sdk-ameba-v4.0b_without_nda.../doc/api_doc/group__efuse.html

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<div class="header">
  <div class="headertitle">
<div class="title">EFUSE<div class="ingroups"><a class="el" href="group__sdk.html">Ameba SDK</a> &raquo; <a class="el" href="group__hal.html">HAL</a></div></div>  </div>
</div><!--header-->
<div class="contents">

<p>efuse functions
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
Ameba Common</h2></td></tr>
<tr class="memitem:ga703f8d2f3adc29d992576b7379d7abfd"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga703f8d2f3adc29d992576b7379d7abfd">efuse_get_remaining_length</a> (void)</td></tr>
<tr class="memdesc:ga703f8d2f3adc29d992576b7379d7abfd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get remaining efuse length.  <a href="#ga703f8d2f3adc29d992576b7379d7abfd">More...</a><br /></td></tr>
<tr class="separator:ga703f8d2f3adc29d992576b7379d7abfd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga791cdc0d5588655ef7ce90f7c3a0163f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga791cdc0d5588655ef7ce90f7c3a0163f">efuse_mtp_read</a> (uint8_t *data)</td></tr>
<tr class="memdesc:ga791cdc0d5588655ef7ce90f7c3a0163f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read efuse contant of specified user.  <a href="#ga791cdc0d5588655ef7ce90f7c3a0163f">More...</a><br /></td></tr>
<tr class="separator:ga791cdc0d5588655ef7ce90f7c3a0163f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga08c6831a0ea466d0a6faf8432faf1ffd"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga08c6831a0ea466d0a6faf8432faf1ffd">efuse_mtp_write</a> (uint8_t *data, uint8_t len)</td></tr>
<tr class="memdesc:ga08c6831a0ea466d0a6faf8432faf1ffd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Write user's contant to efuse.  <a href="#ga08c6831a0ea466d0a6faf8432faf1ffd">More...</a><br /></td></tr>
<tr class="separator:ga08c6831a0ea466d0a6faf8432faf1ffd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga571ddd7c7ada8dd7b2e5e82bd9b98c7a"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga571ddd7c7ada8dd7b2e5e82bd9b98c7a">efuse_otp_read</a> (u8 address, u8 len, u8 *buf)</td></tr>
<tr class="memdesc:ga571ddd7c7ada8dd7b2e5e82bd9b98c7a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read efuse OTP contant.  <a href="#ga571ddd7c7ada8dd7b2e5e82bd9b98c7a">More...</a><br /></td></tr>
<tr class="separator:ga571ddd7c7ada8dd7b2e5e82bd9b98c7a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga0dee50805b7c324be8abe994d0c701c6"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga0dee50805b7c324be8abe994d0c701c6">efuse_otp_write</a> (u8 address, u8 len, u8 *buf)</td></tr>
<tr class="memdesc:ga0dee50805b7c324be8abe994d0c701c6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Write user's contant to OTP efuse.  <a href="#ga0dee50805b7c324be8abe994d0c701c6">More...</a><br /></td></tr>
<tr class="separator:ga0dee50805b7c324be8abe994d0c701c6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad60cd36c85fc3bae72679927634e0352"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#gad60cd36c85fc3bae72679927634e0352">efuse_otp_chk</a> (u8 len, u8 *buf)</td></tr>
<tr class="memdesc:gad60cd36c85fc3bae72679927634e0352"><td class="mdescLeft">&#160;</td><td class="mdescRight">ckeck user's contant to OTP efuse  <a href="#gad60cd36c85fc3bae72679927634e0352">More...</a><br /></td></tr>
<tr class="separator:gad60cd36c85fc3bae72679927634e0352"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga1d098405d63cabaf3c70a0f06d08f430"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga1d098405d63cabaf3c70a0f06d08f430">efuse_disable_jtag</a> (void)</td></tr>
<tr class="memdesc:ga1d098405d63cabaf3c70a0f06d08f430"><td class="mdescLeft">&#160;</td><td class="mdescRight">Disable jtag.  <a href="#ga1d098405d63cabaf3c70a0f06d08f430">More...</a><br /></td></tr>
<tr class="separator:ga1d098405d63cabaf3c70a0f06d08f430"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
Ameba1 Only</h2></td></tr>
<tr class="memitem:ga4cf0056afbd498f827cf27909b613bd4"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga4cf0056afbd498f827cf27909b613bd4">efuse_key1_write</a> (u8 address, u8 len, u8 *buf)</td></tr>
<tr class="memdesc:ga4cf0056afbd498f827cf27909b613bd4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Write key1 to efuse.  <a href="#ga4cf0056afbd498f827cf27909b613bd4">More...</a><br /></td></tr>
<tr class="separator:ga4cf0056afbd498f827cf27909b613bd4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6d23283fa618b722163570d13a3596a8"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga6d23283fa618b722163570d13a3596a8">efuse_key2_write</a> (u8 address, u8 len, u8 *buf)</td></tr>
<tr class="memdesc:ga6d23283fa618b722163570d13a3596a8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Write key2 to efuse.  <a href="#ga6d23283fa618b722163570d13a3596a8">More...</a><br /></td></tr>
<tr class="separator:ga6d23283fa618b722163570d13a3596a8"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
AmebaZ Only</h2></td></tr>
<tr class="memitem:ga34cb06c253306a494edb7b101c820045"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga34cb06c253306a494edb7b101c820045">efuse_rdp_enable</a> (void)</td></tr>
<tr class="memdesc:ga34cb06c253306a494edb7b101c820045"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set RDP Enable.  <a href="#ga34cb06c253306a494edb7b101c820045">More...</a><br /></td></tr>
<tr class="separator:ga34cb06c253306a494edb7b101c820045"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga01d89c6b9205c219c3cef4123aa8a82a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#ga01d89c6b9205c219c3cef4123aa8a82a">efuse_rdp_keyset</a> (u8 *rdp_key)</td></tr>
