Mailing List Archive: MythTV: Users

Another possible frontend, the BeagleBoard

Index | Next | Previous | View Threaded

harford at gmail

Aug 7, 2008, 1:19 PM

Post #1 of 17 (1106 views)
Permalink

Another possible frontend, the BeagleBoard

Just saw this on the Digikey frontpage:
http://www.linuxjournal.com/content/beagleboard-149-linux-system

600MHz ARM, plus a DSP core that can do 720p.

It appears there are patches to ffmpeg to support the board.
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

greg at phaze

Aug 7, 2008, 1:23 PM

Post #2 of 17 (1094 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

> Just saw this on the Digikey frontpage:
> http://www.linuxjournal.com/content/beagleboard-149-linux-system
>
> 600MHz ARM, plus a DSP core that can do 720p.
>
> It appears there are patches to ffmpeg to support the board.

That does look cool, and from their own photos you
can see mythfrontend running on it, I highly doubt
you would be decoding 720p content on it, regardless
of whether or not it could display 720p.

Or are those patches to take advantage of some custom
mpeg2/4/h264 decoder I missed ? If so then I'll pick
one up right away to play with!

It would likely make a cool SDTV frontend...but without
some sort of hardware decoder ....

_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

gravityhammer at gmail

Aug 7, 2008, 1:30 PM

Post #3 of 17 (1094 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

On Thu, Aug 7, 2008 at 4:19 PM, Alex Harford <harford[at]gmail.com> wrote:
> Just saw this on the Digikey frontpage:
> http://www.linuxjournal.com/content/beagleboard-149-linux-system
>
> 600MHz ARM, plus a DSP core that can do 720p.
>
> It appears there are patches to ffmpeg to support the board.

No network? Ugh. I'd prefer not to have to run my network over USB.
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

brian.phillips at gmx

Aug 7, 2008, 4:01 PM

Post #4 of 17 (1086 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

Greg Estabrooks wrote:
>> Just saw this on the Digikey frontpage:
>> http://www.linuxjournal.com/content/beagleboard-149-linux-system
>>
>> 600MHz ARM, plus a DSP core that can do 720p.
>>
>> It appears there are patches to ffmpeg to support the board.
>
>
> That does look cool, and from their own photos you can see
> mythfrontend running on it, I highly doubt you would be decoding 720p
> content on it, regardless of whether or not it could display 720p.
>
>
> Or are those patches to take advantage of some custom
> mpeg2/4/h264 decoder I missed ? If so then I'll pick one up right
> away to play with!

A "DSP core" usually implies dedicated hardware decode and/or encode. If
you check the datasheet on a TMS320C6412, that seems to be the DSP chip
family they're using. The C64X referring to the last 5 characters in the
name of the chip. If they've patched ffmpeg to use the DSP chip rather than
the CPU, you can expect real-time decode and/or encode.

>
> It would likely make a cool SDTV frontend...but without some sort of
> hardware decoder ....
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users[at]mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

beww at beww

Aug 7, 2008, 4:08 PM

Post #5 of 17 (1086 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

Brian Phillips wrote:

> The C64X referring to the last 5 characters in the
> name of the chip. If they've patched ffmpeg to use the DSP chip rather than
> the CPU, you can expect real-time decode and/or encode.

Gee, and I figured it meant they were using a Commodore-64 Xpanded :-)

beww
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

greg at phaze

Aug 7, 2008, 5:19 PM

Post #6 of 17 (1075 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

> > mpeg2/4/h264 decoder I missed ? If so then I'll pick one up right
> > away to play with!
>
> A "DSP core" usually implies dedicated hardware decode and/or encode. If
> you check the datasheet on a TMS320C6412, that seems to be the DSP chip

Actually one of the videos if you just listen to the audio specifically
talks about using them as mythfrontends and that while there are
some problems with decoding video that it would be possible if someone developes the code for the DSP to use for decoding :)

Still pretty cool :)

_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

peterl at standingwave

Aug 8, 2008, 1:10 AM

Post #7 of 17 (1053 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

That would totally rock! Especially if somebody adds an ethernet
interface to the board...the hardware is open-source:

http://beagleboard.org/hardware/design

I suspect it wouldn't be too hard to shoehorn one in there if there
are available I/O pins.

