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<a href="nfc__layer__b_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * SPDX-License-Identifier: MIT</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> */</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#ifndef M5_UNIT_NFC_NFC_LAYER_NFC_LAYER_B_HPP</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#define M5_UNIT_NFC_NFC_LAYER_NFC_LAYER_B_HPP</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include &quot;<a class="code" href="nfc__layer_8hpp.html">nfc/layer/nfc_layer.hpp</a>&quot;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include &quot;<a class="code" href="nfcb_8hpp.html">nfc/b/nfcb.hpp</a>&quot;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include &quot;<a class="code" href="iso_d_e_p_8hpp.html">nfc/isoDEP/isoDEP.hpp</a>&quot;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &quot;<a class="code" href="ndef__layer_8hpp.html">nfc/layer/ndef_layer.hpp</a>&quot;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacem5.html">m5</a> {</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceunit.html">unit</a> {</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">class </span>UnitST25R3916;</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">class </span>CapST25R3916;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">class </span>UnitWS1850S;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span>} <span class="comment">// namespace unit</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacenfc.html">nfc</a> {</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="foldopen" id="foldopen00039" data-start="{" data-end="};">
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html"> 39</a></span><span class="keyword">class </span><a class="code hl_class" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html">NFCLayerB</a> : <span class="keyword">public</span> <a class="code hl_class" href="classm5_1_1nfc_1_1_n_f_c_layer_interface.html">NFCLayerInterface</a> {</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">struct </span>Adapter;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">explicit</span> <a class="code hl_class" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html">NFCLayerB</a>(<a class="code hl_class" href="classm5_1_1unit_1_1_unit_s_t25_r3916.html">m5::unit::UnitST25R3916</a>&amp; u);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">explicit</span> <a class="code hl_class" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html">NFCLayerB</a>(<a class="code hl_class" href="classm5_1_1unit_1_1_cap_s_t25_r3916.html">m5::unit::CapST25R3916</a>&amp; u);</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">explicit</span> <a class="code hl_class" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html">NFCLayerB</a>(m5::unit::UnitWS1850S&amp; u);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a122b2ce7114b2c5ed04e7b7457c2e098">transceive</a>(uint8_t* rx, uint16_t&amp; rx_len, <span class="keyword">const</span> uint8_t* tx, <span class="keyword">const</span> uint16_t tx_len,</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">const</span> uint32_t timeout_ms) <span class="keyword">override</span>;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a3f248f568f9ce9526593e1eb194073f4">transmit</a>(<span class="keyword">const</span> uint8_t* tx, <span class="keyword">const</span> uint16_t tx_len, <span class="keyword">const</span> uint32_t timeout_ms) <span class="keyword">override</span>;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a1f583ba3a2213ecd3d8c9012080c34ea">receive</a>(uint8_t* rx, uint16_t&amp; rx_len, <span class="keyword">const</span> uint32_t timeout_ms) <span class="keyword">override</span>;</div>
<div class="foldopen" id="foldopen00050" data-start="{" data-end="}">
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a8f40ff3e5e6bc0018e3e635229c1cbbc"> 50</a></span> <span class="keyword">virtual</span> <a class="code hl_class" href="classm5_1_1nfc_1_1isodep_1_1_iso_d_e_p.html">m5::nfc::isodep::IsoDEP</a>* <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a8f40ff3e5e6bc0018e3e635229c1cbbc">isoDEP</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">return</span> &amp;_isoDEP;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> }</div>
</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">virtual</span> uint16_t <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a282835821d919abdf7625609e3bf9d33">maximum_fifo_depth</a>() <span class="keyword">const override</span>;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="foldopen" id="foldopen00061" data-start="{" data-end="}">
