Hooray!!! Rockchip SDK!

[jasonmanchu]

Originally Posted by knob

You need to unpack it your C: drive and compile project rk27_baord.mcp with ADS v1.2
you might need to modify the screen driver for your player and the button arrangement.
What screen size is your player?

320 x 240 , SA-863 mp4 with rockchip
website: soaiymp3.com

how do u get ADS v1.2

did some research, your response wasn't clear at all
ads is actually Arm Development Suite, which is now obslete!
Should i get RealView Development Suite (RVDS) which succeeded ARM Development Suite?

[lonacen]

Good day. Does anyone have this file RK2608_4G_DEMO Rockchip Micro firmware source code, the version, add text, pictures, aut SCM www.pudn.com Could you, please, upload it on any share?

[jasonmanchu]

i still have no better idea how to compile this sdk as i can't get ads

[harmika]

Hi, everyone!
There was a question about disassembling the whole firmware for RK26, I need such a help.
I read a big junk of this topic...but I still do not have any information about extracting/disassembling the RFW. I want to repair (or mod) my player and it might be a good practice for me.
I own an Explay T7 (RK2608A) with touhpad (5 virtual buttons), sensor works very buggy and almost completely died (and also it annoying me). It has its own specific MCU with no datasheet (rather there is datasheet for a similar model with some information about the interface).
I have an idea to completely replace the touchpad interface by simple electrical switces with new MCU, so I need to understand how the touchpad works (for short, I want to specify codes which are accepted by RK2608A as buttons). Can anyone help me? Thanks and sorry if my question does not exactly match the topic

[knob]

If anyone still has one of these rk27xx players and is still interested there is some more development with rk27xx players here:-

·*³öÄãµÄMP4,Ëý¾ÍÊÇÒ»¿ª·¢°å,Ò»ÆðRock°É!ÀûÓÃKeil MDK¿ª·¢Rockchip RK2706. Öйúµç×Ó¿ª·¢Íø(www.ourdev.cn)










pretty awesome stuff eh! I'll download and try some of this out myself when I get time. :roll:

[Barracuda72]

As soon as I know, there is an active development of porting Rockbox to rockchip:
Rockchip27xxPort < Main < Wiki
I've testet it on Ritmix RF-8800 (Russian clone of Ramos RM-970) and Ritmix RF-8900 (Russian clone of Hott MU763), and it works fairly well, but still some features not implemented

[knob]

http://kildekode.ru/sandbox/6440/Rockbox-dlya-vsekh.htm

Nice Barracuda, was the screen driver for the LCD touch screen the same?

[Barracuda72]

Originally Posted by knob

Rockbox

Nice Barracuda, was the screen driver for the LCD touch screen the same?

What exactly did you mean? If you are speaking about touchscreen driver, then I can't say anything - I broke touch on my 8900 and throw it away. If about Lcd driver - then yes, it's mostly the same, differences are in power-on command sequence and screen size. It seems to be very similar to ili9230, but has some extended commands

[Barracuda72]

Originally Posted by knob

Had a play around with the SDK for Rk27xx
With a bit of help from the RK2705 datasheet and a very small change to
the Rockcodec the audio is now fine.
In HW_rockcodec.h

in HW_Rockcodec.c


I was able to configure all my buttons if I choose the RK2700 chip configuration.

Hope this might help anyone still playing around with RK27xx players and the SDK.:mrgreen:

Thank you for you effort =)
I've tried this, it works! But... The sound is MONO, not STEREO. And, OF uses vol_out | GAIN_BYLEFT, so it's is misconfiguration in other piece of code.
I'm working on this because for now it's only one problem that preserves me from using Rockbox on RK27XX - i've got FM, RTC, ADC buttons, etc working, but playback quality is low, and problem seems to be very similar - it exists on both my players (RF-8800 and RF-8900) and in both Rockbox and SDK builds. I've even tried to take some parts of code from newer TEXET T-900 SDK, but with no luck.

[knob]

You are right, it is playing in mono! I don't use the old SDK anymore, Rockbox is
much easier to work with, the audio on my player is really perfect with Rockbox!

I now use Rockbox all the time. if you want to make themes I suggest building the Rockbox simulator
it works well and is easy to do.

I have another rk2706 player, from hacking the OF seems to be ILI9320 screen type, it's a touch screen clone of teclast M33.

I have put in all the screen setting but sadly the display does not work.

The data_transform setting I am not sure about.
The dump from OF is
ROM:6003D488 sub_6003D488 ; CODE XREF: sub_6003D4AC+4p
ROM:6003D488 ; sub_6003D4C0+4p
ROM:6003D488 AND R1, R0, #0x3F000
ROM:6003D48C MOV R1, R1,LSR#2
ROM:6003D490 AND R2, R0, #0xFC0
ROM:6003D494 MOV R2, R2,LSR#4
ROM:6003D498 MOV R0, R0,LSL#26
ROM:6003D49C MOV R0, R0,LSR#24 (shift left 2?)
ROM:6003D4A0 ADD R1, R1, R2
ROM:6003D4A4 ADD R0, R0, R1,LSL#8
ROM:6003D4A8 BX LR
ROM:6003D4A8 ; End of function sub_6003D488

Which I have translated in lcdif-rk27xx.c as

unsigned int lcd_data_transform(unsigned int data)
{
unsigned int r, g, b;

#if defined(M33)
/* 16 bit interface */
r = (data & 0x0003f000) >> 2;
g = (data & 0x00000fc0) >> 4;
b = (data & 0x0000001f) << 2;
#else
#error "Unknown target"
#endif
return (r | g | b);
}
This could be wrong I am not sure.