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4 years ago
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<h1><avr/eeprom.h>: EEPROM handling</h1><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><h2>Defines</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga79a42ec6c6c8bbbe6e34ed57a52aac59">EEMEM</a> __attribute__((section(".eeprom")))</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga7ccd65b76bb9ed5ee03855779bae28de">eeprom_is_ready</a>()</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga44c64ebb425fcb34b8d4dc19c4079869">eeprom_busy_wait</a>() do {} while (!eeprom_is_ready())</td></tr>
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<tr><td colspan="2"><h2>Functions</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga2d4ee8b92a592c764785fb5e4af5662b">eeprom_read_byte</a> (const <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *__p) __ATTR_PURE__</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gabeef2e14398b47268f88462b3d7738dc">eeprom_read_word</a> (const <a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> *__p) __ATTR_PURE__</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga88df934c94c037b10ebeb337a6883a74">eeprom_read_dword</a> (const <a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> *__p) __ATTR_PURE__</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga88da5e9bf80b4acded6018314baab6cd">eeprom_read_float</a> (const float *__p) __ATTR_PURE__</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga0ebd0e867b6f4a03d053801d3508f8de">eeprom_read_block</a> (void *__dst, const void *__src, size_t __n)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga682e0b2ca0badd47e1e30e61617e1361">eeprom_write_byte</a> (<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *__p, <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga38e4426e45512adb5e33bf8eff20ab41">eeprom_write_word</a> (<a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> *__p, <a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga012c7fa61d9695b7f0f5187d2560e598">eeprom_write_dword</a> (<a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> *__p, <a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gac738db5e12a0369d332ca43563755095">eeprom_write_float</a> (float *__p, float __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gac5c2be42eb170be7a26fe8b7cce4bc4d">eeprom_write_block</a> (const void *__src, void *__dst, size_t __n)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga63aee2719099e8435e8584d4b3e51991">eeprom_update_byte</a> (<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *__p, <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga131cff4e1ae5fcdf5685cab524ea4553">eeprom_update_word</a> (<a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> *__p, <a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gaab79c4b2b5e8159d5f37d26d11d3f954">eeprom_update_dword</a> (<a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> *__p, <a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga106a2e703b12cad4d35380b1a69ac586">eeprom_update_float</a> (float *__p, float __value)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gaa42f9b445115c9bbbeca19dab6f7fba9">eeprom_update_block</a> (const void *__src, void *__dst, size_t __n)</td></tr>
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<tr><td colspan="2"><h2>IAR C compatibility defines</h2></td></tr>
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<tr><td colspan="2"><p><a class="anchor" id="amgrpbd4f214f8af72159c7bbc547dba16284"></a> </p>
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<br/><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gae63647a896a731935077dbeb0a1b52ef">_EEPUT</a>(addr, val) eeprom_write_byte ((<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr), (<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>)(val))</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gae436d1b201970ad3836f663982d81dbf">__EEPUT</a>(addr, val) eeprom_write_byte ((<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr), (<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>)(val))</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#ga98c859a256541fe119e47ac4fdfd1ebd">_EEGET</a>(var, addr) (var) = eeprom_read_byte ((const <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr))</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__avr__eeprom.html#gac76dc1465b220dfcdd9aa7300a5cfe6c">__EEGET</a>(var, addr) (var) = eeprom_read_byte ((const <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr))</td></tr>
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</table>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
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<div class="fragment"><pre class="fragment"><span class="preprocessor"> #include <avr/eeprom.h></span>
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</pre></div><p>This header file declares the interface to some simple library routines suitable for handling the data EEPROM contained in the AVR microcontrollers. The implementation uses a simple polled mode interface. Applications that require interrupt-controlled EEPROM access to ensure that no time will be wasted in spinloops will have to deploy their own implementation.</p>
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<dl class="user"><dt><b>Notes:</b></dt><dd></dd></dl>
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<ul>
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<li>In addition to the write functions there is a set of update ones. This functions read each byte first and skip the burning if the old value is the same with new. The scaning direction is from high address to low, to obtain quick return in common cases.</li>
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</ul>
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<ul>
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<li>All of the read/write functions first make sure the EEPROM is ready to be accessed. Since this may cause long delays if a write operation is still pending, time-critical applications should first poll the EEPROM e. g. using <a class="el" href="group__avr__eeprom.html#ga7ccd65b76bb9ed5ee03855779bae28de">eeprom_is_ready()</a> before attempting any actual I/O. But this functions are not wait until SELFPRGEN in SPMCSR becomes zero. Do this manually, if your softwate contains the Flash burning.</li>
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</ul>
