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Dirk Broer
12-09-2015, 11:19 PM
DBC? -I can hear you thinking- wasn't it SBC, single-board-computer?

Yes, most ARM development boards are SBCs, but in the Cortex-A9 landscape we've seen some interesting things.
The same Cortex-A9 of which I've written "Compared to their first ARMv7-A SOC, the ARM Cortex-A8, the Cortex-A9 offered an overall performance enhancement of well above 50%. Unfortunately some licencees saw that as an argument to sell their Cortex-A9 products at a much higher price too..."

We already had the CuBox and the Hummingboard. Pro's for the HummingBoard and CuBox, both made by SolidRun, are the versailabilty of the design with four -some argue even six- cariers boards and five different SOMs (i1, i2, i2eX, i4Pro, i4x4) to combine them with. As con I've named the price, and that still stands.

Now there's a competitor in Cortex-A9 land, offering a combination of baseboard and SOM at a very competing price, the LeMaker Guitar (http://www.cnx-software.com/2015/06/25/lemaker-guitar-is-a-25-single-board-computer-powered-by-actions-semi-s500-processor/).http://wiki.lemaker.org/images/thumb/3/35/IMG_5276.jpg/400px-IMG_5276.jpg
We already know Lemaker of one of the producers of the original Banana Pi and as makers of the Banana Pro. The Guitar is no slouch (http://www.mikronauts.com/lemaker/lemaker-guitar-review/9/) either. Our Belgium, Dutch and German members can buy one at Conrad.be (http://www.conrad.be/ce/nl/product/1404545/Raspberry-Pi-B-uitbreidingsprintplaat-LeMaker_Guitar-001-RevB_Bun-Raspberry-Pi?ref=searchDetail), Conrad.nl (https://www.conrad.nl/nl/raspberry-pi-b-uitbreidingsprintplaat-lemaker-guitar-001-revb-bun-raspberry-pi-1404545.html) or Conrad.de (https://www.conrad.de/de/raspberry-pi-b-erweiterungs-platine-lemaker-guitar-001-revb-bun-raspberry-pi-1404545.html), for just under 56 Euro's.

Let's compare SolidRun's offerings against the quad-core Guitar:



SOM Features
LeMaker Guitar


SOC
Actions Semiconductor Torch S500


Speed
1300 MHz


Video
PowerVR SGX544


RAM
1 or 2 GB


eMMC
8 GB (standard), 4 to 32 GB (optional)


Picture
http://p.globalsources.com/IMAGES/PDT/BIG/492/B0562223492.jpg


Base board Features
LeMaker Guitar


WiFi
Wi-Fi AP6181 802.11 b/g/n


IR
Yes


Bluetooth
Yes, 4.0


USB
micro USB 3.0 host/device port, 2x USB 2.0 host ports


LAN
10/100


Picture
http://www.cnx-software.com/wp-content/uploads/2015/06/LeMaker_Guitar.jpg


Price
$45




What does SolidRun offer, and what prices do they ask for it?



SOM Features
Som i1 Lite
Som i1
Som i2
Som i2ex
Som i4Pro
Som i4x4


SOC
Freescale iMX.6 Lite
Freescale iMX.6 Solo
Freescale iMX.6 Dual Lite
Freescale iMX.6 Dual
Freescale iMX.6 Quad
Freescale iMX.6 Quad


Cores
1
1
2
2
4
4


Speed
1000 MHz
1000 MHz
1000 MHz
1200 MHz
1200 MHz
1200 MHz


GPU
Vivante GC320 + GC355
Vivante GC880 + GC320
Vivante GC880 + GC320
Vivante GC2000 + GC320 + GC355
Vivante GC2000 + GC320 + GC355
Vivante GC2000 + GC320 + GC355


RAM
512 MB, 32 bit, 800 MT/s
1 GB, 32 bit, 800 MT/s
1 GB, 64 bit, 800 MT/s
2 GB, 64 bit, 1066 MT/s
2 GB, 64 bit, 1066 MT/s
4 GB, 64 bit, 1066 MT/s


WiFi
No
Optional
Optional
802.1 b/g/n (BCM4330)
802.1 b/g/n (BCM4330)
802.1 b/g/n (BCM4330)


Bluetooth
No
Optional
Optional
Yes, 4.0
Yes, 4.0
Yes, 4.0


LAN
10/100
10/100
10/100
10/100/1000*
10/100/1000*
10/100/1000*


IR
Receive only
Receive only
Receive only
Receive and transmit
Receive and transmit
Receive and transmit


Price
$?
$50
$67
$81
$120
$130


Carrier board Features
CuBox Carrier Base
CuBox Carrier Pro
Hummingboard Gate
Hummingboard Edge
Hummingboard Base
Hummingboard Pro


USB
2x USB 2.0
2x USB 2.0
4x USB 2.0
4x USB 2.0
2x Host USB 2.0
2x Host USB2.0, 2x Header USB 2.0


Price
$70
$80
$70
$102
$70
$85


*= Note that due to internal i.MX6 buses the 1000Mbps interface speed is limited to 470Mbps.

The only thing where the SolidRun offerings seem to have things going for them is the amount of RAM per core and the speed of the LAN connector in their Quads and deluxe dual models.

Dirk Broer
07-12-2016, 10:36 AM
They don't sit still at Lemaker, they've improved their Guitar (http://wiki.lemaker.org/LeMaker_Guitar). No longer is there a Baseboard and a 1 or 2 GB SoM, you now also can choose between three different Baseboards:

Model A (with 14 Grove interfaces)
Model B/B+
Model D (which supports up to four Guitars)

So far I can only order the 1 GB SoM with the original Model B board here in the Netherlands. On Amazon.co.uk (https://www.amazon.co.uk/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=lemaker+guitar) however....
The 'D' board seems a potential 16-core, 4 to 8GB -headless- cruncher now and might become even more interesting when they bring out more SoMs (e.g. Cortex-A7 and Cortex-A17 -to mix these, or the same with Cortex-A53 and Cortex-A57) to go with their Baseboards.
What the 'C' board is like can only be guessed at..