arm-netbook

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1076 discussions

microdesktop pcb revisions
by Luke Kenneth Casson Leighton 12 Oct '14

12 Oct '14

http://rhombus-tech.net/community_ideas/micro_desktop/news/ minor rework for production purposes, the 5 prototypes however should be good enough for testing and demo purposes for the crowdfunding campaign which will start early november. l.

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Microdesktop PCBs back from assembly
by Luke Kenneth Casson Leighton 10 Oct '14

10 Oct '14

http://rhombus-tech.net/community_ideas/micro_desktop/news/ ok so now we have: * EOMA68-A20 CPU Card * EOMA68-IC1t CPU Card * Micro-Desktop base unit testing begins when the micro-desktop base arrives, and the crowd-funding campaign will begin early next month if all functionality passes 100%. the EOMA68-A20 CPU card is not expected to require any rework (it's about the 4th revision as it is): the micro-desktop however is 1st revision and will need at least one minor correction (VGA connector). l.

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A biggish 3D printer on kickstarter
by joem 05 Oct '14

05 Oct '14

A biggish 3D printer on kickstarter: https://www.indiegogo.com/projects/wpt-3d-printer-professional-printer-for-… Big enough to print out complete eoma netbook or gadget box for USD600 (with all the risks of spending money on kickstarter projects). 250x250x300mm print volume I ordered one :)

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Re: [Arm-netbook] A biggish 3D printer on kickstarter
by Echo Peacock 04 Oct '14

04 Oct '14

Typos and flex funding. I wouldn't touch it personally. Sent from my Fire On October 4, 2014, at 4:58 AM, peter green <plugwash(a)p10link.net> wrote: joem wrote: > On Fri, 2014-10-03 at 17:41 -0400, Christopher Havel wrote: > >> Flexible funding. That's a little concerning... not necessarily an >> out-and-out indicator of a scam, but a red flag to me nonetheless. >> >> > I am not sure where that comes from. > > I was under the impression flex funding implies they had > all the resources they needed. So even an order for 1 unit > will get built because they are already building it. > There is video of working unit. > I thought the whole point of crowdfunding campaigns was to deal with those situations where you had a good idea but needed a minimum ammount of committed funds to make it viable to move forward and where eaither more traditional funding routes had failed or the creator didn't want to give up control. Flexible funding always strikes me as missing the point of a crowdfunding campaign and treating the crowdfunding site as merely an advertising and preorder site. _______________________________________________ arm-netbook mailing list arm-netbook(a)lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netbook(a)files.phcomp.co.uk

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What Linux Users Should Know About Open Hardware - Datamation
by Alexander Stephen Thomas Ross 29 Sep '14

29 Sep '14

http://www.datamation.com/open-source/what-linux-users-should-know-about-op…

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3D printable laptop (raspberry pi project)
by joem 26 Sep '14

26 Sep '14

3D printable laptop (raspberry pi project) out: http://liliputing.com/2014/09/pi-top-3d-printable-raspberry-pi-laptop-crowd… Its going for crowd funding. Close to what I had in mind for a 3D printed EOMA netbook but a little more flair needed with the case styling and more features rather than just a bland copy of a box with a lid. Better get a move on with openscad scripting Luke :) Things are moving on fast.. This PC also out and it seems very fast compared to previous ARM: http://liliputing.com/2014/09/mk902-ii-le-tiny-ubuntu-pc-rockchip-rk3288-cp… (No sata on it as far as I can tell.)

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PC Duino nano out
by joem 18 Sep '14

18 Sep '14

PC Duino nano out. Allwinner A20 dual core. Ethernet 10M/100M/1Gbps, SATA, Ubuntu 12.04 http://www.cnx-software.com/2014/09/18/39-pcduino3-nano-arm-linux-developme… http://www.pcduino.com/pcduino3nano/ At $39 very nice me thinks.

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eoma68-a20 v2.2 PCBs arrived
by Luke Kenneth Casson Leighton 16 Sep '14

16 Sep '14

ok i haven't tested them yet - wits tech kindly ran a preliminary check - they arrived over the weekend. they have at least been booted up from USB-OTG and an OS installed, so it is known that RAM, CPU, PMIC, NAND, HDMI and USB-OTG all operate correctly. i will be able to fully test the rest of the functionality once the micro-desktop PCBs are assembled, which should be another month or so. l.

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Operating Systems, CPU Cards, EOMA68
by Luke Kenneth Casson Leighton 10 Sep '14

10 Sep '14

this is triggered mainly by the discussion last month from manuel, i had a bit of time to think and i came up with an idea. if you recall, manuel asked "would it be ok to buy a specific model of CPU card, install an OS that only works with the Games Console?" and the answer was "yes... but you could not call it EOMA68 compliant" so anyway i thought about this a bit and i figured that it makes a lot of sense to have the OS (which really has nothing to do with the CPU Card per se) basically adjust so that it works with whatever it detects... ... in other words, from an end-user perspective, you would buy a Gaming *Card*, or an Work *Card*, or an Android *Card*, or a Photo/Camera *Card* that would have an OS preinstalled which adapts to the base units it's plugged into. i'd be interested to hear people's thoughts on this. l.