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a11b95164e1ef71d9dfce3cad9ab3da29"> 61</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a11b95164e1ef71d9dfce3cad9ab3da29">isActive</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a>&amp; picc)<span class="keyword"> const</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">return</span> _activePICC.<a class="code hl_function" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a67d3842dce9b225cafb7d89e712ddc25">valid</a>() &amp;&amp; _activePICC == picc;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
</div>
<div class="foldopen" id="foldopen00070" data-start="{" data-end="}">
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a43e13b709e37cda6e0bd2e63ec0db114"> 70</a></span> <span class="keyword">const</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a>&amp; <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a43e13b709e37cda6e0bd2e63ec0db114">activatedPICC</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> _activePICC;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> }</div>
</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="foldopen" id="foldopen00087" data-start="{" data-end="}">
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#ab515868911273b8f1925bf4d41163eb7"> 87</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#ab515868911273b8f1925bf4d41163eb7">request</a>(uint8_t* atqb, uint16_t&amp; atqb_len, <span class="keyword">const</span> uint8_t afi = 0x00,</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="nfcb_8hpp.html#aa906fade1b147b015c38f75b7f4a0fcd">m5::nfc::b::Require</a> slots = m5::nfc::b::Require::Slot1,</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">const</span> uint32_t timeout_ms = m5::nfc::b::TIMEOUT_REQ_WUP_B)</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> {</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">return</span> request_wakeup(atqb, atqb_len, afi, slots, <span class="keyword">false</span>, timeout_ms);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> }</div>
</div>
<div class="foldopen" id="foldopen00103" data-start="{" data-end="}">
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a1a4bd73e6949ae6391316024baa7d310"> 103</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a1a4bd73e6949ae6391316024baa7d310">wakeup</a>(uint8_t* atqb, uint16_t&amp; atqb_len, <span class="keyword">const</span> uint8_t afi = 0x00,</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="nfcb_8hpp.html#aa906fade1b147b015c38f75b7f4a0fcd">m5::nfc::b::Require</a> slots = m5::nfc::b::Require::Slot1,</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">const</span> uint32_t timeout_ms = m5::nfc::b::TIMEOUT_REQ_WUP_B)</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> {</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">return</span> request_wakeup(atqb, atqb_len, afi, slots, <span class="keyword">true</span>, timeout_ms);</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a8c0d0d0f0746fc372d1f9a1599ca00b9">detect</a>(<a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a>&amp; picc, <span class="keyword">const</span> uint8_t afi = 0x00, <span class="keyword">const</span> uint32_t timeout_ms = 50U,</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">const</span> uint32_t req_timeout_ms = m5::nfc::b::TIMEOUT_REQ_WUP_B);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a8c0d0d0f0746fc372d1f9a1599ca00b9">detect</a>(std::vector&lt;m5::nfc::b::PICC&gt;&amp; piccs, <span class="keyword">const</span> uint8_t afi = 0x00, <span class="keyword">const</span> uint8_t max_piccs = 4,</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">const</span> uint32_t timeout_ms = 1000U, <span class="keyword">const</span> uint32_t req_timeout_ms = m5::nfc::b::TIMEOUT_REQ_WUP_B);</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a69822941ce3155be40d915958018d4d5">select</a>(<a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a>&amp; picc, <span class="keyword">const</span> uint32_t timeout_ms = m5::nfc::b::TIMEOUT_ATTRIB);</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="preprocessor">#if 0</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordtype">bool</span> activate(<a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a>&amp; picc);</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordtype">bool</span> reactivate(<span class="keyword">const</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a>&amp; picc);</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> reactivate()</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> {</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordflow">return</span> reactivate(_activePICC);</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordtype">bool</span> hlt(<span