I'm liking the OrangePi as an upgrade from the RPi for my signal processing 'host pc' on a project I'm working on. However, what would be nice is to transfer the design and incorporate it onto my PCB itself - even if the cost is (obviously) going to be higher. The only thing that is keeping me from doing so, is the fact that the AllWinner H3s don't seem to be something that is 'normally obtainable.'
I'm wondering: does anyone makes a similar kind of OSHW platform that is ARM based (1GHz+) with a processor that can be purchased from Mouser/Digikey?
(Forum search didn't come up with any good results)
Did you look at Olimex Allwinner A20. They have full boards and SOMs. I have dozens of them installed in industrial applications. Cannot recommend highly enough. I'm doing signal analysis with SciPy / numPy and I'm mis-using the on board audio codec as an ADC.
Can I buy the Allwinner A20 from Digikey/mouser/farnell or the like?
The AM3358 on the Beaglebone Black is available in any quantity you like from Digikey/Mouser/Farnell.
Spendy little bastards at $50+/pop but at least they can be obtained. The TI parts look to be the best contender as they're $22/ea
If you want to buy AllWinner chips, why not just ask the IC manufacturer to sell you some?
Since they do open source their Linux BSP, and promote the use of their chips in OSHW, then they should be interested in small maker market, so why not just ask them to sell you some?
Also, if you are being lazy, check out OSD3358, a BGA packaged AM3358 SoM, ready for use with down to 2 layer board, though 4+ layer is preferred.
http://www.digikey.com/product-detail/en/octavo-systems-llc/OSD3358-512M-BAS/1676-1000-ND/6012564
After clicking the link and seeing that it was a 400 ball BGA package, I was like, "Holy shit, blueskull is either the best PCB designer in the world for getting that on a 2 layer board, or he's been smoking some *really* good crack!"
Then I realized most of the balls must be NC, so it should be doable.
If you want to buy AllWinner chips, why not just ask the IC manufacturer to sell you some?
Since they do open source their Linux BSP, and promote the use of their chips in OSHW, then they should be interested in small maker market, so why not just ask them to sell you some?
Also, if you are being lazy, check out OSD3358, a BGA packaged AM3358 SoM, ready for use with down to 2 layer board, though 4+ layer is preferred.
http://www.digikey.com/product-detail/en/octavo-systems-llc/OSD3358-512M-BAS/1676-1000-ND/6012564
To a degree, the project I'm working on will have its design documents be released to the public. I've actually thought about trying to be a US side supplier of OrangePis just for convenience, but if I migrate the SoC to be on my board directly, its important for the would-be maker to be able to source parts.
The i.MX6UL Parts e.g MCIMX6G2, are all around 6€ in 100pc qty.
MCIMX6G0 is cheaper, but it doesn't have the LCD interface.
MCIMX6G1 has the same price as MCIMX6G2, but also doesn't have LCD interface
The i.MX6UL Parts e.g MCIMX6G2, are all around 6€ in 100pc qty.
MCIMX6G0 is cheaper, but it doesn't have the LCD interface.
MCIMX6G1 has the same price as MCIMX6G2, but also doesn't have LCD interface
I don't actually care about an LCD interface as the thing will run headless. What I am in need of is as much computational power as possible, which has me looking at the 1GHz+ space. This is why the TI offering looks to be the optimum outcome. $22/ea in 1pc and clocks at 1GHz.
i.MX6S 1GHz A9 17,6$ @ mouser at 1pcs
i.MX6DL 2x800MHz A9 29,6$ @ mouser at 1pcs
I've picked one processor from the list. Take look at the whole range, The i.MX6S goes up to 1.2GHz and i.MX6DL goes up to 1GHz
Also there should be OSHW boards available with those parts. IMO wandboard is one of them.
i.MX6S has 624 balls and it's available only in that package, unless you need exactly that processor or need all it's features then go for something in a smaller package.
i would suggest to go for the Sitara cpus from TI as others suggested above. If you don't need the industrial stuff like profinet,EtherCAT, EtherNet/IP (it has nothing to do with the regular 10/100/1000 ethernet which is present in all siatara 335x chips) then you can go for the lower ones - eg. you can have an AM3352 without 3D accelerator (ideal for headless systems) and without industrial interfaces under 15Eur (14.50eur in single piece @farnell) AM3354 with 3D and without industrial ifaces is approx 19Eur. and those Sitaras are coming in a friendly 324ball 0.8mm pitch backage.
btw.. i'm on a similar boat . need a small , relatively cheap and readily available linux system, raspberry Pi zero is unobtanium in quantities bigger than one single piece. and all other single board machines are either too big or too expensive and all of them have too much HW i don't need. so currently i'm working on a design using the AM3352.