-Pete

On Aug 7, 2008, at 5:19 PM, Greg Estabrooks wrote:

>>> mpeg2/4/h264 decoder I missed ? If so then I'll pick one up right
>>> away to play with!
>>
>> A "DSP core" usually implies dedicated hardware decode and/or
>> encode. If
>> you check the datasheet on a TMS320C6412, that seems to be the DSP
>> chip
>
>
> Actually one of the videos if you just listen to the audio
> specifically
> talks about using them as mythfrontends and that while there are
> some problems with decoding video that it would be possible if
> someone developes the code for the DSP to use for decoding :)
>
> Still pretty cool :)
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users[at]mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Mark.Jenks at nsighttel

Aug 8, 2008, 5:15 AM

Post #8 of 17 (1037 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

Why not a USB/Ethernet adapter. You would have cables coming from the
box anyways.

-Mark

> -----Original Message-----
> From: mythtv-users-bounces[at]mythtv.org
> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Peter Loron
> Sent: Friday, August 08, 2008 3:11 AM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Another possible frontend, the BeagleBoard
>
> That would totally rock! Especially if somebody adds an ethernet
> interface to the board...the hardware is open-source:
>
> http://beagleboard.org/hardware/design
>
> I suspect it wouldn't be too hard to shoehorn one in there if there
> are available I/O pins.
>
> -Pete
>
> On Aug 7, 2008, at 5:19 PM, Greg Estabrooks wrote:
>
> >>> mpeg2/4/h264 decoder I missed ? If so then I'll pick one up right
> >>> away to play with!
> >>
> >> A "DSP core" usually implies dedicated hardware decode and/or
> >> encode. If
> >> you check the datasheet on a TMS320C6412, that seems to be
> the DSP
> >> chip
> >
> >
> > Actually one of the videos if you just listen to the audio
> > specifically
> > talks about using them as mythfrontends and that while there are
> > some problems with decoding video that it would be possible if
> > someone developes the code for the DSP to use for decoding :)
> >
> > Still pretty cool :)
> >
> >
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users[at]mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users[at]mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

gravityhammer at gmail

Aug 8, 2008, 5:19 AM

Post #9 of 17 (1039 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

On Fri, Aug 8, 2008 at 8:15 AM, Mark A Jenks <Mark.Jenks[at]nsighttel.com> wrote:
> Why not a USB/Ethernet adapter. You would have cables coming from the
> box anyways.
>
> -Mark
>
>> -----Original Message-----
>> From: mythtv-users-bounces[at]mythtv.org
>> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Peter Loron
>> Sent: Friday, August 08, 2008 3:11 AM
>> To: Discussion about mythtv
>> Subject: Re: [mythtv-users] Another possible frontend, the BeagleBoard
>>
>> That would totally rock! Especially if somebody adds an ethernet
>> interface to the board...the hardware is open-source:
>>
>> http://beagleboard.org/hardware/design
>>
>> I suspect it wouldn't be too hard to shoehorn one in there if there
>> are available I/O pins.
>>
>> -Pete
>>
>> On Aug 7, 2008, at 5:19 PM, Greg Estabrooks wrote:
>>
>> >>> mpeg2/4/h264 decoder I missed ? If so then I'll pick one up right
>> >>> away to play with!
>> >>
>> >> A "DSP core" usually implies dedicated hardware decode and/or
>> >> encode. If
>> >> you check the datasheet on a TMS320C6412, that seems to be
>> the DSP
>> >> chip
>> >
>> >
>> > Actually one of the videos if you just listen to the audio
>> > specifically
>> > talks about using them as mythfrontends and that while there are
>> > some problems with decoding video that it would be possible if
>> > someone developes the code for the DSP to use for decoding :)
>> >
>> > Still pretty cool :)
>> >
>> >

Please don't top-post.

Is there any way of getting true gigabit speed over a USB Ethernet adapter?
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Mark.Jenks at nsighttel

