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<font face="Times New Roman, Times, serif">These are all
confidential and its highly unlikely that you will get any
information. Based on our experience, we used to modify these
registers, only when we configured the BT-Coexistence. For
Continuous TX, all you need is only the manufacturing commands.
The standard firmware should support these manufacturing commands.
If not, you need to get the manufacturing firmware from the
vendor.<br>
<br>
- Alagu Sankar<br>
</font><br>
On 02/24/2011 11:38 PM, Amyuni Development Team wrote:
<blockquote cite="mid:004201cbd44d$c85f7320$591e5960$@com"
type="cite">
<pre wrap="">We've done a bit of progress on this issue. Now we have the wlanconfig utility
which allows us to read/write the MAC, BPP and RF registers. Is there any
documentation on what values to write to these registers for continuous
transmission from the WiFi chip?
-----Original Message-----
From: Vivek Raghunathan [<a class="moz-txt-link-freetext" href="mailto:nkrvivek@gmail.com">mailto:nkrvivek@gmail.com</a>]
Sent: Monday, February 14, 2011 9:29 AM
To: Amyuni Development Team
Cc: <a class="moz-txt-link-abbreviated" href="mailto:libertas-dev@lists.infradead.org">libertas-dev@lists.infradead.org</a>
Subject: Re: Broadcasting using Marvell 88W8686 Linux Driver
On Sat, Feb 12, 2011 at 3:05 PM, Amyuni Development Team
<a class="moz-txt-link-rfc2396E" href="mailto:devteam@amyuni.com"><devteam@amyuni.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
Hello,
We need to know if there is a command to broadcast continuous modulated
waveform using the libertas driver for Marvell 88W8686 (SDIO driver.) The
broadcast is used in test laboratories to obtain FCC certification on any
product that contains this WiFi chip. The idea is to continuously broadcast
a constant signal on a given channel and measure the results using spectrum
analyzers.
</pre>
</blockquote>
<pre wrap="">
You need to get an utility called "wlanconfig" from your wifi vendor
(either from Marvell directly or a third party module maker) and port
couple of iwpriv API's such as rdmac, wrmac, rdbbp, wrbbp to read and
write the MAC, BBP and RF registers from the card. These commands
take one parameter that specifies the offset location that is to be
read or written.
</pre>
<blockquote type="cite">
<pre wrap="">
We tried using the Linux netcat command to do a broadcast, but this gave us
only an approximation of the required signal which must be perfectly
continuous.
</pre>
</blockquote>
<pre wrap="">
Unless you port those iwpriv commands, you can't achieve continuous
transmission required for FCC certification. Netcat acts as a simple
utility which reads and writes data across network connections, using
TCP or UDP transport protocols. It doesn't change the chip firmware
behavior in any manner. You can contact any third party or a libertas
developer to do the porting for you, if you don't have the resources
to do that.
</pre>
<blockquote type="cite">
<pre wrap="">
Thank you for your help.
Amyuni Dev. Team
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</pre>
</blockquote>
<pre wrap="">
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</pre>
</blockquote>
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