GPS, VMWare and question about bluetooth headset

[Johan Badenhorst]

Hi there,

First off I just want to say thanks to the guys who figured out the SD card
effect on GPS.  Tested this and TTFF was 72 seconds while walking to work
this morning (there aren't enough hours in the day, so some things need to
happen in transit).

I only got the physical device yesterday, and was able to setup the USB and
get USB networking going in a Ubuntu VMWare Image.  This worked well, except
for the fact that I lost the USB connection when Windows power saving kicked
in, so keep that in mind if you are going to use VMWare to run opkg etc.
Note that I haven't tried flashing using this method yet, I want to see that
it is stable enough first.

I am really determined to use the Freerunner as my phone for everyday use.
I believe that this is the only way to make sure that the phone is usable
and that application interfaces are practical.  At the moment that is a bit
tricky because of the echo and interference when making phone calls, but I
believe that these issues aren't insurmountable.  The reason I got an open
phone is because when issues like these creep up I have the option of
getting in there and trying to sort it out myself.

It is with that in mind that I will be installing XOScope to do some tests
of my own.

Questions:

1.  In ticket 1267 the following statement is made:

*With a few mixer tweaks it is possible to send a 1 kHz PCM tone out
through the call speaker*

Can someone ellaborate on what these tweaks are?

2.  a)  A bluetooth headset is mentioned as a possible workaround, has
anyone tested this,
 b)  does it get rid of the echo as well as the interference
 c)  and is there a BT headset that anyone recommends if I am going to
test this myself?

Rock on developers!
J
___
Openmoko community mailing list
community@lists.openmoko.org
http://lists.openmoko.org/mailman/listinfo/community

Re: GPS, VMWare and question about bluetooth headset

[Mike Montour]

Johan Badenhorst wrote:

  At the moment 
 that is a bit tricky because of the echo and interference when making 
 phone calls, but I believe that these issues aren't insurmountable.  The 
 reason I got an open phone is because when issues like these creep up I 
 have the option of getting in there and trying to sort it out myself.
 
 It is with that in mind that I will be installing XOScope to do some 
 tests of my own.
 
 Questions:
 
 1.  In ticket 1267 the following statement is made:
 
 /With a few mixer tweaks it is possible to send a 1 kHz PCM tone out 
 through the call speaker/
 
 Can someone ellaborate on what these tweaks are?

You may be able to use the 
/usr/share/openmoko/scenarios/voip-handset.state profile. Otherwise, 
it's a matter of studying the WM8753 diagram as shown on the Neo1973 
Audio Subsystem wiki page and setting the appropriate mixer controls to 
route PCM audio to the speaker and to route the mic2 audio into the ADC. 
Note that the Freerunner has different audio wiring (and a different 
amplifier chip) than the Neo1973, but I don't think there's a dedicated 
wiki page for it yet.

In addition to xoscope I have been using the 'jaaa' spectrum analyzer 
from http://www.kokkinizita.net/linuxaudio/ (which includes a sine-wave 
or noise generator). There's a bitbake recipe for it in the 
org.openmoko.dev branch of the Openmoko git repository.

 2.  a)  A bluetooth headset is mentioned as a possible workaround, has 
 anyone tested this,

I've tried but failed to get a Plantronics 220 to work. One person on 
IRC said that he had managed to get headset audio to work, but I don't 
know any other details.


___
Openmoko community mailing list
community@lists.openmoko.org
http://lists.openmoko.org/mailman/listinfo/community