A20-OLinuXino-LIME2-eMMC was developed first for customer of ours, but after we saw the result we decided that it’s good to add it in our web shop.
What difference make eMMC instead of NAND Flash?
eMMC behaves like SD-card so no need for special drivers, you write on it as you write on SD-CARD, it’s faster than NAND Flash, and it’s more reliable.
The eMMC Flash we use is industrial grade -40+90C SLC Flash from Micron. All other functionality remains same. Note thatA20-OLinuXino-LIME2-eMMC is still not 100% industrial temperature grade, the DDR3 and Ethernet PHY are in commercial temperature grade (0-90C for the DDR3 and 0-70C for Ethernet PHY), we have industrial grade DDR3 and can build A20-OLinuXino-LIME2-eMMC with such memories,so the next step to complete industrial grade temperature board is to find proper industrial grade Ethernet PHY chip.
olimex 
May 04, 2016 @ 09:54:52
And you kept the same price – nice 🙂
May 04, 2016 @ 10:03:07
How about an adapter board to put an icoBoard.org on it?
May 04, 2016 @ 13:02:21
Hi
will the A20 SOM get eMMC also ?
May 04, 2016 @ 23:16:51
Does it fit in the metal boxes
May 05, 2016 @ 12:05:22
of course
May 04, 2016 @ 23:19:02
oh yeah and what about POE version?
May 05, 2016 @ 12:06:11
no plans for such, if you can fit POE in LIME form factor with current component density your help is welcome 🙂
May 05, 2016 @ 13:05:02
Great news… no kidding just ordered one to try out. Hopefully you will consider onboard emmc on future boards.
May 05, 2016 @ 13:19:22
I use the A20 SOM and this would benefit from eMMC as it suits bespoke
products which don’t always need removable SD and can sometimes be a problem
May 05, 2016 @ 13:20:21
Fit it to the A20 SOM please
May 06, 2016 @ 06:34:18
Finally. Thanks a lot!
May 14, 2016 @ 00:03:40
Hmm is this true, it is not documented on the shop:
Флэш-модуль Micron MTFC4GACAANA-4M IT стал одной из особенностей платы A20-OLinuXino-LIME2-eMMC … Поддерживается переключение из режима MLC в SLC, объем при этом уменьшается до 2 ГБ.
Short and loose translation – the memory can be switched from MLC to SLC configuration but then its capacity is halved – 2GB instead of 4GB.
From here:
http://www.ixbt.com/news/2016/05/04/olimex-a20-olinuxino-lime2-emmc-slc.html
May 14, 2016 @ 15:19:45
did you read FEATURES on the web page?
4GB MTFC4GACAANA-4M IT industrial temperature -40+85C eMMC Flash (SLC mode is subject to special settings and reduces the memory to 2GB default is MLC mode with 4GB Flash)
May 14, 2016 @ 19:54:32
I must have missed it, sorry 🙂
This is interesting on a technological level, I didn’t know there are such memory chips available.
May 30, 2016 @ 23:03:16
Any chances for industrial grade PHY ETH? Have you found something working?
May 31, 2016 @ 08:34:10
yes, we experiment now with KSZ9031
Jun 12, 2016 @ 04:20:34
Hi! This is fascinating!
In our application we need industrial operating range but we don’t use Ethernet when extreme conditions are possible (we use it only for configuration in lab environment). So here are the questions:
1. Is industrial grade DDR3 enough in our application (means, does PHY ETH don’t work by itself or it bring instability to the whole board)?
2. How is it possible to obtain (order) such boards?
3. If your experiments with KSZ9031 will succeed, how long would it take to manufacture something that one could buy?
P.S. We just desperately need this solution. The board fits perfectly to our needs and the temperature range is the only showstopper.
Jun 27, 2016 @ 17:41:41
It’s very nice to see that the classic A20 based boards are still getting updates. They have much more mature software support and are useful for the users who favour stability.
I wonder if it is difficult/possible to add SPI flash to the board variant without NAND/eMMC? The SPI NOR flash chips seem to be very cheap and generally cost less than 20 cents. Redesigning the board to fit an extra chip may be a PITA though.
https://linux-sunxi.org/Olimex_A20-OLinuXino-Lime2#Booting_from_SPI_Flash
https://patchwork.ozlabs.org/patch/631501/