<tr class="memdesc:ga01d89c6b9205c219c3cef4123aa8a82a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set 16B RDP key into EFUSE.  <a href="#ga01d89c6b9205c219c3cef4123aa8a82a">More...</a><br /></td></tr>
<tr class="separator:ga01d89c6b9205c219c3cef4123aa8a82a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gacdb2b3076bc8d9f1dbd59ed18fe56b0e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__efuse.html#gacdb2b3076bc8d9f1dbd59ed18fe56b0e">efuse_otf_keyset</a> (u8 *otf_key)</td></tr>
<tr class="memdesc:gacdb2b3076bc8d9f1dbd59ed18fe56b0e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set 16B OTF key into EFUSE.  <a href="#gacdb2b3076bc8d9f1dbd59ed18fe56b0e">More...</a><br /></td></tr>
<tr class="separator:gacdb2b3076bc8d9f1dbd59ed18fe56b0e"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>efuse functions </p>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ga1d098405d63cabaf3c70a0f06d08f430"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">int efuse_disable_jtag </td>
          <td>(</td>
          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Disable jtag. </p>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">0</td><td>Success </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga703f8d2f3adc29d992576b7379d7abfd"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">int efuse_get_remaining_length </td>
          <td>(</td>
          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get remaining efuse length. </p>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname"></td><td>remaining efuse length </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga4cf0056afbd498f827cf27909b613bd4"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">int efuse_key1_write </td>
          <td>(</td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>address</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>len</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8 *&#160;</td>
          <td class="paramname"><em>buf</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Write key1 to efuse. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">address</td><td>Specifies the offset of the programmed efuse. </td></tr>
    <tr><td class="paramname">len</td><td>Specifies the data length of programmed data. </td></tr>
    <tr><td class="paramname">buf</td><td>Specified the data to be programmed. </td></tr>
  </table>
  </dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">0</td><td>Success </td></tr>
    <tr><td class="paramname">-1</td><td>Failure </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga6d23283fa618b722163570d13a3596a8"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">int efuse_key2_write </td>
          <td>(</td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>address</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>len</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8 *&#160;</td>
          <td class="paramname"><em>buf</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Write key2 to efuse. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">address</td><td>Specifies the offset of the programmed efuse. </td></tr>
    <tr><td class="paramname">len</td><td>Specifies the data length of programmed data. </td></tr>
    <tr><td class="paramname">buf</td><td>Specified the data to be programmed. </td></tr>
  </table>
  </dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">0</td><td>Success </td></tr>
    <tr><td class="paramname">-1</td><td>Failure </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga791cdc0d5588655ef7ce90f7c3a0163f"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void efuse_mtp_read </td>
          <td>(</td>
          <td class="paramtype">uint8_t *&#160;</td>
          <td class="paramname"><em>data</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Read efuse contant of specified user. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">data</td><td>Specified the address to save the readback data. </td></tr>
  </table>
  </dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">none</td><td></td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga08c6831a0ea466d0a6faf8432faf1ffd"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">int efuse_mtp_write </td>
          <td>(</td>
          <td class="paramtype">uint8_t *&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>len</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Write user's contant to efuse. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">data</td><td>Specified the data to be programmed. </td></tr>
    <tr><td class="paramname">len</td><td>Specifies the data length of programmed data. </td></tr>
  </table>
  </dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">value</td><td><ul>
<li>0~32: Success</li>
<li>-1: Failure </li>
</ul>
</td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="gacdb2b3076bc8d9f1dbd59ed18fe56b0e"></a>
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          <td class="memname">void efuse_otf_keyset </td>
          <td>(</td>
          <td class="paramtype">u8 *&#160;</td>
          <td class="paramname"><em>otf_key</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Set 16B OTF key into EFUSE. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">OtfKey</td><td>16B EFUSE KEY </td></tr>
  </table>
  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>can not change or read back after write. </dd></dl>

