Rockbox Development > New Ports
Trio TCH1643
knob:
I'm guessing this has the same fuselage as the Ramos T8 and Archos 43 Vision, all are Rk2705
and 480x272 touch screen, there is an SDK knocking around for the T8.
Might be worth seeing if the Ramos T8 firmware will work on this player, it would make a dual boot with Rockbox and testing easier.
wodz:
knob, you seem to be well oriented in this matter. I would like to get 'T8'. What other brands to look for? Is it something particular I can look for in item description?
cenobyte:
So is there special software I will need to use to flash? I am familiar with the Ben Nanonote pocket computer which uses usbboot to flash. Is there a similar program I would need to flash, especially since my player is not in the official installer?
wodz:
Your player is not in official installer for a reason. You need to write touchpanel driver at least. Other bits may need to be tweaked as well. The point was it is doable in reasonable amount of time to port rockbox to work on your target. We don't service 'port requests'. If someone is interested he needs to get his hands dirty.
You don't need special software to flash rockbox on rk27xx player. But still you need to have working binary. Can you access hidden/system partition? We will need BASE.RKW firmware file to confirm configuration of various settings by dissasembling it. Look for 'rockchip system partition' on google. You may also try (at your own risk) rkusbtool from rockbox/utils/rk27utils. Having original firmware extracted is the very first step. More photos of internals will help also. It is interesting for example if this DAP uses external codec or the one integrated in rk27xx SoC. Another possibility is to have firmware upgrade file for *your* player.
knob:
@cenobyte
Have you got a copy of the original firmware, I think it would be *.img rather than *.rkw.
See if you can revive your player first, if that works then you can copy the Rockbox bootloader into the firmware image and experiment further, as for Rockbox you would need to get the lcd working first, not easy, a datasheet for your LCD might help, the reference build is different all together in this respect.
@wodz
I don't think any rk27xx series devices are made anymore apart from the Hifimans and rk2738 ebook readers, maybe some Texet T900 are available in Russia.
ownta.com may have some old stock, but it's best to check they actually have in stock what they advertise.
It's very difficult to get hold of these now, most generic no-name PMP's you would usually end up with are Rk261x or rk28xx, no way of telling from the description I'm afraid.
It's always a problem with Rockbox as soon as the port gets developed the manufacturer moves on to something else so it's a game of catch up. ;-)
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