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<ul>
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<li>As these functions modify IO registers, they are known to be non-reentrant. If any of these functions are used from both, standard and interrupt context, the applications must ensure proper protection (e.g. by disabling interrupts before accessing them).</li>
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</ul>
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<ul>
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<li>All write functions force erase_and_write programming mode.</li>
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</ul>
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<ul>
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<li>For Xmega the EEPROM start address is 0, like other architectures. The reading functions add the 0x2000 value to use EEPROM mapping into data space. </li>
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</ul>
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<hr/><h2>Define Documentation</h2>
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<a class="anchor" id="gac76dc1465b220dfcdd9aa7300a5cfe6c"></a><!-- doxytag: member="eeprom.h::__EEGET" ref="gac76dc1465b220dfcdd9aa7300a5cfe6c" args="(var, addr)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">#define __EEGET</td>
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<td>(</td>
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<td class="paramtype">var, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">addr </td>
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<td class="paramname"></td>
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<td> ) </td>
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<td> (var) = eeprom_read_byte ((const <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr))</td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Read a byte from EEPROM. Compatibility define for IAR C. </p>
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</div>
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</div>
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<a class="anchor" id="gae436d1b201970ad3836f663982d81dbf"></a><!-- doxytag: member="eeprom.h::__EEPUT" ref="gae436d1b201970ad3836f663982d81dbf" args="(addr, val)" -->
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<div class="memitem">
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<td class="memname">#define __EEPUT</td>
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<td>(</td>
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<td class="paramtype">addr, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">val </td>
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<td class="paramname"></td>
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<td> ) </td>
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<td> eeprom_write_byte ((<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr), (<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>)(val))</td>
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</table>
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</div>
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<div class="memdoc">
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<p>Write a byte to EEPROM. Compatibility define for IAR C. </p>
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</div>
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<a class="anchor" id="ga98c859a256541fe119e47ac4fdfd1ebd"></a><!-- doxytag: member="eeprom.h::_EEGET" ref="ga98c859a256541fe119e47ac4fdfd1ebd" args="(var, addr)" -->
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<td class="memname">#define _EEGET</td>
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<td>(</td>
|
||
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<td class="paramtype">var, </td>
|
||
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</tr>
|
||
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<tr>
|
||
|
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<td class="paramkey"></td>
|
||
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<td></td>
|
||
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<td class="paramtype">addr </td>
|
||
|
|
<td class="paramname"></td>
|
||
|
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<td> ) </td>
|
||
|
|
<td> (var) = eeprom_read_byte ((const <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr))</td>
|
||
|
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</tr>
|
||
|
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</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Read a byte from EEPROM. Compatibility define for IAR C. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
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<a class="anchor" id="gae63647a896a731935077dbeb0a1b52ef"></a><!-- doxytag: member="eeprom.h::_EEPUT" ref="gae63647a896a731935077dbeb0a1b52ef" args="(addr, val)" -->
|
||
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<div class="memitem">
|
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<div class="memproto">
|
||
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<table class="memname">
|
||
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<tr>
|
||
|
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<td class="memname">#define _EEPUT</td>
|
||
|
|
<td>(</td>
|
||
|
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<td class="paramtype">addr, </td>
|
||
|
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</tr>
|
||
|
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<tr>
|
||
|
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<td class="paramkey"></td>
|
||
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<td></td>
|
||
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<td class="paramtype">val </td>
|
||
|
|
<td class="paramname"></td>
|
||
|
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<td> ) </td>
|
||
|
|
<td> eeprom_write_byte ((<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(addr), (<a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>)(val))</td>
|
||
|
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</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Write a byte to EEPROM. Compatibility define for IAR C. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga79a42ec6c6c8bbbe6e34ed57a52aac59"></a><!-- doxytag: member="eeprom.h::EEMEM" ref="ga79a42ec6c6c8bbbe6e34ed57a52aac59" args="" -->