</div>
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        <tr>
          <td class="memname">int efuse_otp_chk </td>
          <td>(</td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>len</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8 *&#160;</td>
          <td class="paramname"><em>buf</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>ckeck user's contant to OTP efuse </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">buf</td><td>Specified the data to be programmed. </td></tr>
    <tr><td class="paramname">len</td><td>Specifies the data length of programmed data. </td></tr>
  </table>
  </dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">0</td><td>Success </td></tr>
    <tr><td class="paramname">-1</td><td>Failure </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga571ddd7c7ada8dd7b2e5e82bd9b98c7a"></a>
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      <table class="memname">
        <tr>
          <td class="memname">int efuse_otp_read </td>
          <td>(</td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>address</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>len</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8 *&#160;</td>
          <td class="paramname"><em>buf</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Read efuse OTP contant. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">address</td><td>Specifies the offset of the OTP. </td></tr>
    <tr><td class="paramname">len</td><td>Specifies the length of readback data. </td></tr>
    <tr><td class="paramname">buf</td><td>Specified the address to save the readback data. </td></tr>
  </table>
  </dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">0</td><td>Success </td></tr>
    <tr><td class="paramname">-1</td><td>Failure </td></tr>
  </table>
  </dd>
</dl>

</div>
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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">int efuse_otp_write </td>
          <td>(</td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>address</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8&#160;</td>
          <td class="paramname"><em>len</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u8 *&#160;</td>
          <td class="paramname"><em>buf</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Write user's contant to OTP efuse. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">address</td><td>Specifies the offset of the programmed OTP. </td></tr>
    <tr><td class="paramname">len</td><td>Specifies the data length of programmed data. </td></tr>
    <tr><td class="paramname">buf</td><td>Specified the data to be programmed. </td></tr>
  </table>
  </dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
  <table class="retval">
    <tr><td class="paramname">0</td><td>Success </td></tr>
    <tr><td class="paramname">-1</td><td>Failure </td></tr>
  </table>
  </dd>
</dl>

</div>
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        <tr>
          <td class="memname">void efuse_rdp_enable </td>
          <td>(</td>
          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Set RDP Enable. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">none</td><td></td></tr>
  </table>
  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>can not change or read back after write. </dd></dl>

</div>
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        <tr>
          <td class="memname">void efuse_rdp_keyset </td>
          <td>(</td>
          <td class="paramtype">u8 *&#160;</td>
          <td class="paramname"><em>rdp_key</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Set 16B RDP key into EFUSE. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">rdp_key</td><td>16B EFUSE KEY </td></tr>
  </table>
  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>can not change or read back after write. </dd></dl>

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