Revision as of 15:10, 13 December 2007

このページは、OLPCチームによってチェックされています。

翻訳された Hardware specification	原文
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This is an on-going translation

ノートPC　ハードウェア

XOノートPCはOne Laptop Per Childの中心となるものです。3年に渡る開発の後に量産が始まりつつあり、数千のベータテスト(B2)装置が開発者によって使われ、参加国の学校でテストされています。技術の進歩に追従するためにノートPCの設計の最終的な小変更が行われました。

仕様

XOの寸法入り図面。拡大するにはクリック

正式なノートPCの仕様はPDFでのみ提供されます。このページはできる限り正確にその情報を反映するようにします。

寸法

おおよその寸法: 242mm × 228mm × 30mm (詳細な寸法は右の図面を見てください)
おおよその重量:
- LiFePバッテリ付のXOノートPC: 1.45kg (~3.20lbs)
- NiMHバッテリ付のXOノートPC: 1.58kg (~3.48lbs)
構成: 回転軸付きコンバーチブル・ノートPC、反転可能なディスプレイ、防塵および防滴筐体、ファンなし

核となる電子部品

CPU: x86互換プロセッサ、64KBのL1とIおよびDキャッシュ、最低128KBのL2キャッシュ
- AMD Geode LX-700@0.8W (データシート)
CPUクロックスピード: 433 MHz
ISA互換: MMXと3DNow!のx86拡張命令セットをサポート
- Athlon命令セット(MMXと3DNow!拡張を含む)に加えてGeode専用命令セット
周辺チップ: CPUに統合されたPCIとメモリインタフェース
- ノースブリッジ: Geode CPUに統合されたPCIとメモリインタフェース(情報)
- サウスブリッジ: AMD CS5536 (データシート)
グラフィックコントローラ: CPUに統合、統合メモリアーキテクチャ
組込コントローラ: ENE KB3700またはENE KB3700B
- 組込コントローラ: ENE KB3700
DRAMメモリ: 256 MB ダイナミックRAM、データレート: デュアルDDR333-166MHz
BIOS: 1024KB SPIインタフェースフラッシュROM
オペレーティングシステムをロードするためのOpen Firmware
大容量記憶装置: 1024 MB SLC NANDフラッシュ、高速フラッシュコントローラ
デバイス: 回転メディアなし.
CAFE ASIC (カメラとフラッシュイネーブラチップにより、高性能カメラ、NANDフラッシュ、SDインタフェースを提供)、Marvell 88ALP01: CAFE仕様

プロトタイプA マザーボード

ディスプレイ

液晶ディスプレイ: 7.5” デュアルモードTFTディスプレイ
表示エリア: 152.4 mm × 114.3 mm
2つのモード: (1)グレイスケール(白黒)反射モード(屋外での使用時に太陽光で読み取れる) (2)カラーバックライトモード(屋内で使用)
- 反射モード: 高解像度(200 DPI)、1200(H) × 900(V) グレイスケールピクセル、消費電力 0.1–0.2W
- バックライトモード: 高解像度ディスプレイの組込みサブピクセルサンプリングにより、およそ800(H) × 600(V) カラーピクセル、消費電力 0.2–1.0W
メモリ内蔵ディスプレイコントローラチップ(DCON)は、プロセッサがサスペンドしていても、表示を可能にします。また、DCONはディスプレイのためにデータを初期化します。
この液晶ディスプレイは私たちの究極の低消費電力技術に基づきます。このXOは、CPUとマザーボードの大部分が、ユーザが気付かないほど定期的に高速で電源を断続していても使用できます。この方法により、大きく電力を節約することができます(たとえば、使用していないときに(たとえ数秒間でも)、電源管理機能がマザーボードを切っても、ディスプレイは表示されたままです)。

注記: Webブラウザの画像は、非常に荒く[800 × 600]、ブラウザのウィンドウを埋められるように現在拡大されています。

OLPCの試作ディスプレイ上で動作するeToys (Squeak)

