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The following commit(s) were added to refs/heads/asf-site by this push:
new 19d64f130 Publishing web: 6f43cfb03f4b427e9277e6d3064476fa7ea61660
docs: 505adfa277f597e8ea08f389f93ed7e64ad35b82
19d64f130 is described below
commit 19d64f13004c76d45190b42953abe85c489ae0ae
Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
AuthorDate: Sun Oct 13 00:25:12 2024 +0000
Publishing web: 6f43cfb03f4b427e9277e6d3064476fa7ea61660 docs:
505adfa277f597e8ea08f389f93ed7e64ad35b82
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common RTOS’s (such as
VxWorks) are adopted for functionality not available under these standards, or
for functionality that is not appropriate for deeply-embedded environments
(such
as fork()).</p>
-<p>Last Updated: 12 October 24 at 00:16</p>
+<p>Last Updated: 13 October 24 at 00:17</p>
<div class="toctree-wrapper compound">
<p class="caption" role="heading"><span class="caption-text">Table of
Contents</span></p>
<ul class="current">
diff --git a/content/docs/12.4.0/searchindex.js
b/content/docs/12.4.0/searchindex.js
index 14b477530..6b6c8ac83 100644
--- a/content/docs/12.4.0/searchindex.js
+++ b/content/docs/12.4.0/searchindex.js
@@ -1 +1 @@
-Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/coremark/index", "applications/benchmarks/index",
"applications/boot/index", "applications/boot/mcuboot/index",
"applications/boot/miniboot/index", "applications/canutils/candump/index",
"applications/canutils/canlib/index", "applications/canutils/cansend/index",
"applications/c [...]
\ No newline at end of file
+Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/coremark/index", "applications/benchmarks/index",
"applications/boot/index", "applications/boot/mcuboot/index",
"applications/boot/miniboot/index", "applications/canutils/candump/index",
"applications/canutils/canlib/index", "applications/canutils/cansend/index",
"applications/c [...]
\ No newline at end of file
diff --git a/content/docs/12.5.0/index.html b/content/docs/12.5.0/index.html
index 28a949a3b..aba407122 100644
--- a/content/docs/12.5.0/index.html
+++ b/content/docs/12.5.0/index.html
@@ -171,7 +171,7 @@ standards. Additional standard APIs from Unix and other
common RTOS’s (such as
VxWorks) are adopted for functionality not available under these standards, or
for functionality that is not appropriate for deeply-embedded environments
(such
as fork()).</p>
-<p>Last Updated: 12 October 24 at 00:18</p>
+<p>Last Updated: 13 October 24 at 00:19</p>
<div class="toctree-wrapper compound">
<p class="caption" role="heading"><span class="caption-text">Table of
Contents</span></p>
<ul class="current">
diff --git a/content/docs/12.5.0/searchindex.js
b/content/docs/12.5.0/searchindex.js
index 36337557f..f112c8556 100644
--- a/content/docs/12.5.0/searchindex.js
+++ b/content/docs/12.5.0/searchindex.js
@@ -1 +1 @@
-Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/coremark/index", "applications/benchmarks/index",
"applications/boot/index", "applications/boot/mcuboot/index",
"applications/boot/miniboot/index", "applications/canutils/candump/index",
"applications/canutils/canlib/index", "applications/canutils/cansend/index",
"applications/c [...]
\ No newline at end of file
+Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/coremark/index", "applications/benchmarks/index",
"applications/boot/index", "applications/boot/mcuboot/index",
"applications/boot/miniboot/index", "applications/canutils/candump/index",
"applications/canutils/canlib/index", "applications/canutils/cansend/index",
"applications/c [...]
\ No newline at end of file
diff --git a/content/docs/12.5.1/index.html b/content/docs/12.5.1/index.html
index fcf7e253b..9ee0b060a 100644
--- a/content/docs/12.5.1/index.html
+++ b/content/docs/12.5.1/index.html
@@ -171,7 +171,7 @@ standards. Additional standard APIs from Unix and other
common RTOS’s (such as
VxWorks) are adopted for functionality not available under these standards, or
for functionality that is not appropriate for deeply-embedded environments
(such
as fork()).</p>
-<p>Last Updated: 12 October 24 at 00:19</p>
+<p>Last Updated: 13 October 24 at 00:20</p>
<div class="toctree-wrapper compound">
<p class="caption" role="heading"><span class="caption-text">Table of
Contents</span></p>
<ul class="current">
diff --git a/content/docs/12.5.1/searchindex.js
b/content/docs/12.5.1/searchindex.js
index 0e053cdd0..b743733e3 100644
--- a/content/docs/12.5.1/searchindex.js
+++ b/content/docs/12.5.1/searchindex.js
@@ -1 +1 @@
-Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/coremark/index", "applications/benchmarks/index",
"applications/boot/index", "applications/boot/mcuboot/index",
"applications/boot/miniboot/index", "applications/canutils/candump/index",
"applications/canutils/canlib/index", "applications/canutils/cansend/index",
"applications/c [...]
\ No newline at end of file
+Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/coremark/index", "applications/benchmarks/index",
"applications/boot/index", "applications/boot/mcuboot/index",
"applications/boot/miniboot/index", "applications/canutils/candump/index",
"applications/canutils/canlib/index", "applications/canutils/cansend/index",
"applications/c [...]
