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@ -894,3 +894,12 @@
and pipe the stdout back to the HTTP client.
0.4.12 2009-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
* arch/arm/src/stm32 and configs/stm3210e-eval. Added basic support for the
STMicro STM32, Cortex-M3 MCU. The specific port is to the STMicro STM3210E-EVAL
development board based around the STM32F103ZET6 MCU.
As of this writing, the basic code is in place for boot-up, serial port and
timer interrupt, but lots of debug work remains (and a few more drivers are
needed) before it is released in 0.4.12.

349
Documentation/NuttX.html
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@ -8,7 +8,7 @@
<tr align="center" bgcolor="#e4e4e4">
<td>
<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
<p>Last Updated: September 16, 2009</p>
<p>Last Updated: October 2, 2009</p>
</td>
</tr>
</table>
@ -32,6 +32,13 @@
What is NuttX? Look at all those files and features... How can it be a tiny OS?
</td>
</tr>
<tr>
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
<td>
<a href="#group">NuttX Discussion Group</a>.<br>
Do you want to talk about NuttX features? Do you need some help? Problems? Bugs?
</td>
</tr>
<tr>
<td valign="top" width="22"><img height="20" width="20" src="favicon.ico"></td>
<td>
@ -698,6 +705,22 @@
</table></center>
<table width ="100%">
<tr bgcolor="#e4e4e4">
<td>
<a name="group"><h1>NuttX Discussion Group</h1></a>
</td>
</tr>
</table>
<p>
Most Nuttx-related discussion occurs on the <a href="http://tech.groups.yahoo.com/group/nuttx/" target="_top"><i>Yahoo!</i> NuttX group</a>.
You are cordially invited to <a href="http://groups.yahoo.com/group/nuttx/join" target="_top">join</a>.
I make a special effort to answer any questions and provide any help that I can.
</p>
<table width ="100%">
<tr bgcolor="#e4e4e4">
<td>
@ -756,10 +779,12 @@
A user-mode port of NuttX to the x86 Linux/Cygwin platform is available.
The purpose of this port is primarily to support OS feature development.
</p>
<p>
<b>STATUS:</b>
Does not support interrupts but is otherwise fully functional.
</p>
<ul>
<p>
<b>STATUS:</b>
Does not support interrupts but is otherwise fully functional.
</p>
</ul>
</td>
</tr>
<tr>
@ -777,10 +802,12 @@
This port uses the <a href="http://www.spectrumdigital.com/">Spectrum Digital</a>
evaluation board with a GNU arm-elf toolchain* under Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
This port is complete, verified, and included in the initial NuttX release.
</p>
<ul>
<p>
<b>STATUS:</b>
This port is complete, verified, and included in the initial NuttX release.
</p>
</ul>
</td>
</tr>
<tr>
@ -796,22 +823,24 @@
support is provided for the mcu123.com lpc214x evaluation board (LPC2148).
This port also used the GNU arm-elf toolchain* under Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
This port boots and passes the OS test (examples/ostest).
The port is complete and verified. As of NuttX 0.3.17, the port includes:
timer interrupts, serial console, USB driver, and SPI-based MMC/SD card
support. A verified NuttShell <a href="NuttShell.html">(NSH)</a>
configuration is also available.
</p>
<p>
<b>Development Environments:</b>
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
or Cygwin is provided by the NuttX
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
package.
</p>
<ul>
<p>
<b>STATUS:</b>
This port boots and passes the OS test (examples/ostest).
The port is complete and verified. As of NuttX 0.3.17, the port includes:
timer interrupts, serial console, USB driver, and SPI-based MMC/SD card
support. A verified NuttShell <a href="NuttShell.html">(NSH)</a>
configuration is also available.
</p>
<p>
<b>Development Environments:</b>
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
or Cygwin is provided by the NuttX
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
package.
</p>
</ul>
</td>
</tr>
<tr>
@ -827,23 +856,25 @@
support is provided for the Olimex STR-P711 evaluation board.