統合された周辺機器

キーボード: 80+ キー、1.0mm ストローク、密閉されたラバーメンブレン・キースイッチ部品
- キーボードレイアウト
- レイアウト図: 英語, アラビア語, タイ語, 西アフリカ(ナイジェリア), ポルトガル語, スペイン語, アムハラ語, フランス語(検討中), ウルドゥー語, キリル文字, トルコ語(検討中), ネパール語, モンゴル語, カザフ語, デバナーガリ文字, ウズベク語, パシュトウ語, ダリ語
ゲームパッド: 2組の4方向カーソルコントロールキー
タッチパッド: 静電/抵抗膜式デュアルタッチパッド、手書き入力モードをサポート
- アルプス電気静電/抵抗膜式デュアルタッチパッド
オーディオ: AC’97互換オーディオサブシステム、内蔵ステレオスピーカーとアンプ、内蔵モノラルマイク、外部ヘッドホンとマイク端子
- Analog Devices AD1888およびAnalog Devices SSM2302 音声増幅用

キーボード詳細

カメラ: 内蔵カラービデオカメラ、30 FPSで解像度 640 x 480、マイクとカメラの記録状態を表示する独立した(ソフトウェアから制御できない)表示装置、カメラとデバイスドライバは、教育用アプリケーションのための光度計センサとして使用できるようにするためにAGC(自動利得制御)と自動カラーバランスの無効化をサポート
- Omnivision OV7670
無線ネットワーク: 802.11b/g (2.4GHz)統合インタフェース、802.11s (メッシュ)ネットワークをサポート; ダイバシティ受信をサポートした2つの調整可能な回転式アンテナ、CPUの電源が切れていてもメッシュの運用は可能
- Marvell Libertas無線チップセット, 88W8388コントローラと 88W8015ラジオ
状態インジケータ: 電源、電池、WiFi(2)、マイク使用中、カメラ使用中、蓋が開いていても閉じていても確認可能

外部コネクタ

DC電源: 6mm (1.65mm センターピン)コネクタ; 11から18Vの入力で使用可能、–32から40Vの入力に耐える、電力の制限は15Wまで
ヘッドホン出力: 標準 3.5mm 3ピンスイッチ付きステレオ音声ジャック
マイク入力: 標準 3.5mm 2ピンスイッチ付きモノラルマイクジャック、2V DC バイアスを選択可能、センサ入力モードを選択可能(DCあるいはAC結合)
USB: 3つのタイプA USB 2.0コネクタ、1Aまでの電源供給(合計)
フラッシュ拡張: SDカードスロット

コネクタ

バッテリ

パックタイプ: 2または4セル LiFePO4、あるいは5セル NiMH、およそ6V 直列接続(変更予定)
容量: 16.5 WH (NIMH), 22 WH (LiFeP);
完全密閉「ハード」ケース、取り外し可能
パックに統合された電子部品:
- 識別;
- 充電と容量モニタチップ(Maxim DS2756 データシート);
- バッテリ保護のためのカットオフスイッチ付きの温度と過電流センサ
最大2,000回の充放電サイクル(新品時の50%容量)
パワーマネジメントが重要となる

バッテリ

BIOS/ローダ

Open Firmware (ハードウェアの初期化と高速リジュームを含む).

環境仕様

温度: UL認証は2007年第3四半期に45Cを予定しています。50C認証は2008年中頃まで保留中です。
湿度: UL認証は、閉じたときにIP42(たぶんそれ以上)を予定しています。子供が登下校する際、風雨や埃を恐れる必要が無いように装置は十分密閉されなければなりません。
最大高度: –15mから3048m (14.7から10.1 PSIA) (動作時)、–15mから12192m (14.7から4.4 PSIA) (停止時)
衝撃 125g、2ms、半周期 (操作中) 200g、2ms、半周期 (停止時)
ランダム振動: 0.75g ゼロ・トゥ・ピーク、10Hz to 500Hz、0.25 oct/min 掃引速度 (操作時)、1.5g ゼロ・トゥ・ピーク、10Hzから500Hz、0.5 oct/min 掃引速度 (停止時)
2mm プラチック厚板 (ほとんどのシステムは1.3mm厚)

