arm-netbook July 2014

arm-netbook@lists.phcomp.co.uk

14 participants
14 discussions

IC for analog and digital buttons (EOMA-68)
by Miguel Garcia 15 Aug '14

15 Aug '14

We are designing a handheld-game console (based on EOMA-68). The problem is that EOMA-68 has very few GPIO. We have 17 digital buttons, 2 analog joystick ( http://www.digikey.com/product-detail/en/254TA103B50B/254TA103B50B-ND/17559… ) and 2 analog triggers ( http://www.digikey.com/product-detail/en/EVA-W7NR04B34/P13569-ND/1135944 ). Luke will use on the tablet the next IC: PCA9536. However, this component does not meet our requirements. Does anyone know a IC that meets these requirements (at least 17 digital buttons and at least 4 ADCs)? Thanks.

11 87

[A33] main routing completed
by Luke Kenneth Casson Leighton 01 Aug '14

01 Aug '14

http://rhombus-tech.net/allwinner/a33/news/ quite a beautiful board. 4-layer. just the planes to complete, verification check on the schematics, and it's almost done. only one week so far and that's evenings only! l.

3 3

a33 quad-core cpu card
by Luke Kenneth Casson Leighton 27 Jul '14

27 Jul '14

http://rhombus-tech.net/allwinner/a33/news/ well i received the documentation middle of last week, i basically started yesterday evening and am almost 50% done already! the a33 would be the first quad-core cpu card, with 2gb RAM. can't do much about etherhet, it has to be an SMC9514. but that's pretty awesome. l.

1 0

[Arm-netbook] http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68#Table_of_EOMA-68_pinouts
by Luke Kenneth Casson Leighton 26 Jul '14

26 Jul '14

more revisions to the interface, these are last-minute just before finalising: * the revision 2.2 A20 cpu card * the revision 0.1 ICubeCorp IC1T cpu card * the revision 0.1 Ingenic JZ4775 cpu card * the revision 0.1 Micro-Desktop base board * the revision 3.0 Tablet / Mini-Laptop base board * also i have received the documents for the quad-core Allwinner A33 so will be starting a CPU card for that with 2GB RAM, shortly. i will have enough money coming in beginning of this month to send the revision 2.2 A20 CPU Card off to the factory for 5 samples. the revision 0.1 Micro-Desktop will follow very shortly after that. the IC1T icubecorp found me an SD-based TSOP-48 from a company called FORESEE, which comes in a low-cost 2GB variant. i will add that in (replacing the BGA variant which is 4Gb minimum, requires very small tracks, is more expensive and is making me nervous). the jz4775 cpu card i had to do a minor shuffle of the I/O lines as there was some I/O multiplexing sharing SPI with MMC so there is a bit more work there. heck of a lot going on, it is ironic that about four really good CPU cards should all come out pretty much at the same time... l.

4 12

sunxi-tools in Debian
by Philip Hands 24 Jul '14

24 Jul '14

Hi, I just noticed this on planet.debian.org, and thought it likely to be of interest to some people here: http://www.hellion.org.uk/blog/posts/sunxi-tools-in-debian/ [from Ian Campbell's blog] Cheers, Phil. -- |)| Philip Hands [+44 (0)20 8530 9560] http://www.hands.com/ |-| HANDS.COM Ltd. http://ftp.uk.debian.org/ |(| 10 Onslow Gardens, South Woodford, London E18 1NE ENGLAND

2 1

tablet/laptop pcb rev3
by Luke Kenneth Casson Leighton 24 Jul '14

24 Jul '14

ok opportunity with the cpu card interface redesign to do a layout change, i'm taking out the atsam4s and replacing it with a VC0345 camera IC, PCA9536 I2C-to-GPIO converter, and am putting in a Micro-SD on the top edge of the PCB (so that things like the IC1T card can use it). ethernet and the extra USB i will route to an FPC which can go to a daughterboard for when this is used in a mini laptop. USB audio remains as-is using the CM108AH. basically the tablet pcb becomes a usb / i2c peripheral board, something i didn't want to do because i wanted the educational and experimentation sector covered as well. l.

2 3

ingenic jz4775
by lkcl . 16 Jul '14

16 Jul '14

wow, it turns out that the full source code for everything - *including* the VPU - is available. i am amazed and delighted. full source code download instructions are here: http://www.ingenic.cn/en/en/download.php?pid=857&fid=795 l.

2 1

IC1T and jz4775 news pages
by Luke Kenneth Casson Leighton 12 Jul '14

12 Jul '14

for when phil's server (or rapidswitch) are responding, these will be available: http://rhombus-tech.net/icubecorp/IC1T/news/ http://rhombus-tech.net/ingenic/jz4775/news/

2 2

list upgraded
by Alain Williams 10 Jul '14

10 Jul '14

If there is anyone with a dmark setting address (eg yahoo.com) their emails will be treated slightly differently but it should work. They may find that they have an administrative block put on them -- I did that to prevent problems earlier. Please ask and it will be removed. -- Alain Williams Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer. +44 (0) 787 668 0256 http://www.phcomp.co.uk/ Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php #include <std_disclaimer.h>

2 1

This list may be up & down for a bit
by Alain Williams 10 Jul '14

10 Jul '14

I am going to update the software to mailman 2.1.18-1 My motivation is to deal with the problems that were causes by yahoo a few months ago when it changed its dmarc settings. This was why yahoo users were forbidden from posting to the list. This should fix this; the new version has been out for a couple of months and should (hopefully) not cause problems. Those interested in the nitty gritty look at: http://list.org/mailman-admin.txt and search for 'dmarc'. This will happen over the next day or two. Regards -- Alain Williams Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer. +44 (0) 787 668 0256 http://www.phcomp.co.uk/ Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php #include <std_disclaimer.h>

1 0

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

arm-netbook July 2014