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<div id="projectbrief">This document shows Ameba SDK 4.0 APIs</div>
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<div class="title">i2c_api.h File Reference</div> </div>
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<div class="contents">
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<p>This file provides following mbed I2C API.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include "device.h"</code><br />
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</div><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td colspan="2"><div class="groupHeader">AmebaZ Only</div></td></tr>
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<tr class="memitem:ga8b9d3f27dde8fd4a7c2699a442036469"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga8b9d3f27dde8fd4a7c2699a442036469">i2c_repeatread</a> (i2c_t *obj, int address, u8 *pWriteBuf, int Writelen, u8 *pReadBuf, int Readlen)</td></tr>
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<tr class="memdesc:ga8b9d3f27dde8fd4a7c2699a442036469"><td class="mdescLeft"> </td><td class="mdescRight">I2C master send data and read data in poll mode. <a href="group__i2c.html#ga8b9d3f27dde8fd4a7c2699a442036469">More...</a><br /></td></tr>
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<tr class="separator:ga8b9d3f27dde8fd4a7c2699a442036469"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
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Ameba Common</h2></td></tr>
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<tr class="memitem:ga99fb83031ce9923c84392b4e92f956b5"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga99fb83031ce9923c84392b4e92f956b5"></a>enum  </td><td class="memItemRight" valign="bottom">{ <b>I2C_ERROR_NO_SLAVE</b> = -1,
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<b>I2C_ERROR_BUS_BUSY</b> = -2
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}</td></tr>
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<tr class="separator:ga99fb83031ce9923c84392b4e92f956b5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gab81ea18d9e45cf0f66fd70fa327567f4"><td class="memItemLeft" align="right" valign="top">
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typedef struct i2c_s </td><td class="memItemRight" valign="bottom"><b>i2c_t</b></td></tr>
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<tr class="separator:gab81ea18d9e45cf0f66fd70fa327567f4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga1b0ae695823965bbc29453fd2f4027ba"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga1b0ae695823965bbc29453fd2f4027ba">i2c_init</a> (i2c_t *obj, PinName sda, PinName scl)</td></tr>
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<tr class="memdesc:ga1b0ae695823965bbc29453fd2f4027ba"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the I2C device, include clock/function/I2C registers. <a href="group__i2c.html#ga1b0ae695823965bbc29453fd2f4027ba">More...</a><br /></td></tr>
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<tr class="separator:ga1b0ae695823965bbc29453fd2f4027ba"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga911a872027faf4dbed3dc7900af2ae63"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga911a872027faf4dbed3dc7900af2ae63">i2c_frequency</a> (i2c_t *obj, int hz)</td></tr>
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<tr class="memdesc:ga911a872027faf4dbed3dc7900af2ae63"><td class="mdescLeft"> </td><td class="mdescRight">Set i2c frequency. <a href="group__i2c.html#ga911a872027faf4dbed3dc7900af2ae63">More...</a><br /></td></tr>
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<tr class="separator:ga911a872027faf4dbed3dc7900af2ae63"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga633ef0b7903f8d8a02e39bc92e5e1cd4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga633ef0b7903f8d8a02e39bc92e5e1cd4">i2c_start</a> (i2c_t *obj)</td></tr>
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<tr class="memdesc:ga633ef0b7903f8d8a02e39bc92e5e1cd4"><td class="mdescLeft"> </td><td class="mdescRight">Start i2c device. <a href="group__i2c.html#ga633ef0b7903f8d8a02e39bc92e5e1cd4">More...</a><br /></td></tr>
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<tr class="separator:ga633ef0b7903f8d8a02e39bc92e5e1cd4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga884e7fb02c8c405f940f5733f2396e38"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga884e7fb02c8c405f940f5733f2396e38">i2c_stop</a> (i2c_t *obj)</td></tr>
