More than 300 pcs A20-OLinuXino-MICRO work hard 24/7 in Traffic light controllers in Moscow

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We got nice e-mail from Andrey Taranov Head of RnD of Voice-Link JSC, Moscow, Russia to let us know that for the last 3 years more than 300 traffic light controllers are build with A20-OLinuXino-MICRO and work in the field in Moscow.

“They works hard in tough mode, 24/7 and shows good stability. We found your product well done, stable, and we glad to have partners, as you, and plan to cooperate in the future.”

Their product looks solid and impressive.

A64-OLinuXino Open Source Hardware board with 64-bit Cortex-A53 processor is in released

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A64-OLinuXino OSHW board is now released. Current revision is Rev.C.

Features are:

  • A64 Cortex-A53 64-bit SoC from Allwinner
  • AXP803 PMU with Lipo charger and step-up
  • 1 or 2GB or DDR3L @672 Mhz
  • 0 / 4 or 16GB of industrial grade eMMC
  • SPI Flash in SO8 package with hardware WP (not assembled)
  • USB-OTG and USB-HOST
  • HSIC connector (not assembled)
  • Gigabit Ethernet
  • BLE/WiFi module
  • HDMI and MIPI display connectors
  • microSD card
  • Debug console serial connector
  • Audio In and Out
  • LCD display connector
  • GPIO 40 pin connector (not assembled)
  • UEXT connector (not assembled)
  • 5V power jack
  • Dimensions: 90×62.5 mm

For the moment we have three models:

  • 1G0G with 1GB RAM, no Flash, no WiFi/BLE
  • 1G4GW with 1GB RAM, 4GB eMMC and WiFi/BLE
  • 2G16G-IND with 2GB RAM, 16GB eMMC with industrial grade components -40+85C

The optional connectors and SPI Flash etc may be assembled upon request for small fee.

A20-OLINUXINO-MICRO now available also in Industrial temperature grade -45+85C

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We are selling for some time already A20-OLinuXino-MICRO Rev.J where few things were improved:

  1. We changed the LAN PHY from Realtek to Microchip as latter is more reliable supplier for both commercial and industrial temperature components, we searched desperately Realtek PHY in industrial temperature grade but without success.
  2. We extended the input working voltage from 6-16VDC to 8-24VDC
  3. We changed the NAND Flash to eMMC (but old NAND style flash is still possible to assembly)

The Ethernet PHY change requires new patches on the Uboot and Linux images which are already uploaded.

A20-OLinuXino-LIME2 now with PCB revision G

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A20-OLinuXino-LIME2 now is assembling on same PCB Revision G as A20-OLinuXino-LIME2-eMMC.

What are the improvement:

  • Ethernet PHY is changed to RTL8211E replacing the obsolete RTL8211CL no need for kernel patches;
  • we drop the odd shape which was necessary to fit LIME2 in the plastic box as we now have range of metal boxes;
  • the four mount holes now have grounding for better contact with chassis;

Meantime we silently work on further improvement for next revision (to be released March 2017):

  • adding SPI boot Flash;
  • replacing RTL8211E to industrial grade PHY, so the board can be produced completely in -40+85C operating temperature;

 

Pre-Christmas Crazy times – Expansion of production capacity with three new Samsung machines

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Probably many of you wonder why we are so silent recent months and nothing new is posting on the blog. The reason is quite casual – we are overwhelmed with work!

Starting from September something odd happens. Our OLinuXino customers went in crazy mode and we start getting almost twice more orders than usual. All who have been dealing with production know that to double capacity needs time.

This is the reason for the delay with iCE40HX8K-EVB, A64-OLinuXino, TERES release – there is simple no free window on the SMT assembly machines and testers to may run them, the machines are busy with OLinuXino and SOM assembly.

The small orders are shipping on time i.e. in 1-3 working days, but all bigger OLinuXino and SOM orders for 50+ boards are now shipped with a bit of delay as we have quite backlog for these boards.

We apologize to all our established customers which do wonder why the orders which we usually shipped to them in 1 week before, now are shipped with delay of 3-4 weeks.

We assure you that we do everything humanly possible to ship all orders ASAP.

To add little more crazyness the three new Samsung machines arrived two weeks ago. We wanted to build new space for them and working more than year on this, but the lazy and ignorant Bulgarian administration still didn’t issued us permit to start building, so we have to install them in the old building where we run out of space.

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One SM471 and  two SM482 with printers, loaders, unloaders, conveyors, packed in 20 wooden boxes were unloaded from the containers:

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Immediately we start to break walls, extend doors, and other funny things so the big machines may enter the building.

