Bookmark the date for PCB donation campaign start

Bookmark the date of our PCB donation campaign (details below), now that the electrical schematics that came out of the first donation campaign are in our hands.

The schematics are now under review by our hardware volunteers and at the same time, during this month, we have been preparing the steps to certify our hardware design as Open Source Hardware following the OSWHA Certification procedure.

Open Hardware Compliance

OSHWA Certification

OSHWA Certification Process

Through our OSWHA colleagues, we contacted the NYU Technology Law and Policy Clinic. They helped us for free to see how we could certify the motherboard project as Open Source Hardware. Students and Professors of the Clinic have analyzed how to find the best path to achieve OSHWA certification. In the meantime we have contacted the chips vendors to verify their agreement to distribute as Open Source Hardware our electrical schematics and the future PCB design. Among others, NXP has answered positively. With the Law and Policy Clinic we have extensively studied the practical implications of the requirements for the OSWHA Open Hardware certification, and cross-checked our approach with OSWHA personnel.

So most of the datasheets of the chips used in our schematics are freely downloadable as you can see below.

An important part of being considered Open Hardware compliant ( OSHWA Open Hardware certification), imply that everything that is under our control and  that is useful to produce our motherboard, should be publicly disclosed, such schematics, PCB, Gerber-files and all their accompanying information.  Still is Open Hardware If we have done what was in our power to use open components, but a third-party sources impose us restrictions to share some information related to their components used in our design.

Bookmark the date of our PCB donation campaign

Bookmark the date

Bookmark the starting date of the PCB donation campaign: mid-January 2019.

That is going to be the time when we will make publicly available the reviewed electrical schematics that we were able to obtain thanks to the previous campaign. If you have reserved some donations to our project for the Christmas you can donate using the old donation campaign, will be automatically transferred to the PCB campaign, or you can wait until mid-January when will start of the PCB donation campaign. Please if possible “alert” even other passionate people about the imminent campaign.

Finalized list of components

Having received the finalized version of the electrical schematics – we are currently revising them prior to publication- the list of components is now also finalized, even if the revision could imply few minor changes.

The laptop external connectors, that depends from the notebook chassis, are not final due to the interdependence with the laptop chassis, will be added later when the notebook chassis will be finally selected.

You will find the details related to a significant part of the  selected components in the datasheets accompanying the electrical schematics that will be made publicly available in mid-January, despite sometimes a login could be required.

Here is a preview of a part of the components:

CPU: NXP T2080: Datasheet ( login needed )

Sata3 Controller: Marvell  88SE9235

USB3 Controller: Renesas μPD720201 Datasheet

PCIE Switch: Diodes Pericom r PI7C9X2G404SL

HDMI Transmitter: ON Semiconductor CM2020-01TR datasheet

Power Convertor: LTM8064EY#PBF datasheet

Smart Battery Charger Controller: LTC 4100 datasheet

Gigabit Ethernet Transceiver with RGMII Support: Microchip KSZ9031RNX datasheet

MXM3.0 Compatible Connector: JAE MM70-314-310B1-2-R300  datasheet

Others:

Frequency Synthesizer : DT9FGV0641 datasheet

100V UV/OV and Reverse Protection Controller with Bidirectional Circuit Breaker: LTC4368 datasheet

4-channel I2C-bus switch with reset: NXP PCA9546A datasheet

 

block diagram

PowerPC Notebook motherboard Block Diagram

PowerPC Notebook motherboard Block Diagram

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