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Openmoko is a software distribution stack that sits on top of a hardware platform. The Neo FreeRunner phone is the second hardware platform to take advantage of Openmoko. You can find specifications of the hardware by reviewing this introduction page and the pages in the category as shown at the bottom of this page.
Openmoko, Inc. is building a Linux based smart phone with full GPL compatible firmware source code for Openmoko, project code named GTA02 (Neo FreeRunner).
Detailed hardware component selection can be found below. See also the Neo FreeRunner GTA02 Hardware Requirements used in making these component selections.
The main Processor (CPU) of the Neo1973 GTA02 is a Samsung S3C2442B B54 (running at 400 MHz)
A NXP PCF50633 04 N3 is used for power management.
256MB integrated Samsung NAND flash inside the 2442 multi-chip package, attached to the S3C2442 NAND controller
16MBit ST M58WR016KB706E NOR flash for 'unbrickable emergency boot' feature.
128MB SDRAM (64MB inside 2442 MCP, 1x Samsung K4M51323PC) attached to S3C2442 SDRAM controller
The GSM (including GPRS) modem is Texas Instruments Calypso based.
Unfortunately we cannot provide many details on the GSM chipset due to very tight NDAs. However, this is not neccessarily required, since it interfaces using a standard UART serial line with the S3C2442. On that interface, GSM 07.05, GSM 07.10 and other standardized protocols are used.
The NDAd documentation for the calypso, register definition and hardware definition was leaked onto a public forum on the 4th of March by persons or persons unknown. The legality of reading these files may vary according to your local laws, as may generating code from them.
GPRS Class12/CS4
u-blox ANTARIS 4 chip
Two ST LIS302DL
Smedia Glamo 3362.
The GTA02 has one microSD aka Transflash slot. Using the Glamo 3362 MMC/SD controller
Toppoly (tpo) 2.8" diagonal (1.7" x 2.27" - 43mm x 58mm) 480x640 TD028TTEC1 module, using a Toshiba JBT6K74 TFT
LCD Driver Chipset.
Delta DFBM-CS320 Class2 Module, using CSR BlueCore4
This one is wired via PCM bus from the CSR Bluetooth chip to the Wolfson codec.
Accton (WLAN 802.11b/g SiP-M WM3236AQ(Flash Ver:2.0 Atheros AR6001GZ)
The USB Host controller is inside the S3C2442
It should also be possible to use host mode with externally-provided power. This will allow the FreeRunner to be connected to a USB device and be powered and charging the battery if present at the same time.
In addition you need to make sure EN_USBHOST signal that enables the physical Host mode power generation and disables the USB -> PMU charging path is deasserted. This may be taken care of automatically shortly by detection of the 48K resistor on a USB insertion leading to forcing EN_USBHOST deasserted. The charge pump that generates the 5V in host mode doesn't seem to mind getting external 5V given to it, but the real issue is that the battery will not be charged at all if we leave EN_USBHOST asserted since one of its jobs is to stop that happening.
The USB Device controller is inside the S3C2442
I2C is a simple communication standard intended to move small amounts of data a few inches between chips.
Please see Neo I2C Devices for more information & a list of devices & the addresses currently in use & documented for the Neo1973.
See also: Neo1973 Audio Subsystem
There's a WM8753 Wolfson Microelectronics CODEC (This is not a 'smart' codec that can interpret MP3/... it is a simple dumb 'sound card'.)
There's a National Semiconductor LM4853 Mono Amplifier at the analog audio output of the WM8753
There's a four-ring 2.5mm stereo jack which provides connectivity to old-fashioned wired headsets.
The headsets used by Motorola smartphones (A780,A1200, ...) and the V-360 have a compatible configuration.
ring
1(base): GND
2: right out
3: left out
4(tip): mic + HOLD-button(press:short to GND)
The Neo1973 GTA02 features two buttons:
The case for the FreeRunner is all black, as seen on the front page of the wiki.
Openmoko has released the CAD files for the case schematics for the Openmoko Neo1973 (GTA01) and Neo FreeRunner. These are available in the original Pro/E (.asm/.prt) format and alternative formats created from the originals.
We welcome your assistance in providing other formats. If you are able to convert CAD files from Pro/E format to other formats, please contact [1]. We are especially interested in the DXF format and in images rendered from these files.
Using 4 in 1 laser pen
The Neo FreeRunner (GTA02) Battery is mechanically and electrically compatible with the Neo1973 GTA01 Battery, as well as limited compatibility with a Nokia BL6C battery. According to this post on the mailinglist. Photo of the battery inside the Neo1973.
GTA02 should come with one of following microSD card
AKII Technology Charger
First generation of prototypes that was given to internal Openmoko software developers. Total 30 pcs fabricated.
Second generation of prototypes, Total 50 pcs run at Taipei SMT factory MOUNT
Production verification version, 2007/10/11 28 pcs fabricate at FIC SuZhou
Mass production release candidate version 1
2 weeks after v3 gerber out, release the v4 gerber, and 2007/10/20 20 pcs fabricate at FIC SuZhou
Mass production candidate version 2/Mass production version
Mass production candidate version 3/Mass production version
A6 will be fine tune version of A5, only minor schematic change for better product quality and version control. Capacitor and resistor change A6 also on mass production A5
This is the connector used to connect the Debug Board and possibly other hardware.
Connections are:
Information from [2].
Every hardware revision has its own u-boot image type. Thus, the bootloader has the revision hard-coded. The hardware revision is passed on to the kernel via the ATAG mechanism (ATAG_REVISION)
The kernel receives the ATAG_REVISION during bootup, and saves its contents in the "system_rev" global variable.
The kernel exports the system_rev variable in /proc/cpuinfo as "Revision :" line.