Aug 8, 2008, 5:50 AM

Post #10 of 17 (1038 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

> -----Original Message-----
> From: mythtv-users-bounces[at]mythtv.org
> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Phil Bridges
> Sent: Friday, August 08, 2008 7:19 AM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Another possible frontend, the BeagleBoard
>
> On Fri, Aug 8, 2008 at 8:15 AM, Mark A Jenks
> <Mark.Jenks[at]nsighttel.com> wrote:
> > Why not a USB/Ethernet adapter. You would have cables
> coming from the
> > box anyways.
> >
> > -Mark
> >
> >> -----Original Message-----
> >> From: mythtv-users-bounces[at]mythtv.org
> >> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Peter Loron
> >> Sent: Friday, August 08, 2008 3:11 AM
> >> To: Discussion about mythtv
> >> Subject: Re: [mythtv-users] Another possible frontend, the
> BeagleBoard
> >>
> >> That would totally rock! Especially if somebody adds an ethernet
> >> interface to the board...the hardware is open-source:
> >>
> >> http://beagleboard.org/hardware/design
> >>
> >> I suspect it wouldn't be too hard to shoehorn one in there if there
> >> are available I/O pins.
> >>
> >> -Pete
> >>
> >> On Aug 7, 2008, at 5:19 PM, Greg Estabrooks wrote:
> >>
> >> >>> mpeg2/4/h264 decoder I missed ? If so then I'll pick
> one up right
> >> >>> away to play with!
> >> >>
> >> >> A "DSP core" usually implies dedicated hardware decode and/or
> >> >> encode. If
> >> >> you check the datasheet on a TMS320C6412, that seems to be
> >> the DSP
> >> >> chip
> >> >
> >> >
> >> > Actually one of the videos if you just listen to the audio
> >> > specifically
> >> > talks about using them as mythfrontends and that while there are
> >> > some problems with decoding video that it would be possible if
> >> > someone developes the code for the DSP to use for decoding :)
> >> >
> >> > Still pretty cool :)
> >> >
> >> >
>
> Please don't top-post.
>
> Is there any way of getting true gigabit speed over a USB
> Ethernet adapter?

USB 1.1 is 12Mb/s, USB 2.0 is 480Mb/s. So if you could find one (Never
saw one yet), you would only get half of the speed. Not saying 480
isn't better than 100mb, but I don't know if anyone is or will make
them.

-Mark
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Mark.Jenks at nsighttel

Aug 8, 2008, 5:52 AM

Post #11 of 17 (1037 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

> -----Original Message-----
> From: mythtv-users-bounces[at]mythtv.org
> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Mark A Jenks
> Sent: Friday, August 08, 2008 7:50 AM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Another possible frontend, the BeagleBoard
>
>
>
> > -----Original Message-----
> > From: mythtv-users-bounces[at]mythtv.org
> > [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Phil Bridges
> > Sent: Friday, August 08, 2008 7:19 AM
> > To: Discussion about mythtv
> > Subject: Re: [mythtv-users] Another possible frontend, the
> BeagleBoard
> >
> > On Fri, Aug 8, 2008 at 8:15 AM, Mark A Jenks
> > <Mark.Jenks[at]nsighttel.com> wrote:
> > > Why not a USB/Ethernet adapter. You would have cables
> > coming from the
> > > box anyways.
> > >
> > > -Mark
> > >
> > >> -----Original Message-----
> > >> From: mythtv-users-bounces[at]mythtv.org
> > >> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Peter Loron
> > >> Sent: Friday, August 08, 2008 3:11 AM
> > >> To: Discussion about mythtv
> > >> Subject: Re: [mythtv-users] Another possible frontend, the
> > BeagleBoard
> > >>
> > >> That would totally rock! Especially if somebody adds an ethernet
> > >> interface to the board...the hardware is open-source:
> > >>
> > >> http://beagleboard.org/hardware/design
> > >>
> > >> I suspect it wouldn't be too hard to shoehorn one in
> there if there
> > >> are available I/O pins.
> > >>
> > >> -Pete
> > >>
> > >> On Aug 7, 2008, at 5:19 PM, Greg Estabrooks wrote:
> > >>
> > >> >>> mpeg2/4/h264 decoder I missed ? If so then I'll pick
> > one up right
> > >> >>> away to play with!
> > >> >>
> > >> >> A "DSP core" usually implies dedicated hardware decode and/or
> > >> >> encode. If
> > >> >> you check the datasheet on a TMS320C6412, that seems to be
> > >> the DSP
> > >> >> chip
> > >> >
> > >> >
> > >> > Actually one of the videos if you just listen to the audio
> > >> > specifically
> > >> > talks about using them as mythfrontends and that while
> there are
> > >> > some problems with decoding video that it would be possible if
> > >> > someone developes the code for the DSP to use for decoding :)
> > >> >
> > >> > Still pretty cool :)
> > >> >
> > >> >
> >
> > Please don't top-post.
> >
> > Is there any way of getting true gigabit speed over a USB
> > Ethernet adapter?
>
> USB 1.1 is 12Mb/s, USB 2.0 is 480Mb/s. So if you could find
> one (Never
> saw one yet), you would only get half of the speed. Not saying 480
> isn't better than 100mb, but I don't know if anyone is or will make
> them.
>
> -Mark

I stand corrected...

