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<div id="projectname">libbladeRF
 <span id="projectnumber">1.7.2</span>
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<div id="projectbrief">Nuand bladeRF library</div>
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<a href="#enum-members">Enumerations</a> |
<a href="#func-members">Functions</a> </div>
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<div class="title">Internal loopback</div> </div>
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<div class="contents">
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p>The bladeRF provides a variety of loopback modes to aid in development and testing.</p>
<p>In general, the digital or baseband loopback modes provide the most "ideal" operating conditions, while the internal RF loopback modes introduce more of the typical nonidealities of analog systems.</p>
<p>These functions are thread-safe. </p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:ga29a7d4f25eec5aab329cdae462f8ba47"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#ga29a7d4f25eec5aab329cdae462f8ba47">bladerf_loopback</a> { <br />
  <a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47ae9f058339864543b49fa4177095f3cd9">BLADERF_LB_FIRMWARE</a> = 1,
<a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47a83d302fa540dd99304951feb5030aad5">BLADERF_LB_BB_TXLPF_RXVGA2</a>,
<a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47a66c189e6c0af1ca22d6a5570cf35f7b1">BLADERF_LB_BB_TXVGA1_RXVGA2</a>,
<a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47aac0bdb5880a69e43bb6116d0f831145d">BLADERF_LB_BB_TXLPF_RXLPF</a>,
<br />
  <a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47accfc80cc23ea9b7959bfe9199905c24d">BLADERF_LB_BB_TXVGA1_RXLPF</a>,
<a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47aedc6d6586d725dba861c6232c9c914b6">BLADERF_LB_RF_LNA1</a>,
<a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47ac3b9def0ea9f1d81dc4a4667c66e744a">BLADERF_LB_RF_LNA2</a>,
<a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47ac44ab6c321b6dfea25715e3dad085e5b">BLADERF_LB_RF_LNA3</a>,
<br />
  <a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gga29a7d4f25eec5aab329cdae462f8ba47ae59a50b8445ed77ddf4258eb77624b02">BLADERF_LB_NONE</a>
<br />
}</td></tr>
<tr class="separator:ga29a7d4f25eec5aab329cdae462f8ba47"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaff1e4ef1b34992624967810136332a16"><td class="memItemLeft" align="right" valign="top"><a class="el" href="libblade_r_f_8h.html#a5e3652cae8b48c1ad174f0b06bbd06d0">API_EXPORT</a> int <a class="el" href="libblade_r_f_8h.html#a66285a1fe575693f5f275b212891222e">CALL_CONV</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gaff1e4ef1b34992624967810136332a16">bladerf_set_loopback</a> (struct bladerf *dev, <a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#ga29a7d4f25eec5aab329cdae462f8ba47">bladerf_loopback</a> l)</td></tr>
<tr class="separator:gaff1e4ef1b34992624967810136332a16"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab5e3a4f99eb40c7b3834be1f64c8ab01"><td class="memItemLeft" align="right" valign="top"><a class="el" href="libblade_r_f_8h.html#a5e3652cae8b48c1ad174f0b06bbd06d0">API_EXPORT</a> int <a class="el" href="libblade_r_f_8h.html#a66285a1fe575693f5f275b212891222e">CALL_CONV</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#gab5e3a4f99eb40c7b3834be1f64c8ab01">bladerf_get_loopback</a> (struct bladerf *dev, <a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#ga29a7d4f25eec5aab329cdae462f8ba47">bladerf_loopback</a> *l)</td></tr>
<tr class="separator:gab5e3a4f99eb40c7b3834be1f64c8ab01"><td class="memSeparator" colspan="2"> </td></tr>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
<a class="anchor" id="ga29a7d4f25eec5aab329cdae462f8ba47"></a>
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<td class="memname">enum <a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#ga29a7d4f25eec5aab329cdae462f8ba47">bladerf_loopback</a></td>
</tr>
</table>
</div><div class="memdoc">
<p>Loopback options </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47ae9f058339864543b49fa4177095f3cd9"></a>BLADERF_LB_FIRMWARE </td><td class="fielddoc">
<p>Firmware loopback inside of the FX3 </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47a83d302fa540dd99304951feb5030aad5"></a>BLADERF_LB_BB_TXLPF_RXVGA2 </td><td class="fielddoc">