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We did same 1 year ago when our first Samsung came, but shortsighted decided to rebuild the walls with intention the new machines to be installed in the new building, without taking into account how long and difficult the building permit is to get in Bulgaria.

Now the three machines are installed and testing, but as you guess they will not run alone, so we will need new employees to train.

New Year – new luck we say here, I hope things will go back from crazy to normal mode in January!

EDIT:

Some words about the machines SM471 is the Samsung fastest and greatest from SM series. It has two heads with 10 nozzles each and dual rail conveyor which allow two different boards to be assembled at same time. With maximal performance 75000 csp (which you never reach on real boards). The machine can place down to 01005 components which are with size 0.4 x 0.2 mm (400 x 200 microns)!

SM482 is flexible mounter which can place both small and big components, we already have one such machine and it performs very well. The listed maximal speed is 28000 cps.

Each SM482 machine comes with full set of 8, 12, 16, 24, 32 mm feeders and tray changer which can hold up to 80 trays with components.

Both SM471 and SM482 support the new splice-less tape feeders which can be load even with component stripes without need to have initial empty cells on the tapes.

A20-OLinuXino-MICRO works hard inside Open Source Rover Octanis project in freezing Antarctica!

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One year ago we got request for sponsoring 5 pcs A20-OLinuXino-MICRO for Octanis project from group of students at EPFL, who are making an open source rover (http://octanis.org/rover) that will go to Antarctica.

Their goal was to use A20-OlinuXino-MICRO as a communications base station with LoRaWAN and to use it for onboard image processing of their stereoscopic camera images.

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Needless to say the magic words “open source rover project” closed the deal 🙂 We shipped the boards in December 2015 and yesterday got e-mail that the rover operates since February 2016, but he was moved to Antarctica in November and will stay there till February 2017.

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You can track the rover position right now at http://octanis.org/constellation/

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On GitHub you can see their 3D parts CAD files and all firmware running on the rover. You can reproduce this project with 3D printer.

 

 

 

Final updates on A64-OLinuXino GMAC and eMMC, we are ready to launch production

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We complete our test with Rev.B

Good news is that Gigabit interface works well with Micrel/Microchip PHY and result is real Gigabit bandwidth. A20 although having Gigabit interface can’t make more than 700 Mbit I guess this is related to A20 capability to handle the data from GMAC. With A64 the speed is  932Mbit i.e. very close to 1Gb:

root@A64-OLinuXino:~# iperf -s 
 ------------------------------------------------------------ 
 Server listening on TCP port 5001 
 TCP window size: 85.3 KByte (default) 
 ------------------------------------------------------------ 
 [  4] local 10.0.0.4 port 5001 connected with 10.0.0.1 port 41144 
 [ ID] Interval       Transfer     Bandwidth 
 [  4]  0.0-10.0 sec  1.09 GBytes   932 Mbits/sec

 

For eMMC we followed the advice to make it dual voltage 3.3V and 1.8V with aim to have faster transfers and we implemented it in the hardware, but the tests show that transfer is same even at 1.8V is a bit lower. I don’t know if this is due to lame software settings we do in the eMMC drivers, or just the eMMC we use have same transfer on both voltages (we check datasheet and the eMMC we use have same speed quoted on both voltages), so this may be useless for our eMMC chip:

eMMC clock: 52 Mhz

eMMC@3.3V 
root@A64-OLinuXino:/home/olimex# dd if=/dev/zero of=/mnt/output conv=fdatasync bs=384k count=1k; rm -f /mnt/output 
1024+0 records in 
1024+0 records out 
402653184 bytes (403 MB, 384 MiB) copied, 33.0437 s, 12.2 MB/s 
 
eMMC@1.8V 
root@A64-OLinuXino:/home/olimex# dd if=/dev/zero of=/mnt/output conv=fdatasync bs=384k count=1k; rm -f /mnt/output 
1024+0 records in 
1024+0 records out 
402653184 bytes (403 MB, 384 MiB) copied, 37.9408 s, 10.6 MB/s 
 
SDMMC clock: 40MHz 
 
SDMMC@3.3V 
root@A64-OLinuXino:/home/olimex# dd if=/dev/zero of=/tmp/output conv=fdatasync bs=384k count=1k; rm -f /tmp/output 
1024+0 records in 
1024+0 records out 
402653184 bytes (403 MB, 384 MiB) copied, 41.1578 s, 9.8 MB/s 
 

With SDMMC as we don’t know what SD card will be inserted the clock is set to default 40Mhz.

After re-checking that everything works, we make last cosmetic changes to audio part we noticed in the last moment and will run Rev.C in production.

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