規制要求

通常のUSとEU EMI/EMC(電磁障害と電磁適合性)要求を満足します。
このノートPCはIEC 60950-1、EN 60950-1、CSA/UL 60950-1 仕様に適合します。また、UL 1310とUL 498にも適合します。子供たちがこのノートPCを安全に使えることを保障するために、ASTM F 963に合格しています。
外部電源アダプタはIEC、EN、CSA/UL 60950-1に適合します。
取り外し可能なバッテリパックはIEC、EN、CSA/UL 60950-1、UL 2054に適合します。
RoHS(電気・電子機器に含まれる特定有害物質の使用制限に関する欧州議会及び理事会指令)適合。

For Developers

サポートするハードウェア

シリアルアダプタ (開発者用)

シリアルアダプタ

3.3V TTLからRS-232/USBへのアダプタ

Laptop Development Schedule

Mass Production Systems

Started November 2007.

Preproduction Test Systems (CTest-2, or C2)

Pre-build of 50 motherboards in October to test last minute changes.

Preproduction Test Systems (CTest-1, or C1)

This build is of 300 laptops produced as a test of the manufacturing process on the main production line, and should happen starting August 6th, 2007. Slip resistance rubber feet will be added as will more easily replaceable bunny ears (just two screws per ear after bezel removal). The hinge stop that appeared in B3/B4 will be eliminated or reduced (this is used to the stop the display at perpendicular before it tilts back further). Bean texture will be applied to the exterior white parts and "satin" texture to the the rest of the laptop plastic parts. A C1 laptop will be nearly identical to the production unit ...

Preproduction Test Systems have a label under the battery that says C-TEST-SAMPLE.

This build is of 300 laptops produced as a test of the manufacturing process on the main production line, and should happen starting August 6th, 2007. Slip resistance rubber feet will be added as will more easily replaceable bunny ears (just two screws per ear after bezel removal). The hinge stop that appeared in B3/B4 will be eliminated or reduced (this is used to the stop the display at perpendicular before it tilts back further). Bean texture will be applied to the exterior white parts and "satin" texture to the the rest of the laptop plastic parts. A C1 laptop will be nearly identical to the production unit ...

Preproduction Test Systems have a label under the battery that says C-TEST-SAMPLE.

Beta Test 4 Systems (BTest-4, or B4)

This build which ran from June 20-25, 2007, was the final chance to fix hardware and mechanical problems that were detected in the Beta Test 3 build of the XO. 2000 units were built.

Texture was added to the upper handle bar, the hinge tilt was increased by 7 degrees, the hinge "squeak" was eliminated, the rabbit ears click in place when put in the "down" position", the slight camera vignetting seen in B3 was eliminated, and minor modifications were made to the motherboard.

Beta Test 4 Systems have a label under the battery that says B4-TEST-SAMPLE.

Beta Test 4 Systems work with current software releases. They may experience hardware problems with extensive suspend/resume or low battery.

This build which ran from June 20-25, 2007, was the final chance to fix hardware and mechanical problems that were detected in the Beta Test 3 build of the XO. 2000 units were built.

Texture was added to the upper handle bar, the hinge tilt was increased by 7 degrees, the hinge "squeak" was eliminated, the rabbit ears click in place when put in the "down" position", the slight camera vignetting seen in B3 was eliminated, and minor modifications were made to the motherboard.

Beta Test 4 Systems have a label under the battery that says B4-TEST-SAMPLE.

Beta Test 4 Systems work with current software releases. They may experience hardware problems with extensive suspend/resume or low battery.

