Hooray!!! Rockchip SDK!

knob · #**311** (**permalink**) 24th Sep 2009, 10:27 am

Ok I'm uploading it now. LINK:- http://www.sendspace.com/file/fjfwpa
I have been playing around with the bmps and fonts though and trying to remap the keys.
My "up" volume works ok, but I can't remap the down volume!

I don't have any problem with the partitions, not sure if it will help, your player could be different.

Does music play ok on your player?
Please post your findings, we need many members involved.

flasher86 · #**312** (**permalink**) 24th Sep 2009, 11:41 am

Hi knob, I've been trying to get to audio sources in your SDK, and I have terrible news so far!

The most important audio functions are precompiled into this file: RK27XX_EQ_V071228R.a

It's a shame, because SDK for RK260X has these functions kept open source.

look at msaudspapi.h file. There are functions listed connected with processing audio buffer at very last point of decoding data (uploading PCM data to audio digital processor).

You can try changing the arguments of calling these functions. There are interesting values to set like ms_set_leq_target.

I really hope you'll fix the audio, because I want to buy the player as yours as soon as possible. $43 and free shipping is not big money, you know it's tempting

DSX · #**313** (**permalink**) 24th Sep 2009, 12:02 pm

I think something is wrong with my compiler, it will not compile certain commands. It declares them as variables.

Knob, thanks for the source code, now i know that I'm getting somewhere because my screen now initialises

but then goes red.

.

Could you post a compiled version of your firmware because I'm pretty sure my player has the same hardware as yours just less storage space and i think my compiler dosen't like me (

)

knob · #**314** (**permalink**) 24th Sep 2009, 12:15 pm

Here's compiled firmware from SDK ;-
http://www.sendspace.com/file/e732nq

DSX · #**315** (**permalink**) 24th Sep 2009, 12:19 pm

Thanks knob, much appreciated!

flasher86 · #**316** (**permalink**) 25th Sep 2009, 1:37 am

Hey knob, what's new? Have you looked at HW_rockcodec.c file in order to try to solve your audio problem?

borelg · #**317** (**permalink**) 25th Sep 2009, 9:22 am

Quote:

Originally Posted by borelg

I buyed this player last week LINK. In Options-> System information it says:

Product name: RK27SDK
Major version ID:2.2
Hardware ID:080722

The memory size is 16 gb. There is a problem reproducing music: the volume of the singer in all songs is too low! The instruments and the base of the song is perfect but the singer volume is very low!! do you know why? Is it possible to modify my new firmware with another firmware only in the part that regards music player?
Thank you in advance guys!

I tried 32 ohm earphone and 16 ohm earphone. It works with only with this earphone LINK and only in Wireless mode... Why?

I contacted the seller and he says to me that he can remplace the player but I ship me the player only after he received my player (the one that I've now). Who guarantee to me that he ship me the new player?
Thank you in advance guys

knob · #**318** (**permalink**) 25th Sep 2009, 10:24 am

Quote:

Originally Posted by flasher86

Hey knob, what's new? Have you looked at HW_rockcodec.c file in order to try to solve your audio problem?

Yes I already had a look at this. I tried to enable some settings for another player, but I still have the same problem.

I'm sure there must be a way to make this work, this firmware is designed for more than 1 player type, but I can't see anything that looks like a solution.

I was hoping the audio would be ok, this is a difficult area for me to fix.

I was hoping someone else would test the firmware out on a different player, I'm SURE someone has, I just wish members would share information a bit more.

flasher86 · #**319** (**permalink**) 26th Sep 2009, 5:16 am

Too bad, it would be great if someone who has a working SDK verified one-channel audio problem. As I looked SDK provides 2 or 3 different types of codecs for that. Have you tried to switch them? And perhaps trying unplug headphones and see whats happening on different codecs.

I'm looking forward to the solution, and also I'll try to get deeply into the source, there should be something.

AleMaxx · #**320** (**permalink**) 26th Sep 2009, 6:35 am

Hi Knob,
so your selfbuilt firmware has audio problems while the original firmware doesnt? In that case I would recommend to look at the working firmware code and compare it to the sdk source. This would require some ARM assembler knowledge and I recommend the non-free IDA disassembler. Have a look at one of my previous posts where I explained how to load a BASE.RKW firmware file if youre not familiar with this. If youve got any further questions, just ask. I havent dealt with sound so far. Also are you interested in getting a real OS running on your player or just modifying that rockchip firmware?

Regards