|
||
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<div class="memitem">
|
||
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<div class="memproto">
|
||
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<table class="memname">
|
||
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<tr>
|
||
|
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<td class="memname">#define EEMEM __attribute__((section(".eeprom")))</td>
|
||
|
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</tr>
|
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</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Attribute expression causing a variable to be allocated within the .eeprom section. </p>
|
||
|
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|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga44c64ebb425fcb34b8d4dc19c4079869"></a><!-- doxytag: member="eeprom.h::eeprom_busy_wait" ref="ga44c64ebb425fcb34b8d4dc19c4079869" args="()" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">#define eeprom_busy_wait</td>
|
||
|
|
<td>(</td>
|
||
|
|
</td>
|
||
|
|
<td class="paramname"></td>
|
||
|
|
<td> ) </td>
|
||
|
|
<td> do {} while (!eeprom_is_ready())</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Loops until the eeprom is no longer busy. </p>
|
||
|
|
<dl class="return"><dt><b>Returns:</b></dt><dd>Nothing. </dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga7ccd65b76bb9ed5ee03855779bae28de"></a><!-- doxytag: member="eeprom.h::eeprom_is_ready" ref="ga7ccd65b76bb9ed5ee03855779bae28de" args="()" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">#define eeprom_is_ready</td>
|
||
|
|
<td>(</td>
|
||
|
|
</td>
|
||
|
|
<td class="paramname"></td>
|
||
|
|
<td> ) </td>
|
||
|
|
<td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<dl class="return"><dt><b>Returns:</b></dt><dd>1 if EEPROM is ready for a new read/write operation, 0 if not. </dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<hr/><h2>Function Documentation</h2>
|
||
|
|
<a class="anchor" id="ga0ebd0e867b6f4a03d053801d3508f8de"></a><!-- doxytag: member="eeprom.h::eeprom_read_block" ref="ga0ebd0e867b6f4a03d053801d3508f8de" args="(void *__dst, const void *__src, size_t __n)" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">void eeprom_read_block </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">void * </td>
|
||
|
|
<td class="paramname"> <em>__dst</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype">const void * </td>
|
||
|
|
<td class="paramname"> <em>__src</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype">size_t </td>
|
||
|
|
<td class="paramname"> <em>__n</em></td><td> </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td></td>
|
||
|
|
<td>)</td>
|
||
|
|
<td></td><td></td><td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Read a block of <em>__n</em> bytes from EEPROM address <em>__src</em> to SRAM <em>__dst</em>. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga2d4ee8b92a592c764785fb5e4af5662b"></a><!-- doxytag: member="eeprom.h::eeprom_read_byte" ref="ga2d4ee8b92a592c764785fb5e4af5662b" args="(const uint8_t *__p) __ATTR_PURE__" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname"><a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> eeprom_read_byte </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">const <a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> * </td>
|
||
|
|
<td class="paramname"> <em>__p</em></td>
|
||
|
|
<td> ) </td>
|
||
|
|
<td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Read one byte from EEPROM address <em>__p</em>. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga88df934c94c037b10ebeb337a6883a74"></a><!-- doxytag: member="eeprom.h::eeprom_read_dword" ref="ga88df934c94c037b10ebeb337a6883a74" args="(const uint32_t *__p) __ATTR_PURE__" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname"><a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> eeprom_read_dword </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">const <a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> * </td>
|
||
|
|
<td class="paramname"> <em>__p</em></td>
|
||
|
|
<td> ) </td>
|
||
|
|
<td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Read one 32-bit double word (little endian) from EEPROM address <em>__p</em>. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga88da5e9bf80b4acded6018314baab6cd"></a><!-- doxytag: member="eeprom.h::eeprom_read_float" ref="ga88da5e9bf80b4acded6018314baab6cd" args="(const float *__p) __ATTR_PURE__" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">float eeprom_read_float </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">const float * </td>
|
||
|
|
<td class="paramname"> <em>__p</em></td>
|
||
|
|
<td> ) </td>
|
||
|
|
<td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Read one float value (little endian) from EEPROM address <em>__p</em>. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="gabeef2e14398b47268f88462b3d7738dc"></a><!-- doxytag: member="eeprom.h::eeprom_read_word" ref="gabeef2e14398b47268f88462b3d7738dc" args="(const uint16_t *__p) __ATTR_PURE__" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname"><a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> eeprom_read_word </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">const <a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> * </td>
|
||
|
|
<td class="paramname"> <em>__p</em></td>
|
||
|
|
<td> ) </td>
|
||
|
|
<td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Read one 16-bit word (little endian) from EEPROM address <em>__p</em>. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="gaa42f9b445115c9bbbeca19dab6f7fba9"></a><!-- doxytag: member="eeprom.h::eeprom_update_block" ref="gaa42f9b445115c9bbbeca19dab6f7fba9" args="(const void *__src, void *__dst, size_t __n)" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">void eeprom_update_block </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">const void * </td>
|
||
|
|
<td class="paramname"> <em>__src</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype">void * </td>
|
||
|
|
<td class="paramname"> <em>__dst</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype">size_t </td>
|
||
|
|
<td class="paramname"> <em>__n</em></td><td> </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td></td>
|
||
|
|
<td>)</td>
|
||
|
|