\ No newline at end of file
diff --git a/content/docs/12.6.0/index.html b/content/docs/12.6.0/index.html
index c0dc90c7f..ddb1c657b 100644
--- a/content/docs/12.6.0/index.html
+++ b/content/docs/12.6.0/index.html
@@ -172,7 +172,7 @@ standards. Additional standard APIs from Unix and other
common RTOS’s (such as
VxWorks) are adopted for functionality not available under these standards, or
for functionality that is not appropriate for deeply-embedded environments
(such
as fork()).</p>
-<p>Last Updated: 12 October 24 at 00:20</p>
+<p>Last Updated: 13 October 24 at 00:21</p>
<div class="toctree-wrapper compound">
<p class="caption" role="heading"><span class="caption-text">Table of
Contents</span></p>
<ul class="current">
diff --git a/content/docs/12.6.0/searchindex.js
b/content/docs/12.6.0/searchindex.js
index 42144e6b3..d0bd9eb03 100644
--- a/content/docs/12.6.0/searchindex.js
+++ b/content/docs/12.6.0/searchindex.js
@@ -1 +1 @@
-Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/cachespeed/index",
"applications/benchmarks/coremark-pro/index",
"applications/benchmarks/coremark/index",
"applications/benchmarks/dhrystone/index", "applications/benchmarks/fio/index",
"applications/benchmarks/index", "applications/benchmarks/iozone/index",
"applications/bench [...]
\ No newline at end of file
+Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/cachespeed/index",
"applications/benchmarks/coremark-pro/index",
"applications/benchmarks/coremark/index",
"applications/benchmarks/dhrystone/index", "applications/benchmarks/fio/index",
"applications/benchmarks/index", "applications/benchmarks/iozone/index",
"applications/bench [...]
\ No newline at end of file
diff --git a/content/docs/latest/_sources/guides/coredump.rst.txt
b/content/docs/latest/_sources/guides/coredump.rst.txt
index 94dfa7fc3..9b68c755c 100644
--- a/content/docs/latest/_sources/guides/coredump.rst.txt
+++ b/content/docs/latest/_sources/guides/coredump.rst.txt
@@ -16,9 +16,7 @@ Enable Kconfig
.. code-block:: console
- CONFIG_ELF=y /* Enable ELF */
-
- CONFIG_ELF_COREDUMP=y /* Enable ELF Coredump */
+ CONFIG_COREDUMP=y /* Enable Coredump */
CONFIG_BOARD_COREDUMP_SYSLOG=y /* Enable Board Coredump, if
exceptions and assertions occur, */
diff --git
a/content/docs/latest/_sources/guides/debuggingflash_nuttxonarm.rst.txt
b/content/docs/latest/_sources/guides/debuggingflash_nuttxonarm.rst.txt
new file mode 100644
index 000000000..1d8b0fbee
--- /dev/null
+++ b/content/docs/latest/_sources/guides/debuggingflash_nuttxonarm.rst.txt
@@ -0,0 +1,111 @@
+===================================================================
+Debugging / flashing NuttX on ARM with hardware debugger (JTAG/SWD)
+===================================================================
+
+.. warning::
+ Migrated from:
+ https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=139629444
+
+
+NOTE: If you experience the issues described on this page, you can enable the
+configuration option below to resolve it.
+
+.. code-block:: makefile
+
+ CONFIG_STM32_DISABLE_IDLE_SLEEP_DURING_DEBUG=y
+
+What's the problem?
+===================
+
+On some architectures (like ARM Cortex-M3) Idle thread causes the core to stop
+using WFI (Wait For Interrupt) assembly instruction. This effectively stops
+clocking of the core, which is resumed only by some enabled interrupt. This
+causes hardware debuggers to believe that they were disconnected from the
+target, as they lose connection with the now stopped core. For example OpenOCD
+shows errors like these the moment you start the target:
+
+.. code-block:: console
+
+ Error: jtag status contains invalid mode value - communication failure
+ Polling target failed, GDB will be halted. Polling again in 100ms
+ Error: jtag status contains invalid mode value - communication failure
+ Polling target failed, GDB will be halted. Polling again in 300ms
+ Error: jtag status contains invalid mode value - communication failure
+ Polling target failed, GDB will be halted. Polling again in 700ms
+ Error: jtag status contains invalid mode value - communication failure
+ Polling target failed, GDB will be halted. Polling again in 1500ms
+ Error: jtag status contains invalid mode value - communication failure
+ Polling target failed, GDB will be halted. Polling again in 3100ms
+ Error: jtag status contains invalid mode value - communication failure
+ Polling target failed, GDB will be halted. Polling again in 6300ms
+ Error: jtag status contains invalid mode value - communication failure
+ Polling target failed, GDB will be halted. Polling again in 6300ms
+
+
+This makes debugging the code impossible and flashing the chip is much harder -
+you have to connect to the chip at the right moment (when it's not disabled
+due to WFI) - the chances of doing that are inverse proportional to the load
+of your system (if your chip spends 99% of time in Idle mode, you have 1%
+chance of connecting and halting it).
