Re: Acoustic Position Measuring Device
On Tue, Aug 19, 2008 at 7:49 AM, Charles Pax [EMAIL PROTECTED] wrote: Hey, gang, here's an idea: Use the Freerunner as an acoustic measuring device. An application like this exists on the OLPC XO written in python. I think it's called 'Measure'. Rather than using reflected sound it uses a second laptop to hear the sound and the clock sync is done via WiFi. Differences aside, perhaps it will give you some ideas/code. At least you know such a thing is possible with low fidelity speakers and microphones :-) HTH ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: New Qtopia-Images fixes suspend problem nearly complete!
On 8/11/08, Pawel Kowalak [EMAIL PROTECTED] wrote: It's not that easy. But IIRC somebody on OLPC tracker stated that this problem no longer occurs in 2.4.26. We'll see when Andy switch us to 2.4.26 ;) That was me. OLPC is on 2.6.25 BTW, perhaps with upstream patches. I also posted a workaround that might avoid data loss when the partition table gets hosed, see http://lists.openmoko.org/pipermail/community/2008-August/026156.html ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: ANNOUNCE: Software equalizer for openmoko
On 7/23/08, Russell Sears [EMAIL PROTECTED] wrote: I've modified gst-plugin-equalizer to use fixed-point arithmetic. very cool This means that it's (barely) fast enough to provide bass, midrange and treble control for ogg files played back via alsa. Do you know about the equalizer functions built in to the hardware? alsamixer shows them. Not as extensive as a software equalizer but no cpu load either. I wonder if there is a gui for this (alsamixer is a curses-style text mode app for those that don't know) ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: SD Card
On Tue, Jul 22, 2008 at 7:36 AM, arne anka [EMAIL PROTECTED] wrote: on a related note, what is the best way to format an sd card for use in the freerunner? fat, ext2. afair the latest uboots allow ext3, too, of what use a journal ever might be with an sd card. No fsck. An 8G SD with lots of little files would take a while to fsck after a crash. It would be interesting to get a number though, maybe it's not as bad as I imagine. I'll add it to my upcoming SD tests. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: microSDHC class 4 or class 6?
On, 2008-07-18 kello 15:14 -0500, Hans L kirjoitti: On Fri, Jul 18, 2008 at 2:26 PM, Andrew Burgess [EMAIL PROTECTED] wrote: Can the Freerunner make use of the class 6 speed? If not I'll go for the max size. According to http://en.wikipedia.org/wiki/Secure_Digital_card#SDHC Class 4 supports a minimum write speed of 4MB/s, and 6MB/s for class 6. Correct and sorry for not defining my terms Not sure how fast the Freerunner is capable of writing though. That's my real question According to raster the glamo (which is also the SD card controller) bus speed is 7.3m/s (I presume from context he means megabytes). This with the cpu doing nothing else besides transferring data to or from the card; thus in practice I don't think the class 4/6 distinction is going to matter much on the FR. I would go for the size (and did, with my 8 GB I saw a post (here?) about the performance of different filesystems and I recall seeing flash performance numbers of 9MB/s. Maybe that was read speed but 9 7... But, I haven't experimented with the different classes, so grains of salt OK, I'll volunteer. I just ordered a 4GB class 6 and an 8GB class 4 from Newegg, both Transcend brand. I'll post results next week. Also, there were some wait state tweaks posted on the kernel list to speedup glamo access. They were /sys controllable so I'll throw them into the mix. My little contribution :-) Andrew Burgess ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
microSDHC class 4 or class 6?
I've been able to find 4GB class 6 microSDHC cards and 8GB class 4 cards. Can the Freerunner make use of the class 6 speed? If not I'll go for the max size. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