<td></td><td></td><td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Update a block of <em>__n</em> bytes to EEPROM address <em>__dst</em> from <em>__src</em>. </p>
|
||
|
|
<dl class="note"><dt><b>Note:</b></dt><dd>The argument order is mismatch with common functions like <a class="el" href="group__avr__string.html#ga54e4f23104fa6f722f9459d2673a1eba" title="Copy a string.">strcpy()</a>. </dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="ga63aee2719099e8435e8584d4b3e51991"></a><!-- doxytag: member="eeprom.h::eeprom_update_byte" ref="ga63aee2719099e8435e8584d4b3e51991" args="(uint8_t *__p, uint8_t __value)" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">void eeprom_update_byte </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype"><a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> * </td>
|
||
|
|
<td class="paramname"> <em>__p</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype"><a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> </td>
|
||
|
|
<td class="paramname"> <em>__value</em></td><td> </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td></td>
|
||
|
|
<td>)</td>
|
||
|
|
<td></td><td></td><td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Update a byte <em>__value</em> to EEPROM address <em>__p</em>. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<a class="anchor" id="gaab79c4b2b5e8159d5f37d26d11d3f954"></a><!-- doxytag: member="eeprom.h::eeprom_update_dword" ref="gaab79c4b2b5e8159d5f37d26d11d3f954" args="(uint32_t *__p, uint32_t __value)" -->
|
||
|
|
<div class="memitem">
|
||
|
|
<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">void eeprom_update_dword </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> * </td>
|
||
|
|
<td class="paramname"> <em>__p</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> </td>
|
||
|
|
<td class="paramname"> <em>__value</em></td><td> </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td></td>
|
||
|
|
<td>)</td>
|
||
|
|
<td></td><td></td><td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<div class="memdoc">
|
||
|
|
<p>Update a 32-bit double word <em>__value</em> to EEPROM address <em>__p</em>. </p>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
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<a class="anchor" id="ga106a2e703b12cad4d35380b1a69ac586"></a><!-- doxytag: member="eeprom.h::eeprom_update_float" ref="ga106a2e703b12cad4d35380b1a69ac586" args="(float *__p, float __value)" -->
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<div class="memitem">
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<td class="memname">void eeprom_update_float </td>
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<td>(</td>
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<td class="paramtype">float * </td>
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<td class="paramname"> <em>__p</em>, </td>
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<td class="paramtype">float </td>
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<td class="paramname"> <em>__value</em></td><td> </td>
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<div class="memdoc">
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<p>Update a float <em>__value</em> to EEPROM address <em>__p</em>. </p>
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<a class="anchor" id="ga131cff4e1ae5fcdf5685cab524ea4553"></a><!-- doxytag: member="eeprom.h::eeprom_update_word" ref="ga131cff4e1ae5fcdf5685cab524ea4553" args="(uint16_t *__p, uint16_t __value)" -->
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<td class="memname">void eeprom_update_word </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> * </td>
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<td class="paramname"> <em>__p</em>, </td>
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> </td>
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<td class="paramname"> <em>__value</em></td><td> </td>
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<td></td>
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<td>)</td>
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</table>
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</div>
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<div class="memdoc">
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<p>Update a word <em>__value</em> to EEPROM address <em>__p</em>. </p>
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</div>
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<a class="anchor" id="gac5c2be42eb170be7a26fe8b7cce4bc4d"></a><!-- doxytag: member="eeprom.h::eeprom_write_block" ref="gac5c2be42eb170be7a26fe8b7cce4bc4d" args="(const void *__src, void *__dst, size_t __n)" -->
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<div class="memitem">
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<table class="memname">
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<td class="memname">void eeprom_write_block </td>
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<td>(</td>
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<td class="paramtype">const void * </td>
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<td class="paramname"> <em>__src</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">void * </td>
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<td class="paramname"> <em>__dst</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"> <em>__n</em></td><td> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td><td></td>
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</table>
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</div>
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<div class="memdoc">
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<p>Write a block of <em>__n</em> bytes to EEPROM address <em>__dst</em> from <em>__src</em>. </p>
|
||
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<dl class="note"><dt><b>Note:</b></dt><dd>The argument order is mismatch with common functions like <a class="el" href="group__avr__string.html#ga54e4f23104fa6f722f9459d2673a1eba" title="Copy a string.">strcpy()</a>. </dd></dl>
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</div>
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<a class="anchor" id="ga682e0b2ca0badd47e1e30e61617e1361"></a><!-- doxytag: member="eeprom.h::eeprom_write_byte" ref="ga682e0b2ca0badd47e1e30e61617e1361" args="(uint8_t *__p, uint8_t __value)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void eeprom_write_byte </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> * </td>