+
+Solution
+========
+
+Some ARM cores that support disabling of clocking after WFI instruction have
+special configuration options to make debugging possible. One example is STM32
+family - with it's ``DBGMCU->CR`` register it's possible to keep the core
+clocked during power-down modes. If your chip supports such configuration you
+should put it in some early stage of initialization, like in
+``stm32_boardinitialize()`` function. The following code demonstrates the
+change for STM32:
+
+.. code-block:: c
+
+ uint32_t cr = getreg32(STM32_DBGMCU_CR);
+ cr |= DBGMCU_CR_STANDBY | DBGMCU_CR_STOP | DBGMCU_CR_SLEEP;
+ putreg32(cr, STM32_DBGMCU_CR);
+
+If your chip doesn't provide such options there is no other way than not using
+WFI instruction in up_idle() function.
+
+It should be noted that such modification should be done only for development
+stage, as keeping the core clocked during power-down modes contradicts the
+major purpose of using them - reducing power usage.
+
+In rare cases that you still have problems with connecting to the target
+(especially after power cycle), you should try connecting and halting the chip
+under reset (this is supported by new versions of OpenOCD), by holding the
+reset button while starting OpenOCD or by configuring OpenOCD to do that for
+you.
+
+Work-around
+-----------
+
+If you keep the RESET button pressed and run OpenOCD command to connected to
+it, then it will connect sucessful. After connecting you need to keep the
+reset button pressed until you open the telnet connection
+(telnet 127.0.0.1 4444) and execute "reset halt":
+
+.. code-block:: console
+
+ > reset halt
+ timed out while waiting for target halted
+ TARGET: stm32f1x.cpu - Not halted
+
+ in procedure 'reset'
+ target state: halted
+ target halted due to debug-request, current mode: Thread
+ xPSR: 0x01000000 pc: 0x080003d0 msp: 0x20001278
+
+Then release the RESET boot and it will reset correctly.
+
+This work-around was tested on viewtool-stm32f107 board and bypassed the above
+error reported by OpenOCD. The SWD programmer was a STLink-V2 and this was
+the command to connect:
+
+.. code-block:: console
+
+ openocd -f interface/stlink-v2.cfg -f target/stm32f1x_stlink.cfg
+
+The OpenOCD version used was: Open On-Chip Debugger 0.8.0-dev-00307-g215c41c
+(git commit 215c41c)
diff --git a/content/docs/latest/_sources/guides/index.rst.txt
b/content/docs/latest/_sources/guides/index.rst.txt
index 7a40208b9..45121672e 100644
--- a/content/docs/latest/_sources/guides/index.rst.txt
+++ b/content/docs/latest/_sources/guides/index.rst.txt
@@ -35,3 +35,4 @@ Guides
etcromfs.rst
thread_local_storage.rst
devicetree.rst
+ debuggingflash_nuttxonarm.rst
diff --git a/content/docs/latest/glossary.html
b/content/docs/latest/glossary.html
index ea92dfddc..d23e09017 100644
--- a/content/docs/latest/glossary.html
+++ b/content/docs/latest/glossary.html
@@ -44,7 +44,7 @@
<link rel="index" title="Index" href="genindex.html" />
<link rel="search" title="Search" href="search.html" />
<link rel="next" title="NuttX Logos" href="logos/index.html" />
- <link rel="prev" title="Device Tree" href="guides/devicetree.html" />
+ <link rel="prev" title="Debugging / flashing NuttX on ARM with hardware
debugger (JTAG/SWD)" href="guides/debuggingflash_nuttxonarm.html" />
</head>
<body class="wy-body-for-nav">
@@ -403,7 +403,7 @@
</div>
</div>
<footer><div class="rst-footer-buttons" role="navigation"
aria-label="Footer">
- <a href="guides/devicetree.html" class="btn btn-neutral float-left"
title="Device Tree" accesskey="p" rel="prev"><span class="fa
fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
+ <a href="guides/debuggingflash_nuttxonarm.html" class="btn btn-neutral
float-left" title="Debugging / flashing NuttX on ARM with hardware debugger
(JTAG/SWD)" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"
aria-hidden="true"></span> Previous</a>
<a href="logos/index.html" class="btn btn-neutral float-right"
title="NuttX Logos" accesskey="n" rel="next">Next <span class="fa
fa-arrow-circle-right" aria-hidden="true"></span></a>
</div>
diff --git a/content/docs/latest/guides/automounter.html
b/content/docs/latest/guides/automounter.html
index 7d95494c9..484a92968 100644
--- a/content/docs/latest/guides/automounter.html
+++ b/content/docs/latest/guides/automounter.html
@@ -158,6 +158,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/citests.html
b/content/docs/latest/guides/citests.html
index 489509929..25e29d39f 100644
--- a/content/docs/latest/guides/citests.html
+++ b/content/docs/latest/guides/citests.html
@@ -157,6 +157,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/coredump.html
b/content/docs/latest/guides/coredump.html
index 42c7925aa..360d516fa 100644
--- a/content/docs/latest/guides/coredump.html
+++ b/content/docs/latest/guides/coredump.html
@@ -159,6 +159,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
@@ -202,9 +203,7 @@
</ol>
<p>Enable Kconfig</p>
<blockquote>
