Xenomai - Revision history

JulienB: /* Installing Xenomai */

2014-04-30T11:41:08Z

‎Installing Xenomai

2014-02-24T17:14:53Z

‎Explanation of the process used to install Xenomai

2014-02-20T17:12:45Z

‎Results

2014-02-20T17:06:49Z

‎Results

2014-02-20T16:59:34Z

‎Results

2014-02-20T16:52:27Z

‎Validate the installation

2014-02-20T16:38:34Z

‎Validate the installation

2014-02-20T16:37:44Z

‎Validate the installation

2014-02-20T16:08:02Z

‎Kernel greater than 2.6.29

2014-02-20T16:06:32Z

‎Explanation of the process used to install Xenomai

@@ Line 9: / Line 9: @@
 ==Installing Xenomai==
-{{Note|Xenomai has only be really tested on [[APF9328]] and [[APF27]] with 2.6.29 kernel. APF28 with 3.4 kernel and APF6 with 3.10.18 kernel are [[Talk:Xenomai|WiP]].}}
+{{Note|Xenomai has only be really tested on [[APF9328]] and [[APF27]] with 2.6.29 kernel. APF28 with 3.4 kernel and APF6/APF27 with 3.10 kernel are [[Talk:Xenomai|WiP]].}}
 ===Lazy users===
 * Starting from armadeus-6.0, some configurations are available to build Xenomai without configuring anything:
@@ Line 16: / Line 16: @@
 or
   $ make apf27xenomai_defconfig
 or
   $ make apf6xenomai_defconfig

@@ Line 7: / Line 7: @@
 Moreover, Xenomai provides a set of APIs (called "skins") that emulate traditional RTOSes such as VxWorks and pSOS and implement other APIs such as POSIX. Thus, porting third party real time applications to Xenomai is a fairly simple process.
-==Explanation of the process used to install Xenomai==
+==Installing Xenomai==
 {{Note|Xenomai has only be really tested on [[APF9328]] and [[APF27]] with 2.6.29 kernel. APF28 with 3.4 kernel and APF6 with 3.10.18 kernel are [[Talk:Xenomai|WiP]].}}
 ===Lazy users===
 * Starting from armadeus-6.0, some configurations are available to build Xenomai without configuring anything:
@@ Line 132: / Line 131: @@
   struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node)
+* You can configure the Xenomai kernel options from Linux menuconfig:
-*Then you can configure the Xenomai kernel options from Linux menuconfig:
 <pre class="host">
   $ make linux-menuconfig
@@ Line 178: / Line 177: @@
 </pre>
-Finally, compile everything:
+Finally, to build your changes:
 <pre class="host">
   $ make linux && make

@@ Line 216: / Line 216: @@
 ===Results===
+* latency (Sampling period: 100 us, test mode: periodic user-mode task, all results in microseconds)
 {| border="1" cellspacing="0" cellpadding="10"
 ! Board ( Linux / xenomai )

@@ Line 216: / Line 216: @@
 ===Results===
 {| border="1" cellspacing="0" cellpadding="10"
 ! Board ( Linux / xenomai )

@@ Line 223: / Line 223: @@
 |-
 | [[APF27]] (2.6.29 / 2.4.9)
-| 8.5 uS
+| 4.7 uS
-| 60.5 uS
+| 52.4 uS
-| 127.9 uS
+| 145.4 uS
 |}

@@ Line 203: / Line 203: @@
 * Now we can run the overall+performance test provided by Xenomai:
 <pre class="apf">
- $ xeno-test
+# modprobe xeno_irqbench
 </pre>
 * On APF27 you have to unlock access to debug registers before launching these tests:
@@ Line 209: / Line 214: @@
 BIOS> run unlock_regs
 </pre>
 ==Deinstalling or disabling Xenomai==

@@ Line 72: / Line 72: @@
 ===Kernel greater than 2.6.29===
-For kernels greater than 2.6.29, it's needed to suppress all patches in ''buildroot/packages/xenomai/'' and then modify URL and Adeos patch name:
 ====2.6.38====
 <pre class="config">
@@ Line 83: / Line 83: @@
 * If you plan to use a 2.6.38 kernel you have to delete the following patches :
   $ cd patches/linux/2.6.38.8
   $ rm 401-armadeus-fix_clock_tree.patch

@@ Line 11: / Line 11: @@
 {{Note|Xenomai has only be really tested on [[APF9328]] and [[APF27]] with 2.6.29 kernel. APF28 with 3.4 kernel and APF6 with 3.10.18 kernel are [[Talk:Xenomai|WiP]].}}
 The main steps are:
 * selection of Xenomai package on the Buildroot menuconfig,
@@ Line 30: / Line 41: @@
      Linux Kernel Extensions  --->
          [*] Adeos/Xenomai Real-time patch
-         (http://download.gna.org/adeos/patches/v2.6/arm/older/adeos-ipipe-2.6.29-arm-1.13-05.patch) Path/url for Adeos patch file
+         (ftp://ftp2.armadeus.com/armadeusw/adeos-ipipe-2.6.29-arm-1.13-05.patch) Path/url for Adeos patch file
 Target packages  --->
      Real-Time --->
          [*] Xenomai Userspace
 ...
 </pre>
-{{Note|It's possible to enable (or not) some skins in a first menu.}}
+{{Note|It's possible to enable (or not) some skins in Real-Time menu.}}
 * Exit and save your configuration
 * If you plan to use ''xeno-test'' (Xenomai performance tool) then CONFIG_ASH_GETOPTS should be activated in Busybox: