gt; semplicità e la convenienza del nuovo servizio per il tuo cellulare. Passa a
> Tiscali Mobile http://abbonati.tiscali.it/promo/tiscalimobile/
>
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> http://lists.gnu.org
>> ___
>> Discuss-gnuradio mailing list
>> Discuss-gnuradio@gnu.org
>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>>
>
> --
> View this message in context:
> http://www.nabble.com/BPSK-Demodulator-%28i
(rx_ack_log.txt)
> as follows:
>
> command = 'python send.py -d %d -s %d -c %d -n %d -f trash_file.txt >>
> rx_ack_log.txt' %(dest_addr, sender_addr, cmd, seqno)
> os.popen(command)
>
> thanks for the help!
> regards,
> -Sumit
>
>
>
;> Sanna
>>
>> ___
>> Discuss-gnuradio mailing list
>> Discuss-gnuradio@gnu.org
>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>>
>
>
> ___
> Discuss-gnuradio mailing li
g/mailman/listinfo/discuss-gnuradio
>>
>
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
--
"Don't complain; Just work harder" - Randy Pausch
Thomas Schmid, Ph.D. Candidate
Networked & Embedded Systems Laboratory (NESL)
University of California, Los Angeles (UCLA)
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
too. The
> important thing is that others in the community have the ability to
> modify, improve, and redistribute the code, and the BSD license
> certainly permits that.
>
> So I don't think there is actually any problem at all.
>
> ___
es be compatible, because this does not
> combine them into a larger work."
>
> ... to me, that states gr-ucla does not need to be under the GPL.
>
> Thoughts?
>
> - George
>
--
"Don't complain; Just work harder" - Randy Pausch
Thomas Schmid, P
think SDCC 2.8.0 on Intel-Mac is working. Thanks! - MLD
>
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
--
"Don't complain; Just work
install
Cheers,
Thomas
On Tue, Sep 30, 2008 at 11:27 AM, Michael Dickens <[EMAIL PROTECTED]> wrote:
> On Sep 30, 2008, at 11:50 AM, Thomas Schmid wrote:
>>
>> I tried to install GNU Radio on 10.5.5, but it didn't work. Shortly
>> after the install, I had a HD crash, an
nyone
> is using Intel-Mac, I'd like to hear your experiences using SDCC 2.8.0.
>
> Thanks! - MLD
>
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> http://lists.gnu.org/mailman/listinfo/discuss-gnurad
your application is not predictable or constant.
>
> Chris
>
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
--
"Don't complain; Just work harder" - Randy Pausch
Thomas Schmid, Ph.D.
Hi Ranga
On 12/8/06, M. Ranganathan <[EMAIL PROTECTED]> wrote:
Hello!
I am a newcomper to SDR. I have scoured the mailing list but I cant find
a definitive answer on the following questions (I suppose its been asked
but I cant seem to find answers in the archives at any rate):
1. Can anybody
Hi Shravan,
That is really cool. Can you share with us your modifications to the
script and the command line you used? I would like to try this at my
home where I see like 20 APs from my neighbors and compare it to the
plot of the wi-spy.
Thomas
On 12/5/06, Shravan Rayanchu <[EMAIL PROTECTED]>
On 12/5/06, Dheeraj S. Aralumallige <[EMAIL PROTECTED]> wrote:
Hi !!
Thank you very much for the help!!!
But still I have one question. (See the highlighted part)
Is there any example program to just detect the presence of wi-fi or
Bluetooth.
I think Tom answered this question really w
From Ettus Inc.'s FAQ you can read that the BasicTX goes only up to
about 50MHz because the DACs in the USRP run at 128MS/s. You would
need some other hardware to upsample your output to 70MHz.
Thomas
On 12/1/06, Scott Meuleners <[EMAIL PROTECTED]> wrote:
I am working on a project for a class
Hi Eric,
Thank you for the clarifications. I traced the code back to
usrp_basic.cc, but got lost there. I will have a look at
fusb_linux.{h/cc}.
Thomas
On 11/29/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
On Wed, Nov 29, 2006 at 01:46:14PM -0800, Thomas Schmid wrote:
> Hi all,
>
&
Hi all,
What do the parameters fusb_nblock and fusb_block_size exactly do in
how data is transmitted over the USB to the USRP? I assume that
fusb_nblock indicates how many blocks we have in each USB packet, and
fusb_block_size indicates how big one block is.
My question is, if there is less data
Hi Chris,
Thank you for that note. I didn't realize that attachments don't go
into the mail archive.
Following is a link which should point to the latest version of that document:
http://acert.ir.bbn.com/viewvc/gr-ucla/trunk/doc/usrp.pdf?revision=HEAD
Cheers,
Thomas
On 11/29/06, Chris Stanke
Hi Luca,
Did you compile and install the block? If not, did you follow this howto:
http://www.gnu.org/software/gnuradio/doc/howto-write-a-block.html
Cheers,
Thomas
On 11/21/06, Luca Bertelli <[EMAIL PROTECTED]> wrote:
Hello! We are two students who are trying to run the example
"how-to-write-
On 11/15/06, Daniel O'Connor <[EMAIL PROTECTED]> wrote:
On Thursday 16 November 2006 16:22, Robert McGwier wrote:
> The Nividia GPU's have fft and blas running on them. They are doing
> teraflops and the tools/SDK are available under NDA. They do indeed
> have multiply , accumulate, etc.
ATI/
On 11/14/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
On Tue, Nov 14, 2006 at 10:04:46PM -0800, Thomas Schmid wrote:
> Hi Eric,
>
> I did new test today, and you were right. I had a lot of underrun.
> Therefore, I increase fusb_nbloccks to 8 and fusb_block_size to 2048.
> E
Hi Eric,
I did new test today, and you were right. I had a lot of underrun.
Therefore, I increase fusb_nbloccks to 8 and fusb_block_size to 2048.
Even with this setting, I got some underruns, but they were not often
at all. Here are the new numbers (for the code in trunk):
Decimation, Nice, Real_
Hi Eric,
On 11/13/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
On Mon, Nov 13, 2006 at 05:03:17PM -0800, Thomas Schmid wrote:
> I am currently investigating different USRP delays. Some of them I can
> explain, others not. For example, I see an average delay of 6.2ms
> while rece
delay for burst transmission with a similar
technique to be in the order of a couple of hundred \mu s. This is why
I am wondering about the large RX delay.
Thomas
On 11/13/06, Daniel O'Connor <[EMAIL PROTECTED]> wrote:
On Tuesday 14 November 2006 11:33, Thomas Schmid wrote:
&g
I am currently investigating different USRP delays. Some of them I can
explain, others not. For example, I see an average delay of 6.2ms
while receiving data from the USRP at a sample rate of 8MHz (short
real samples, i.e. I am using the usrp.source_s).
Here is my setup:
- I have a function genera
On 11/12/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
On Sun, Nov 12, 2006 at 08:43:15PM +, Newell Jensen wrote:
> Eric,
>
> I am running a SuSE 10.0 distribution. I looked throughout the
> repsoitories, on the DVD, as well as the suse.org site for package
> downloads and didn't find anything
Hi Eric,
I did some calculations and something doesn't add up. As I mentioned
in my last email, I am using usrp.sink_s. Thus, my samples are real
shorts (16 bit). I verified the buffer size by printing out the buffer
allocation size in gnuradio-core/src/lib/runtime/gr_buffer.cc. The
size is 32KB.
On 11/8/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
On Wed, Nov 08, 2006 at 03:14:01PM -0800, Thomas Schmid wrote:
> I set the fusb buffering for the square wave test, additional to
> setting real time scheduling. The result is similar. For different
> decimation factors I get
On 11/8/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
On Wed, Nov 08, 2006 at 02:06:11PM -0800, Thomas Schmid wrote:
> Hi all,
>
> I am currently trying to measure delays on the USRP and found some
> interesting things. I wanted to see if others have similar results:
>
>
Hi all,
I am currently trying to measure delays on the USRP and found some
interesting things. I wanted to see if others have similar results:
- First I measured the round trip time of my IEEE 802.15.4
implementation. I have to computers, one runs a ping application, the
other one a pong. The av
Hi Tom
On 10/25/06, Tom Rondeau <[EMAIL PROTECTED]> wrote:
First, I assume you meant the second to last line to read:
> self.connect(self.multiplicator, self.amp, self.u)
No, this is exactly the problem. Even if I directly hook up the
interpolator1 to the USRP, it doesn't work. So, hooking u
Hi Everyone,
I have some strange behavior of gnuradio while trying to do an
upconversion and multi-channel transmitter. I am currently trying to
have two packet transmitters send packets simultaniously on two
different radio channels. For this, I upconvert one of the
transmitters and add the two
Are you sure you get enough input items for the general_work? try to
print ninput_items and see what the result is. It might be that you
get always less than the 7 items you need to initialize the algorithm.
Thomas
On 10/10/06, Dawei Shen <[EMAIL PROTECTED]> wrote:
Hello Everyone
I have got a
I tested on my macbook with XCode 2.3. I installed libusb 0.1.12_0
with darwinports and got the latest GNURadio code. Starting the
benchmark_usb.py failed as before. So no luck here.
Thomas
On 10/6/06, Michael Dickens <[EMAIL PROTECTED]> wrote:
As long as you have the XCode 2.3 disk image, you
Hi Michael
I have XCode 2.2.1 on my macbook and the USRP is not working. I agree,
this is very, very strange..
Thomas
On 10/5/06, Michael Dickens <[EMAIL PROTECTED]> wrote:
* I can easily show on our brand new 20" Intel-iMac that a
"recent" (Wednesday) SVN checkout of GNU Radio will compile, c
Hi Michael,
Yes, I do have a MacMini running the USRP. It works without any
problems. I run the latest OSX, 10.4.7 and installed everything with
darwin ports.
My Macbook does not work under Mac OS X, but when I run linux on it
(Ubuntu) gnuradio works.
Thomas
On 9/29/06, Michael Dickens <[EMAIL
You are correct. The signals need to be at the same sampling rate for
the interleaver to work. We are currently working on a modification of
that such that you can have different rates on both channels.
Thomas
On 9/18/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
Hi all,
I have been playin
Hi Everyone,
I have a question about the gnuradio scheduler and the interleaver block.
Let's assume that we have an interleaver block with two inputs and one
output. Now, is it correct that the gnuradio scheduler runs the
interleaver block only if there is data on both interleaver-input
channels
ack (most recent call last):
.
Ryan
On 8/10/06, Thomas Schmid <[EMAIL PROTECTED]> wrote:
> Nope, no news. My sollution was to install Ubuntu on my macbook. That
> works just fine.
>
> I will try XCode 2.4. Didn't know that it is released.
>
> Thomas
>
> On 8/10/06
On 8/31/06, Carlo E. Prelz <[EMAIL PROTECTED]> wrote:
Subject: Re: [Discuss-gnuradio] Theory - GSM traffic detection with a
USRP board
Date: mer 30 ago 06 02:41:01 +0200
They have been created as a result of the compilation of a CVS
repository source base, updated just before
Hi everyone,
I have a little conceptual problem I don't seem to be able to solve. I
want to have two packet transmitters, one for the daughterboard in
slot A, the other one for the daughterboard in slot B. The two
daughterboards work at different frequencies and use different
protocols, i.e., the
I have a question which confuses me all the time. If I connect a
RFX400 (or RFX2400) to the USRP and receive the samples from it on the
PC, what are those samples exactly? Are they in baseband? Or are they
still in the intermediate frequency?
Thank you very much,
Thomas
___
I think someone should update the gnuradio website
http://www.gnu.org/software/gnuradio/ and point to the directions for
trac. It still shows how to get the CVS code, especially since that
code will soon be unavailable.
Cheers,
Thomas
___
Discuss-gnu
n
Intel-MacBook issue, since it doesn't seem to pop up for the MacBook
Pro, nor Intel-mini, nor Intel-iMac (or, at least I haven't heard of
such a thing).
I doubt it will help, but you can try XCode 2.4 now that it's
released. - MLD
On Aug 4, 2006, at 5:54 AM, Thomas Schmid wrote:
>
I downgraded my XCode to 2.2.1 but it didn't help. Still, the USRP
does not work. I also tried all the other suggestions, programming in
Mac OS X and look if it works under Linux, but doesn't work either.
Fresh installing GnuRadio, but still doesn't work.
I will now try to reinstall my MacOS on a
Sorry for the confusion, usually I separate the make and make install
and only use sudo on the make install, but sometimes, especially if
you work on multiple machines at the same time, you get a little bit
lazy ;)
So, I checked out a new version and did the make seperate from the
install, and it
Ok, I have some more results from tests I just made:
- On the same machine (macbook) I installed an Ubuntu as dualboot
system. There, the USRP works just fine, i.e., I can run the different
tests and benchmark scripts without any problems.
- Next, I reboot into mac os x, without unplugging or powe
I am currently rebuilding everything on a mac mini and post the
failing logs here...
Thomas
On 8/1/06, Greg Troxel <[EMAIL PROTECTED]> wrote:
"Thomas Schmid" <[EMAIL PROTECTED]> writes:
> A quick note of caution: I found out that sometimes compiling with -j2
>
I agree, we should not automate this, though a note in a "how to
install on a macbook" would be nice since a lot of people don't know
about that option.
A quick note of caution: I found out that sometimes compiling with -j2
gets errors, then restarting the process without -j2 compiles without
any
homas
On 7/30/06, Thomas Schmid <[EMAIL PROTECTED]> wrote:
Hi Jan,
I have two USRPs to test with, one a Rev 3 and one a Rev 4.1. Both
have the same behavior, except that one shows version 0.04 and the
other 0.02 when I first plug them in (in the system profiler). Then, I
run test_usrp_stand
ot;, the version changes to 1.02 and
there is a "serial number" string of all zeroes.
Does yours show the same information in the System Profiler? Also, what
does it say if you go to the usrp directory and run a "svn up"? Mine
says "At revision 832."
Cheers,
Jan
Th
Forgot to mention (and might be relevant), I am using libusb 0.1.12
from darwinports.
Thomas
On 7/29/06, Thomas Schmid <[EMAIL PROTECTED]> wrote:
I just installed gnuradio on my macbook and I wanted to test the usrp
but got the same error as Sam:
@ enter_search
802_15_4_pkt: waiti
I just installed gnuradio on my macbook and I wanted to test the usrp
but got the same error as Sam:
@ enter_search
802_15_4_pkt: waiting for packet
usrp_basic_rx: failed to start end point streaming
Next I tried to use the benchmark_usb.py file and I got this error:
Testing 2MB/sec... usrp_open
Hi Michael,
Thanks a lot for writing that install guide for Mac OS X. It works
great. Here some updates on my experience with it on a Macbook 2GHz
with XCode 2.3:
- The USRP section is outdated. You don't need to download it
seperatly since the checkout script has been changed.
- Since the new M
No, you don't need any username/password. The code is in the section
SVN. Here is a direct link to it:
http://acert.ir.bbn.com/svn/?group=gr-ucla
Thomas
On 7/22/06, Antonio Fedon <[EMAIL PROTECTED]> wrote:
Thomas Schmid <[EMAIL PROTECTED]> escribió:
Hi Luis,
I impleme
Hi Luis,
I implemented exactly that. Here is the code:
http://acert.ir.bbn.com/projects/gr-ucla/
Thomas
On 7/21/06, Luis Simoes <[EMAIL PROTECTED]> wrote:
Hi all,
I will implement a ZigBee transceiver on Gnuradio using channels in the 2.4GHz
ISM band. I studied a bit the IEEE standart and I
Hi Matt,
What tools are you using to do the FPGA programming? And which tools
did you use to layout the USRP motherboard? We have the mboard files
from www.ettus.com, though we are not really sure with what
application we can use them (except the pdf/ps files...)
Thank you,
Thomas
___
How does your physical setup look like?, i.e., how did you connect the
RX to the TX? There were a couple of messages on this mailing list
about that a couple of days ago...
Cheers,
Thomas
On 6/22/06, Lee Patton <[EMAIL PROTECTED]> wrote:
I'm trying to do a simple loopback using the RFX-2400.
On 6/20/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
On Tue, Jun 20, 2006 at 10:44:05AM -0700, Eric Blossom wrote:
> On Tue, Jun 20, 2006 at 10:29:33AM -0700, Thomas Schmid wrote:
> > Hi Everyone,
> >
> > - Right now, we need to send an additional 100 byte at the end
Hi Everyone,
Over the last couple of months I developed a IEEE 802.15.4 physical
layer block. It is capable of receiving and transmitting to IEEE
802.15.4 compliant hardware. The block implements the physical layer,
i.e., it can en- and decode the messages. The block itself does not
comply with I
Hi,
I was wondering why can the USRP "only" achieve 32 MByte/s, i.e. 256
Mbit/s whereas the USB 2.0 specifications are 480 MBit/s? The 32
Mbyte/s is mentioned in several earlier posts on the gnuradio mailing
list archive and in the BBN report (freebsd section).
Thanks,
Thomas
Hi,
I have a question about the basic RX/TX boards. What should I see if I
hook the basic TX board to an oscilloscope if I send out a QPSK
signal? Here is what I do:
- I generate a QPSK signal in GnuRadio
- I send the signal to a complex file source and the signal looks right
- I send the signal
Hi,
I experience some problems with my USRP and the RFX2400. When I run a
simple program to capture data samples from the USRP it locks after
some time (minutes to hours). There is no crash, it just stops
receiving samples. I attached the code to this email so others can try
it out to see if it i
ks for your thoughtful/helpful reply,
-Michael Ford-
On 5/20/06, Thomas Schmid <[EMAIL PROTECTED] > wrote:
> Hi Michael,
>
> GNURadio is under active development. Therefore, file names can change
> and thus tutorials don't reflect the latest changes until they ar
Hi Michael,
GNURadio is under active development. Therefore, file names can change
and thus tutorials don't reflect the latest changes until they are
updated. The two file syou found, std_2rxhb_2tx.rbf and
std_4rx_0tx.rbf, are two different versions for the USRP firmware. the
first one has two rx
Hi,
I am trying to profile my code with gprof. I configured and compiled
my modules with the --with-gprof option. Next, I run my test script
which uses these modules and the script returns without any errors (I
use a filesource to deliver the data to my modules). Now I should have
the gmon.out fi
.
Again questionable if we should decode that as a 0 or did the signal
just over-swing into the negative area.
Could it be a problem with the RFX2400 daughter boards? Any
suggestions on how to deal with this problem are appreciated.
Thomas
On 5/3/06, Thomas Schmid <[EMAIL PROTECTED]> wrot
Here some more details on what I try to do: I try to decode a message
sent out by a chipcon CC2420 in the 2.4GHz ISM band. The over all
symbol rate is 2Mchip/s, thus I sample at 4MHz.
Thomas
On 5/2/06, Matt Ettus <[EMAIL PROTECTED]> wrote:
Thomas Schmid wrote:
> Hello,
>
> Did any
Hello,
Did anyone write blocks for MSK de-/modulation? I couldn't find
anything in the gnuradio-core directory and I wanted to ask before I
start implementing it in order to avoid duplicated work.
Thomas
___
Discuss-gnuradio mailing list
Discuss-gnur
Hi,
I investigated a little bit into the usrb_oscope example and I
couldn't find the implementation of the trigger. Hitting the
start/stop trigger button just stop's the gui. Is that correct? Or am
I missing something?
Thomas
___
Discuss-gnuradio mail
Hi Eric
On 4/3/06, Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Mon, Apr 03, 2006 at 10:22:01AM -0700, Thomas Schmid wrote:
> > Hi Lee,
> >
> > We are also looking into similar things, though we don't have the
> > power constraints which will be difficult to
Hi Lee,
We are also looking into similar things, though we don't have the
power constraints which will be difficult to meet. We are currently
looking at a micro-atx solution with an amd geod nx processor since
this one is compatible with the amd athlon mobile. this should make it
easy to have a ru
./checkout -x gr-gsm-fr-vocoder
works for me...
Thomas
On 3/31/06, Marcus Leech <[EMAIL PROTECTED]> wrote:
> So, is Savannah hosed this evening? I'm trying to do a full checkout,
> and it keeps hanging in various places...
>
>
>
> ___
> Discuss-gnurad
Hi Eric,
I tried the new scripts today. Updating of my old distribution with
cvs up didn't work. It had some problems with the parallel to serial
scripts which were removed and didn't want to compile. Thus, I did a
fresh checkout of everything and the build worked flawlessly. This was
on my debian
You can use top and free to get this information.
Thomas
On 3/31/06, Erik Tollerud <[EMAIL PROTECTED]> wrote:
> So it does: P4 1.8 GHz
>
> On 3/31/06, Thomas Schmid <[EMAIL PROTECTED]> wrote:
> > cat /proc/cpuinfo
> >
> > usually gives you all you want
cat /proc/cpuinfo
usually gives you all you want to know about your processor.
Thomas
On 3/31/06, Matt Ettus <[EMAIL PROTECTED]> wrote:
> Erik Tollerud wrote:
> > I suppose that would be helpful...
> >
> > I'm using the CVS gnuradio (as of about a week ago)
> > running under FC5
> > wxPython ver
This might help you further:
http://webpages.charter.net/cswiger/plotting.html
Or if you prefere matlab/octave, Dawei Shen's website
http://www.nd.edu/~dshen/GNU/
has an FAQ which gives some information.
Thomas
On 3/22/06, Angilberto Muniz Sb <[EMAIL PROTECTED]> wrote:
> Can anybody show how
Hi Luis,
I have the code to decode mica2 motes. It is not perfect yet since I
still use the correlator and I would like to move over to the gmsk way
with proper synchronisation. But it works ;)
In my case, the cc1k sends a synchronisation sequence of 0x99 to
which I synchronize the correlator
I just tried it out under Mac OS X 10.4 and it works, kind of. When I
try mono_tone.py, I can hear the tone, but there is some breaks in
between and the console spits out "UpUpUp". A sample output is at the
end of the email. multi_tone.py on the other hand didn't work at all.
It quit with a invali
ncy is already 0. Any ideas why
this happens?
Thomas
On 3/12/06, Stephane Fillod <[EMAIL PROTECTED]> wrote:
> On Sun, Mar 12, 2006 at 07:14:15PM -0800, Thomas Schmid wrote:
> > I tried your code on Mac OS X 10.4 and I get pretty far (everything
> > compiles and isntalls after
I tried your code on Mac OS X 10.4 and I get pretty far (everything
compiles and isntalls after some hacking), but when I execute an audio
example, I get this error:
19:04 [EMAIL PROTECTED]:~/gnuradio/gr-build/gnuradio-examples/python/audio$
./dial_tone.py
Traceback (most recent call last):
File
Hi Stephane,
Is it possible that the portaudio patch of yours is missing the
portauido.pc target? I get errors if I want to install it, i.e., it
tells me that there is no portaudio.pc target.
Thomas
On 3/12/06, Stephane Fillod <[EMAIL PROTECTED]> wrote:
> On Sun, Mar 12, 2006 at 02:36:21PM -050
Just yesterday I was considering writing a gr-audio-mac block. But now
I will certainly not do that. So, if you guys need mac os x testers, I
am more than happy to help.
Thomas
On 3/12/06, Stephane Fillod <[EMAIL PROTECTED]> wrote:
> On Sun, Mar 12, 2006 at 01:29:55PM -0500, Robert McGwier wrote:
Isn't one of the problems that Linux is not a real time os, i.e.,
exact time scheduling is impossible? As far as I know, linux timers
have an accuracy of 1ms (i.e. 1 jiffie in the kernel). If you want to
have shorter delays, you use the udelay function and do a busy wait.
Or is there something that
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