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/**

\page PeripheralExamples Peripheral Hardware Examples

\section SDCard Controlling SD Cards

The 'Secure Digital' or 'SD Card' mass storage standard, while fundamentally a proprietary standard,
and certainly nowhere near as open as say CompactFlash, has nonetheless become common in DIY and
open-source hardware, providing flash memory storage (as of 2010) in the small numbers of gigabytes
for perhaps a few dollars per gigabyte.  As of 0.9.17, the SFB core software has had support for
performing raw disk operations -- no file system, just reading and writing blocks -- on SD cards.

 - \subpage sdcard1.cpp "Detect an SD card and report its size"

 - \subpage sdcard2.cpp "Benchmark SD card reading and writing"

 - \subpage sdcard3.cpp "Buffered I/O to SD card via packets"

\section I2C Controlling I2C devices

The 'Inter-Integrated Circuit' ('I2C') bus, developed by Phillips, is a widely-used standard for
slow-to-moderate speed device communication.  As of 0.9.20, the SFB core software has had support,
in some ways limited, but often usable, for communicating with I2C devices.  Limitations include
that the IXM can only be an 'I2C master' even though the hardware is capable of being a slave, and
only certain kinds of I2C bus transactions are supported.  If there is enough interest, it could be
possible to expose lower-level I2C functions, making the code more general, but so far this codebase
leans somewhat towards simplicity over flexibility.

This code is based upon code written by Sam Bayless, modified lightly, and extended slightly, for
inclusion in the SFB core.

NOTE: ONLY A FEW I2C DEVICES HAVE BEEN TESTED WITH THIS CODE SO FAR!  YOUR MILEAGE MAY VARY!

 - \subpage i2cDAC.cpp "Talk to an I2C DAC"

 - \subpage i2cDACFast.cpp "Talk to an I2C DAC, faster"

 - \subpage i2cEeprom.cpp "Talk to an I2C EEPROM"

*/