-<div><div class="highlight-console notranslate"><div
class="highlight"><pre><span></span><span class="go">CONFIG_ELF=y
/* Enable ELF */</span>
-
-<span class="go">CONFIG_ELF_COREDUMP=y /* Enable ELF Coredump
*/</span>
+<div><div class="highlight-console notranslate"><div
class="highlight"><pre><span></span><span class="go">CONFIG_COREDUMP=y
/* Enable Coredump */</span>
<span class="go">CONFIG_BOARD_COREDUMP_SYSLOG=y /* Enable Board Coredump,
if exceptions and assertions occur, */</span>
diff --git a/content/docs/latest/guides/coresight.html
b/content/docs/latest/guides/coresight.html
index 42378be7a..71cb980bc 100644
--- a/content/docs/latest/guides/coresight.html
+++ b/content/docs/latest/guides/coresight.html
@@ -158,6 +158,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/cortexmhardfaults.html
b/content/docs/latest/guides/cortexmhardfaults.html
index ecd87f20a..2ac8cd229 100644
--- a/content/docs/latest/guides/cortexmhardfaults.html
+++ b/content/docs/latest/guides/cortexmhardfaults.html
@@ -163,6 +163,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/cpp_cmake.html
b/content/docs/latest/guides/cpp_cmake.html
index e28c4db14..6c0c1aa66 100644
--- a/content/docs/latest/guides/cpp_cmake.html
+++ b/content/docs/latest/guides/cpp_cmake.html
@@ -158,6 +158,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/customapps.html
b/content/docs/latest/guides/customapps.html
index 91394d816..f75c37c56 100644
--- a/content/docs/latest/guides/customapps.html
+++ b/content/docs/latest/guides/customapps.html
@@ -178,6 +178,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/customboards.html
b/content/docs/latest/guides/customboards.html
index 3084584ef..dc0056449 100644
--- a/content/docs/latest/guides/customboards.html
+++ b/content/docs/latest/guides/customboards.html
@@ -157,6 +157,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/devicetree.html
b/content/docs/latest/guides/debuggingflash_nuttxonarm.html
similarity index 55%
copy from content/docs/latest/guides/devicetree.html
copy to content/docs/latest/guides/debuggingflash_nuttxonarm.html
index 714627d58..fd25c4a99 100644
--- a/content/docs/latest/guides/devicetree.html
+++ b/content/docs/latest/guides/debuggingflash_nuttxonarm.html
@@ -25,7 +25,7 @@
<meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1:
http://docutils.sourceforge.net/"; />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <title>Device Tree — NuttX latest documentation</title>
+ <title>Debugging / flashing NuttX on ARM with hardware debugger (JTAG/SWD)
— NuttX latest documentation</title>
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@@ -44,7 +44,7 @@
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+ <link rel="prev" title="Device Tree" href="devicetree.html" />
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@@ -152,9 +152,13 @@
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-<li class="toctree-l2 current"><a class="current reference internal"
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-<li class="toctree-l3"><a class="reference internal"
href="#overview">Overview</a></li>
-<li class="toctree-l3"><a class="reference internal" href="#how-to-use">How to
use</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2 current"><a class="current reference internal"
href="#">Debugging / flashing NuttX on ARM with hardware debugger
(JTAG/SWD)</a><ul>
+<li class="toctree-l3"><a class="reference internal"
href="#what-s-the-problem">What’s the problem?</a></li>
+<li class="toctree-l3"><a class="reference internal"
href="#solution">Solution</a><ul>
+<li class="toctree-l4"><a class="reference internal"
href="#work-around">Work-around</a></li>
+</ul>
+</li>
</ul>
</li>
</ul>
@@ -178,9 +182,9 @@
<ul class="wy-breadcrumbs">
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aria-label="Home"></a></li>
<li class="breadcrumb-item"><a href="index.html">Guides</a></li>
- <li class="breadcrumb-item active">Device Tree</li>
+ <li class="breadcrumb-item active">Debugging / flashing NuttX on ARM
with hardware debugger (JTAG/SWD)</li>
<li class="wy-breadcrumbs-aside">
- <a href="../_sources/guides/devicetree.rst.txt" rel="nofollow">
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@@ -188,38 +192,98 @@
<div role="main" class="document" itemscope="itemscope"
itemtype="http://schema.org/Article";>
<div itemprop="articleBody">
- <section id="device-tree">
-<h1>Device Tree<a class="headerlink" href="#device-tree" title="Permalink to
this heading"></a></h1>
-<section id="overview">
-<h2>Overview<a class="headerlink" href="#overview" title="Permalink to this
heading"></a></h2>
-<p>Currently, NuttX supports parsing of FDT(Flattened Device Tree) using
libfdt, a
-utility library for reading and manipulating the binary format:</p>
-<p><a class="reference external"
href="https://github.com/dgibson/dtc/";>https://github.com/dgibson/dtc/</a></p>
-<p>Based on that, NuttX has implemented some common functions to get
properties.