http://www.newegg.com/Product/Product.aspx?Item=N82E16833314025&nm_mc=OT
C-Froogle&cm_mmc=OTC-Froogle-_-Network+-+Interface+Cards-_-Belkin-_-3331
4025
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

gravityhammer at gmail

Aug 8, 2008, 5:58 AM

Post #12 of 17 (1037 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

On Fri, Aug 8, 2008 at 8:52 AM, Mark A Jenks <Mark.Jenks[at]nsighttel.com> wrote:
>
>
>> -----Original Message-----
>> From: mythtv-users-bounces[at]mythtv.org
>> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Mark A Jenks
>> Sent: Friday, August 08, 2008 7:50 AM
>> To: Discussion about mythtv
>> Subject: Re: [mythtv-users] Another possible frontend, the BeagleBoard
>>
>>
>>
>> > -----Original Message-----
>> > From: mythtv-users-bounces[at]mythtv.org
>> > [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Phil Bridges
>> > Sent: Friday, August 08, 2008 7:19 AM
>> > To: Discussion about mythtv
>> > Subject: Re: [mythtv-users] Another possible frontend, the
>> BeagleBoard
>> >
>> > On Fri, Aug 8, 2008 at 8:15 AM, Mark A Jenks
>> > <Mark.Jenks[at]nsighttel.com> wrote:
>> > > Why not a USB/Ethernet adapter. You would have cables
>> > coming from the
>> > > box anyways.
>> > >
>> > > -Mark
>> > >
>> > >> -----Original Message-----
>> > >> From: mythtv-users-bounces[at]mythtv.org
>> > >> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Peter Loron
>> > >> Sent: Friday, August 08, 2008 3:11 AM
>> > >> To: Discussion about mythtv
>> > >> Subject: Re: [mythtv-users] Another possible frontend, the
>> > BeagleBoard
>> > >>
>> > >> That would totally rock! Especially if somebody adds an ethernet
>> > >> interface to the board...the hardware is open-source:
>> > >>
>> > >> http://beagleboard.org/hardware/design
>> > >>
>> > >> I suspect it wouldn't be too hard to shoehorn one in
>> there if there
>> > >> are available I/O pins.
>> > >>
>> > >> -Pete
>> > >>
>> > >> On Aug 7, 2008, at 5:19 PM, Greg Estabrooks wrote:
>> > >>
>> > >> >>> mpeg2/4/h264 decoder I missed ? If so then I'll pick
>> > one up right
>> > >> >>> away to play with!
>> > >> >>
>> > >> >> A "DSP core" usually implies dedicated hardware decode and/or
>> > >> >> encode. If
>> > >> >> you check the datasheet on a TMS320C6412, that seems to be
>> > >> the DSP
>> > >> >> chip
>> > >> >
>> > >> >
>> > >> > Actually one of the videos if you just listen to the audio
>> > >> > specifically
>> > >> > talks about using them as mythfrontends and that while
>> there are
>> > >> > some problems with decoding video that it would be possible if
>> > >> > someone developes the code for the DSP to use for decoding :)
>> > >> >
>> > >> > Still pretty cool :)
>> > >> >
>> > >> >
>> >
>> > Please don't top-post.
>> >
>> > Is there any way of getting true gigabit speed over a USB
>> > Ethernet adapter?
>>
>> USB 1.1 is 12Mb/s, USB 2.0 is 480Mb/s. So if you could find
>> one (Never
>> saw one yet), you would only get half of the speed. Not saying 480
>> isn't better than 100mb, but I don't know if anyone is or will make
>> them.
>>
>> -Mark
>
> I stand corrected...
>
> http://www.newegg.com/Product/Product.aspx?Item=N82E16833314025&nm_mc=OT
> C-Froogle&cm_mmc=OTC-Froogle-_-Network+-+Interface+Cards-_-Belkin-_-3331
> 4025

It probably just identifies at 1Gb - I'd doubt serious you'd get more
than even 100Mb out of it.
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

mtdean at thirdcontact

Aug 8, 2008, 6:31 AM

Post #13 of 17 (1030 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

On 08/08/2008 08:58 AM, Phil Bridges wrote:
> On Fri, Aug 8, 2008 at 8:52 AM, Mark A Jenks wrote:
>>> USB 1.1 is 12Mb/s, USB 2.0 is 480Mb/s. So if you could find
>>> one (Never
>>> saw one yet), you would only get half of the speed. Not saying 480
>>> isn't better than 100mb, but I don't know if anyone is or will make
>>> them.
>> I stand corrected...
>>
>> http://www.newegg.com/Product/Product.aspx?Item=N82E16833314025&nm_mc=OT
>> C-Froogle&cm_mmc=OTC-Froogle-_-Network+-+Interface+Cards-_-Belkin-_-3331
>> 4025
> It probably just identifies at 1Gb - I'd doubt serious you'd get more
> than even 100Mb out of it.

