2009年 7月2日で掲載されている。
Android携帯「T-Mobile G1」を分解、ハードウエア設計に大きな特徴なし
http://www.eetimes.jp/content/2996著者は、Under the Hood: Android dreams, GooglePhone delivers
4月のアーティクルもちょっと古い気もしないでもないが、次の製品がその2ヶ月後に
出てくるというのも気の毒な話だし、主題は この Android ベースの Google フォンが
「真に革新的なものか、あるいは創造的な再利用品なのか」の検証であるということで
目をつぶるとするか・・・・・
しかし、それから3ヶ月も経って、しかも T-Mobile も、さらに日本の NTT docomo も
HTC Magic ベースの製品を出した後というタイミングは、やはりネタとして古すぎる だろう。
たしかに Dream と Magic、HTC社のWebでスペック表を見るだけだと 大した差がない
(単に QWERT キーボードの有無ぐらいにしか見えない)のだが。
あえてプログラマブルな半導体デバイスのネタを書くと、
HTC Dream には米国ザイリンクス社の CPLD製品 CoolRunner II (型番 XC2C128)が
使われている。
Magicのほうも、どこか分解記事をやってくれないかと心待ちにしているのだが・・・・。
日経エレクトロニクスはやらないだろうか。
実は 2009年6月25日付の中国のメディアで、HTC Magic に使われているCPLD について、
アルテラの MAX II (型番 EPM240Z)が主に GPIOの拡張として 使用されているという記事があった。
中国語ではさすがに読めないので Google 自動翻訳版で読んだ。
自動翻訳らしく、語順が違っているだろうと思われる箇所が数点あるが、 意味はだいたい伝わるだろう。
オリジナル記事(中国語) http://www.mcuol.com/News/152/32934.htm
Google 自動英訳結果はこちら。
いつかアクセスできなくなるかもしれないので、自動英訳の部分をこちらに 転載させて頂く。
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Android operating system will become the field of consumer electronics Windows it?
2009-06-25 嵌入式在线收藏 | 打印 2009-06-25
Consumer electronics solutions provider, today launched the era of Feiteng Android operating system, the MID-based solutions. The program can access the Internet through WiFi, built not only MSN, Firefox browser, Google maps and Office applications software, also supports the online video views. Android operating system to achieve a more extended application, and MID have PDA functions, including personal information management, calendar notes, tasks, arrangements, multimedia applications and web browser, such as. In addition, Android open-source characteristics of the OEM manufacturers to bring greater cost advantage. Since 2008, the first use of the Android operating system launched G1 smartphone, its mobile phones and other consumer products in the application will be heard. Earlier this year, held in Barcelona in 2009 Mobile World Congress, Taiwan manufacturer HTC (HTC) and mobile operator Vodafone issued a second joint use of the Android smartphone operating system - HTC Magic (G2) .
HTC Magic, not only has a stylish appearance, but also features a built-in many professional players, as well as a range of Google services suite, including Gmail, Google Search, YouTube and Google Maps are to facilitate the enhancement of life and an indispensable tool.
HTC Magic used HVGA high-resolution 3.2 inches touch screen, 360-degree Trackball trackball, 320-megapixel camera, also features GPS positioning. , And G1 use Qualcomm MSM7201A processors, HTC Magic in MSM7200A used more robust video coding, H.264 video recording in support there is a great advantage.
HTC Magic's appearance seems more mellow than the G1 smooth, and has changed the full-keyboard slider design - the iPhone has been seen as a landmark and the difference between Gphone.
Surprise we found that in the HTC Magic achieve GPIO expansion function 240 is a logical unit (LE) of the CPLD chip. Original CPLD can also be used in power sensitive mobile phone designs. HTC Magic handset is used within Altera Corporation only 29μA of quiescent current MAX IIZ CPLD EPM240ZM100C8N.
In addition, the CPLD can also be used to achieve the functions of ASSP. For example, if the ASSP to achieve full keyboard GPIO expansion can choose to use Maxim's MAX7349 and MAX7359, and ADI's recently launched, such as ADP5588. In order to meet the needs of the application, the keyboard controller chip is getting higher and higher integration to ADP5588 as an example, it not only integrates to trigger jitter and interrupt functions, but also can detect ambient light brightness and the processor can use this information to ensure that the keyboard efficient backlight control, thereby reducing overall power consumption. And compared to ASSP program, CPLD more flexible and can be limited in size to achieve more. Application to the above example, CPLD can only 6mm × 6mm footprint area to achieve GPIO expansion-level conversion and precise PWM LED backlight control, which in terms of cost, power consumption and size better than the ASSP.
In addition to LED backlighting control, GPIO expansion and conversion level, the engineers could also consider the flexibility of the use of CPLD, the size of a limited integration capabilities to achieve more.
With the power, size and cost reduction, CPLD products in portable applications has become increasingly wide. Olympic Games in Beijing for identification, logistics and public transport, such as micro-P1200 portable handsets consumption on MAX IIZ used to manage its multiple interfaces, including the RFID reader, IRDA sensor, Bluetooth interface and LED control port and so on. In portable applications, and full-custom ASIC comparison, CPLD shorter development cycle; and ASSP compared to more flexibility in the use of CPLD design, and do not easily copied, a higher security.
In addition to HTC Magic, the first Android smartphone Samsung i7500 mobile phone has also been widespread concern, a growing number of companies has accelerated the pace of research and development of Android phones. It is reported that in 2009 there will be nearly 20 Android phone available.
At present, Android system has been received from the telecom operators, handset manufacturers and software developers support. Market research firm Strategy Analytics Director Neil? Mawston said: "The mandate of relatively inexpensive models, quasi-open-source framework, as well as the Google cloud computing services company for the support, these factors have contributed to such as HTC, Motorola, T-Mobile and companies such as Vodafone to support Android. "based on data from Strategy Analytics, the global use of this Android smartphone operating system will increase the number of 9 times.
Android operating system provides a common inter-equipment of the structure, so that a large number of software application developers to write applications for the Android software. In the mobile phone market after the initial success, Android has been to other consumer electronics applications tentacles stretched out, in addition to the above-mentioned MID, have set up a Family Media Player (HMP), set-top boxes, television and Internet telephony and so on.
Semico Research, said Rich Wawrzyniak, senior analyst: "With Android platform can quickly and easily to mobile phone equipment outside of innovative applications and user interface, which the consumer is a very attractive proposal."
In order to maintain their consumer electronics applications in the dominant position in many of the Android operating system manufacturers have demonstrated a positive attitude. For example, MIPS Technology, Inc. this month introduced its industry-standard MIPS architecture Android platform, also announced that it would open within 60 days after the MIPS source code optimization.
As more supporters to join, Android operating system will undoubtedly become increasingly sound to break through 3D graphics in its current limitations, and to overcome its user interface and application design challenges.
Android can become a consumer regardless of the field of Windows, we all hope that it can quickly develop into a mature open-source platform for business to help more consumer devices connected to the Internet, provide a wide range of applications to bring a richer user experience.
本文来源:今日电子 作者:崔晓楠 This article Source: Today, e-Author:崔晓楠
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