class="keyword">const</span> uint8_t pupi[4], <span class="keyword">const</span> uint32_t timeout_ms = m5::nfc::b::TIMEOUT_HLTB);</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">bool</span> deselect(<span class="keyword">const</span> uint8_t pupi[4], <span class="keyword">const</span> uint8_t cid = 0xFF,</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">const</span> uint32_t timeout_ms = m5::nfc::b::TIMEOUT_DESELECT);</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordtype">bool</span> deactivate();</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span><span class="keyword">protected</span>:</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordtype">bool</span> request_wakeup(uint8_t* atqb, uint16_t&amp; atqb_len, <span class="keyword">const</span> uint8_t afi, <span class="keyword">const</span> <a class="code hl_enumeration" href="nfcb_8hpp.html#aa906fade1b147b015c38f75b7f4a0fcd">m5::nfc::b::Require</a> slots,</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a1a4bd73e6949ae6391316024baa7d310">wakeup</a>, <span class="keyword">const</span> uint32_t timeout_ms = m5::nfc::b::TIMEOUT_REQ_WUP_B);</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> </div>
<div class="foldopen" id="foldopen00158" data-start="{" data-end="}">
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a4120d13050d0fe0ed607b9e762623111"> 158</a></span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a4120d13050d0fe0ed607b9e762623111">read</a>(uint8_t* rx, uint16_t&amp; rx_len, <span class="keyword">const</span> uint16_t saddr)<span class="keyword"> override</span></div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> }</div>
</div>
<div class="foldopen" id="foldopen00162" data-start="{" data-end="}">
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a4283e90fffaadbda8ab352ec153cd893"> 162</a></span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a4283e90fffaadbda8ab352ec153cd893">write</a>(<span class="keyword">const</span> uint16_t saddr, <span class="keyword">const</span> uint8_t* tx, <span class="keyword">const</span> uint16_t tx_len)<span class="keyword"> override</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> }</div>
</div>
<div class="foldopen" id="foldopen00166" data-start="{" data-end="}">
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#afa2dbc0f285d67cefe5fdc9193784672"> 166</a></span> <span class="keyword">inline</span> <span class="keyword">virtual</span> uint16_t <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#afa2dbc0f285d67cefe5fdc9193784672">first_user_block</a>()<span class="keyword"> const override</span></div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> }</div>
</div>
<div class="foldopen" id="foldopen00170" data-start="{" data-end="}">
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a36c1c50e191cbcc8755456520c61561d"> 170</a></span> <span class="keyword">inline</span> <span class="keyword">virtual</span> uint16_t <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a36c1c50e191cbcc8755456520c61561d">last_user_block</a>()<span class="keyword"> const override</span></div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> }</div>
</div>
<div class="foldopen" id="foldopen00174" data-start="{" data-end="}">
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a5f42174f261408428c47686a8c2a7bc7"> 174</a></span> <span class="keyword">inline</span> <span class="keyword">virtual</span> uint16_t <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a5f42174f261408428c47686a8c2a7bc7">user_area_size</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> }</div>
</div>
<div class="foldopen" id="foldopen00178" data-start="{" data-end="}">
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a19d4d6e76db9241d8e5a79c180acaba3"> 178</a></span> <span class="keyword">inline</span> <span class="keyword">virtual</span> uint16_t <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a19d4d6e76db9241d8e5a79c180acaba3">unit_size_read</a>()<span class="keyword"> const override</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> }</div>
</div>
<div class="foldopen" id="foldopen00182" data-start="{" data-end="}">
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"><a class="line" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#ac3993de89564964f63a7a0035b0837eb"> 182</a></span> <span class="keyword">inline</span> <span class="keyword">virtual</span> uint16_t <a class="code hl_function" href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#ac3993de89564964f63a7a0035b0837eb">unit_size_write</a>()<span class="keyword"> const override</span></div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> }</div>
