James Watanabe
Forked from Jose R. Padron and Aaron Berk's library, customized for my specific application using 9DoF-Stick by Sparkfun.
Fork of
HMC5843
by 
Jose R Padron
HMC5843 is triple axis, digital interface compass (geomagnetic sensor).
This library is forked from Jose R. Padron and Aaron Berk's work.
This library is for specific application using 9DoF-Stick.
Datasheet:
http://www.sparkfun.com/datasheets/Sensors/Magneto/HMC5843.pdf
HMC5843 は3軸のデジタルインターフェースを備えたコンパス（地磁気センサ）です。
このライブラリは 9DoF-Stick を使用した特定の企画のために保守しています。
mbed IDEが日本語をサポートするまでは英語でコメントを書いていきますが、サポートした後もきっと英語で書いていくでしょう。
History
Added a new constructor to accept an external I2C interface object.
2012-09-29, by gltest26 [Sat, 29 Sep 2012 14:18:48 +0000] rev 6
Added a new constructor to accept an external I2C interface object.
Collected common codes into a function getWord() to reduce duplicate codes.; Also made byte ordering and sign extending portable.
2012-09-12, by gltest26 [Wed, 12 Sep 2012 22:53:13 +0000] rev 5
Collected common codes into a function getWord() to reduce duplicate codes.; Also made byte ordering and sign extending portable.
Changed internal i2c_ object from a pointer to embedded object.; In this way you don't need to manage heap memory manually and can avoid overheads of memory management.
2012-09-12, by gltest26 [Wed, 12 Sep 2012 15:54:13 +0000] rev 4
Changed internal i2c_ object from a pointer to embedded object.; In this way you don't need to manage heap memory manually and can avoid overheads of memory management.
Fixed a bug getData() have returned incorrect negative values.
2012-09-09, by gltest26 [Sun, 09 Sep 2012 17:26:31 +0000] rev 3
Fixed a bug getData() have returned incorrect negative values.
Add functions to get Mx, My and Mz.
2010-11-09, by elrafapadron [Tue, 09 Nov 2010 23:18:46 +0000] rev 2
Add functions to get Mx, My and Mz.
Correct function declaration; readData function wasn\t visible
removed comments
2010-10-23, by elrafapadron [Sat, 23 Oct 2010 23:39:03 +0000] rev 1
removed comments