What's the name of the LCD cable of XMEGA A1U Xplained Pro?

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I have Atmel XMEGA A1U Xplained Pro. I've discovered that it uses External Bus Interface pins for the LCD extension port. This is how I've decided to make a PCB adapter for this parallel display: http://www.ebay.com/itm/LCD-Deve...

 

But I have bad news. I cannot find this kind of cable anywhere. I don't know what's the name of it, pitch, resolution, etc., not even the parameter names for it! Without it, I cannot even run the Segmented LCD1 Xplained Pro that I've got since it has a socket for this specific kind of cable.

 

Plugging displays on SPI is a totally stupid solution since the SPI displays are too slow (already tested a tile-based graphics rendering engine that renders one tile on Arduino Uno to a SPI STxxxx display and I've talked about this like at least ten times). I cannot even find a one single complete GPIO port with all pins exposed for the parallel communication without the External Bus Interface since all pins are scattered all around. I might do that, but sacrifice the I/O peripheral board ports for the Xplained board that plug in nicely.

 

Can someone give me a pointer how that cable is called, what are its parameters and if they're available to buy on eBay or somewhere with cheap shipping?

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The manual says all headers have a pitch of 2.54mm. This is the standard idc connector spec that has been around for years. Also known as 0.1" pitch.

You'd better tell Nokia they were stupid for using serial to their color displays.

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http://media.digikey.com/photos/... doesn't have a 2.54mm header for the LCD, but this tiny little white thing on the bottom. It's EXT4 in the bottom left. That's the one I need.

 

Nokia had fast processors so it wasn't a problem to render images with SPI, but AVR is much slower so it needs parallel communication. Nokia's processor probably even had a FIFO buffer so that the CPU didn't have to wait until one byte was sent, but just fill in the buffer with graphics data and move on to load new data or do something else in the meantime.

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It appears to be an FPC cable.

By the looks things it has about 50 conductors. Something like thishttp://uk.farnell.com/molex/9826...

 

Be sure to check how many conductors it actually has.

 

SpiderKenny
@spiderelectron
www.spider-e.com

 

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Right, I dug about a bit more. The actual connector on the board is an OMRON XF2M-5015-1A  and does indeed take a 50WAY FPC Cable.

**EDIT** Spellung and Grammer.

SpiderKenny
@spiderelectron
www.spider-e.com

 

Last Edited: Mon. Dec 28, 2015 - 10:20 PM
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Foxcat385 wrote:
Can someone give me a pointer how that cable is called, what are its parameters and ...
Precision Design Associates has a 3.5-in LCD and maXTouch for the Xplained Pro.

Precision Design Associates

35xx Series

3.5in Touch Module - Xplained

http://www.pdaatl.com/tx35xx.htm#tm3500

...

TM3500 Datasheet

http://www.pdaatl.com/doc/tm3500.pdf

...

1.3 Host Interface J2
Connector J2 implements Atmel’s “XPRO LCD” connector found on various Xplained and Xplained Pro evaluation kits.
It connects to the host and carries signals between the host and (1) the MaXTouch Touch Controller, (2) the LCD Panel, and (3) serial EEPROM.
Suggested Flex (included with the TM3500 kit):
Manufacturer P/N: Wurth Electronics #687 650 100 002
Description: 0.5mm pitch 50 position FFC, Length 100mm

...

P.S.

PDA TM3500 has an ILI9488 LCD controller accessed via SAMV71 EBI or SAME70 SPI :

http://asf.atmel.com/docs/latest/search.html?search=ili9488

 

Edit : P.S.

"Dare to be naïve." - Buckminster Fuller

Last Edited: Tue. Dec 29, 2015 - 02:51 AM
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Foxcat385 wrote:
Nokia had fast processors so it wasn't a problem to render images with SPI, but AVR is much slower so it needs parallel communication. Nokia's processor probably even had a FIFO buffer so that the CPU didn't have to wait until one byte was sent, but just fill in the buffer with graphics data and move on to load new data or do something else in the meantime.
XMEGA AU has DMA available for USART master SPI mode.

Atmel Corporation

http://www.atmel.com/devices/ATXMEGA128A1U.aspx?tab=documents

http://www.atmel.com/Images/Atmel-8331-8-and-16-bit-AVR-Microcontroller-XMEGA-AU_Manual.pdf

...

23. USART
...

23.14 DMA Support
DMA support is available on UART, USRT, and master SPI mode peripherals.
...

"Dare to be naïve." - Buckminster Fuller