</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span><span class="keyword">protected</span>:</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a> _activePICC{};</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <a class="code hl_class" href="classm5_1_1nfc_1_1ndef_1_1_n_d_e_f_layer.html">m5::nfc::ndef::NDEFLayer</a> _ndef;</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <a class="code hl_class" href="classm5_1_1nfc_1_1isodep_1_1_iso_d_e_p.html">m5::nfc::isodep::IsoDEP</a> _isoDEP;</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> std::unique_ptr&lt;Adapter&gt; _impl;</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>};</div>
</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> </div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span><span class="comment">// Impl for units</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span><span class="keyword">struct </span>NFCLayerB::Adapter {</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keyword">virtual</span> ~Adapter() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keyword">virtual</span> uint16_t max_fifo_depth() <span class="keyword">const</span> = 0;</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> transceive(uint8_t* rx, uint16_t&amp; rx_len, <span class="keyword">const</span> uint8_t* tx, <span class="keyword">const</span> uint16_t tx_len,</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keyword">const</span> uint32_t timeout_ms) = 0;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> transmit(<span class="keyword">const</span> uint8_t* tx, <span class="keyword">const</span> uint16_t tx_len, <span class="keyword">const</span> uint32_t timeout_ms) = 0;</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> receive(uint8_t* rx, uint16_t&amp; rx_len, <span class="keyword">const</span> uint32_t timeout_ms) = 0;</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span>};</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> </div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span>} <span class="comment">// namespace nfc</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span>} <span class="comment">// namespace m5</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html">m5::nfc::NFCLayerB</a></div><div class="ttdoc">Common interface layer for each chip of the NFC-B reader.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:39</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a11b95164e1ef71d9dfce3cad9ab3da29"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a11b95164e1ef71d9dfce3cad9ab3da29">m5::nfc::NFCLayerB::isActive</a></div><div class="ttdeci">bool isActive(const m5::nfc::b::PICC &amp;picc) const</div><div class="ttdoc">Is the specified PICC currently active?</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:61</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a122b2ce7114b2c5ed04e7b7457c2e098"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a122b2ce7114b2c5ed04e7b7457c2e098">m5::nfc::NFCLayerB::transceive</a></div><div class="ttdeci">virtual bool transceive(uint8_t *rx, uint16_t &amp;rx_len, const uint8_t *tx, const uint16_t tx_len, const uint32_t timeout_ms) override</div><div class="ttdoc">Transceive (RF command)</div><div class="ttdef"><b>Definition</b> nfc_layer_b.cpp:70</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a19d4d6e76db9241d8e5a79c180acaba3"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a19d4d6e76db9241d8e5a79c180acaba3">m5::nfc::NFCLayerB::unit_size_read</a></div><div class="ttdeci">virtual uint16_t unit_size_read() const override</div><div class="ttdoc">Unit size for read.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:178</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a1a4bd73e6949ae6391316024baa7d310"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a1a4bd73e6949ae6391316024baa7d310">m5::nfc::NFCLayerB::wakeup</a></div><div class="ttdeci">bool wakeup(uint8_t *atqb, uint16_t &amp;atqb_len, const uint8_t afi=0x00, const m5::nfc::b::Require slots=m5::nfc::b::Require::Slot1, const uint32_t timeout_ms=m5::nfc::b::TIMEOUT_REQ_WUP_B)</div><div class="ttdoc">Send WUPB to wake a PICC from IDLE or HALT.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:103</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a1f583ba3a2213ecd3d8c9012080c34ea"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a1f583ba3a2213ecd3d8c9012080c34ea">m5::nfc::NFCLayerB::receive</a></div><div class="ttdeci">virtual bool receive(uint8_t *rx, uint16_t &amp;rx_len, const uint32_t timeout_ms) override</div><div class="ttdoc">Receive only.