arm-netbook

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lkcl: you jammy toe rag!
by joem 22 Oct '13

22 Oct '13

http://www.gplsquared.com/eoma_boot/video-2013-10-21-15-06-42.mp4

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Progress Report
by martin brook 22 Oct '13

22 Oct '13

Hi Guys, Just a quick note on my progress with EOMA and MEB EOMA Adaptation packages at http://repo.merproject.org/obs/home:/vgrade:/branches:/home:/mdfe:/hw:/sunx… Followed instructions at http://www.gplsquared.com/eoma_boot/eoma_boot.html to get eoma to boot from sdcard, please note use, http://www.gplsquared.com/eoma_boot/script.fex_2013_09_17 Mer image boots from sdcard, hdmi, serial, ethernet all working Pic of board running libhybris test_glesv2 https://twitter.com/vgrade/status/392416401790869504/photo/1 Thanks to all involved in bringing EOMA, MEB, linux-sunxi to the community. BR Martin

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stress! and working with libopencm3, stm32sprog and an STM32F103
by luke.leighton 21 Oct '13

21 Oct '13

well. there is a particular issue with stm32sprog which has massively hindered progress over the past few weeks. it's very simple: when uploading and running a program using stm32sprog, if it has interrupt service routines it is guaranteed to crash. however if you then set BOOT0 to 0 and do a RESET, the program will work absolutely fine [assuming it's coded correctly] this simple little thing has prevented progress over the past couple of weeks because it has been impossible to distinguish "code incorrectly written" from "code that crashed due to stm32sprog". dozens of examples and bits of code that _should_ have worked - DMA, ADC, DAC, Timers - will and can now all be revisited. patience, patience... ... anyway i'm currently tracking how to get timers to update from an external gpio pin, and from there to fire DMA. it _is_ possible... just.... requires a huge amount of careful reading and research just to come up with only 30 lines of code that connect all the dots together without connecting any of the thousands of other options. i think... to be absolutely honest, if i had known that the STM32F was so comprehensive / complex i would have said "sod it" and used a low-cost FPGA instead. but, hey, this is kinda hair-raisingly fun.... l.

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Allwinner A10 vs A20 power requirements
by Alexey Eromenko 20 Oct '13

20 Oct '13

Hi, I was unable to find the power requirements for A10 and A20 chips. (under near idle use and max. Performance scenarios) Do you know where that data is buried? (A20-based Cubietruck, according to documentation, can work with 0.5 amp x 5 volt = 2.5W total for the board, without SATA. ) What about Raspberry Pi's Broadcom chip? What it's power requirements? Alexey

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Re: [Arm-netbook] My little idea...
by Hans-Christian Jehg 18 Oct '13

18 Oct '13

On Wed, 16 Oct 2013 14:12:24 -0400, Christopher Havel wrote: > Here, have a scan, guys! -->http://i.imgur.com/f2lbm3R.jpg > > There's the VGA interface. Any tweaks you want to add, add. WOW > To enable 18b VGA you need one GPIO. > Adding 24b capability requires a second GPIO. The circuit as drawn uses > GPIO3 and GPIO4 to not conflict with the earlier schematics which use > GPIOs 0,1,2 to drive the Ethernet port LEDs. How about putting those VGA GPIO on an I2C extender to keep GPIO free for something that needs GPIO? - Just a thought :-) HC

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A20 Hummingbird Development System
by krasi gichev 18 Oct '13

18 Oct '13

Anyone checked this one? I got notification from wits-tech about it.

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MEBv1 - All dressed up and no EMOA to go.
by Scott Sullivan 18 Oct '13

18 Oct '13

EMOA MEB's, Now in Colour! http://revident.net/projects/emoa-68/meb-v1-w-cases-in-colour.jpg So, the last to arrive due to a shipping malfunction, my MEBs arrived today. This evening I spent some time with the Laser Cutter at Hacklab.to to cut out Joem's cases design. I didn't get in on the initial batch of cards due to constraints in time, budget and skills. Now that the peripherals are confirmed I'm looking forward to standing on the shoulder of giants. Great projects lay ahead. -- Scott Sullivan

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Re: [Arm-netbook] EOMA68-A20 + SATA dock becomes accidental PC that boots in 20 seconds
by Arokux X 18 Oct '13

18 Oct '13

Hello Christopher, what is the state of the MEBv2? Luke just told sunxi.org this is the only critical piece that holds 2.5k A20-EOMA from seeing the world :) Best, Arokux

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Chinese PC for $90 - CubieTruck
by Alexey Eromenko 17 Oct '13

17 Oct '13

http://store.r0ck.me/blogs/news/9361679-cubietruck-is-ready-to-order-now And Cubietruck.com based on AllWinner A20 CPU + 2 GB RAM ! Should be good ! (I hope it will run Debian-ARM with KDE and Android just fine) Have ordered one to see how it goes. Previous efforts were either too weak (VIA APC) or lacked I/O ports. (Cubieboard, Riko MK802, ...) or both (Raspberry pi). I believe It's the first system that's good. First sub- $100 PC ! What do you think of it? -- -Alexey Eromenko "Technologov"

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NAND flash memory purchasing
by Hrvoje Lasic 17 Oct '13

17 Oct '13

Does anybody in this list have experience buying NAND flash memory in China. If so what is the best way to see which memory is easily accesible (and therefore cheap)? <lasich(a)gmail.com>

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