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<a href="nfcb_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="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#ifndef M5_UNIT_UNIFIED_NFC_NFC_B_NFCB_HPP</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#define M5_UNIT_UNIFIED_NFC_NFC_B_NFCB_HPP</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> </div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &quot;<a class="code" href="nfc_8hpp.html">nfc/nfc.hpp</a>&quot;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;cstdint&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &lt;cstring&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacem5.html">m5</a> {</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacenfc.html">nfc</a> {</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceb.html">b</a> {</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="foldopen" id="foldopen00030" data-start="{" data-end="};">
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#a6aa79586df8f19ed0e9a839d7d2ca0cb"> 30</a></span><span class="keyword">enum class</span> <a class="code hl_enumeration" href="nfcb_8hpp.html#a6aa79586df8f19ed0e9a839d7d2ca0cb">Type</a> : uint8_t {</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> Unknown, </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <a class="code hl_enumvalue" href="nfcb_8hpp.html#a6aa79586df8f19ed0e9a839d7d2ca0cba3336022d50ad5765c5db6964d942f5e1">Unclassified</a>, </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span>};</div>
</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="nfcb_8hpp.html#aa906fade1b147b015c38f75b7f4a0fcd"> 39</a></span><span class="keyword">enum class</span> <a class="code hl_enumeration" href="nfcb_8hpp.html#aa906fade1b147b015c38f75b7f4a0fcd">Require</a> : uint8_t {</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> Slot1,</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> Slot2,</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> Slot4,</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> Slot8,</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> Slot16,</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>};</div>
</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#a9cbb42aa665db121b23fc1097c741b41"> 47</a></span><span class="keyword">constexpr</span> uint8_t <a class="code hl_variable" href="nfcb_8hpp.html#a9cbb42aa665db121b23fc1097c741b41">ATQB_LENGTH</a>{11}; </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SAME_SPEED{0x80};</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SPPED_106K{0X00};</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SPPED_212K_FROM_PICC{0X10};</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SPPED_424K_FROM_PICC{0X20};</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SPPED_847K_FROM_PICC{0X40};</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SPPED_212K_TO_PICC{0X01};</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SPPED_424K_TO_PICC{0X02};</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="keyword">constexpr</span> uint8_t COMMUNICATION_SPPED_847K_TO_PICC{0X04};</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="keyword">const</span> uint8_t FRAME_OPTION_NAD{0x02};</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="keyword">const</span> uint8_t FRAME_OPTION_CID{0x01};</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span>uint16_t <a class="code hl_function" href="nfcb_8cpp.html#af1d62bed3e0436e8c41b431303432a00">maximum_frame_length</a>(<span class="keyword">const</span> uint8_t protocol[3]);</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="foldopen" id="foldopen00072" data-start="{" data-end="}">
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#ac5a5d80ef3490cda922538211023db99"> 72</a></span><span class="keyword">inline</span> uint8_t <a class="code hl_function" href="nfcb_8hpp.html#ac5a5d80ef3490cda922538211023db99">maximum_frame_length_bits</a>(<span class="keyword">const</span> uint8_t protocol[3])</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span>{</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">return</span> protocol ? protocol[1] &gt;&gt; 4 : 0x0F;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span>}</div>
</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="foldopen" id="foldopen00078" data-start="{" data-end="}">
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#a9c051e67a823a3666937bfa9b003d45f"> 78</a></span><span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="nfcb_8hpp.html#a9c051e67a823a3666937bfa9b003d45f">supports_iso14443_4</a>(<span class="keyword">const</span> uint8_t protocol[3])</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span>{</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">return</span> protocol ? ((protocol[1] &amp; 0x0F) &amp; 0x01) : <span class="keyword">false</span>;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span>}</div>
</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="foldopen" id="foldopen00084" data-start="{" data-end="}">
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#a1343a19de345d27d6e04966318ab2a38"> 84</a></span><span class="keyword">inline</span> uint8_t <a class="code hl_function" href="nfcb_8hpp.html#a1343a19de345d27d6e04966318ab2a38">get_frame_option</a>(<span class="keyword">const</span> uint8_t protocol[3])</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>{</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">return</span> protocol ? (protocol[2] &amp; 0x03) : 0x00;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span>}</div>