Beta Test 3 Systems (BTest-3, or B3)

This build—May 2007—is the first to use an updated design for the laptop. It was the first build providing the processor and memory capabilities of the production version. Noticeable improvements over BTest-2 include:

A faster, lower power processor: the Geode LX-700
- 64 KB I/64 KB D of L1 Cache, 128 KB of L2 Cache (vs. 32 KB of L1 cache)
- Faster processor and memory clock (433/333 vs. 366/266)
- 1.5 W typ. vs. 3 W typ.
- Much better graphics processor, including support for rotated blits and depth conversion
More memory: 256 MB of SDRAM (vs. 128 MB)
extra screws
insert molded rubber ears for better robustness
a smaller battery cavity to improve robustness, make the bumper lines cleared
10-20V input voltage tolerance.
new bumper tooling to allow the bumpers to be made of polycarbonate (as opposed to PC/ABS) with 3mm thickness and ribbing to 1.8mm (was 2mm and 1.2mm respectively)
colored XO on the back cover (400 different color combinations so kids can distinguish their laptops from each other
A keyboard that is much better to type on
Finally a touchpad that is much easier to use and much more responsive
a steel plate inside the entire keyboard base to reduce the feeling of flimsiness
a flipped USB connector so each side has the same way up for a USB key or device
A new hinge design allows greater tilt of the screen
An improved case design (addressing strength)

A very small number of BTest-3 units (around a hundred) were built, all were used for hardware and low level software development.

Beta Test 3 Systems have a label under the battery that says B3-TEST-SAMPLE.

Beta Test 3 Systems work with current software releases. They may experience hardware problems with extensive suspend/resume or low battery.

This build—May 2007—is the first to use an updated design for the laptop. It was the first build providing the processor and memory capabilities of the production version. Noticeable improvements over BTest-2 include:

A faster, lower power processor: the Geode LX-700
- 64 KB I/64 KB D of L1 Cache, 128 KB of L2 Cache (vs. 32 KB of L1 cache)
- Faster processor and memory clock (433/333 vs. 366/266)
- 1.5 W typ. vs. 3 W typ.
- Much better graphics processor, including support for rotated blits and depth conversion
More memory: 256 MB of SDRAM (vs. 128 MB)
extra screws
insert molded rubber ears for better robustness
a smaller battery cavity to improve robustness, make the bumper lines cleared
10-20V input voltage tolerance.
new bumper tooling to allow the bumpers to be made of polycarbonate (as opposed to PC/ABS) with 3mm thickness and ribbing to 1.8mm (was 2mm and 1.2mm respectively)
colored XO on the back cover (400 different color combinations so kids can distinguish their laptops from each other
A keyboard that is much better to type on
Finally a touchpad that is much easier to use and much more responsive
a steel plate inside the entire keyboard base to reduce the feeling of flimsiness
a flipped USB connector so each side has the same way up for a USB key or device
A new hinge design allows greater tilt of the screen
An improved case design (addressing strength)

A very small number of BTest-3 units (around a hundred) were built, all were used for hardware and low level software development.

Beta Test 3 Systems have a label under the battery that says B3-TEST-SAMPLE.

Beta Test 3 Systems work with current software releases. They may experience hardware problems with extensive suspend/resume or low battery.

Beta Test 2 Systems (BTest-2, or B2)

Approximately 2500 systems were built by Quanta and distributed. These are fully functional machines with CaFE ASICs, and reflect some, but not all of the learning and improvements from testing of BTest-1. Much more information about the BTest-2 systems can be found in the BTest-2 Release Notes. Some of the details of the hardware design are to support the OLPC Human Interface Guidelines.

BTest-2 systems are almost identical visually with BTest-1. BTest-3 will have more substantial physical differences. An easy way to tell the difference between BTest-1 and BTest-2 is that BTest-1 keyboards have white lettering, and BTest-2 has black lettering.

There are two flavors of B2. Beta Test 2-1 (B2-1) systems, which only have 128 MB of memory, have a label under the battery that says B2-TEST-SAMPLE and a label that says B2-#, where # is one to 16. Beta Test 2-2 (B2-2) systems, which have 256MB of memory, have a label under the battery that says B2-7-ext.