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<td class="paramname"> <em>__p</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> </td>
|
||
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<td class="paramname"> <em>__value</em></td><td> </td>
|
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
|
||
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<p>Write a byte <em>__value</em> to EEPROM address <em>__p</em>. </p>
|
||
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||
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</div>
|
||
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</div>
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<a class="anchor" id="ga012c7fa61d9695b7f0f5187d2560e598"></a><!-- doxytag: member="eeprom.h::eeprom_write_dword" ref="ga012c7fa61d9695b7f0f5187d2560e598" args="(uint32_t *__p, uint32_t __value)" -->
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<div class="memitem">
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<div class="memproto">
|
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<table class="memname">
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<tr>
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<td class="memname">void eeprom_write_dword </td>
|
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<td>(</td>
|
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> * </td>
|
||
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<td class="paramname"> <em>__p</em>, </td>
|
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</tr>
|
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<tr>
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||
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<td class="paramkey"></td>
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<td></td>
|
||
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga33594304e786b158f3fb30289278f5af">uint32_t</a> </td>
|
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<td class="paramname"> <em>__value</em></td><td> </td>
|
||
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td><td></td>
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</tr>
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</table>
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</div>
|
||
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<div class="memdoc">
|
||
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<p>Write a 32-bit double word <em>__value</em> to EEPROM address <em>__p</em>. </p>
|
||
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|
||
|
|
</div>
|
||
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</div>
|
||
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<a class="anchor" id="gac738db5e12a0369d332ca43563755095"></a><!-- doxytag: member="eeprom.h::eeprom_write_float" ref="gac738db5e12a0369d332ca43563755095" args="(float *__p, float __value)" -->
|
||
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<div class="memitem">
|
||
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<div class="memproto">
|
||
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<table class="memname">
|
||
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<tr>
|
||
|
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<td class="memname">void eeprom_write_float </td>
|
||
|
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<td>(</td>
|
||
|
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<td class="paramtype">float * </td>
|
||
|
|
<td class="paramname"> <em>__p</em>, </td>
|
||
|
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</tr>
|
||
|
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<tr>
|
||
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<td class="paramkey"></td>
|
||
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<td></td>
|
||
|
|
<td class="paramtype">float </td>
|
||
|
|
<td class="paramname"> <em>__value</em></td><td> </td>
|
||
|
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</tr>
|
||
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<tr>
|
||
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<td></td>
|
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<td>)</td>
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<td></td><td></td><td></td>
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</table>
|
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</div>
|
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<div class="memdoc">
|
||
|
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<p>Write a float <em>__value</em> to EEPROM address <em>__p</em>. </p>
|
||
|
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|
||
|
|
</div>
|
||
|
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</div>
|
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<a class="anchor" id="ga38e4426e45512adb5e33bf8eff20ab41"></a><!-- doxytag: member="eeprom.h::eeprom_write_word" ref="ga38e4426e45512adb5e33bf8eff20ab41" args="(uint16_t *__p, uint16_t __value)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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||
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<td class="memname">void eeprom_write_word </td>
|
||
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<td>(</td>
|
||
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> * </td>
|
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<td class="paramname"> <em>__p</em>, </td>
|
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="group__avr__stdint.html#ga1f1825b69244eb3ad2c7165ddc99c956">uint16_t</a> </td>
|
||
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<td class="paramname"> <em>__value</em></td><td> </td>
|
||
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td><td></td>
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</table>
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</div>
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<div class="memdoc">
|
||
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<p>Write a word <em>__value</em> to EEPROM address <em>__p</em>. </p>
|
||
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||
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</div>
|
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