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<tr class="memdesc:ga884e7fb02c8c405f940f5733f2396e38"><td class="mdescLeft"> </td><td class="mdescRight">Stop i2c device. <a href="group__i2c.html#ga884e7fb02c8c405f940f5733f2396e38">More...</a><br /></td></tr>
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<tr class="separator:ga884e7fb02c8c405f940f5733f2396e38"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga8c49d3c4d4f9bf189b91ca582a5e0360"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga8c49d3c4d4f9bf189b91ca582a5e0360">i2c_reset</a> (i2c_t *obj)</td></tr>
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<tr class="memdesc:ga8c49d3c4d4f9bf189b91ca582a5e0360"><td class="mdescLeft"> </td><td class="mdescRight">Deinitializes the I2C device. <a href="group__i2c.html#ga8c49d3c4d4f9bf189b91ca582a5e0360">More...</a><br /></td></tr>
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<tr class="separator:ga8c49d3c4d4f9bf189b91ca582a5e0360"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gab785445664c6d96cd87b3b4b9b3ec190"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#gab785445664c6d96cd87b3b4b9b3ec190">i2c_byte_read</a> (i2c_t *obj, int last)</td></tr>
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<tr class="memdesc:gab785445664c6d96cd87b3b4b9b3ec190"><td class="mdescLeft"> </td><td class="mdescRight">I2C master receive single byte. <a href="group__i2c.html#gab785445664c6d96cd87b3b4b9b3ec190">More...</a><br /></td></tr>
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<tr class="separator:gab785445664c6d96cd87b3b4b9b3ec190"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga55292c588c9f79d92198139d46d3111e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga55292c588c9f79d92198139d46d3111e">i2c_byte_write</a> (i2c_t *obj, int data)</td></tr>
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<tr class="memdesc:ga55292c588c9f79d92198139d46d3111e"><td class="mdescLeft"> </td><td class="mdescRight">I2C master send single byte. <a href="group__i2c.html#ga55292c588c9f79d92198139d46d3111e">More...</a><br /></td></tr>
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<tr class="separator:ga55292c588c9f79d92198139d46d3111e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac1e9a41eb4c76bcc62c1d236b61f3898"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#gac1e9a41eb4c76bcc62c1d236b61f3898">i2c_slave_mode</a> (i2c_t *obj, int enable_slave)</td></tr>
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<tr class="memdesc:gac1e9a41eb4c76bcc62c1d236b61f3898"><td class="mdescLeft"> </td><td class="mdescRight">Set i2c device to be slave. <a href="group__i2c.html#gac1e9a41eb4c76bcc62c1d236b61f3898">More...</a><br /></td></tr>
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<tr class="separator:gac1e9a41eb4c76bcc62c1d236b61f3898"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga4cb20c34467f6bc7f972e1bf6995c8d9"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga4cb20c34467f6bc7f972e1bf6995c8d9">i2c_slave_receive</a> (i2c_t *obj)</td></tr>
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<tr class="memdesc:ga4cb20c34467f6bc7f972e1bf6995c8d9"><td class="mdescLeft"> </td><td class="mdescRight">Get i2c slave state. <a href="group__i2c.html#ga4cb20c34467f6bc7f972e1bf6995c8d9">More...</a><br /></td></tr>
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<tr class="separator:ga4cb20c34467f6bc7f972e1bf6995c8d9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga0542eb3761a36e3682c6a09a15756105"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga0542eb3761a36e3682c6a09a15756105">i2c_slave_address</a> (i2c_t *obj, int idx, uint32_t address, uint32_t mask)</td></tr>
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<tr class="memdesc:ga0542eb3761a36e3682c6a09a15756105"><td class="mdescLeft"> </td><td class="mdescRight">Set i2c slave address. <a href="group__i2c.html#ga0542eb3761a36e3682c6a09a15756105">More...</a><br /></td></tr>
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<tr class="separator:ga0542eb3761a36e3682c6a09a15756105"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga67f564fd103e3f2d56f6506239834ffe"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga67f564fd103e3f2d56f6506239834ffe">i2c_read</a> (i2c_t *obj, int address, char *data, int length, int stop)</td></tr>