</div>
<div class="foldopen" id="foldopen00089" data-start="{" data-end="}">
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#ac471991e55ecc4ecd3daace0720ec4ba"> 89</a></span><span class="keyword">inline</span> uint8_t <a class="code hl_function" href="nfcb_8hpp.html#ac471991e55ecc4ecd3daace0720ec4ba">get_fwi</a>(<span class="keyword">const</span> uint8_t protocol[3])</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> protocol ? ((protocol[2] &gt;&gt; 4) &amp; 0x0F) : 0x0F <span class="comment">/*RFU*/</span>;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span>}</div>
</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="foldopen" id="foldopen00099" data-start="{" data-end="};">
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html"> 99</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">PICC</a> {</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> uint8_t uid[8]{};</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">union </span>{</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a0252e34d67f8ae056b7ecc811f9b68ec"> 102</a></span> uint8_t <a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a0252e34d67f8ae056b7ecc811f9b68ec">atqb</a>[<a class="code hl_variable" href="nfcb_8hpp.html#a9cbb42aa665db121b23fc1097c741b41">ATQB_LENGTH</a>]{}; </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">struct </span>{</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ae3e1adb868ee8822a21be9a140f852c8"> 104</a></span> uint8_t <a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ae3e1adb868ee8822a21be9a140f852c8">pupi</a>[4]; </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a5412e31da035eff9e65bffa3b8eed91c"> 105</a></span> uint8_t <a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a5412e31da035eff9e65bffa3b8eed91c">application</a>[4]; </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9"> 106</a></span> uint8_t <a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>[3]; </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// uint8_t cid[1];</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> } __attribute__((packed));</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> } __attribute__((packed));</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ae26c005a7ef1c7640e119ea311dc1bc9"> 110</a></span> <a class="code hl_enumeration" href="nfcb_8hpp.html#a6aa79586df8f19ed0e9a839d7d2ca0cb">Type</a> <a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ae26c005a7ef1c7640e119ea311dc1bc9">type</a>{Type::Unknown}; </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a327f3caf6e1bfca0542d268969bb2ad6"> 111</a></span> uint8_t <a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a327f3caf6e1bfca0542d268969bb2ad6">cid</a>{}; </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> uint8_t option{};</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="foldopen" id="foldopen00115" data-start="{" data-end="}">
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a67d3842dce9b225cafb7d89e712ddc25"> 115</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a67d3842dce9b225cafb7d89e712ddc25">valid</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a7d8d9bd5c71fedb940098e2b5b6530ac">isISO14443_4</a>();</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> }</div>
</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> std::string <a class="code hl_function" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a3851bbb69376426d24e43174e85048d9">pupiAsString</a>() <span class="keyword">const</span>; </div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> std::string <a class="code hl_function" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a12e00acfe9513ea113749e52ea2d5f05">typeAsString</a>() <span class="keyword">const</span>; </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="foldopen" id="foldopen00126" data-start="{" data-end="}">
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"><a class="line" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a7d8d9bd5c71fedb940098e2b5b6530ac"> 126</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a7d8d9bd5c71fedb940098e2b5b6530ac">isISO14443_4</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">return</span> <a class="code hl_function" href="nfcb_8hpp.html#a9c051e67a823a3666937bfa9b003d45f">supports_iso14443_4</a>(<a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> }</div>
</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="keyword">inline</span> <span class="keywordtype">bool</span> supportsNAD()<span class="keyword"> const</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">return</span> <a class="code hl_function" href="nfcb_8hpp.html#a1343a19de345d27d6e04966318ab2a38">get_frame_option</a>(<a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>) &amp; FRAME_OPTION_NAD;</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> }</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> supportsCID()<span class="keyword"> const</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordflow">return</span> get_frame_option(<a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>) &amp; FRAME_OPTION_CID;</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="keyword">inline</span> uint16_t maximumFrameLength()<span class="keyword"> const</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">return</span> maximum_frame_length(<a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> }</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">inline</span> uint8_t