-Device Tree support in NuttX will reduce the configuration of chips/boards,
-it is not used in NuttX kernel framework yet.</p>
+ <section
id="debugging-flashing-nuttx-on-arm-with-hardware-debugger-jtag-swd">
+<h1>Debugging / flashing NuttX on ARM with hardware debugger (JTAG/SWD)<a
class="headerlink"
href="#debugging-flashing-nuttx-on-arm-with-hardware-debugger-jtag-swd"
title="Permalink to this heading"></a></h1>
+<div class="admonition warning">
+<p class="admonition-title">Warning</p>
+<p>Migrated from:
+<a class="reference external"
href="https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=139629444";>https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=139629444</a></p>
+</div>
+<p>NOTE: If you experience the issues described on this page, you can enable
the
+configuration option below to resolve it.</p>
+<div class="highlight-makefile notranslate"><div
class="highlight"><pre><span></span><span
class="nv">CONFIG_STM32_DISABLE_IDLE_SLEEP_DURING_DEBUG</span><span
class="o">=</span>y
+</pre></div>
+</div>
+<section id="what-s-the-problem">
+<h2>What’s the problem?<a class="headerlink" href="#what-s-the-problem"
title="Permalink to this heading"></a></h2>
+<p>On some architectures (like ARM Cortex-M3) Idle thread causes the core to
stop
+using WFI (Wait For Interrupt) assembly instruction. This effectively stops
+clocking of the core, which is resumed only by some enabled interrupt. This
+causes hardware debuggers to believe that they were disconnected from the
+target, as they lose connection with the now stopped core. For example OpenOCD
+shows errors like these the moment you start the target:</p>
+<div class="highlight-console notranslate"><div
class="highlight"><pre><span></span><span class="go">Error: jtag status
contains invalid mode value - communication failure</span>
+<span class="go">Polling target failed, GDB will be halted. Polling again in
100ms</span>
+<span class="go">Error: jtag status contains invalid mode value -
communication failure</span>
+<span class="go">Polling target failed, GDB will be halted. Polling again in
300ms</span>
+<span class="go">Error: jtag status contains invalid mode value -
communication failure</span>
+<span class="go">Polling target failed, GDB will be halted. Polling again in
700ms</span>
+<span class="go">Error: jtag status contains invalid mode value -
communication failure</span>
+<span class="go">Polling target failed, GDB will be halted. Polling again in
1500ms</span>
+<span class="go">Error: jtag status contains invalid mode value -
communication failure</span>
+<span class="go">Polling target failed, GDB will be halted. Polling again in
3100ms</span>
+<span class="go">Error: jtag status contains invalid mode value -
communication failure</span>
+<span class="go">Polling target failed, GDB will be halted. Polling again in
6300ms</span>
+<span class="go">Error: jtag status contains invalid mode value -
communication failure</span>
+<span class="go">Polling target failed, GDB will be halted. Polling again in
6300ms</span>
+</pre></div>
+</div>
+<p>This makes debugging the code impossible and flashing the chip is much
harder -
+you have to connect to the chip at the right moment (when it’s not disabled
+due to WFI) - the chances of doing that are inverse proportional to the load
+of your system (if your chip spends 99% of time in Idle mode, you have 1%
+chance of connecting and halting it).</p>
</section>
-<section id="how-to-use">
-<h2>How to use<a class="headerlink" href="#how-to-use" title="Permalink to
this heading"></a></h2>
-<ol class="arabic simple">
-<li><p>Enable Device Tree and libfdt</p></li>
-</ol>
-<p>Enable the Kconfig settings:</p>
-<blockquote>
-<div><div class="highlight-console notranslate"><div
class="highlight"><pre><span></span><span class="go">CONFIG_DEVICE_TREE=y
/* Enable Device Tree */</span>
-<span class="go">CONFIG_LIBFDT=y /* Enable utility
library */</span>
+<section id="solution">
+<h2>Solution<a class="headerlink" href="#solution" title="Permalink to this
heading"></a></h2>
+<p>Some ARM cores that support disabling of clocking after WFI instruction have
+special configuration options to make debugging possible. One example is STM32
+family - with it’s <code class="docutils literal notranslate"><span
class="pre">DBGMCU->CR</span></code> register it’s possible to keep the core
+clocked during power-down modes. If your chip supports such configuration you
+should put it in some early stage of initialization, like in
+<code class="docutils literal notranslate"><span
class="pre">stm32_boardinitialize()</span></code> function. The following code
demonstrates the
+change for STM32:</p>
+<div class="highlight-c notranslate"><div
class="highlight"><pre><span></span><span class="kt">uint32_t</span><span
class="w"> </span><span class="n">cr</span><span class="w"> </span><span
class="o">=</span><span class="w"> </span><span class="n">getreg32</span><span
class="p">(</span><span class="n">STM32_DBGMCU_CR</span><span
class="p">);</span>
+<span class="n">cr</span><span class="w"> </span><span
class="o">|=</span><span class="w"> </span><span