Beta Test 2-1 laptops do not perform well with current software releases.

Approximately 2500 systems were built by Quanta and distributed. These are fully functional machines with CaFE ASICs, and reflect some, but not all of the learning and improvements from testing of BTest-1. Much more information about the BTest-2 systems can be found in the BTest-2 Release Notes. Some of the details of the hardware design are to support the OLPC Human Interface Guidelines.

BTest-2 systems are almost identical visually with BTest-1. BTest-3 will have more substantial physical differences. An easy way to tell the difference between BTest-1 and BTest-2 is that BTest-1 keyboards have white lettering, and BTest-2 has black lettering.

There are two flavors of B2. Beta Test 2-1 (B2-1) systems, which only have 128 MB of memory, have a label under the battery that says B2-TEST-SAMPLE and a label that says B2-#, where # is one to 16. Beta Test 2-2 (B2-2) systems, which have 256MB of memory, have a label under the battery that says B2-7-ext.

Beta Test 2-1 laptops do not perform well with current software releases.

Beta Test 1 Systems (BTest-1)

Approximately 875 systems were built by Quanta in November 2006 and distributed. The BTest-1 systems were fully functional machines (compared to a BTest-2 system), but built before the custom integrated circuits were available. An Altera FPGA is used in place of the CaFE ASIC which is present in later builds, for NAND flash, camera, and SD interfaces. This FPGA has lower performance and consumes much more power than the CaFE ASIC does.Much more information about the BTest-1 systems can be found in the BTest-1 Release Notes. (Beta Test 1 Systems have a label under the battery that says B1-TEST-SAMPLE.)

BTest-1 and pre-BTest systems are no longer supported by our current software releases.

Approximately 875 systems were built by Quanta in November 2006 and distributed. The BTest-1 systems were fully functional machines (compared to a BTest-2 system), but built before the custom integrated circuits were available. An Altera FPGA is used in place of the CaFE ASIC which is present in later builds, for NAND flash, camera, and SD interfaces. This FPGA has lower performance and consumes much more power than the CaFE ASIC does.Much more information about the BTest-1 systems can be found in the BTest-1 Release Notes. (Beta Test 1 Systems have a label under the battery that says B1-TEST-SAMPLE.)

BTest-1 and pre-BTest systems are no longer supported by our current software releases.

Pre-BTest boards

A small number of pre-BTest boards were built in preparation for building complete BTest systems. Developer information about B-test boards are here.

Alpha Test Prototype Electronics

Power up of the first OLPC electronics prototype boards occurred April 15, 2006. Power and ground testing continued over the weekend, and formal debug and BIOS bring up started Monday, April 17, 2006 at Quanta Computer's labs in Taipei, Taiwan. By Wednesday, April 19, Linux was booting on the first generation prototypes.

Photographs:

ATest systems are no longer supported by our current software releases.

Power up of the first OLPC electronics prototype boards occurred April 15, 2006. Power and ground testing continued over the weekend, and formal debug and BIOS bring up started Monday, April 17, 2006 at Quanta Computer's labs in Taipei, Taiwan. By Wednesday, April 19, Linux was booting on the first generation prototypes.

Photographs:

ATest systems are no longer supported by our current software releases.

Software on the development systems

C2:

Everything works with the exception of a few items in Trac and any yet to be discovered bugs;

C1/B4/B3:

There may be occasional crashes (possibly made worse by suspend/resume) when the battery is running low. Above 25% of capacity, or plugged into a power adapter, you should be OK ([1]);
There may be times when the WLAN (USB) hangs (possibly made worse by suspend/resume) ([2], [3]);
Power cycling the DCON is liable to crash the laptop. This power cycling will occasionally happen in response to a DCON bug triggered by suspend/resume ([4]);
Rare crashes may be caused by other sources during suspend/resume (Camera, SD card, clock settling time), some units (especially B3s) may be more sensitive than others ([5]);

B2:

All of the problems listed for C1/B4/B3 are present;
The keyboard/touchpad may not be used to wakeup from a suspend/resume ([6]);
The DCON will glitch coming out of suspend/resume ([7]);
The camera will not work properly;

A:

A Test is no longer supported. Do not load D- or C-series firmware on A Test machines.

