Hi,
Just trying to expand the EOMA ecosystem.
I've got Realtek RTD2660 dithered LCD driver I bought with 800x480 7" display. It converts a 1024p HDMI signal to 800x480 and dithers the pixels to give impression of very high definition. (The illusion is a challenge for small characters that need to be displayed.) It works well for graphical OS like Ubuntu running on the EOMA.
Just wondering if anyone know of SDKs and all the developer bits needed to get RTD2660 board built for EOMA.
(I believe Raspi developers are thinking of making such a device already and have a kickstarter like campaign going.)
So effectively the project is to build a miniature open source HDMI monitor for EOMA all done up in glorious KiCAD. When I get access to a 3D printer, a 100% open sourced case design is likely a done deal.
The chip cost <$2, and LCD about $14. Add in all the components, and you could make decent micro HDMI monitors with BOM of about $20.
Anyone out there wanting to cooperate on this one? I can do all the layout and LCDs to get the thing going from a hardware point of view. I can buy a programmer to program the RTD2660 chip.
What I don't have is the SDK to customize the chip. But obviously need some kind of SDK to make the firmware files. I don't particularly know what to get it, or if there are are open source projects out there that can generate the firmware and/or program the RTD2660 chip
Any pointers greatly appreciated.
On Thu, Nov 21, 2013 at 12:39 PM, joem joem@martindale-electric.co.uk wrote:
Hi,
Just trying to expand the EOMA ecosystem.
I've got Realtek RTD2660 dithered LCD driver I bought with 800x480 7" display. It converts a 1024p HDMI signal to 800x480 and dithers the pixels to give impression of very high definition. (The illusion is a challenge for small characters that need to be displayed.) It works well for graphical OS like Ubuntu running on the EOMA.
Just wondering if anyone know of SDKs and all the developer bits needed to get RTD2660 board built for EOMA.
datasheet:
http://aitendo3.sakura.ne.jp/aitendo_data/product_img/lcd_controller/Xs/RTD2...
oo, niiice, it has a built-in 8051.
(I believe Raspi developers are thinking of making such a device already and have a kickstarter like campaign going.)
... you could always ask them!
On Thu, 2013-11-21 at 14:05 +0000, luke.leighton wrote:
On Thu, Nov 21, 2013 at 12:39 PM, joem joem@martindale-electric.co.uk wrote:
Hi,
Just trying to expand the EOMA ecosystem.
I've got Realtek RTD2660 dithered LCD driver I bought with 800x480 7" display. It converts a 1024p HDMI signal to 800x480 and dithers the pixels to give impression of very high definition. (The illusion is a challenge for small characters that need to be displayed.) It works well for graphical OS like Ubuntu running on the EOMA.
Just wondering if anyone know of SDKs and all the developer bits needed to get RTD2660 board built for EOMA.
datasheet:
http://aitendo3.sakura.ne.jp/aitendo_data/product_img/lcd_controller/Xs/RTD2...
oo, niiice, it has a built-in 8051.
Hmmm... that was just about the only 'datasheet' I could find googling. Its a sprawling list of internal registers and not much clue as to what to set and why.
(I believe Raspi developers are thinking of making such a device already and have a kickstarter like campaign going.)
... you could always ask them!
Easier to extract blood out of stone me thinks. No one sharing anything of value in case someone make product and make money :)
Search realtek: RTD2660 http://www.realtek.com.tw/search/default.aspx?keyword=RTD2660 "Sorry! There is no data found. Please try another keyword."
On Thu, Nov 21, 2013 at 4:31 PM, joem joem@martindale-electric.co.uk wrote:
On Thu, 2013-11-21 at 14:05 +0000, luke.leighton wrote:
On Thu, Nov 21, 2013 at 12:39 PM, joem joem@martindale-electric.co.uk wrote:
Hi,
Just trying to expand the EOMA ecosystem.
I've got Realtek RTD2660 dithered LCD driver I bought with 800x480 7" display. It converts a 1024p HDMI signal to 800x480 and dithers the pixels to give impression of very high definition. (The illusion is a challenge for small characters that need to be displayed.) It works well for graphical OS like Ubuntu running on the EOMA.
Just wondering if anyone know of SDKs and all the developer bits needed to get RTD2660 board built for EOMA.
datasheet:
http://aitendo3.sakura.ne.jp/aitendo_data/product_img/lcd_controller/Xs/RTD2...
oo, niiice, it has a built-in 8051.
Hmmm... that was just about the only 'datasheet' I could find googling. Its a sprawling list of internal registers and not much clue as to what to set and why.
welcome to the wonderful world of realtek! i'm staring at the "datasheet" of the RTD8366 and to be honest it's easier to get an existing board (phil sent me one) and hunt around with a multimeter. luckily there's only really 3 pins i need to configure...
l.
datasheet:
http://aitendo3.sakura.ne.jp/aitendo_data/product_img/lcd_controller/Xs/RTD2...
oo, niiice, it has a built-in 8051.
Hmmm... that was just about the only 'datasheet' I could find googling. Its a sprawling list of internal registers and not much clue as to what to set and why.
welcome to the wonderful world of realtek!
Apparently Taiwan is reducing prices of its LCD panels because no one is buying them.