This port also used the GNU arm-elf toolchain* under Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
Integration is complete on the basic port (boot logic, system time, serial console).
Two configurations have been verified: (1) The board boots and passes the OS test
with console output visible on UART0, and the NuttShell <a href="NuttShell.html">(NSH)</a>
is fully functional with interrupt driven serial console. An SPI driver is available
but untested (because the Olimex card slot appears to accept only MMC cards; I have
only SD cards). Additional features are needed: USB driver, MMC integration, to name two.
</p>
<p>
<b>Development Environments:</b>
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
or Cygwin is provided by the NuttX
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
package.
</p>
<ul>
<p>
<b>STATUS:</b>
Integration is complete on the basic port (boot logic, system time, serial console).
Two configurations have been verified: (1) The board boots and passes the OS test
with console output visible on UART0, and the NuttShell <a href="NuttShell.html">(NSH)</a>
is fully functional with interrupt driven serial console. An SPI driver is available
but untested (because the Olimex card slot appears to accept only MMC cards; I have
only SD cards). Additional features are needed: USB driver, MMC integration, to name two.
</p>
<p>
<b>Development Environments:</b>
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
or Cygwin is provided by the NuttX
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
package.
</p>
</ul>
</td>
</tr>
<tr>
@ -860,12 +891,15 @@
This port uses the Freescale MX1ADS development board with a GNU arm-elf toolchain*
under either Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
This port is in progress. Coding is complete on the basic port (timer, serial console, SPI).
Verified support for the i.MX1 will be announced in a future release of NuttX (work has
been temporarily stopped to support the Luminary LM3S6918).
</p>
<ul>
<p>
<b>STATUS:</b>
This port is in progress. Coding is complete on the basic port (timer, serial console, SPI).
Verified support for the i.MX1 will be announced in a future release of NuttX (work was
been temporarily stopped to support the Luminary LM3S6918 and I have not yet worked around
some development tool issues.).
</p>
</ul>
</td>
</tr>
<tr>
@ -884,12 +918,14 @@
<a href="http://wiki.neurostechnology.com/index.php/Developer_Welcome">Neuros OSD</a>
with a GNU arm-elf toolchain* under Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
The basic port (timer interrupts, serial ports, network, framebuffer, etc.) is complete.
All implemented features have been verified with the exception of the USB device-side
driver; that implementation is complete but untested.
</p>
<ul>
<p>
<b>STATUS:</b>
The basic port (timer interrupts, serial ports, network, framebuffer, etc.) is complete.
All implemented features have been verified with the exception of the USB device-side
driver; that implementation is complete but untested.
</p>
</ul>
</td>
</tr>
<tr>
@ -906,24 +942,53 @@
This port uses the <a href=" http://www.micromint.com/">Micromint</a> Eagle-100 development
board with a GNU arm-elf toolchain* under either Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
The initial, release of this port was included in NuttX version 0.4.6.
The current port includes timer, serial console, Ethernet, SSI, and microSD support.
There are working configurations the NuttX OS test, to run the <a href="NuttShell.html">NuttShell
(NSH)</a>, the NuttX networking test, and the uIP web server.
</p>
<p>
<b>Development Environments:</b>
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
or Cygwin is provided by the NuttX
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
package.
</p>
<ul>
<p>
<b>STATUS:</b>
The initial, release of this port was included in NuttX version 0.4.6.
The current port includes timer, serial console, Ethernet, SSI, and microSD support.
There are working configurations the NuttX OS test, to run the <a href="NuttShell.html">NuttShell
(NSH)</a>, the NuttX networking test, and the uIP web server.
</p>
<p>
<b>Development Environments:</b>
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
with Windows native toolchain (CodeSourcery or devkitARM). A DIY toolchain for Linux
or Cygwin is provided by the NuttX
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
package.
</p>
</ul>
</td>
</tr>
<tr>
<td><br></td>
<td>
<p>
<b>STMIcro STM32F103x</b>.
This port uses the <a href=" http://www.st.com/">STMicro</a> STM3210E-EVAL
development board that features the STM32F103ZET6 MCU.
