data. The cmddata method provides selection
-	  of command or data.
-	* A driver for the Nokia 6100 LCD (with either the Phillips PCF8833 LCD
-	  controller and for the Epson S1D15G10 LCD controller) and an NX graphics
-	  configuration for the Olimex LPC1766-STK have been added.  However,
-	  neither the LCD driver nor the NX configuration have been verified
-	  as of the this release.
+    * The LPC176x Ethernet driver was using all of AHB SRAM Bank0 for Ethernet
+      packet buffers (16Kb).  An option was added to limit the amount of SRAM
+      used for packet buffering and to re-use any extra Bank0 memory for heap.
+    * Enabled networking and SD/MMC card support in the Olimex LPC1766-STK
+      NuttShell (NSH) configuration.
+    * The LPC176x USB driver is now fully fully functional.
+    * Added an optional cmddata() method to the SPI interface.  Some devices
+      require an additional out-of-band bit to specify if the next word sent
+      to the device is a command or data. The cmddata method provides selection
+      of command or data.
+    * A driver for the Nokia 6100 LCD (with either the Phillips PCF8833 LCD
+      controller and for the Epson S1D15G10 LCD controller) and an NX graphics
+      configuration for the Olimex LPC1766-STK have been added.  However,
+      neither the LCD driver nor the NX configuration have been verified
+      as of the this release.
 
 nuttx-5.16
 ^^^^^^^^^^
@@ -1694,3 +1694,39 @@ identified in the ChangeLog.  Headlines would include:
     * Incorporated the LUFA HID parser.
     * Various bugfix as detailed in the ChangeLog
 
+nuttx-5.18
+^^^^^^^^^^
+
+The 66th release of NuttX, Version 5.19, was made on March 12, 2011 and is
+available for download from the SourceForge website.  This release includes
+several new features in various states of integration and maturity:
+
+    * 486SX QEMU port.  This port supports the Intel 486SX architecture using
+      the QEMU simulator.  Initial functionality is in place a partially
+      tested.  There are still some outstanding issues with timer interrupts.
+    * Platform specific application support.  A new apps/ directory appears in
+      this port.  This apps/ directory provides a mechanism for applications
+      using NuttX to have a highly customizable initialization process. It
+      supports a set of end-user applications than can be executed (1) standalone
+      so you can have a fully customizable application startup, or (2) on top of
+      NSH.  Think of it this way:  In a buckled-up embedded application, your
+      end-user programs will probably have their own dedicated start-up logic.
+      But, during development, you might want to have you applications
+      available and executable from the NSH command line.  This apps/ add-on
+      (and NSH hooks) was contributed by Uros to accomplish just that.
+    * NSH was also extended to support application specific ROMFS
+      /etc/init.d/rcS start-up scripts.  This feature, as well, as all of the
+      above-mentioned apps/ directory support was contributed by Uros Platise
+    * Additional NSH improvements and bug fixes.  See the Changelog for
+      details.
+    * This release also provides a new SLIP network driver.  This driver
+      should support point-to-point network communications to a host using
+      TCP/IP or UDP.  This driver is code complete, but not tested in this
+      release.
+    * New RAMTRON FRAM driver (contributed by Uros Platise)
+    * New generic 16550 UART driver.
+    * Cortex-M3 Power improvements: Waits for Interrupt (WFI) in idle loop
+      for reduced power consumption (LPC17xx and STM32 only - contributed by
+      Uros Platise))
+    * New waitpid() system interface.
+    * Additional bugfixes: pipes, stdint.h, STM32 SDIO and SPI drivers
diff --git a/sched/os_start.c b/sched/os_start.c
index 9b5fd4938d..5b5e659e71 100644
--- a/sched/os_start.c
+++ b/sched/os_start.c
@@ -163,12 +163,6 @@ volatile pid_t g_lastpid;
 
 pidhash_t g_pidhash[CONFIG_MAX_TASKS];
 
-/* The task ID of the worker thread */
-
-#ifdef CONFIG_SCHED_WORKQUEUE
-pid_t g_worker;
-#endif
-
 /* This is a table of task lists.  This table is indexed by
  * the task state enumeration type (tstate_t) and provides
  * a pointer to the associated static task list (if there
diff --git a/sched/work_internal.h b/sched/work_internal.h
index a25c9615bc..56f5e5d56e 100755
--- a/sched/work_internal.h
+++ b/sched/work_internal.h
@@ -1,7 +1,7 @@
 /****************************************************************************
  * sched/work_internal.h
  *
- *   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009-2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt 
  *
  * Redistribution and use in source and binary forms, with or without
@@ -81,6 +81,10 @@
 
 extern struct dq_queue_s g_work;
 
