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Added by Justin Scheiner over 15 years ago

Recompiled documentation with additional documentation for SPI and encoders.

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<h1>i2c.c File Reference</h1>Implemenation of I2C communications protocol. <a href="#_details">More...</a>
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<code>#include &lt;avr/interrupt.h&gt;</code><br>
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Uses the status codes from the I2C register to handle the events needed to advance in I2C stages. For instance, you will get a bit for receiving a start ack, then a address ack, then a data ack, etc. The events are handled in each switch case. The status codes are defined by avr-gcc in /util/twi.h but are the same codes as the Atmel documentation.<p>
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Bytes are sent by popping off the ring buffer. It also will keep track of what modes the send is in.<p>
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Errors are handled here as well.
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<p>References <a class="el" href="ring__buffer_8h-source.html#l00078">RING_BUFFER_CLEAR</a>, <a class="el" href="ring__buffer_8h-source.html#l00088">RING_BUFFER_EMPTY</a>, <a class="el" href="ring__buffer_8h-source.html#l00136">RING_BUFFER_PEEK</a>, and <a class="el" href="ring__buffer_8h-source.html#l00122">RING_BUFFER_REMOVE</a>.</p>
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