XO 1.5 B1

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XO-1.5 Laptop Beta test model (B-Test), also known as B1.

Description

The B1 prototypes are just motherboards. OLPC received twenty of these on August 18, 2009, direct from the assembly line.

Identification

• The motherboard has a daughtercard for the WLAN.
• The motherboard has an internal SD slot

Photo coming soon

Software Support

Firmware

XO-1.5 use Q3xxx firmware releases. These will not work on an XO-1.

B1 motherboards require a release equal to or later than Q3A08f. Download it from Mitch's home directory on dev.

Check the XO 1.5 EC dev changelog for information about the latest EC firmware (integrated into the above OFW releases).

This may be installed by downloading and placing on a USB stick, then:

1. Ensure that you have both a somewhat charged battery and a DC power source
2. Boot the laptop, pressing the escape key ('X' in upper left hand corner of keyboard) within a few seconds after boot to enter Open Firmware.
3. Insert the USB stick containing the new firmware
4. Type:

flash u:\q3a08f.rom

Linux

A Linux image for the A1/A2/B1 is available at http://dev.laptop.org/~cjb/f11-1.5/os26/os26.img.gz.

To install on an XO-1.5's IDE drive, you can run:

zcat os26.img.gz > /dev/hda

To install on an XO-1.5's SD drive, you can run:

zcat os26.img.gz > /dev/mmcblk0

Documentation

Supporting documentation for these boards are (in PDF):

• Pinouts
• Connector Locations (wrong. Hasn't been updated yet!)
• Connector Locations (wrong. Hasn't been updated yet!)
• GPIO Mappings
• EC Pinout
• EC Power On Sequence
• Power Distribution Diagram

Followed by

• B2

Preceded by

• A2