C2:

Everything works with the exception of a few items in Trac and any yet to be discovered bugs;

C1/B4/B3:

There may be occasional crashes (possibly made worse by suspend/resume) when the battery is running low. Above 25% of capacity, or plugged into a power adapter, you should be OK ([8]);
There may be times when the WLAN (USB) hangs (possibly made worse by suspend/resume) ([9], [10]);
Power cycling the DCON is liable to crash the laptop. This power cycling will occasionally happen in response to a DCON bug triggered by suspend/resume ([11]);
Rare crashes may be caused by other sources during suspend/resume (Camera, SD card, clock settling time), some units (especially B3s) may be more sensitive than others ([12]);

B2:

All of the problems listed for C1/B4/B3 are present;
The keyboard/touchpad may not be used to wakeup from a suspend/resume ([13]);
The DCON will glitch coming out of suspend/resume ([14]);
The camera will not work properly;

A:

A Test is no longer supported. Do not load D- or C-series firmware on A Test machines.

School Server Hardware

While the laptop is rightfully at the center of OLPC, a valuable peripheral is the school server. OLPC will be building and distributing school servers along with the laptops, to extend the storage and computation provided by each laptop, as well as providing a local library and a mesh portal to the Internet.

Unlike the laptop, the school server is more of a collection of services than a hardware platform. In a manner identical to the laptop, OLPC will collaborate with manufacturing partners to provide a cost-efficient hardware platform for running the recommended software. Unlike the laptop, the manufacturing collaboration will not be exclusive. Individual countries will be free (even encouraged) to design and manufacture their own school servers running derivatives of the OLPC school server software.

While the laptop is rightfully at the center of OLPC, a valuable peripheral is the school server. OLPC will be building and distributing school servers along with the laptops, to extend the storage and computation provided by each laptop, as well as providing a local library and a mesh portal to the Internet.

Unlike the laptop, the school server is more of a collection of services than a hardware platform. In a manner identical to the laptop, OLPC will collaborate with manufacturing partners to provide a cost-efficient hardware platform for running the recommended software. Unlike the laptop, the manufacturing collaboration will not be exclusive. Individual countries will be free (even encouraged) to design and manufacture their own school servers running derivatives of the OLPC school server software.

XS

This will be the school server designed by OLPC. It is mostly designed, but currently on hold as we reconsider manufacturers, and should reach early production volumes in spring 2008. See the specification.

XSX

XSX limited-production prototype school server. The actual XS school servers won't look anything like this.

This is a prototype school server, built for early school trials in country. It will be integrated from off-the-shelf components, and will be overpowered compared to a production school server in order to simplify early demands for system software. See the specification and the implementation.

@@ Line 210: / Line 210: @@
 {{Developers}}
+===サポートするハードウェア===
-===Support Hardware===
+''シリアルアダプタ (開発者用)''
-''Serial Adapter (for developers)''
-[[Image:serialadapter.jpg|thumb|Serial Adapter]]
+[[Image:serialadapter.jpg|thumb|シリアルアダプタ]]
-* [[Serial_adapters|3.3V TTL to RS-232/USB Adapter]]
+* [[Serial_adapters|3.3V TTLからRS-232/USBへのアダプタ]]
 {{ Translated text |
 ''Serial Adapter (for developers)''
-* [[Serial_adapters|3.3V TTL to RS-232/USB Adapter]]| display = block}} <!-- change to 'display = none' to hide english text -->
+* [[Serial_adapters|3.3V TTL to RS-232/USB Adapter]]| display = none}} <!-- change to 'display = none' to hide english text -->
 ==Laptop Development Schedule==

Hardware specification/lang-ja: Difference between revisions

Revision as of 15:10, 13 December 2007

Contents

ノートPC　ハードウェア

仕様