maximumFrameLengthBits()<span class="keyword"> const</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">return</span> maximum_frame_length_bits(<a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>);</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> }</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">inline</span> uint8_t communicationSpeed()<span class="keyword"> const</span></div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>[0];</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">inline</span> uint8_t fwi()<span class="keyword"> const</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">return</span> <a class="code hl_function" href="nfcb_8hpp.html#ac471991e55ecc4ecd3daace0720ec4ba">get_fwi</a>(<a class="code hl_variable" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">protocol</a>);</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> }</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span>};</div>
</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </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="nfcb_8hpp.html#a2bfee8da3fdce40cdd70ebb5eaaf0dc3"> 162</a></span><span class="keyword">inline</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">PICC</a>&amp; <a class="code hl_namespace" href="namespacea.html">a</a>, <span class="keyword">const</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">PICC</a>&amp; <a class="code hl_namespace" href="namespaceb.html">b</a>)</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span>{</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">return</span> std::memcmp(<a class="code hl_namespace" href="namespacea.html">a</a>.atqb, <a class="code hl_namespace" href="namespaceb.html">b</a>.atqb, <span class="keyword">sizeof</span>(<a class="code hl_namespace" href="namespacea.html">a</a>.atqb)) == 0;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span>}</div>
</div>
<div class="foldopen" id="foldopen00167" data-start="{" data-end="}">
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#ac3bd576be01a287cbdf7d6f6ff7d59f2"> 167</a></span><span class="keyword">inline</span> <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">PICC</a>&amp; <a class="code hl_namespace" href="namespacea.html">a</a>, <span class="keyword">const</span> <a class="code hl_struct" href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html">PICC</a>&amp; <a class="code hl_namespace" href="namespaceb.html">b</a>)</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span>{</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">return</span> !(<a class="code hl_namespace" href="namespacea.html">a</a> == <a class="code hl_namespace" href="namespaceb.html">b</a>);</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span>}</div>
</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="foldopen" id="foldopen00176" data-start="{" data-end="};">
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"><a class="line" href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8c"> 176</a></span><span class="keyword">enum class</span> <a class="code hl_enumeration" href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8c">Command</a> : uint8_t {</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// ISO/IEC 14443B</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <a class="code hl_enumvalue" href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8cacf8fbe52b35ccf31d879b73fa27243af">REQ_WUPB</a> = 0x05, </div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <a class="code hl_enumvalue" href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8caa7e69c53dafaa5a0100d3d1ba0f7cb6c">ATTRIB</a> = 0x1D, </div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <a class="code hl_enumvalue" href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8ca64f2b46f660a112d2cc1a68e522cb0e0">HLTB</a> = 0x50, </div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="comment">// ISO/IEC 14443-4</span></div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> DESELECT = 0xC2, </div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <a class="code hl_enumvalue" href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8cae86ed6981f29d2df796b5eb1eda2f3e8">DESELECT_WITH_CID</a> = 0xCA, </div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span>};</div>
</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> </div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span><span class="keyword">constexpr</span> uint32_t TIMEOUT_REQ_WUP_B{5};</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span><span class="keyword">constexpr</span> uint32_t TIMEOUT_ATTRIB{50};</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span><span class="keyword">constexpr</span> uint32_t TIMEOUT_HLTB{5};</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span><span class="keyword">constexpr</span> uint32_t TIMEOUT_DESELECT{5};</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>} <span class="comment">// namespace b</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span>} <span class="comment">// namespace nfc</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span>} <span class="comment">// namespace m5</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="anamespacea_html"><div class="ttname"><a href="namespacea.html">a</a></div><div class="ttdoc">NFC-A definitions.</div></div>
<div class="ttc" id="anamespaceb_html"><div class="ttname"><a href="namespaceb.html">b</a></div><div class="ttdoc">NFC-B definitions.</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="anfc_8hpp_html"><div class="ttname"><a href="nfc_8hpp.html">nfc.hpp</a></div><div class="ttdoc">NFC definitions.</div></div>
