arm-netbook

arm-netbook@lists.phcomp.co.uk

1077 discussions

EOMA68-RK3288 schematic PDF
by Luke Kenneth Casson Leighton 24 Nov '16

24 Nov '16

http://hands.com/~lkcl/eoma/rockchip_rk3288/EOMA68_RK3288_SCH_2016nov23.pdf datasheets as i find them are also in the same directory. with kind help from randy li i've been able to get the board done pretty quickly: i'm almost ready to submit it for first prototyping. i *may* go and visit rockchip before doing that, though. l. --- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

2 3

EOMA68 laptop housing battery control
by Jonathan Frederickson 24 Nov '16

24 Nov '16

I'm curious, since unlike most laptops the computer is in a separate unit... is the charge level of the battery reported to the OS as it would be for a traditional laptop or phone? Would be interested to know if this is supported in general, only with certain CPU cards, or not at all.

3 6

RK3288-EOMA68
by Luke Kenneth Casson Leighton 20 Nov '16

20 Nov '16

http://rhombus-tech.net/rock_chips/rk3288/news/First_Revision_EOMA68_RK3288… one of the maddest, most complex and densely-connected PCBs i've yet done... :) l. --- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

2 7

RK3288
by Mike Leimon 16 Nov '16

16 Nov '16

Regarding the RK3288, allow me to redirect your attention to a page on the archlinuxARM website: https://archlinuxarm.org/platforms/armv7/rockchip/asus-chromebook-flip-c100p The ASUS Chromebook Flip uses the RK3288 processor and has at least some degree of support on the Linux side or I don't think the ArchlinuxARM guys would have been able to support the platform. Anyhow, perhaps you guys can find out some useful info from the associated installation and wiki pages for this system. -Mike

2 1

RK3288
by Luke Kenneth Casson Leighton 15 Nov '16

15 Nov '16

i still have to write it up but i've discovered that it's possible to obtain PCB CAD files on taobao for the RK3288. with mike's help (and around $20) i've been working for the past 4 days on an EOMA68-RK3288 board. the RK3288 apparently supports up to 4GB of RAM, which is the primary reason why i'm looking at it at the same time as the nexell S5P6818 (which is 8-core but only does up to 2GB RAM). the RK3288 was apparently designed for chromebooks, hence the increased RAM. what's nice is that i have the assistance of an engineer who works for rockchip, thanks to an introduction. i'll be arranging to go visit their HQ in a few weeks, to say hello. l. --- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

5 9

[Arm-netbook] https://apple.slashdot.org/story/16/11/14/1240245/china-threatens-to-cut-sales-of-iphones-and-us-cars-if-naive-trump-pursues-trade-war
by Luke Kenneth Casson Leighton 14 Nov '16

14 Nov '16

ok, so the two key areas that i've been focussed on - computing and vehicles - the new completely incompetent president (voted in by the american people) may have triggered the conditions i was anticipating, for which the EOMA initiative is PRECISELY designed to migitate. there is now some urgency to getting the EOMA68 designs out and into mass-production. it's not about what happens if china carries out this first threat, it's what happens long-term, both to china and to the rest of the world, if the U.S. President is stupid enough to think that U.S.-China trade is not absolutely critical to both countries (and to the rest of the world). to put this into immediate perspective: the EOMA68 project items that people have pledged for: those people in the USA may end up having to pay that 45% tariff. l. --- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

1 0

eoma68-a20 v2.6 samples working
by Luke Kenneth Casson Leighton 05 Nov '16

05 Nov '16

briefly: samples are working, as is the micro-desktop v1.4 - still to confirm: hdmi, nand, 2gb memory and the eoma68 micro-sd. l.

5 5

closed-source BootROM and RYF certification
by Parobalth 03 Nov '16

03 Nov '16

My original message went to moderation queue because it exceeded the allowed file size. So I am forwarding my message without the pdf attachment to the list. ----- Forwarded message from Parobalth <parobalth(a)gmail.com> ----- Date: Sat, 29 Oct 2016 20:13:10 +0200 From: Parobalth <parobalth(a)gmail.com> To: arm-netbook(a)lists.phcomp.co.uk Subject: closed-source BootROM and RYF certification User-Agent: Mutt/1.5.23 (2014-03-12) At the forum of NextThing Chip is a thread about Chip and a possible RYF certification. I wrote there that I think that is unlikely to happen and linked to https://www.crowdsupply.com/eoma68/micro-desktop/updates/fsf-ryf-background. Then someone else mentioned that a closed-source BootROM is used for Chip. Another guy with username "eaterjolly" wrote about this BootROM: "The same type of SOC is used for the EOMA croud project which is vying for ryf-endorsement quite openly [...]" You can find the forum thread here: https://bbs.nextthing.co/t/ntc-thoughts-on-ryf-endorsement/4490 Because they use Discourse to power their forum which relies heavily on JavaScript I also attach a Pdf version of the forum post. I wonder if the mentioned statements are correct and how it relates to the RYF certification of the EOMA68-A20 Libre Tea card. kind regards Paro ----- End forwarded message -----

2 2

Block Diagram - ZEOMA - Handheld Games Console
by GaCuest 03 Nov '16

03 Nov '16

Hello everyone. I suppose many of you know the handheld games console project based on EOMA68 (the provisional name is ZEOMA). The website (it is outdated (the images are also outdated), when the project is more advanced I'll update) (thanks to Peter Bouda) is: http://www.ubrew.it/ The features of the console are: - 4.5 inch 480x854 IPS screen. - Resistive touch panel. - DPad + A B X Y buttons + R button + L button + 2 Analog triggers + 2 Analog Joystick (with push button) + Start + Select + Home + Vol +/- + 2 extra buttons. - 4000 mAh battery. - Stereo. - MicroSD slot. - USB 2.0 Host. - MicroUSB (for charging). - STM32F072 for controls. - AR9271 WIFI. I have done a small block diagram you can see here: http://george.the-petries.co.uk/shared-write-access/eoma/Block%20Diagram%20… I have placed the datasheets of the components here: http://george.the-petries.co.uk/shared-write-access/eoma/Datasheets%20ZEOMA/ I have no prior experience designing schematics and PCB, but I will try to do my best. If I have any questions, I will ask you. I will publish all the schematics and PCB under GPLv3+. If anyone have any suggestions or improvement, I appreciate it. Thanks to Luke for all his help. Also thanks to Alexander for allowing us to store the files of the project in his server.

18 67

nexell s5p6818 pcb v0.1
by Luke Kenneth Casson Leighton 03 Nov '16

03 Nov '16

http://rhombus-tech.net/nexell/s5p6818/news/First_Nexell_EOMA68_S5P6818_PCB… on the way. final 0.1 pcb revision sent to nexell for review. l.

2 2

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

arm-netbook