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.cpp:81</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a282835821d919abdf7625609e3bf9d33"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a282835821d919abdf7625609e3bf9d33">m5::nfc::NFCLayerB::maximum_fifo_depth</a></div><div class="ttdeci">virtual uint16_t maximum_fifo_depth() const override</div><div class="ttdoc">Maximum FIFO depth.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.cpp:65</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a36c1c50e191cbcc8755456520c61561d"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a36c1c50e191cbcc8755456520c61561d">m5::nfc::NFCLayerB::last_user_block</a></div><div class="ttdeci">virtual uint16_t last_user_block() const override</div><div class="ttdoc">Last user block.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:170</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a3f248f568f9ce9526593e1eb194073f4"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a3f248f568f9ce9526593e1eb194073f4">m5::nfc::NFCLayerB::transmit</a></div><div class="ttdeci">virtual bool transmit(const uint8_t *tx, const uint16_t tx_len, const uint32_t timeout_ms) override</div><div class="ttdoc">Transmit only.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.cpp:76</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a4120d13050d0fe0ed607b9e762623111"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a4120d13050d0fe0ed607b9e762623111">m5::nfc::NFCLayerB::read</a></div><div class="ttdeci">virtual bool read(uint8_t *rx, uint16_t &amp;rx_len, const uint16_t saddr) override</div><div class="ttdoc">Read NDEF (block)</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:158</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a4283e90fffaadbda8ab352ec153cd893"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a4283e90fffaadbda8ab352ec153cd893">m5::nfc::NFCLayerB::write</a></div><div class="ttdeci">virtual bool write(const uint16_t saddr, const uint8_t *tx, const uint16_t tx_len) override</div><div class="ttdoc">Write NDEF (block)</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:162</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a43e13b709e37cda6e0bd2e63ec0db114"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a43e13b709e37cda6e0bd2e63ec0db114">m5::nfc::NFCLayerB::activatedPICC</a></div><div class="ttdeci">const m5::nfc::b::PICC &amp; activatedPICC() const</div><div class="ttdoc">Retrieve the currently activated PICC.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:70</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a5f42174f261408428c47686a8c2a7bc7"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a5f42174f261408428c47686a8c2a7bc7">m5::nfc::NFCLayerB::user_area_size</a></div><div class="ttdeci">virtual uint16_t user_area_size() const</div><div class="ttdoc">User area size (bytes)</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:174</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a69822941ce3155be40d915958018d4d5"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a69822941ce3155be40d915958018d4d5">m5::nfc::NFCLayerB::select</a></div><div class="ttdeci">bool select(m5::nfc::b::PICC &amp;picc, const uint32_t timeout_ms=m5::nfc::b::TIMEOUT_ATTRIB)</div><div class="ttdoc">Send REQB to discover a PICC in IDLE.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.cpp:128</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a8c0d0d0f0746fc372d1f9a1599ca00b9"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a8c0d0d0f0746fc372d1f9a1599ca00b9">m5::nfc::NFCLayerB::detect</a></div><div class="ttdeci">bool detect(m5::nfc::b::PICC &amp;picc, const uint8_t afi=0x00, const uint32_t timeout_ms=50U, const uint32_t req_timeout_ms=m5::nfc::b::TIMEOUT_REQ_WUP_B)</div><div class="ttdoc">Detect single idle PICC.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.cpp:86</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_a8f40ff3e5e6bc0018e3e635229c1cbbc"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#a8f40ff3e5e6bc0018e3e635229c1cbbc">m5::nfc::NFCLayerB::isoDEP</a></div><div class="ttdeci">virtual m5::nfc::isodep::IsoDEP * isoDEP() override</div><div class="ttdoc">ISO-DEP interface (nullptr if not supported)</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:50</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_ab515868911273b8f1925bf4d41163eb7"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#ab515868911273b8f1925bf4d41163eb7">m5::nfc::NFCLayerB::request</a></div><div class="ttdeci">bool request(uint8_t *atqb, uint16_t &amp;atqb_len, const uint8_t afi=0x00, const m5::nfc::b::Require slots=m5::nfc::b::Require::Slot1, const uint32_t timeout_ms=m5::nfc::b::TIMEOUT_REQ_WUP_B)</div><div class="ttdoc">Send REQB to discover a PICC in IDLE.