class="n">DBGMCU_CR_STANDBY</span><span class="w"> </span><span
class="o">|</span><span class="w"> </span><span
class="n">DBGMCU_CR_STOP</span><span class="w"> </span><span
class="o">|</span><span class="w"> </span><span
class="n">DBGMCU_CR_SLEEP</span><span class="p">;</span>
+<span class="n">putreg32</span><span class="p">(</span><span
class="n">cr</span><span class="p">,</span><span class="w"> </span><span
class="n">STM32_DBGMCU_CR</span><span class="p">);</span>
</pre></div>
</div>
-</div></blockquote>
-<ol class="arabic simple" start="2">
-<li><p>Register the DTB address</p></li>
-</ol>
-<p>Use fdt_register to set the DTB Address in NuttX</p>
-<ol class="arabic simple" start="3">
-<li><p>Parse the DTB</p></li>
-</ol>
-<p>Chip/board will use fdt_get to get the DTB Address, and then use fdt_* APIs
to
-parse the DTB properties.</p>
+<p>If your chip doesn’t provide such options there is no other way than not
using
+WFI instruction in up_idle() function.</p>
+<p>It should be noted that such modification should be done only for
development
+stage, as keeping the core clocked during power-down modes contradicts the
+major purpose of using them - reducing power usage.</p>
+<p>In rare cases that you still have problems with connecting to the target
+(especially after power cycle), you should try connecting and halting the chip
+under reset (this is supported by new versions of OpenOCD), by holding the
+reset button while starting OpenOCD or by configuring OpenOCD to do that for
+you.</p>
+<section id="work-around">
+<h3>Work-around<a class="headerlink" href="#work-around" title="Permalink to
this heading"></a></h3>
+<p>If you keep the RESET button pressed and run OpenOCD command to connected to
+it, then it will connect sucessful. After connecting you need to keep the
+reset button pressed until you open the telnet connection
+(telnet 127.0.0.1 4444) and execute “reset halt”:</p>
+<div class="highlight-console notranslate"><div
class="highlight"><pre><span></span><span class="go">> reset halt</span>
+<span class="go">timed out while waiting for target halted</span>
+<span class="go">TARGET: stm32f1x.cpu - Not halted</span>
+
+<span class="go">in procedure 'reset'</span>
+<span class="go">target state: halted</span>
+<span class="go">target halted due to debug-request, current mode:
Thread</span>
+<span class="go">xPSR: 0x01000000 pc: 0x080003d0 msp: 0x20001278</span>
+</pre></div>
+</div>
+<p>Then release the RESET boot and it will reset correctly.</p>
+<p>This work-around was tested on viewtool-stm32f107 board and bypassed the
above
+error reported by OpenOCD. The SWD programmer was a STLink-V2 and this was
+the command to connect:</p>
+<div class="highlight-console notranslate"><div
class="highlight"><pre><span></span><span class="go">openocd -f
interface/stlink-v2.cfg -f target/stm32f1x_stlink.cfg</span>
+</pre></div>
+</div>
+<p>The OpenOCD version used was: Open On-Chip Debugger 0.8.0-dev-00307-g215c41c
+(git commit 215c41c)</p>
+</section>
</section>
</section>
@@ -227,7 +291,7 @@ parse the DTB properties.</p>
</div>
</div>
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index 714627d58..e8166292b 100644
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@@ -157,6 +157,7 @@
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</ul>
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+<li class="toctree-l2"><a class="reference internal"
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@@ -228,7 +229,7 @@ parse the DTB properties.</p>
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b/content/docs/latest/guides/drivers.html
index a7062dbd0..a9bf28e41 100644
--- a/content/docs/latest/guides/drivers.html
+++ b/content/docs/latest/guides/drivers.html
@@ -160,6 +160,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
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diff --git a/content/docs/latest/guides/etcromfs.html
b/content/docs/latest/guides/etcromfs.html
index a987bbd2e..056c0b39d 100644
--- a/content/docs/latest/guides/etcromfs.html
+++ b/content/docs/latest/guides/etcromfs.html
@@ -159,6 +159,7 @@
</li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal"
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diff --git a/content/docs/latest/guides/gdbserver.html
b/content/docs/latest/guides/gdbserver.html
index 22de4e6be..8071c1dc5 100644
--- a/content/docs/latest/guides/gdbserver.html
+++ b/content/docs/latest/guides/gdbserver.html
@@ -162,6 +162,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/gdbwithpython.html
b/content/docs/latest/guides/gdbwithpython.html
index 24f612dad..cbe52fafd 100644
--- a/content/docs/latest/guides/gdbwithpython.html
+++ b/content/docs/latest/guides/gdbwithpython.html
@@ -158,6 +158,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/index.html
b/content/docs/latest/guides/index.html
index 4b89fcf56..43679e655 100644
--- a/content/docs/latest/guides/index.html
+++ b/content/docs/latest/guides/index.html
@@ -153,6 +153,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
@@ -458,6 +459,14 @@
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html#how-to-use">How to use</a></li>