Then you see things like this:
Search realtek: RTD2660 http://www.realtek.com.tw/search/default.aspx?keyword=RTD2660 "Sorry! There is no data found. Please try another keyword."
Great going I guess.
With Taiwan's own engineers as well as international developers not being able to access LCD drive chip datasheets, you wonder how it is possible that Taiwan can shoot itself both on the feet and the head with one bullet.
May be a China factory can develop or has developed a clone chip. Some 2 billion HDMI devices have been sold already - so there is a ready market for cheap HDMI LCD driver chip.
Have to move on - no time to whine on - too many alternative good things to be doing :)
Hey lckl / keebler - guess what i got through the post? 50 PCMICA through hole connectors, ethernet sockets, and sata sockets. <sniff!>
With Taiwan's own engineers as well as international developers not being able to access LCD drive chip datasheets, you wonder how it is possible that Taiwan can shoot itself both on the feet and the head with one bullet.
... yoga?
Hey lckl / keebler - guess what i got through the post? 50 PCMICA through hole connectors, ethernet sockets, and sata sockets.
yay! what models? where's the datasheets?
On Fri, 2013-11-22 at 12:03 +0000, luke.leighton wrote:
With Taiwan's own engineers as well as international developers not being able to access LCD drive chip datasheets, you wonder how it is possible that Taiwan can shoot itself both on the feet and the head with one bullet.
... yoga?
Hey lckl / keebler - guess what i got through the post? 50 PCMICA through hole connectors, ethernet sockets, and sata sockets.
yay! what models? where's the datasheets?
They are all very similar types as in MEB version 1. No datasheets. CN sourced. (parts at home - can't check right now).
So what would you like to build next?
I was thinking PCMCIA socket + 15+7 type 2.5" sata connector + 40 pin LCD + ethernet + 2 x I2C EEPROM + regulator + optically isolated RS232 for debugging; in a form factor slightly bigger than 2.5" drive so that 2.5" drive can be fitted to the board, and LCD on top. The EOMA is fitted to other side.
May be drop in the soon to be open sourced universal switch mode supply design in there and populate it to generate the 18V for LCD to kick start that side of the project.
The fee for this service is x10 EOMAs by the way.
So shut up, stop trolling us, take my x10 money, and send EOMAs troll!!!
So what would you like to build next?
I was thinking PCMCIA socket + 15+7 type 2.5" sata connector
- 40 pin LCD + ethernet + 2 x I2C EEPROM + regulator + optically
isolated RS232 for debugging; in a form factor slightly bigger than 2.5" drive so that 2.5" drive can be fitted to the board, and LCD on top. The EOMA is fitted to other side.
May be drop in the soon to be open sourced universal switch mode supply design in there and populate it to generate the 18V for LCD to kick start that side of the project.
The fee for this service is x10 EOMAs by the way.
May be keebler can build it - I'm not in the mass manufacturing game except for the company I work for, and they are in a completely different field.
joem <joem <at> martindale-electric.co.uk> writes:
Hi,
Just trying to expand the EOMA ecosystem.
I've got Realtek RTD2660 dithered LCD driver I bought with 800x480 7" display. It converts a 1024p HDMI signal to 800x480 and dithers the pixels to give impression of very high definition. (The illusion is a challenge for small characters that need to be displayed.) It works well for graphical OS like Ubuntu running on the EOMA.
Just wondering if anyone know of SDKs and all the developer bits needed to get RTD2660 board built for EOMA.
(I believe Raspi developers are thinking of making such a device already and have a kickstarter like campaign going.)
As far as I know, what they have in mind is an _actual_ HD LCD monitor, not a sub-sampling one - exactly because small stuff is unreadable on those. Only a 720p one to be fair, not 1080p, but still HD. To be honest, I would myself give an arm and a leg for such a device - but not the ~75 quid (plus shipping) they plan to sell it for (yeah well, apparently I don't value arms and legs too highly).
A 480x800 panel with a HDMI input would be an entirely different beast. So which one are we talking about?
(I believe Raspi developers are thinking of making such a device already and have a kickstarter like campaign going.)
As far as I know, what they have in mind is an _actual_ HD LCD monitor, not a sub-sampling one - exactly because small stuff is unreadable on those. Only a 720p one to be fair, not 1080p, but still HD. To be honest, I would myself give an arm and a leg for such a device - but not the ~75 quid (plus shipping) they plan to sell it for (yeah well, apparently I don't value arms and legs too highly).
A 480x800 panel with a HDMI input would be an entirely different beast. So which one are we talking about?
-- They are common and sold as reversing camera screens for cars and cost about £30. The RTD2660 scales incoming HDMI 1024p to 800x480 screen and very effective.
Example: http://www.aliexpress.com/item/raspberry-Pi-cubieboard-7-inch-digital-LCD-sc...
On Thu, Nov 21, 2013 at 8:06 PM, Attila Asztalos attila.asztalos@gmail.com wrote:
shipping) they plan to sell it for (yeah well, apparently I don't value arms and legs too highly).
somebody else's arms and legs then, obviously :)
arm-netbook@lists.phcomp.co.uk
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Attila Asztalos -
joem -
luke.leighton