I'm wondering: does anyone makes a similar kind of OSHW platform that is ARM based (1GHz+) with a processor that can be purchased from Mouser/Digikey?
BeagleBone (any official variant) is the thing you are looking for: the sources for the boards are available online [1] with a Free License, the IC is completely documented by the manufacturer, there is plenty of open source software in their repository [1] and the chip is buyable at Digikey in the quantity of 1!
If you want to reuse their design in your own project, this is the way to go.
https://github.com/beagleboard/
I'm wondering: does anyone makes a similar kind of OSHW platform that is ARM based (1GHz+) with a processor that can be purchased from Mouser/Digikey?
BeagleBone (any official variant) is the thing you are looking for: the sources for the boards are available online [1] with a Free License, the IC is completely documented by the manufacturer, there is plenty of open source software in their repository [1] and the chip is buyable at Digikey in the quantity of 1!
If you want to reuse their design in your own project, this is the way to go.
https://github.com/beagleboard/
$/GFLOPS for both GPU and CPU are horrible for BB CPU. AllWinner makes much cheaper chips with much higher raw speed.
Yes, but with the BBB: You can buy them from Digi-Key, there's a reference design freely available *and* you can buy the SoC as a module in case you need to route it on a 2 or 4 layer board.
I have designed an allwinner board and I can share some details:
-Chips can only be obtained via allwinner approved design houses; You can design your own boards but the design house has to be involved in the manufacturing or else they are not allowed to provide chips
-Documentation is all in Chinese
-They do some really funky things in their (application) designs
-(simple) android adjustments are super expensive
-You can't imagine how difficult it is to get rooted android from them
-AWT provides the design houses a example schematic; like >90% of all available allwinner tablets / boards are this schematic with almost no change to it
-AWT provides (orcad) sch and pcb files for DDR3 routing ; their length matching is out of spec according to their own DDR3 guideline document
-For each AWT chip there is a specific design guide (all the design / datasheet files for the A64 core you can just find on google; normal path is NDA and payment)
I have designed an allwinner board and I can share some details:
-Chips can only be obtained via allwinner approved design houses; You can design your own boards but the design house has to be involved in the manufacturing or else they are not allowed to provide chips
-Documentation is all in Chinese
-They do some really funky things in their (application) designs
-(simple) android adjustments are super expensive
-You can't imagine how difficult it is to get rooted android from them
-AWT provides the design houses a example schematic; like >90% of all available allwinner tablets / boards are this schematic with almost no change to it
-AWT provides (orcad) sch and pcb files for DDR3 routing ; their length matching is out of spec according to their own DDR3 guideline document
-For each AWT chip there is a specific design guide (all the design / datasheet files for the A64 core you can just find on google; normal path is NDA and payment)
Poor version and documentation control. Very common for asia companies.
I know I mentioned it already, but Nextthing GR8/CHIP Pro is intended to solve the AllWinner NDA and availability problems. Dev kits are supposed to ship this month, and they have been good at meeting schedules so far.
https://nextthing.co/pages/chipproIt looks good to me, but maybe the posters who have already tangled with AWT can give their impressions.
I think there might have been a slight derailment. There is no interest in the _modules_ or SBCs themselves. It's just the reference design I'm after, that uses an off-the-shelf ARM that I can get, which I am after. The idea is to transfer the schematics of the relevant parts to my radio design, and skip the unneeded business of dealing with a module. I would be running ARMBian, so the Android stuff is a nonissue for me.
Cheers!
I think there might have been a slight derailment. There is no interest in the _modules_ or SBCs themselves. It's just the reference design I'm after, that uses an off-the-shelf ARM that I can get, which I am after. The idea is to transfer the schematics of the relevant parts to my radio design, and skip the unneeded business of dealing with a module. I would be running ARMBian, so the Android stuff is a nonissue for me.
Cheers!
They have Debian which is the base of ARMBian.
Sent from my iPad using Tapatalk
IMX / TI stuff is probably the way to go.
You can get allwinner chips off taoboa but all low quantity ofcourse.
If you partner with a design house you can get as many as you want (they earn their money by selling the chip to you).
$/GFLOPS for both GPU and CPU are horrible for BB CPU. AllWinner makes much cheaper chips with much higher raw speed.
Well, this is only fair if you are only interested in raw computing power. In a case like this, you most probably don't need (or want to) design a new board from the chip itself.
On the other hand, the BB chip has some very nice features for embedded developments: both in hardware (such as the PRU and ADCs), and in documentation and support. And it is a very capable CPU, able to even implement SDR with GnuRadio (I did this myself). Most applications do not require much computing power beyond what the BB offers.