Especially with the bus/CPU on the beagleboard (or insert <name your
embedded device> here).

Mike

_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

harford at gmail

Aug 8, 2008, 9:03 AM

Post #14 of 17 (1022 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

On Fri, Aug 8, 2008 at 1:10 AM, Peter Loron <peterl[at]standingwave.org> wrote:
> That would totally rock! Especially if somebody adds an ethernet
> interface to the board...the hardware is open-source:
>
> http://beagleboard.org/hardware/design
>
> I suspect it wouldn't be too hard to shoehorn one in there if there
> are available I/O pins.

It doesn't look possible, at least to get one with decent performance.
Ethernet controllers that aren't PCI aren't very popular. I think
something like the SMSC 9115 would be able to hook up to the CPU, just
not on the board as designed. It's already supported in Linux
apparently.

Hopefully there will be a BeagleBoard 2.0 with Ethernet on board. :D

Alex
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

rogerheflin at gmail

Aug 9, 2008, 8:11 AM

Post #15 of 17 (961 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

Mark A Jenks wrote:
>
>
>> Please don't top-post.
>>
>> Is there any way of getting true gigabit speed over a USB
>> Ethernet adapter?
>
> USB 1.1 is 12Mb/s, USB 2.0 is 480Mb/s. So if you could find one (Never
> saw one yet), you would only get half of the speed. Not saying 480
> isn't better than 100mb, but I don't know if anyone is or will make
> them.
>

Given that the fastest disks (anyone has posted numbers on-even when the disk is
capable of 70MB/second+) on USB 2.0 only run 25MB/second one way, I would bet it
is more like 1/4 speed. I would expect you would need USB 2.0 just to get a
100Mbit to run full speed.

Roger
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Mark.Jenks at nsighttel

Aug 9, 2008, 8:29 AM

Post #16 of 17 (955 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

> -----Original Message-----
> From: mythtv-users-bounces[at]mythtv.org
> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Roger Heflin
> Sent: Saturday, August 09, 2008 10:11 AM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Another possible frontend, the BeagleBoard
>
> Mark A Jenks wrote:
> >
> >
> >> Please don't top-post.
> >>
> >> Is there any way of getting true gigabit speed over a USB
> >> Ethernet adapter?
> >
> > USB 1.1 is 12Mb/s, USB 2.0 is 480Mb/s. So if you could
> find one (Never
> > saw one yet), you would only get half of the speed. Not saying 480
> > isn't better than 100mb, but I don't know if anyone is or will make
> > them.
> >
>
> Given that the fastest disks (anyone has posted numbers
> on-even when the disk is
> capable of 70MB/second+) on USB 2.0 only run 25MB/second one
> way, I would bet it
> is more like 1/4 speed. I would expect you would need USB
> 2.0 just to get a
> 100Mbit to run full speed.
>
>
> Roger

According to the reviews here, 60mb/sec is the max that you can get out
of 2.0. But no one has ever seen anything over 40mb/sec.

Looks like one should stay away from the USB gb adapters, and stick with
the 100's.

-Mark
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Mark.Jenks at nsighttel

Aug 9, 2008, 8:29 AM

Post #17 of 17 (954 views)
Permalink

Re: Another possible frontend, the BeagleBoard [In reply to]

> -----Original Message-----
> From: mythtv-users-bounces[at]mythtv.org
> [mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of Roger Heflin
> Sent: Saturday, August 09, 2008 10:11 AM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Another possible frontend, the BeagleBoard
>
> Mark A Jenks wrote:
> >
> >
> >> Please don't top-post.
> >>
> >> Is there any way of getting true gigabit speed over a USB
> >> Ethernet adapter?
> >
> > USB 1.1 is 12Mb/s, USB 2.0 is 480Mb/s. So if you could
> find one (Never
> > saw one yet), you would only get half of the speed. Not saying 480
> > isn't better than 100mb, but I don't know if anyone is or will make
> > them.
> >
>
> Given that the fastest disks (anyone has posted numbers
> on-even when the disk is
> capable of 70MB/second+) on USB 2.0 only run 25MB/second one
> way, I would bet it
> is more like 1/4 speed. I would expect you would need USB
> 2.0 just to get a
> 100Mbit to run full speed.
>
>
> Roger

Oops, forgot the link..
http://www.newegg.com/Product/ProductReview.aspx?Item=N82E16833124176
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Index | Next | Previous | View Threaded

Interested in having your list archived? Contact lists@gossamer-threads.com