Rockbox Development > New Ports
RockChip mp3/mp4 players
Songs0fFailure:
Does anybody found datasheets for RKnano\RKnano-B\RKnano-C ?
i search on chinese websites like pudn.com, docin.com, download.csdn.net, ishare.iask.sina.com.cn and i tried to get documents form IC suppliers on alibaba.
all i found is pin assignment from texet schematic diagrams and thist pdf - http://www.sendspace.com/file/ofldjd
and i have different tools for RKnano.
saratoga:
--- Quote from: Songs0fFailure on May 23, 2013, 04:05:56 PM ---Does anybody found datasheets for RKnano\RKnano-B\RKnano-C ?
--- End quote ---
Just whats been reverse engineered here: http://rockbox.haxx.se/wiki/RockChipNanoB
FWIW, if thats correct its not a very interesting target since it has too little RAM to do much with.
Sitheek:
--- Quote from: knob on May 08, 2012, 03:32:34 PM ---
--- Quote ---Do I use rk27load to upload bootloader.rkw to the player?
--- End quote ---
No need for rk27load just rename bootloader.rkw to BASE.rkw and replace it in the firmware image and flash to player if you have .img file update.
If your player has .RKW firmware update then just open the firmware partition and copy the bootloader over to the player.
Rockbox.rkw and original firmware BASE.rkw goes in the .rockbox folder on the uSD card then you can do a dual boot, the dual boot works very well and makes updating and testing very easy.
Hope this helps.
p.s. Do you have the original diel-symphony-300 player?
--- End quote ---
Hi ! I want to install Rockbox on this cheap (<30$) RK 2738 device smartscreens TuchMe - it is an ebook reader : http://www.smartscreens.com/801/73223.html
It has 800x480 touchscreen and 8 Gb internal flash. It is very similar to this device :
http://www.prestigio-tech.it/products/eBook-readers/3-series/PER3274B
It is possible to run firmware on TouchMe made for PER3274B, but there are some differences in touchscreen driver and battery information is incorrect. There is no radio function in TouchMe.
I was able to use tool for flashing firmware from PER3274B and it works OK, we can flash img files without MD5 checksums required by tool provided by smartscreens.
I have compiled rockbox under my debian wheezy - and the botloader too. Mounted img file, and copied botloader.rkw into system/base.rkw and prepared sd card with .rockbox folder - I have copied there all files from rockbox.zip and original base.rkw.
I have flashed my new img file into device and... system started from /system00/base.rkw not from my sd card :(
Then I have replaced /system00/base.rkw with rockbox bootloader.rkw and flashed this image into device - reboted and ... device runs in that switched mode waiting for flashing new firmware.
I believe rockbox bootloader.rkw is somehow not accepted by bootloader from original firmware and it can't be executed.
I'm curious why it does not work and how this device boots - some bootloader (uboot?) runs rock2729boot.bin and then /system/base.rkw?
@wodz : what tools did you use to diassemble yours rk 2706 bootloader (Ida?), what do I need to know, if I want to change yours bootloader to run on this rk 2738 devices?
I have schematic of generic cheap RK 2738 ebook reader from some chinese site. It is probably wery similar or identical to my device. I will attach it here and also rock2729boot.bin.
Is there any public SDK for RK 2729, RK2738 or RK 2808 devices?
wodz:
273x series is much closer to 280x AFAIK so no, rk27xx port will not work according to my knowledge. There are 3 sources of information available: 1) There are products briefs from Rockchip (which in case of rk2738 states it uses arm926-ejs core like rk280x and not arm7-ejs like rk270x) 2) There is preliminary and incomplete datasheet for rk280x flaying around 3) There are linux kernel sources for rk2808 released by Archos once upon a time.
rna023:
anyone useing players with the chip of RKnano
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