</ul>
</li>
+<li class="toctree-l1"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a><ul>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html#what-s-the-problem">What’s the
problem?</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html#solution">Solution</a><ul>
+<li class="toctree-l3"><a class="reference internal"
href="debuggingflash_nuttxonarm.html#work-around">Work-around</a></li>
+</ul>
+</li>
+</ul>
+</li>
</ul>
</div>
</section>
diff --git a/content/docs/latest/guides/kasan.html
b/content/docs/latest/guides/kasan.html
index ca5a1e13e..5a305d07b 100644
--- a/content/docs/latest/guides/kasan.html
+++ b/content/docs/latest/guides/kasan.html
@@ -166,6 +166,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/nestedinterrupts.html
b/content/docs/latest/guides/nestedinterrupts.html
index afb910302..2856a3800 100644
--- a/content/docs/latest/guides/nestedinterrupts.html
+++ b/content/docs/latest/guides/nestedinterrupts.html
@@ -160,6 +160,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/nfs.html
b/content/docs/latest/guides/nfs.html
index 9b6d7c20d..9abfc19e8 100644
--- a/content/docs/latest/guides/nfs.html
+++ b/content/docs/latest/guides/nfs.html
@@ -159,6 +159,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal"
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diff --git a/content/docs/latest/guides/ofloader.html
b/content/docs/latest/guides/ofloader.html
index 84fa1df01..e3a301897 100644
--- a/content/docs/latest/guides/ofloader.html
+++ b/content/docs/latest/guides/ofloader.html
@@ -159,6 +159,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/pysimcoder.html
b/content/docs/latest/guides/pysimcoder.html
index c9155fef1..7d9383d2c 100644
--- a/content/docs/latest/guides/pysimcoder.html
+++ b/content/docs/latest/guides/pysimcoder.html
@@ -158,6 +158,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/qemugdb.html
b/content/docs/latest/guides/qemugdb.html
index 2b15baa16..cc9894f61 100644
--- a/content/docs/latest/guides/qemugdb.html
+++ b/content/docs/latest/guides/qemugdb.html
@@ -158,6 +158,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/rndis.html
b/content/docs/latest/guides/rndis.html
index 5e2650da2..7a2cb2eed 100644
--- a/content/docs/latest/guides/rndis.html
+++ b/content/docs/latest/guides/rndis.html
@@ -158,6 +158,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/simulator.html
b/content/docs/latest/guides/simulator.html
index 236e8617a..bdfc41067 100644
--- a/content/docs/latest/guides/simulator.html
+++ b/content/docs/latest/guides/simulator.html
@@ -161,6 +161,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/stackrecord.html
b/content/docs/latest/guides/stackrecord.html
index aea77100b..d1840d5b9 100644
--- a/content/docs/latest/guides/stackrecord.html
+++ b/content/docs/latest/guides/stackrecord.html
@@ -160,6 +160,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/stm32ccm.html
b/content/docs/latest/guides/stm32ccm.html
index 4424273f0..f213f3d88 100644
--- a/content/docs/latest/guides/stm32ccm.html
+++ b/content/docs/latest/guides/stm32ccm.html
@@ -159,6 +159,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/stm32nullpointer.html
b/content/docs/latest/guides/stm32nullpointer.html
index af82c9ab4..43dda7f56 100644
--- a/content/docs/latest/guides/stm32nullpointer.html
+++ b/content/docs/latest/guides/stm32nullpointer.html
@@ -160,6 +160,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/tasktrace.html
b/content/docs/latest/guides/tasktrace.html
index a43f35e9f..ae80288c2 100644
--- a/content/docs/latest/guides/tasktrace.html
+++ b/content/docs/latest/guides/tasktrace.html
@@ -157,6 +157,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/tasktraceinternal.html
b/content/docs/latest/guides/tasktraceinternal.html
index 3b6aff451..83fe6ffad 100644
--- a/content/docs/latest/guides/tasktraceinternal.html
+++ b/content/docs/latest/guides/tasktraceinternal.html
@@ -172,6 +172,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/tasktraceuser.html
b/content/docs/latest/guides/tasktraceuser.html
index caba18929..2bc1fbbcc 100644
--- a/content/docs/latest/guides/tasktraceuser.html
+++ b/content/docs/latest/guides/tasktraceuser.html
@@ -178,6 +178,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/testingtcpip.html
b/content/docs/latest/guides/testingtcpip.html
index bf85c2991..e72642441 100644
--- a/content/docs/latest/guides/testingtcpip.html
+++ b/content/docs/latest/guides/testingtcpip.html
@@ -159,6 +159,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/thread_local_storage.html
b/content/docs/latest/guides/thread_local_storage.html
index 4b9ec31d0..37a538ca6 100644
--- a/content/docs/latest/guides/thread_local_storage.html
+++ b/content/docs/latest/guides/thread_local_storage.html
@@ -156,6 +156,7 @@
</ul>
</li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/usbtrace.html
b/content/docs/latest/guides/usbtrace.html
index 86b9832b4..1019fa2af 100644
--- a/content/docs/latest/guides/usbtrace.html
+++ b/content/docs/latest/guides/usbtrace.html
@@ -153,6 +153,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/guides/zerolatencyinterrupts.html
