[Discuss-gnuradio] GRC taps as parameter in hierarchical block?

2015-03-04 Thread Christopher Friedt
Hi list, I'm looking for a pointer in using GRC when creating a hierarchical block. The hierarchical block has an parameter block of type None with ID 'taps'. The Value of the block is 'filter.firdes.root_raised_cosine( nfilts, nfilts, 1.0, 0.35, 11 * samples_per_symbol * nfilts )'. nfilts and sa

Re: [Discuss-gnuradio] FOSDEM attendee? Re: 802.15.4 CSS PHY

2015-02-05 Thread Christopher Friedt
Will do! © Sent from my Android ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] FOSDEM attendee? Re: 802.15.4 CSS PHY

2015-02-05 Thread Christopher Friedt
y complete yet (e.g. preamble and PHR are dropped in the receiver > because their content is assumed to be known) and endianness might be wrong > at some points. But I will try to fix that in the next weeks. > > Feel free to contact me if you have any questions! > > Greetings >

[Discuss-gnuradio] FOSDEM attendee? Re: 802.15.4 CSS PHY

2015-02-01 Thread Christopher Friedt
Hi list, this is just a shot in the dark, but I forgot to get the name of an attendee during the Internet of #allthethings talk. If you are, or know who is, the person who said he had implemented an 802.15.4 CSS PHY in the question period, please get in touch with me or pass on the message. It w

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
On Sat, Jan 3, 2015 at 1:38 PM, Marcus Müller wrote: > Then: If I understand you correctly, what you have is an input stream of > unsigned (32 bit)ints, each int containing exactly one bit of information: > 0x, 0x0001, 0x0001, 0x, and so forth. > This format is especially w

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
On Sat, Jan 3, 2015 at 1:38 PM, Marcus Müller wrote: > as you noted, this block has a fixed relation between in- and output; > thus, you can use the sync_interpolator [1] to get rid of the need to > write your own forecast and calling consume; you'll need to override > work instead of general_work

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
I'll definitely try the Pack K Bits block - that might just do it! ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
Hi list, I'd like to write a custom block that takes 1, 4-bit symbol and remaps it to 1, 32-bit symbol. Some code for a general_work() method is below [1], but it doesn't quite work yet. It isn't convolutional - i.e. the 4-bits of symbol k, do not overlap with the 4-bits of symbol k-1 - so it doe

Re: [Discuss-gnuradio] Re: usrp2 with atl1e gigabit ethernet device

2009-11-19 Thread Christopher Friedt
Hi Stefan, On Thu, Nov 19, 2009 at 4:30 PM, Stefan Brüns wrote: > 2) ethtool eth0 exactly - that's the last thing I checked, and it reported that only 10/100 Mbps was supported with my card (I thought that was especially weird for a gbe card). Then I checked the kernel source and found the atl1e

[Discuss-gnuradio] Re: usrp2 with atl1e gigabit ethernet device

2009-11-19 Thread Christopher Friedt
I see what the issue is: Some ATL cards incorrectly appear as "L1 Gigabit Ethernet" cards in lspci, but they are actually the L2 adapters, which only support 10/100 Mbps networking. That would explain a lot! On Wed, Nov 18, 2009 at 8:56 PM, Christopher Friedt wrote: > Someone tol

[Discuss-gnuradio] Re: usrp2 with atl1e gigabit ethernet device

2009-11-18 Thread Christopher Friedt
either a) the MDIX auto-negotiation is not working, or b) my ethernet device is not configured for gigabit speeds, even though it's capable of it. Does anyone else on the list have a device that uses the atl1e ethernet adapter? C On Wed, Nov 18, 2009 at 12:19 PM, Christopher Friedt wrote:

[Discuss-gnuradio] Re: usrp2 with atl1e gigabit ethernet device

2009-11-18 Thread Christopher Friedt
It would seem that the atl1e device does support manual MDI configuration, according to this [1]. [1] http://lwn.net/Articles/289918/ On Wed, Nov 18, 2009 at 12:14 PM, Christopher Friedt wrote: > Hi list, > > I've connected a USRP2 to my laptop's gigabit ethernet [1

[Discuss-gnuradio] usrp2 with atl1e gigabit ethernet device

2009-11-18 Thread Christopher Friedt
Hi list, I've connected a USRP2 to my laptop's gigabit ethernet [1] and the USRP2's ethernet indicator LED is not on. Running find_usrp2s returns zero results on my machine, while on another machine, using the same cable, the USRP2 is detected. I've read that some people have actually had it work