+/* The task ID of the worker thread */
+
+extern pid_t g_worker;
+
 /****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/
diff --git a/sched/work_thread.c b/sched/work_thread.c
index bbf6a3bb10..49542b5324 100755
--- a/sched/work_thread.c
+++ b/sched/work_thread.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * sched/work_thread.c
  *
- *   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009-2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt 
  *
  * Redistribution and use in source and binary forms, with or without
@@ -71,6 +71,12 @@
 
 struct dq_queue_s g_work;
 
+/* The task ID of the worker thread */
+
+#ifdef CONFIG_SCHED_WORKQUEUE
+pid_t g_worker;
+#endif
+
 /****************************************************************************
  * Private Variables
  ****************************************************************************/
diff --git a/tools/zipme.sh b/tools/zipme.sh
index edc0e4251c..a80ccd5e7d 100755
--- a/tools/zipme.sh
+++ b/tools/zipme.sh
@@ -32,7 +32,7 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-#set -x
+set -x
 
 WD=`pwd`
 VERSION=$1
@@ -43,43 +43,53 @@ ZIP=gzip
 # Make sure we know what is going on
 
 if [ -z ${VERSION} ] ; then
-   echo "You must supply a version like xx.yy.zz as a parameter"
+   echo "You must supply a version like xx.yy as a parameter"
    exit 1;
 fi
 
 # Find the directory we were executed from and were we expect to
-# see the directory to tar up
+# see the directories to tar up
 
 MYNAME=`basename $0`
 
 if [ -x ${WD}/${MYNAME} ] ; then
-   NUTTX=`dirname ${WD}`
+   PROJECTS="${WD}/../../.."
 else
    if [ -x ${WD}/tools/${MYNAME} ] ; then
-     NUTTX=${WD}
+     PROJECTS="${WD}/../.."
    else
-     echo "You must cd into the NUTTX directory to execute this script."
-     exit 1
+     if [ -x ${WD}/nuttx/tools/${MYNAME} ] ; then
+       PROJECTS="${WD}/.."
+     else
+       echo "You must cd into the NUTTX directory to execute this script."
+       exit 1
+     fi
    fi
 fi
 
 # Get the NuttX directory name and the path to the parent directory
 
-NUTTXDIR=`basename ${NUTTX}`
-PROJECTS=`dirname ${NUTTX}`
+NUTTXDIR=${PROJECTS}/nuttx-${VERSION}
+NUTTX=${NUTTXDIR}/nuttx
+APPS=${NUTTXDIR}/apps
 
-# The name of the directory must match the version number
+# Make sure that the versioned directory exists
 
-if [ "X$NUTTXDIR" != "Xnuttx-${VERSION}" ]; then
-   echo "Expected directory name to be nuttx-${VERSION} found ${NUTTXDIR}"
+if [ ! -d ${NUTTXDIR} ]; then
+   echo "Directory ${NUTTXDIR} does not exist"
    exit 1
 fi
 
 cd ${PROJECTS} || \
    { echo "Failed to cd to ${PROJECTS}" ; exit 1 ; }
 
-if [ ! -d ${NUTTXDIR} ] ; then
-   echo "${PROJECTS}/${NUTTXDIR} does not exist!"
+if [ ! -d nuttx-${VERSION} ] ; then
+   echo "Directory ${PROJECTS}/nuttx-${VERSION} does not exist!"
+   exit 1
+fi
+
+if [ ! -d ${APPS} ] ; then
+   echo "Directory ${APPS} does not exist!"
    exit 1
 fi
 
@@ -124,7 +134,7 @@ fi
 
 # Then zip it
 
-${TAR} ${TAR_NAME} ${NUTTXDIR} || \
+${TAR} ${TAR_NAME} nuttx-${VERSION}/nuttx nuttx-${VERSION}/apps || \
       { echo "tar of ${TAR_NAME} failed!" ; exit 1 ; }
 ${ZIP} ${TAR_NAME} || \
       { echo "zip of ${TAR_NAME} failed!" ; exit 1 ; }