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258 lines
6.7 KiB
HTML
258 lines
6.7 KiB
HTML
<TITLE>Production and testing: Software setup</TITLE>
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<BODY>
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<HTML>
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<H1>Production and testing: Software setup</H1>
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Before performing any production tests, various pieces of software
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need to be installed on Ben and PC, and configuration settings
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<H2>PC software installation</H2>
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<H3>Install ben-wpan tools</H3>
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<H3>Install test scripts</H3>
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<H3>Install firmware binary</H3>
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The binary of the application running on <B>atusb</B> is transferred from
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the PC. To download a pre-compiled version, use this command:
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<PRE>
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wget -O atusb.bin \
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http://downloads.qi-hardware.com/people/werner/wpan/bindist/atusb-de72af351f661b538add81cbc9965278a2f8c40c.bin
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</PRE>
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Instructions for building the binary from sources are
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<A href="http://projects.qi-hardware.com/index.php/p/ben-wpan/source/tree/master/atusb/fw/README">here</A>.
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<H3>Register Ben host name</H3>
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To simplify accessing the Ben via TCP/IP, its IP address should be
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registered in the hosts file on the PC. If the Ben is running OpenWrt,
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use the following command:
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<PRE>
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echo 192.168.254.101 ben >>/etc/hosts
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</PRE>
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<P>
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If the Ben is running Jlime, the address would be as follows:
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<PRE>
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echo 192.168.1.202 ben >>/etc/hosts
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</PRE>
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<P>
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If using the same PC with Bens running OpenWrt and Jlime, one may choose
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different host names depending on the distribution, and adapt the commands
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used in the production and testing process accordingly. For example,
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<PRE>
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echo 192.168.254.101 ben >>/etc/hosts
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echo 192.168.1.202 jlime >>/etc/hosts
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</PRE>
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<H3>Customize test scripts</H3>
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<H2>Ben software installation</H2>
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<H3>Password-less remote access</H3>
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To enable password-less remote access from the PC, set up network
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access to the Ben and run the following command:
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<PRE>
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ssh ben 'cat >>/etc/dropbear/authorized_keys' <~/.ssh/id_rsa.pub
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</PRE>
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<H3>Install ben-wpan tools</H3>
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<H3>Install avrdude</H3>
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The <B>atusb</B> boot loader is flashed using <B>avrdude</B>. A pre-compiled
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static binary (suitable for OpenWrt and Jlime) can be installed by running
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the following two command on the Ben:
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<PRE>
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wget http://downloads.qi-hardware.com/people/werner/wpan/bindist/avrdude-5.10-de72af351f661b538add81cbc9965278a2f8c40c.tar.gz
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tar -xz -C / -f avrdude-5.10-de72af351f661b538add81cbc9965278a2f8c40c.tar.gz
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</PRE>
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Instructions for building <B>avrdude</B> from sources are
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<A href="http://projects.qi-hardware.com/index.php/p/ben-blinkenlights/source/tree/master/avrdude/README
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">here</A>.
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<H3>Install boot-loader binary</H3>
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The binary of the boot loader running on <B>atusb</B> is transferred from
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the Ben. To download a pre-compiled version, use this command:
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<PRE>
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wget -O boot.hex \
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http://downloads.qi-hardware.com/people/werner/wpan/bindist/boot-de72af351f661b538add81cbc9965278a2f8c40c.hex
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</PRE>
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Instructions for building the binary from sources are
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<A href="http://projects.qi-hardware.com/index.php/p/ben-wpan/source/tree/master/atusb/fw/README">here</A>.
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<H2>Ben system setup</H2>
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The configuration setting described in this section are lost on each
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reset or reboot and either need to be entered again. Alternatively,
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a setup script running at boot time can be written.
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<!-- ---------------------------------------------------------------------- -->
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<H3>Enable network access</H3>
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Once the Ben has booted and started USB networking, the interface
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on the PC side is configured as follows:
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<PRE>
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ifconfig usb0 192.168.254.100 up
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</PRE>
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<P>
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These are the settings for OpenWrt, assuming the network device is
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called "usb0". If using Jlime, the command would be as follows:
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<PRE>
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ifconfig usb0 192.168.1.200 up
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</PRE>
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<!-- ---------------------------------------------------------------------- -->
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<H3>Silence other 8:10 card users</H3>
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Before running any of the ben-wpan utilities, other users of the 8:10
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card slot have to be disabled. In a Ben running the regular OpenWrt or
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Jlime distribution, the only such user that is automatically started
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is the MMC kernel driver. The following command disables it:
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<PRE>
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echo jz4740-mmc.0 >/sys/bus/platform/drivers/jz4740-mmc/unbind
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</PRE>
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<P>
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If a WPAN-enabled kernel has been installed, the AT86RF230 driver takes
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the place of the MMC driver. To disable it, run
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<PRE>
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echo spi2.0 >/sys/bus/spi/drivers/at86rf230/unbind
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</PRE>
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<!-- ---------------------------------------------------------------------- -->
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<H3>Start atrf-proxy</H3>
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On the Ben, launch the proxy daemon. We pass the option -b to background it:
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<PRE>
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atrf-proxy -b
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</PRE>
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<!-- ====================================================================== -->
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<H2>Test profiles</H2>
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Some of the functional tests measure characteristics that are strongly
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influenced by the test setup. It is therefore not possible to provide
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universally applicable reference values, but they have to be measured
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in the actual test environment.
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<!-- ---------------------------------------------------------------------- -->
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<H3>Clock count (atben only)</H3>
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Insert a known to be good <B>atben</B> board and run the following
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command directly on the Ben to record the reference value for the
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clock count with an accuracy of about +/−20 ppm:
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<PRE>
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atrf-xtal 1000 >ben.xtal
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</PRE>
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<P>
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This takes about 5 seconds.
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<P>
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Note that the result depends on the tolerance of the crystal in the Ben
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and is also affected by temperature. Good accuracy can therefore
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only be obtained if this measurement is performed individually on each
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Ben, and if a stable temperature is maintained.
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<!-- ---------------------------------------------------------------------- -->
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<H3>Signal strength</H3>
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<P>
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<HR>
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Up: <A href="index.html">Production and testing</A>
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Next: <A href="flash.html">Flashing (<B>atusb</B> only)</A>
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<HR>
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Last update: 2011-05-19 <I>Werner Almesberger</I>
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<HR>
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</BODY>
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</HTML>
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