b/content/docs/latest/guides/zerolatencyinterrupts.html
index 49eea11f3..a909f0eea 100644
--- a/content/docs/latest/guides/zerolatencyinterrupts.html
+++ b/content/docs/latest/guides/zerolatencyinterrupts.html
@@ -168,6 +168,7 @@
<li class="toctree-l2"><a class="reference internal" href="etcromfs.html">etc
romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM with
hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="../glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/index.html b/content/docs/latest/index.html
index 4c89828a2..d05a241bc 100644
--- a/content/docs/latest/index.html
+++ b/content/docs/latest/index.html
@@ -171,7 +171,7 @@ standards. Additional standard APIs from Unix and other
common RTOS’s (such as
VxWorks) are adopted for functionality not available under these standards, or
for functionality that is not appropriate for deeply-embedded environments
(such
as fork()).</p>
-<p>Last Updated: 12 October 24 at 00:22</p>
+<p>Last Updated: 13 October 24 at 00:23</p>
<div class="toctree-wrapper compound">
<p class="caption" role="heading"><span class="caption-text">Table of
Contents</span></p>
<ul class="current">
@@ -335,6 +335,7 @@ as fork()).</p>
<li class="toctree-l2"><a class="reference internal"
href="guides/etcromfs.html">etc romfs</a></li>
<li class="toctree-l2"><a class="reference internal"
href="guides/thread_local_storage.html">Thread Local Storage</a></li>
<li class="toctree-l2"><a class="reference internal"
href="guides/devicetree.html">Device Tree</a></li>
+<li class="toctree-l2"><a class="reference internal"
href="guides/debuggingflash_nuttxonarm.html">Debugging / flashing NuttX on ARM
with hardware debugger (JTAG/SWD)</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal"
href="glossary.html">Glossary</a></li>
diff --git a/content/docs/latest/objects.inv b/content/docs/latest/objects.inv
index 62fb7699c..605a3d572 100644
Binary files a/content/docs/latest/objects.inv and
b/content/docs/latest/objects.inv differ
diff --git
a/content/docs/latest/platforms/arm/qemu/boards/qemu-armv7a/index.html
b/content/docs/latest/platforms/arm/qemu/boards/qemu-armv7a/index.html
index a64d27a89..2b8f0f516 100644
--- a/content/docs/latest/platforms/arm/qemu/boards/qemu-armv7a/index.html
+++ b/content/docs/latest/platforms/arm/qemu/boards/qemu-armv7a/index.html
@@ -285,6 +285,35 @@ Getting Started
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -kernel ./nuttx
+2. knsh
+------
+ This is a configuration of testing the BUILD_KERNEL configuration
+ $ cd nuttx
+ $ ./tools/configure.sh qemu-armv7a:knsh
+ $ make V=1 -j7
+ $ make export V=1
+ $ cd ../apps
+ $ ./tools/mkimport.sh -z -x ../nuttx/nuttx-export-*.tar.gz
+ $ make import V=1
+ $ cd ../nuttx
+ $ qemu-system-arm -semihosting -M virt -m 1024 -nographic -kernel ./nuttx
+
+ NuttShell (NSH) NuttX-12.3.0-RC0
+ nsh> uname -a
+ NuttX 12.3.0-RC0 28dee592a3-dirty Oct 12 2023 03:03:07 arm qemu-armv7a
+ nsh> ps
+ PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
+ 0 0 0 FIFO Kthread N-- Ready 0000000000000000
004088 000896 21.9% Idle_Task
+ 1 1 100 RR Kthread --- Waiting Semaphore 0000000000000000
004040 000304 7.5% lpwork 0x40119398 0x401193ac
+ 2 2 100 RR Task --- Running 0000000000000000
003032 001032 34.0% /system/bin/init
+ nsh> free
+ total used free largest nused nfree
+ Kmem: 133058556 16644 133041912 133041152 41 3
+ Page: 134217728 1105920 133111808 133111808
+ nsh> /system/bin/hello
+ Hello, World!!
+ nsh>
+
Debugging with QEMU
===================
diff --git a/content/docs/latest/searchindex.js
b/content/docs/latest/searchindex.js
index 1cc413f09..4c9559de0 100644
--- a/content/docs/latest/searchindex.js
+++ b/content/docs/latest/searchindex.js
@@ -1 +1 @@
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"applications/benchmarks/coremark-pro/index",
"applications/benchmarks/coremark/index",
"applications/benchmarks/dhrystone/index", "applications/benchmarks/fio/index",
"applications/benchmarks/index", "applications/benchmarks/iozone/index",
"applications/bench [...]
\ No newline at end of file
+Search.setIndex({"docnames": ["applications/audioutils/fmsynt/index",
"applications/audioutils/index", "applications/audioutils/mml_parser/index",
"applications/audioutils/nxaudio/index",
"applications/benchmarks/cachespeed/index",
"applications/benchmarks/coremark-pro/index",
"applications/benchmarks/coremark/index",
"applications/benchmarks/dhrystone/index", "applications/benchmarks/fio/index",
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diff --git a/content/feed.xml b/content/feed.xml
index c6037590f..2fd1c03c4 100644
--- a/content/feed.xml
+++ b/content/feed.xml
@@ -5,8 +5,8 @@
<description></description>
<link>/</link>
<atom:link href="/feed.xml" rel="self" type="application/rss+xml"/>
- <pubDate>Sat, 12 Oct 2024 00:24:10 +0000</pubDate>
- <lastBuildDate>Sat, 12 Oct 2024 00:24:10 +0000</lastBuildDate>
+ <pubDate>Sun, 13 Oct 2024 00:25:01 +0000</pubDate>
+ <lastBuildDate>Sun, 13 Oct 2024 00:25:01 +0000</lastBuildDate>
<generator>Jekyll v4.3.2</generator>
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