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Search took 0.01 seconds. Search: Posts Made By: sid6581
Forum: General Discussion 25th Oct 2009, 12:32 pm
Replies: 674
Views: 135,531
Posted By sid6581
Mmmhh I don't see much difference here, the I2C...

Mmmhh I don't see much difference here, the I2C and I2S type are the same...

For our player, we use the internal RK27xx CODEC.

I2C is set-up to I2C_Internal (2)
I2S is set-up INTERNAL_CODEC (0)
Forum: General Discussion 21st Oct 2009, 1:42 pm
Replies: 674
Views: 135,531
Posted By sid6581
I have opened mine. I can clearly see that two...

I have opened mine.
I can clearly see that two 4GB MLC NAND flash chips are there.
You probably have the same ? Do you plan on opening your player ?
Forum: General Discussion 19th Oct 2009, 8:42 am
Replies: 674
Views: 135,531
Posted By sid6581
Ok so I see you found the few opcodes you...

Ok so I see you found the few opcodes you mentioned in that Zsp_getting_started.pdf
Do you think there is really enough information out there to have the list of *all* the opcodes ? :)
Forum: General Discussion 18th Oct 2009, 2:44 pm
Replies: 674
Views: 135,531
Posted By sid6581
WOW ! you are on something. You are right, i...

WOW ! you are on something.
You are right, i read somewhere that ZSP500 instructions are a mix of 16 bits and 32 bits instructions.
Where/how did you find this code ??? :p
Forum: General Discussion 18th Oct 2009, 2:43 pm
Replies: 674
Views: 135,531
Posted By sid6581
Don't worry about the length of your post, this...

Don't worry about the length of your post, this thread is HUUUUUUUUGE anyways :)
Really i think we should have our separate section on this website, for developers like us, so we could have separate...
Forum: General Discussion 18th Oct 2009, 2:03 pm
Replies: 674
Views: 135,531
Posted By sid6581
Btw, the datasheet for the FM modules used in...

Btw, the datasheet for the FM modules used in most MPx players can be found here:
SparkFun Electronics - FM Receiver Module (http://www.sparkfun.com/commerce/product_info.php?products_id=8770)

I...
Forum: General Discussion 18th Oct 2009, 11:02 am
Replies: 674
Views: 135,531
Posted By sid6581
I am not sure really. It's true an error in...

I am not sure really.

It's true an error in IOMUX config ( ie. a pin is not configured correctly ) could be responsible for having audio issues.

You imagine that if I2C was used as external...
Forum: General Discussion 18th Oct 2009, 10:49 am
Replies: 674
Views: 135,531
Posted By sid6581
By the way, this is a super useful module. From...

By the way, this is a super useful module.
From your PC, you can control devices via UART, SPI, I2C ... the most common protocols out there, and have a bunch of GPIO.
Forum: General Discussion 18th Oct 2009, 10:46 am
Replies: 674
Views: 135,531
Posted By sid6581
Many pins in the RK27xx chip can have several...

Many pins in the RK27xx chip can have several usages.
IOMUX functions selects the particular usage for a pin.
They multiplex pins to reduce the number of pins for the chip, which is supposed to...
Forum: General Discussion 18th Oct 2009, 3:39 am
Replies: 674
Views: 135,531
Posted By sid6581
I haven't looked but that would be surprising. An...

I haven't looked but that would be surprising. An ARM7E is not supposed to have MMU (?) Now, RK28xx that's an other story :)
About the DSP, i still think it is ZSP500 with those G2 instructions for...
Forum: General Discussion 13th Oct 2009, 2:12 pm
Replies: 674
Views: 135,531
Posted By sid6581
We have a RK2705, the arm core runs up to 240 MHz...

We have a RK2705, the arm core runs up to 240 MHz and DSP up to 176 MHz.
Make sure you have the numbers right in the PLL (i think there is a list of PLL values in the HW_PMU module).
Increase the...
Forum: General Discussion 13th Oct 2009, 1:28 pm
Replies: 674
Views: 135,531
Posted By sid6581
The rk27xx does not use ZSP400 ?