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Block Diagram EOMA-68 Handheld Games Console
by Miguel Garcia 10 Sep '14

10 Sep '14

I appreciate you analyze the block diagram. If you know any better component or an error or a missing connection, please tell me. Thanks. ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- Block Diagram EOMA-68 Handheld Games Console v.1.0 ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- A basic sketch of the block diagram: http://oi57.tinypic.com/16aeffb.jpg ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- ----------------- Slot PCMCIA: ----------------- Part Number: Amphenol G659EU1X2472X Datasheet: https://dl.dropboxusercontent.com/u/19251472/11/G659EU1X2472X.PDF Table of EOMA-68 pinouts: http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68#Table_of_EOMA-… ------------ Display: ------------ Part Number: BTL507212-W677L Datasheet: https://dl.dropboxusercontent.com/u/19251472/11/5.0''%20LCD%20HD%20-%20GL5005%20Spec_D.pdf Connections: - The MIPI pins are connected to MIPI pins of the MIPI-a-RGB IC. - The pins of the PWM are connected to PWR pins of the EOMA-68. - The display is connected to GPIO of the STM32F for power-up of LCD. --------------- MIPI-to-RGB IC: --------------- Part Number: SSD2828 Datasheet: https://dl.dropboxusercontent.com/u/19251472/11/SSD2828QN4_1.0.pdf Connections: - The MIPI pins are connected to MIPI pins of the display. - The RGB pins are connected to RGB pins of the EOMA-68. - The SPI pins are connected to SPI pins of the EOMA-68. ---------------- Touch Panel: ---------------- Part Number: no hay Part Number definitivo. Datasheet: no definitive part number. A datasheet of a similar part number: https://dl.dropboxusercontent.com/u/19251472/D50-L4030A-K0D.pdf Connections: - The I2C pins of the Touch Panel are connected to I2C pins of the EOMA-68. ----------- Battery: ----------- Part Number: LP8067100-CI Datasheet: https://dl.dropboxusercontent.com/u/19251472/11/LP8067100-CI.pdf Connections: - The pins of the battery are connected to battery connector. ------------------ Battery Connector: ------------------ Part Number: PH-LT-WT-NA Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/PH-LT-WT-NA%E6%89%BF%E8%AE%A4%E4%B9%… Connections: - The pins of the battery connector are connected to battery pins of the PMIC. ------------------ MicroUSB for Charging: ------------------ This microUSB is only responsible for charging the battery (no USB Host). Part Number (provisional): 47590-0001 Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/micro_usb_ab_475900001_sd.pdf Connections: - The power pins of the microUSB are connected to load pins of the PMIC. ------------------ LED of Charging: ------------------ This LED is used to illuminate when the battery is charging. We have not yet selected a part number (a generic LED). Connections: - The pins of the LED of Charging are connected to LED pins of the PMIC. -------------- PMIC: -------------- Part Number: AXP209 Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/AXP209-SpecSheet-Translated.pdf y http://hands.com/~lkcl/eoma/kde_tablet/AXP209%20Datasheet%20v1.0_cn.pdf Connections: - The PMIC are connected to PWR1, PWR2, PWR3 and PWR4 pins of the EOMA-68. - The PMIC are connected to I2C_SCL and I2C_SDA pins of the EOMA-68. - The PMIC are connected to a GPIO of the STM32F microcontroller (IRQ-OUT of AXP209). - The pins of the battery connector are connected to battery pins of the PMIC. - The power pins of the microUSB are connected to load pins of the PMIC. - The pins of the LED of Charging are connected to LED pins of the PMIC. ------------ EEPROM: ------------ Part Number: AT24C64 Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/AT24C64.eeprom.pdf Connections: - The EEPROM pins are connected to I2C pins of the EOMA-68. ------------------ Accelerometer: ------------------ Part Number: MXC6225XU Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/MXC6225XU.pdf Connections: - The Accelerometer pins are connected to I2C pins of the EOMA-68. - The Accelerometer is connected to a GPIO of the STM32F microcontroller (accelerometer IRQ). ------------ MicroSD: ------------ Part Number: MM027S020R Datasheet: http://hands.com/~lkcl/eoma/allwinner/litkconn_MICRO%20SD%20PUSH-PUSH%20A.p… Connections: - The MicroSD pins are connected to GPIO pins of the EOMA-68. - The MicroSD is connected to a GPIO of the STM32F microcontroller (for MicroSD "detect"). --------------- Power Button: --------------- The Power Button is a generic button with click Connections: - The Power Button is connected to 43 POWER# of EOMA-68. ----------------- Audio Jack: ----------------- Part Number: PJ-3545-5L1G Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/PJ-3543-L6G%20Model%20(1).pdf Connections: - The pins of the Audio Jack are connected to USB Audio Controller. ---------------- Speaker (x2): ---------------- We have not yet selected a part number (a generic Speaker (x2)). Connections: - The speaker pins are connected to Audio Amplifier pins (x2). ---------------------- Audio Amplifier: ---------------------- Part Number: UTC2822D Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/YW-UTC2822D_C.pdf y http://pdf.datasheetcatalog.com/datasheets/90/492970_DS.pdf Connections: - The Audio Amplifier is connected to the audio output that goes from the USB Audio Controller to Audio jack. - The speaker pins are connected to Audio Amplifier pins (x2). -------------- Microphone: -------------- We have not yet selected a part number (a generic Microphone). Connections: - The Microphone pins are connected to USB Audio Controller. -------------------------- USB Audio Controller: -------------------------- Part Number: CM108AH Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/CM108_DataSheet_v1.6.pdf Connections: - The USB Audio Controller is connected to USB HUB. - The USB Audio Controller is connected to a GPIO of the STM32F microcontroller (to alter volume on headphone-out). - The Microphone pins are connected to USB Audio Controller. - The pins of the Audio Jack are connected to USB Audio Controller. ------------- WIFI USB: ------------- Part Number: CCandC WM-294 1T1R Datasheet: https://dl.dropboxusercontent.com/u/19251472/11/WM-294_module-V2.2%28PCB%20… Connections: - The Wifi USB pins are connected to USB HUB. ---------------- Bluetooth USB: ---------------- The Bluetooth USB part number has not yet been chosen, even so, is a generic BT, so the onnection/power would be similar to the WIFI. Connections: - The BT USB pins are connected to USB HUB. ---------------- USB Host 2.0: ---------------- The USB Host 2.0 part number has not yet been chosen, even so, is a generic USB Host 2.0, so the connection/power would be similar to the WIFI. Connections: - The USB Host 2.0 pins are connected to USB HUB. ---------------- USB HUB: ---------------- Part Number: FE1.1s Datasheet: http://hands.com/~lkcl/eoma/kde_tablet/FE1.1s%20Data%20Sheet%20(Rev.%201.0)… Connections: - The USB HUB is connected to 1st USB pins of the EOMA-68. - The USB Host 2.0 pins are connected to USB HUB. - The BT USB pins are connected to USB HUB. - The Wifi USB pins are connected to USB HUB. - The USB Audio Controller is connected to USB HUB. ------------------------ Digital Buttons (x17): ------------------------ 4 buttons (2 digital triggers and Vol + and Vol-) would be generic buttons with click (although maybe we put rubbers to makes softer press them, should be viewed) and the other buttons are the typical buttons ABXY on the PCB with rubbers (similar to xbox 360 controller or snes controller). Connections: - The Digital Button is connected to a GPIO of the STM32F microcontroller (x17). --------------------------- Digital Trigger (x2): --------------------------- The analog trigger is a piece of plastic connected to a potentiometer, which when pressed moves the potentiometer, and to return to its original position there is a spring (see analog trigger of GameCube or Wii Classic Controller as an example). Part Number (potentiometer): Panasonic EVA-W7NR04B34 Datasheet: http://www.digikey.com/product-detail/en/EVA-W7NR04B34/P13569-ND/1135944 Connections: - The potentiometer pins are connected to an ADC of the STM32F microcontroller (x2). ----------------- Joystick (x2): ----------------- Part Number: CTS 254TA103B50B-ND Datasheet: http://www.digikey.com/product-detail/en/254TA103B50B/254TA103B50B-ND/17559… Connections: - The analog pins of the Joystick are connected to 2 ADCs of the STM32F microcontroller (x2). - The digital pin of the Joystick is connected to a GPIO of the STM32F microcontroller (x2). -------------------- Microcontroller: -------------------- Part Number: STM32F072xx (we have not yet chosen a specific part number). Datasheet: http://www.st.com/st-web-ui/static/active/en/resource/technical/document/pr… http://www.st.com/web/en/resource/technical/document/datasheet/DM00090510.p… y http://www.st.com/web/en/catalog/tools/FM116/SC959/SS1532/PF259717 Connections: - The STM32F is connected to 2nd USB pins of the EOMA-68. - The analog pins of the Joystick are connected to 2 ADCs of the STM32F microcontroller (x2). - The digital pin of the Joystick is connected to a GPIO of the STM32F microcontroller (x2). - The potentiometer pins are connected to an ADC of the STM32F microcontroller (x2). - The Digital Button is connected to a GPIO of the STM32F microcontroller (x17). - The USB Audio Controller is connected to a GPIO of the STM32F microcontroller (to alter volume on headphone-out). - The MicroSD is connected to a GPIO of the STM32F microcontroller (for MicroSD "detect"). - The Accelerometer is connected to a GPIO of the STM32F microcontroller (accelerometer IRQ). - The PMIC are connected to a GPIO of the STM32F microcontroller (IRQ-OUT of AXP209). - The display is connected to GPIO of the STM32F for power-up of LCD.

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