Hooray!!! Rockchip SDK!

[sid6581]

Originally Posted by knob

I'm using Rock27boot 3.30 2008-01-17 20:53:14

here's a selection:-
Send big files the easy way. Files too large for email attachments? No problem!

THANKS ! It works now with our original firmware !
( However i had to use 4.14 2008-06-16 10:16:27 , 3.30 would not work for some reason ... )

I also tried the output of your own firmware compilation and it seems to work too. Very good !

Now I would like to compile the firmware by myself from your own rk27sdk_new.

So, I have installed ADS compiler & codewarrior with crack.
I open ide/rk27_board/rk27_baord.mcp in codewarrior and just hit "make".
I have tons of warnings but in the end, no error.

However I don't know what I should do after that...
I don't even know if it's the right way to compile.

Any tip ?

[knob]

open ide/rk27_board/rk27_baord.mcp in codewarrior and just hit "make".
I have tons of warnings but in the end, no error.

Yes that's what I do. If you get no errors a batch file in resource folder should run and generate a new base.rkw in the OUTPUT folder.

[sid6581]

Hi Knob, I was opening the .mcp on a different SDK directory, so i was not looking at the right place haha

Ok there is a problem.
When i plug the USB cable, the mass storage device shows on windows (together with an image on the player), one or two seconds after, the unit disconnects and shows the battery charging. I let it the whole night like this and it is still showing as charging this morning...
So I never get a chance to upload anything to the player !!!

Also, I cannot see the mini SD card...

Do you have these problems ?

[knob]

hi sid6581, No mine stays as a mass storage device when connect to USB and I can transfer files to my player no problem, not on vista by any chance are you? Linux and Winxp are ok but folks have been having problems with vista.

Not sure about the card, mine uses microSD but I don't have one handy to try.

[flasher86]

I had similar problems with my RK2606 player. I just plug it out and plug it in again until it stays visible to the system. I noticed that it depends on the system and the firmware. WinXP better handles these devices.

[knob]

Just tried a raw uncompressed audio file on the player, still has the same audio problem, I'm gonna delve back into the source code again to get to the bottom of this.

[sid6581]

Originally Posted by knob

Just tried a raw uncompressed audio file on the player, still has the same audio problem, I'm gonna delve back into the source code again to get to the bottom of this.

I wish I could help but again, I cannot upload anything to my player since it goes to this weird battery charge mode ( i have Win XP ). Maybe I am going to put a switch that disconnect the battery to the unit, whenever i want ...... arf.

Can you describe the audio problem exactly ?

[knob]

Yes it's like the left hand stereo is coming out of both earplugs together with some distortion and the speaker doesn't come on when the earplugs are pulled out.

btw have you got a linux boot you could try the player on? I take it the original firmware is ok?

[AleMaxx]

Since knob mentioned linux, it depends on the kernel if your player will be recognized. 2.6.24 does not work for me 2.6.29 and 2.6.31 (and I guess everything in between) works.

[knob]

Well we don't have a RK27xx datasheet so I had a look at the Rk26xx datasheet.
I think I have found what would cause my problem. It's on page 84 btw.

CR1: Control Register 1

Bit 7: JACK: Output Jack plug detection status
0= no jack 1= output jack present

Bit 6: MONO: Stereo-to-mono conversion for DAC path
0= stereo 1= mono

Bit 5: DAC_MUTE: DAC soft mute mode
0= inactive 1= puts the DAC in soft mute mode (internal input MUTE)


Just need to find and fix it now