<p>Baseband loopback. TXLPF output is connected to the RXVGA2 input. </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47a66c189e6c0af1ca22d6a5570cf35f7b1"></a>BLADERF_LB_BB_TXVGA1_RXVGA2 </td><td class="fielddoc">
<p>Baseband loopback. TXVGA1 output is connected to the RXVGA2 input. </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47aac0bdb5880a69e43bb6116d0f831145d"></a>BLADERF_LB_BB_TXLPF_RXLPF </td><td class="fielddoc">
<p>Baseband loopback. TXLPF output is connected to the RXLPF input. </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47accfc80cc23ea9b7959bfe9199905c24d"></a>BLADERF_LB_BB_TXVGA1_RXLPF </td><td class="fielddoc">
<p>Baseband loopback. TXVGA1 output is connected to RXLPF input. </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47aedc6d6586d725dba861c6232c9c914b6"></a>BLADERF_LB_RF_LNA1 </td><td class="fielddoc">
<p>RF loopback. The TXMIX output, through the AUX PA, is connected to the output of LNA1. </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47ac3b9def0ea9f1d81dc4a4667c66e744a"></a>BLADERF_LB_RF_LNA2 </td><td class="fielddoc">
<p>RF loopback. The TXMIX output, through the AUX PA, is connected to the output of LNA2. </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47ac44ab6c321b6dfea25715e3dad085e5b"></a>BLADERF_LB_RF_LNA3 </td><td class="fielddoc">
<p>RF loopback. The TXMIX output, through the AUX PA, is connected to the output of LNA3. </p>
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="gga29a7d4f25eec5aab329cdae462f8ba47ae59a50b8445ed77ddf4258eb77624b02"></a>BLADERF_LB_NONE </td><td class="fielddoc">
<p>Disables loopback and returns to normal operation. </p>
</td></tr>
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<p>Definition at line <a class="el" href="libblade_r_f_8h_source.html#l01283">1283</a> of file <a class="el" href="libblade_r_f_8h_source.html">libbladeRF.h</a>.</p>
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</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gab5e3a4f99eb40c7b3834be1f64c8ab01"></a>
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<td class="memname"><a class="el" href="libblade_r_f_8h.html#a5e3652cae8b48c1ad174f0b06bbd06d0">API_EXPORT</a> int <a class="el" href="libblade_r_f_8h.html#a66285a1fe575693f5f275b212891222e">CALL_CONV</a> bladerf_get_loopback </td>
<td>(</td>
<td class="paramtype">struct bladerf * </td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#ga29a7d4f25eec5aab329cdae462f8ba47">bladerf_loopback</a> * </td>
<td class="paramname"><em>l</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
<p>Get current loopback mode</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">dev</td><td>Device handle </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">l</td><td>Current loopback mode</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success, value from <a class="el" href="group___r_e_t_c_o_d_e_s.html">Error codes</a> list on failure </dd></dl>
</div>
</div>
<a class="anchor" id="gaff1e4ef1b34992624967810136332a16"></a>
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<td class="memname"><a class="el" href="libblade_r_f_8h.html#a5e3652cae8b48c1ad174f0b06bbd06d0">API_EXPORT</a> int <a class="el" href="libblade_r_f_8h.html#a66285a1fe575693f5f275b212891222e">CALL_CONV</a> bladerf_set_loopback </td>
<td>(</td>
<td class="paramtype">struct bladerf * </td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___f_n___l_o_o_p_b_a_c_k.html#ga29a7d4f25eec5aab329cdae462f8ba47">bladerf_loopback</a> </td>
<td class="paramname"><em>l</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>Apply specified loopback mode</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dev</td><td>Device handle </td></tr>
<tr><td class="paramname">l</td><td>Loopback mode. Note that BLADERF_LB_NONE disables the use of loopback functionality.</td></tr>
</table>
</dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>Loopback modes should only be enabled or disabled while the RX and TX modules are both disabled (and therefore, when no samples are being actively streamed). Otherwise, unexpected behavior may occur.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success, value from <a class="el" href="group___r_e_t_c_o_d_e_s.html">Error codes</a> list on failure </dd></dl>
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