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<tr class="memdesc:ga67f564fd103e3f2d56f6506239834ffe"><td class="mdescLeft"> </td><td class="mdescRight">I2C master read in poll mode. <a href="group__i2c.html#ga67f564fd103e3f2d56f6506239834ffe">More...</a><br /></td></tr>
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<tr class="separator:ga67f564fd103e3f2d56f6506239834ffe"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga62c619e5640f444c914839699a3cd0a4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga62c619e5640f444c914839699a3cd0a4">i2c_write</a> (i2c_t *obj, int address, const char *data, int length, int stop)</td></tr>
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<tr class="memdesc:ga62c619e5640f444c914839699a3cd0a4"><td class="mdescLeft"> </td><td class="mdescRight">I2C master write in poll mode. <a href="group__i2c.html#ga62c619e5640f444c914839699a3cd0a4">More...</a><br /></td></tr>
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<tr class="separator:ga62c619e5640f444c914839699a3cd0a4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga5b56b4f4a3fbe0e1e64cd482db1de7a4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga5b56b4f4a3fbe0e1e64cd482db1de7a4">i2c_slave_read</a> (i2c_t *obj, char *data, int length)</td></tr>
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<tr class="memdesc:ga5b56b4f4a3fbe0e1e64cd482db1de7a4"><td class="mdescLeft"> </td><td class="mdescRight">I2C slave read in poll mode. <a href="group__i2c.html#ga5b56b4f4a3fbe0e1e64cd482db1de7a4">More...</a><br /></td></tr>
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<tr class="separator:ga5b56b4f4a3fbe0e1e64cd482db1de7a4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga4fe28a2b1e9c69eb67c085e5e6005d3d"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga4fe28a2b1e9c69eb67c085e5e6005d3d">i2c_slave_write</a> (i2c_t *obj, const char *data, int length)</td></tr>
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<tr class="memdesc:ga4fe28a2b1e9c69eb67c085e5e6005d3d"><td class="mdescLeft"> </td><td class="mdescRight">I2C slave write in poll mode. <a href="group__i2c.html#ga4fe28a2b1e9c69eb67c085e5e6005d3d">More...</a><br /></td></tr>
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<tr class="separator:ga4fe28a2b1e9c69eb67c085e5e6005d3d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga8f9894fec30c83809dd02929c9feff76"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#ga8f9894fec30c83809dd02929c9feff76">i2c_slave_set_for_rd_req</a> (i2c_t *obj, int set)</td></tr>
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<tr class="memdesc:ga8f9894fec30c83809dd02929c9feff76"><td class="mdescLeft"> </td><td class="mdescRight">Set/clear i2c slave RD_REQ interrupt mask. <a href="group__i2c.html#ga8f9894fec30c83809dd02929c9feff76">More...</a><br /></td></tr>
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<tr class="separator:ga8f9894fec30c83809dd02929c9feff76"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gab6f24da9a64df1851fa747111365722a"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c.html#gab6f24da9a64df1851fa747111365722a">i2c_slave_set_for_data_nak</a> (i2c_t *obj, int set_nak)</td></tr>
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<tr class="memdesc:gab6f24da9a64df1851fa747111365722a"><td class="mdescLeft"> </td><td class="mdescRight">Set/clear i2c slave NAK or ACK data part in transfer. <a href="group__i2c.html#gab6f24da9a64df1851fa747111365722a">More...</a><br /></td></tr>
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<tr class="separator:gab6f24da9a64df1851fa747111365722a"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>This file provides following mbed I2C API. </p>
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<p>mbed Microcontroller Library</p>
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<dl class="section author"><dt>Author</dt><dd></dd></dl>
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<dl class="section version"><dt>Version</dt><dd>V1.0.0 </dd></dl>
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<dl class="section attention"><dt>Attention</dt><dd></dd></dl>
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<p>Copyright (c) 2006-2013 ARM Limited</p>
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