On 19 July 2012 09:36, Guillaume Gardet <guillaume.gardet@free.fr> wrote:
Le 19/07/2012 10:27, Alexander Graf a écrit :
On 19.07.2012, at 10:22, Guillaume Gardet wrote:
Le 19/07/2012 10:11, Alexander Graf a écrit :
On 19.07.2012, at 09:52, Guillaume Gardet wrote:
Hi,
Le 18/07/2012 18:32, Alexander Graf a écrit :
Hi Manu,
On 18.07.2012, at 18:09, Manu Gupta <manugupt1@opensuse.org> wrote:
> Hi All, > > I have been looking on the internet for a ARM board. My current > budget > for an ARM board is 100 Euros / 6000 INR. While going through the > net, > I came across > BeagleBone > http://beagleboard.org/bone > Can you guys have a look at it and suggest me if its a okaish choice. > Is there anything else that you can suggest me under the same range. > One more question I had was, if I buy this board Can I connect it to > my Laptop's LCD as I cannot afford anything over and above the above > price range. Suggestions are welcome.
It really depends on the layer you want to work at. If you're fine to work on actual board bringup, any armv7 board will be helpful. There are lists for embedded devices available here:
http://raymii.org/cms/p_Small_Linux_PCs_overview
http://www.cnx-software.com/2012/06/26/list-of-39-low-cost-linux-friendly-bo...
There is also this website : http://tinyurl.com/ct8gy3s [0] which have some interesting boards. The list is not very big since it is a new website but the board finder is useful to filter boards. But it does not give the ARM version (armv5, armv7, etc).
Yeah, that part can be tricky. Here's a small cheat sheet to get you through the ARM numbering nightmare:
ARM9 -> armv5 ARM11 -> armv6 Cortex A8 -> armv7 (single core) Cortex A9 -> armv7 (usually multi-core, can be single-core) Allwinner A10 -> Cortex A8 -> armv7
Yes, it is a real nightmare! Wikipedia can help you if needed: http://en.wikipedia.org/wiki/List_of_ARM_microprocessor_cores
Ah, right. I forgot 3 interesting ones:
Cortex A15 -> armv7 (with virtualization) Cortex A5 -> big.LITTLE Companion core to Cortex A9 -> armv7 Cortex A7 -> big.LITTLE Companion core to Cortex A15 -> armv7
Not 100% correct ;-) Cortex A5 is not part of big.LITTLE, only A15 & A7. Cortex A7 also support virtualization like the A15 All three are available individually and are all multi-core capable.
Though A15/A7 are basically next-gen still, so it's very hard to get your hands on silicon. I haven't seen A5s in the wild either yet.
A15 & A7 are still a short way away, rumour has it that Exynos5 and OMAP5 SoCs will contain A15/7 chips. There are a couple of A5 devices announced, one from LG and one from a Chinese vendor (one of those USB style devices) but I can't find the links atm. I do have an A15 and A7 in a big.LITTLE config at work, but haven't had enough time to work with them yet.
Anyone not confused yet? :)
I've just done a course and that confused me even more! :-D
It is ok for me but I cheat since I work with ARM SoC since a while and I follow each new ARM. ;)
You forgot the next generation armv8 with 64-bit support and lots of new features! ;) Ok, AFAIK no silicon is out yet.
Correct, no silicon yet and probably wont be for a year or two.
Guillaume
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