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:87</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_ac3993de89564964f63a7a0035b0837eb"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#ac3993de89564964f63a7a0035b0837eb">m5::nfc::NFCLayerB::unit_size_write</a></div><div class="ttdeci">virtual uint16_t unit_size_write() const override</div><div class="ttdoc">Unit size for write.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:182</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_b_html_afa2dbc0f285d67cefe5fdc9193784672"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_b.html#afa2dbc0f285d67cefe5fdc9193784672">m5::nfc::NFCLayerB::first_user_block</a></div><div class="ttdeci">virtual uint16_t first_user_block() const override</div><div class="ttdoc">First user block.</div><div class="ttdef"><b>Definition</b> nfc_layer_b.hpp:166</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1_n_f_c_layer_interface_html"><div class="ttname"><a href="classm5_1_1nfc_1_1_n_f_c_layer_interface.html">m5::nfc::NFCLayerInterface</a></div><div class="ttdoc">Common interface for NFC layer.</div><div class="ttdef"><b>Definition</b> nfc_layer.hpp:26</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1isodep_1_1_iso_d_e_p_html"><div class="ttname"><a href="classm5_1_1nfc_1_1isodep_1_1_iso_d_e_p.html">m5::nfc::isodep::IsoDEP</a></div><div class="ttdoc">ISO Data Exchange Protocol.</div><div class="ttdef"><b>Definition</b> isoDEP.hpp:190</div></div>
<div class="ttc" id="aclassm5_1_1nfc_1_1ndef_1_1_n_d_e_f_layer_html"><div class="ttname"><a href="classm5_1_1nfc_1_1ndef_1_1_n_d_e_f_layer.html">m5::nfc::ndef::NDEFLayer</a></div><div class="ttdoc">NDEF operations layer.</div><div class="ttdef"><b>Definition</b> ndef_layer.hpp:35</div></div>
<div class="ttc" id="aclassm5_1_1unit_1_1_cap_s_t25_r3916_html"><div class="ttname"><a href="classm5_1_1unit_1_1_cap_s_t25_r3916.html">m5::unit::CapST25R3916</a></div><div class="ttdoc">ST25R3916 unit in CapCC1101 (SPI)</div><div class="ttdef"><b>Definition</b> unit_ST25R3916.hpp:2062</div></div>
<div class="ttc" id="aclassm5_1_1unit_1_1_unit_s_t25_r3916_html"><div class="ttname"><a href="classm5_1_1unit_1_1_unit_s_t25_r3916.html">m5::unit::UnitST25R3916</a></div><div class="ttdoc">ST25R3916 Unit.</div><div class="ttdef"><b>Definition</b> unit_ST25R3916.hpp:38</div></div>
<div class="ttc" id="aiso_d_e_p_8hpp_html"><div class="ttname"><a href="iso_d_e_p_8hpp.html">isoDEP.hpp</a></div><div class="ttdoc">ISO Data Exchange Protocol.</div></div>
<div class="ttc" id="anamespacem5_html"><div class="ttname"><a href="namespacem5.html">m5</a></div><div class="ttdoc">Top level namespace of M5stack.</div></div>
<div class="ttc" id="anamespacenfc_html"><div class="ttname"><a href="namespacenfc.html">nfc</a></div><div class="ttdoc">NFC related definitions.</div></div>
<div class="ttc" id="anamespaceunit_html"><div class="ttname"><a href="namespaceunit.html">unit</a></div><div class="ttdoc">Unit-related namespace.</div></div>
<div class="ttc" id="andef__layer_8hpp_html"><div class="ttname"><a href="ndef__layer_8hpp.html">ndef_layer.hpp</a></div><div class="ttdoc">Common layer for NDEF related.</div></div>
<div class="ttc" id="anfc__layer_8hpp_html"><div class="ttname"><a href="nfc__layer_8hpp.html">nfc_layer.hpp</a></div><div class="ttdoc">Common layer for NFC related units.</div></div>
<div class="ttc" id="anfcb_8hpp_html"><div class="ttname"><a href="nfcb_8hpp.html">nfcb.hpp</a></div><div class="ttdoc">NFC-B definitions.</div></div>
<div class="ttc" id="anfcb_8hpp_html_aa906fade1b147b015c38f75b7f4a0fcd"><div class="ttname"><a href="nfcb_8hpp.html#aa906fade1b147b015c38f75b7f4a0fcd">m5::nfc::b::Require</a></div><div class="ttdeci">Require</div><div class="ttdoc">Number of slots required in the request/wakeup.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:39</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">m5::nfc::b::PICC</a></div><div class="ttdoc">PICC for NFC-B.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:99</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_a67d3842dce9b225cafb7d89e712ddc25"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a67d3842dce9b225cafb7d89e712ddc25">m5::nfc::b::PICC::valid</a></div><div class="ttdeci">bool valid() const</div><div class="ttdoc">Valid?</div><div class="ttdef"><b>Definition</b> nfcb.hpp:115</div></div>
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