According to the datasheet of rk7xx, the DSP has a eight stages pipeline.
This is not ZSP400 which employs a five stages pipeline.

The eight stages pipeline corresponds to the ZSP 500
And there...
Forum: General Discussion 13th Oct 2009, 1:23 pm
Replies: 674
Views: 135,531
Posted By sid6581
Good to see you got the same player as ours :) ...

Good to see you got the same player as ours :)

Interesting, maybe you could look that on a scope in DC mode and see if there is a DC offset in the output ? There must be some settings in the CODEC...
Forum: General Discussion 9th Oct 2009, 10:12 am
Replies: 674
Views: 135,531
Posted By sid6581
1000 thanks guys !

1000 thanks guys !
Forum: General Discussion 9th Oct 2009, 8:26 am
Replies: 674
Views: 135,531
Posted By sid6581
HOLY ................................ WOW ! :) ...

HOLY ................................ WOW ! :)
Can you point me on a link to download this SDK ? I guess I don't have that one !!!

WONDERFUL !!
Forum: General Discussion 9th Oct 2009, 8:09 am
Replies: 674
Views: 135,531
Posted By sid6581
I don't think we have it, but i would love to be...

I don't think we have it, but i would love to be wrong ! :)
We probably just need the ZSP400 assembler, its name is sdas.
I have never seen it anywhere.

Rk26xx is a 8051 core + ZSP400 core. The...
Forum: General Discussion 7th Oct 2009, 9:57 am
Replies: 674
Views: 135,531
Posted By sid6581
Thanks Wizard. I have seen this program...

Thanks Wizard. I have seen this program yesterday.
AleMaxx and I were speaking about this and he gave me the link.
There is a sort of IDE which contains a very weird assembler.
It is true it seems...
Forum: General Discussion 7th Oct 2009, 8:57 am
Replies: 674
Views: 135,531
Posted By sid6581
Unfortunately there is no ZSP compiler there, i...

Unfortunately there is no ZSP compiler there, i think it is just a debugger...
I believe that the most important for RK2xxx DSP development is only the ZSP400 assembler, it's called "sdas".
No need...
Forum: General Discussion 3rd Oct 2009, 12:42 pm
Replies: 674
Views: 135,531
Posted By sid6581
I am searching for the DSP (ZSP400) compiler ? I...

I am searching for the DSP (ZSP400) compiler ? I have seen some ZSP400 source code in the SDK but it is precompiled.
I am kind of worried that we cannot write any ZSP400 code :(
Forum: General Discussion 3rd Oct 2009, 11:18 am
Replies: 674
Views: 135,531
Posted By sid6581
We can chat on IRC : server: ...

We can chat on IRC :

server: irc.freenode.net
channel: #rockchip

See you all very soon :)
Forum: General Discussion 1st Oct 2009, 10:58 am
Replies: 674
Views: 135,531
Posted By sid6581
I think it is a little bit "too alive". It is...

I think it is a little bit "too alive". It is very difficult to navigate thru this very long thread.
Is there anything we can do do make it more efficient.
Could we create a special sections for...
Forum: General Discussion 1st Oct 2009, 9:45 am
Replies: 674
Views: 135,531
Posted By sid6581
Hey Knob and Flasher86. So far I did not have...

Hey Knob and Flasher86.
So far I did not have luck in finding the bug related to audio. I still think it is in the CODEC config ...
Forum: General Discussion 30th Sep 2009, 11:52 pm
Replies: 674
Views: 135,531
Posted By sid6581
GOSH !!!! Wonderful documents !!! The datasheet...

GOSH !!!! Wonderful documents !!! The datasheet is very accurate !!!!!!!!!!
Forum: General Discussion 30th Sep 2009, 11:59 am
Replies: 674
Views: 135,531
Posted By sid6581
I wish I could help but again, I cannot upload...

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...
Forum: General Discussion 30th Sep 2009, 10:05 am
Replies: 674
Views: 135,531
Posted By sid6581
Hi Knob, I was opening the .mcp on a different...

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...
Showing results 1 to 25 of 54
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