This port uses a GNU arm-elf toolchain* under either Linux or Cygwin (with native Windows GNU
tools or Cygwin-based GNU tools).
</p>
<ul>
<p>
<b>STATUS:</b>
As of this writing, the basic code is in place for boot-up, serial port and
timer interrupt, but lots of debug work remains (and a few more drivers are
needed) before it is released in 0.4.12.
</p>
<p>
<b>Development Environments:</b>
1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
with Windows native toolchain (RIDT, CodeSourcery or devkitARM). A DIY toolchain for Linux
or Cygwin is provided by the NuttX
<a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
package.
</p>
</ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
<td bgcolor="#5eaee1">
@ -938,15 +1003,17 @@
This port uses the <a href="http://www.pjrc.com/">PJRC</a> 87C52 development system
and the <a href="http://sdcc.sourceforge.net/">SDCC</a> toolchain under Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
This port is complete but not stable with timer interrupts enabled.
There seems to be some issue when the stack pointer enters into the indirect IRAM
address space during interrupt handling.
This architecture has not been built in some time will likely have some compilation
problems because of SDCC compiler differences.
</p>
</td>
<ul>
<p>
<b>STATUS:</b>
This port is complete but not stable with timer interrupts enabled.
There seems to be some issue when the stack pointer enters into the indirect IRAM
address space during interrupt handling.
This architecture has not been built in some time will likely have some compilation
problems because of SDCC compiler differences.
</p>
</ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
@ -962,18 +1029,20 @@
This port uses the Hitachi SH-1 Low-Cost Evaluation Board (SH1_LCEVB1), US7032EVB,
with a GNU arm-elf toolchain* under Linux or Cygwin.
</p>
<p>
<b>STATUS:</b>
This port is available as of release 0.3.18 of NuttX. The port is basically complete
and many examples run correctly. However, there are remaining instabilities that
make the port un-usable. The nature of these is not understood; the behavior is
that certain SH-1 instructions stop working as advertised. This could be a silicon
problem, some pipeline issue that is not handled properly by the gcc 3.4.5 toolchain
(which has very limit SH-1 support to begin with), or perhaps with the CMON debugger.
At any rate, I have exhausted all of the energy that I am willing to put into this cool
old processor for the time being.
</p>
</td>
<ul>
<p>
<b>STATUS:</b>
This port is available as of release 0.3.18 of NuttX. The port is basically complete
and many examples run correctly. However, there are remaining instabilities that
make the port un-usable. The nature of these is not understood; the behavior is
that certain SH-1 instructions stop working as advertised. This could be a silicon
problem, some pipeline issue that is not handled properly by the gcc 3.4.5 toolchain
(which has very limit SH-1 support to begin with), or perhaps with the CMON debugger.
At any rate, I have exhausted all of the energy that I am willing to put into this cool
old processor for the time being.
</p>
</ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
@ -989,26 +1058,28 @@
This port uses the Renesas SKP16C26 Starter kit and the GNU M32C toolchain.
The development environment is either Linux or Cygwin under WinXP.
</p>
<p>
<b>STATUS:</b>
Initial source files released in nuttx-0.4.2.
At this point, the port has not been integrated; the target cannot be built
because the GNU <code>m16c-elf-ld</code> link fails with the following message:
</p>
<ul>
<code>m32c-elf-ld: BFD (GNU Binutils) 2.19 assertion fail /home/Owner/projects/nuttx/buildroot/toolchain_build_m32c/binutils-2.19/bfd/elf32-m32c.c:482</code>
</ul>
<p>Where the reference line is:</p>
<ul><pre>
<p>
<b>STATUS:</b>
Initial source files released in nuttx-0.4.2.
