Re: USB ids: use our own, or the ones from the OF?

Am 29.05.2012 22:11, schrieb Frank Gevaerts:

> Apparently the Openmoko people distribute USB ids to selected projects
> and communities that ask for them.
...

> * If we can't get one id per target (which I think is not unlikely,
>    we're talking 50+ ids *right now*, so we'd have to ask for a block of
>    128 or 256 ids), is it still worth it? Should we then try to go for one

I'm not sure we even have 50 targets where we can do that - all hardware 
USB targets are out of the game here.

Otherwise it's a good idea imo. It will probably need some work in 
rbutil though (adding the new ids).

--

-- 
Mit freundlichen Grüßen / Best Regards

Jens Arnold

DevConEuro2012 meeting minutes

Hi,

I've gone through the video recordings of the DevCon2012 meeting and
added minutes to http://www.rockbox.org/wiki/DevConEuro2012. Please have
a look at them and correct them if I got something wrong.

There are specific actions (some of which have already been handled) in
there for several people: Dominik, Frank, Linus, Björn, Torne, Marcin,
and Bertrik.

Frank

--

-- 
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

Ladies and gentlemen, we have sound on Android/MIPS!

I'm pleased to announced that Rockbox on my Ainol Novo 7 Paladin
running Android 4.0.3 (ICS), which has an Ingenic JZ4770 MIPS CPU,
successfully played its first track:
Djungel, by Björn Stenberg

I'm now working on cleaning up the (minor) changes needed.

Frank

--

-- 
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

Re: Ladies and gentlemen, we have sound on Android/MIPS!

Frank Gevaerts wrote:
> I'm pleased to announced that Rockbox on my Ainol Novo 7 Paladin
> running Android 4.0.3 (ICS), which has an Ingenic JZ4770 MIPS CPU,
> successfully played its first track:
> Djungel, by Björn Stenberg

Wohoo, that was quick! Nice job!

--

-- 
Björn

Re: Ladies and gentlemen, we have sound on Android/MIPS!

Re: Ladies and gentlemen, we have sound on Android/MIPS!

On 06/11/2012 09:33 PM, Frank Gevaerts wrote:
> I'm pleased to announced that Rockbox on my Ainol Novo 7 Paladin
> running Android 4.0.3 (ICS), which has an Ingenic JZ4770 MIPS CPU,
> successfully played its first track:
> Djungel, by Björn Stenberg
>

Congratulations!!!

Linus

plugin dev on clip+

hello !

i would like to know how to develop my own application running on sansa clip+

i would like to write a morse decoder (i do not know if anyone tried doing this)
it would use the microphone input as a sensor, 
then narrow filter the audio (few tens of hertz bandwith), 
and then decode morse and write decoded words onto the screen
(with adaptive "word per minute" (wpm) rate detection)

i have enough theorical background for carrying out experiments, 
but i don't know nothing about any dev platform for rockbox plugins

any idea ?

help !

Alban

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Je crée ma boîte mail www.laposte.net

Re: plugin dev on clip+

On 14 June 2012 16:06, alban.meffre <at> laposte.net <alban.meffre <at> laposte.net> wrote:

hello !

i would like to know how to develop my own application running on sansa clip+

i would like to write a morse decoder (i do not know if anyone tried doing this)
it would use the microphone input as a sensor,
then narrow filter the audio (few tens of hertz bandwith),
and then decode morse and write decoded words onto the screen
(with adaptive "word per minute" (wpm) rate detection)

i have enough theorical background for carrying out experiments,
but i don't know nothing about any dev platform for rockbox plugins

any idea ?

help !

Alban

Hi Alban,

This sounds relatively straightfoward - if I were you I would start by reading the Dev Guide link (on the front page of www.rockbox.org on the far left-hand-side), followed by the documentation in the wiki, for how to setup the environment for rockbox development (it's the same environment whether you want to 'change rockbox itself' or 'write an app that you run within rockbox').  In summary, rockbox uses a git repository for source code management, and the toolchain consists of (mostly) standard GNU tools (gcc, make, etc) with a few customized scripts to handle the whole top-level build process.  The language for implementation is C.

Once you've pulled the rockbox source onto your PC (Windows or Mac or Linux box etc), and setup your development environment, I would then suggest exploring the source code residing in the "apps/plugins" tree , in particular things like "apps/plugins/pitchdetector.c" which detects frequencies on the recording input of the device (e.g. microphone) and sounds like a good starting point for your project.

Finally, in an ideal world anything you develop would work on all devices supported by rockbox, not just Clip+  -  if you stick to roughly how the pitchdetector app works, you'll probably get this behaviour, but if unsure just visit us on irc (#rockbox  on freenode).  In fact, just do that anyway and say hi!  

Undefined instruction when removing USB cable from Sansa Fuze

Re: Undefined instruction when removing USB cable from Sansa Fuze

Am 25.06.2012 00:01, schrieb Jacob Mansfield:
> Hi All,
> I just noticed that my Sansa Fuze errors with an 'Undefined
> instruction at 00000830' when removing the USB cable. not a major
> problem, as holding the power button for about 15 seconds resets the
> device, but still rather annoying.
> i am running version 9b5d667-120523.
That sounds like a stack corruption. Maybe the reserved stack space is
too small to handle USB disconnect interrupts or something like that?

Cheers,
Hans-Martin