At this point, the port has not been integrated; the target cannot be built
because the GNU <code>m16c-elf-ld</code> link fails with the following message:
</p>
<ul>
<code>m32c-elf-ld: BFD (GNU Binutils) 2.19 assertion fail /home/Owner/projects/nuttx/buildroot/toolchain_build_m32c/binutils-2.19/bfd/elf32-m32c.c:482</code>
</ul>
<p>Where the reference line is:</p>
<ul><pre>
/* If the symbol is out of range for a 16-bit address,
we must have allocated a plt entry. */
BFD_ASSERT (*plt_offset != (bfd_vma) -1);
</pre></ul>
<p>
No workaround is known at this time. This is a show stopper for M16C for
the time being.
</p>
</td>
<p>
No workaround is known at this time. This is a show stopper for M16C for
the time being.
</p>
</ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
@ -1025,11 +1096,13 @@ BFD_ASSERT (*plt_offset != (bfd_vma) -1);
ZDS-II Windows command line tools.
The development environment is Cygwin under WinXP.
</p>
<p>
<b>STATUS:</b>
The initial release of support for the z16f was made available in NuttX version 0.3.7.
</p>
</td>
<ul>
<p>
<b>STATUS:</b>
The initial release of support for the z16f was made available in NuttX version 0.3.7.
</p>
</ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
@ -1053,14 +1126,16 @@ BFD_ASSERT (*plt_offset != (bfd_vma) -1);
Windows command line tools.
The development environment is Cygwin under WinXP.
</p>
<p>
<b>STATUS:</b>
Integration and testing of NuttX on the ZiLOG ez80f0910200zcog-d is complete.
The first integrated version was released in NuttX version 0.4.2 (with important early bugfixes
in 0.4.3 and 0.4.4).
As of this writing, that port provides basic board support with a serial console, SPI, and eZ80F91 EMAC driver.
</p>
</td>
<ul>
<p>
<b>STATUS:</b>
Integration and testing of NuttX on the ZiLOG ez80f0910200zcog-d is complete.
The first integrated version was released in NuttX version 0.4.2 (with important early bugfixes
in 0.4.3 and 0.4.4).
As of this writing, that port provides basic board support with a serial console, SPI, and eZ80F91 EMAC driver.
</p>
</ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
@ -1083,12 +1158,14 @@ BFD_ASSERT (*plt_offset != (bfd_vma) -1);
and the Zilog ZDS-II Windows command line tools.
The development environment is Cygwin under WinXP.
</p>
<p>
<b>STATUS:</b>
This release has been verified only on the ZiLOG ZDS-II Z8Encore! chip simulation
as of nuttx-0.3.9.
</p>
</td>
<ul>
<p>
<b>STATUS:</b>
This release has been verified only on the ZiLOG ZDS-II Z8Encore! chip simulation
as of nuttx-0.3.9.
</p>
<ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
@ -1107,12 +1184,14 @@ BFD_ASSERT (*plt_offset != (bfd_vma) -1);
That simulator can be found in the NuttX CVS
<a href="http://nuttx.cvs.sourceforge.net/nuttx/misc/sims/z80sim/">here</a>.
</p>
<p>
<b>STATUS:</b>
This port is complete and stable to the extent that it can be tested
using an instruction set simulator.
</p>
</td>
<ul>
<p>
<b>STATUS:</b>
This port is complete and stable to the extent that it can be tested
using an instruction set simulator.
</p>
<ul>
</td>
</tr>
<tr>
<td valign="top"><img height="20" width="20" src="favicon.ico"></td>
@ -1518,6 +1597,14 @@ buildroot-0.1.7 2009-06-26 &lt;spudmonkey@racsa.co.cr&gt;
<ul><pre>
nuttx-0.4.12 2009-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
* arch/arm/src/stm32 and configs/stm3210e-eval. Added basic support for the
STMicro STM32, Cortex-M3 MCU. The specific port is to the STMicro STM3210E-EVAL
development board based around the STM32F103ZET6 MCU.
As of this writing, the basic code is in place for boot-up, serial port and
timer interrupt, but lots of debug work remains (and a few more drivers are
needed) before it is released in 0.4.12.
pascal-0.1.3 2009-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
buildroot-0.1.8 2009-xx-xx &lt;spudmonkey@racsa.co.cr&gt;