<div class="ttc" id="anfcb_8cpp_html_af1d62bed3e0436e8c41b431303432a00"><div class="ttname"><a href="nfcb_8cpp.html#af1d62bed3e0436e8c41b431303432a00">m5::nfc::b::maximum_frame_length</a></div><div class="ttdeci">uint16_t maximum_frame_length(const uint8_t protocol[3])</div><div class="ttdoc">Get maximum frame length from protocol bytes.</div><div class="ttdef"><b>Definition</b> nfcb.cpp:36</div></div>
<div class="ttc" id="anfcb_8hpp_html_a1343a19de345d27d6e04966318ab2a38"><div class="ttname"><a href="nfcb_8hpp.html#a1343a19de345d27d6e04966318ab2a38">m5::nfc::b::get_frame_option</a></div><div class="ttdeci">uint8_t get_frame_option(const uint8_t protocol[3])</div><div class="ttdoc">Gets the frame option bits.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:84</div></div>
<div class="ttc" id="anfcb_8hpp_html_a6aa79586df8f19ed0e9a839d7d2ca0cb"><div class="ttname"><a href="nfcb_8hpp.html#a6aa79586df8f19ed0e9a839d7d2ca0cb">m5::nfc::b::Type</a></div><div class="ttdeci">Type</div><div class="ttdoc">Type of the PICC.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:30</div></div>
<div class="ttc" id="anfcb_8hpp_html_a6aa79586df8f19ed0e9a839d7d2ca0cba3336022d50ad5765c5db6964d942f5e1"><div class="ttname"><a href="nfcb_8hpp.html#a6aa79586df8f19ed0e9a839d7d2ca0cba3336022d50ad5765c5db6964d942f5e1">m5::nfc::b::Type::Unclassified</a></div><div class="ttdeci">@ Unclassified</div><div class="ttdoc">Unclassified.</div></div>
<div class="ttc" id="anfcb_8hpp_html_a9c051e67a823a3666937bfa9b003d45f"><div class="ttname"><a href="nfcb_8hpp.html#a9c051e67a823a3666937bfa9b003d45f">m5::nfc::b::supports_iso14443_4</a></div><div class="ttdeci">bool supports_iso14443_4(const uint8_t protocol[3])</div><div class="ttdoc">Supports ISO/IEC 14443-4?</div><div class="ttdef"><b>Definition</b> nfcb.hpp:78</div></div>
<div class="ttc" id="anfcb_8hpp_html_a9cbb42aa665db121b23fc1097c741b41"><div class="ttname"><a href="nfcb_8hpp.html#a9cbb42aa665db121b23fc1097c741b41">m5::nfc::b::ATQB_LENGTH</a></div><div class="ttdeci">constexpr uint8_t ATQB_LENGTH</div><div class="ttdoc">ATQB length pupi(4) + application(4) + protocol(3)</div><div class="ttdef"><b>Definition</b> nfcb.hpp:47</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="anfcb_8hpp_html_ac471991e55ecc4ecd3daace0720ec4ba"><div class="ttname"><a href="nfcb_8hpp.html#ac471991e55ecc4ecd3daace0720ec4ba">m5::nfc::b::get_fwi</a></div><div class="ttdeci">uint8_t get_fwi(const uint8_t protocol[3])</div><div class="ttdoc">Gets the FWI.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:89</div></div>
<div class="ttc" id="anfcb_8hpp_html_ac5a5d80ef3490cda922538211023db99"><div class="ttname"><a href="nfcb_8hpp.html#ac5a5d80ef3490cda922538211023db99">m5::nfc::b::maximum_frame_length_bits</a></div><div class="ttdeci">uint8_t maximum_frame_length_bits(const uint8_t protocol[3])</div><div class="ttdoc">Get maximum frame length from protocol bytes.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:72</div></div>
<div class="ttc" id="anfcb_8hpp_html_ae2a856e80084be96e7eab93c4007af8c"><div class="ttname"><a href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8c">m5::nfc::b::Command</a></div><div class="ttdeci">Command</div><div class="ttdoc">ISO/IEC 14443 Type B command (Layer 3 / activation)</div><div class="ttdef"><b>Definition</b> nfcb.hpp:176</div></div>
<div class="ttc" id="anfcb_8hpp_html_ae2a856e80084be96e7eab93c4007af8ca64f2b46f660a112d2cc1a68e522cb0e0"><div class="ttname"><a href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8ca64f2b46f660a112d2cc1a68e522cb0e0">m5::nfc::b::Command::HLTB</a></div><div class="ttdeci">@ HLTB</div><div class="ttdoc">Halt Type B (rarely used)</div></div>
<div class="ttc" id="anfcb_8hpp_html_ae2a856e80084be96e7eab93c4007af8caa7e69c53dafaa5a0100d3d1ba0f7cb6c"><div class="ttname"><a href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8caa7e69c53dafaa5a0100d3d1ba0f7cb6c">m5::nfc::b::Command::ATTRIB</a></div><div class="ttdeci">@ ATTRIB</div><div class="ttdoc">Attribute (activate ISO-DEP)</div></div>
<div class="ttc" id="anfcb_8hpp_html_ae2a856e80084be96e7eab93c4007af8cacf8fbe52b35ccf31d879b73fa27243af"><div class="ttname"><a href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8cacf8fbe52b35ccf31d879b73fa27243af">m5::nfc::b::Command::REQ_WUPB</a></div><div class="ttdeci">@ REQ_WUPB</div><div class="ttdoc">Request/Wakeup Type B.</div></div>
<div class="ttc" id="anfcb_8hpp_html_ae2a856e80084be96e7eab93c4007af8cae86ed6981f29d2df796b5eb1eda2f3e8"><div class="ttname"><a href="nfcb_8hpp.html#ae2a856e80084be96e7eab93c4007af8cae86ed6981f29d2df796b5eb1eda2f3e8">m5::nfc::b::Command::DESELECT_WITH_CID</a></div><div class="ttdeci">@ DESELECT_WITH_CID</div><div class="ttdoc">DESELECT with CID.</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_a0252e34d67f8ae056b7ecc811f9b68ec"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a0252e34d67f8ae056b7ecc811f9b68ec">m5::nfc::b::PICC::atqb</a></div><div class="ttdeci">uint8_t atqb[ATQB_LENGTH]</div><div class="ttdoc">ATQB.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:102</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_a12e00acfe9513ea113749e52ea2d5f05"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a12e00acfe9513ea113749e52ea2d5f05">m5::nfc::b::PICC::typeAsString</a></div><div class="ttdeci">std::string typeAsString() const</div><div class="ttdoc">Gets the type string.</div><div class="ttdef"><b>Definition</b> nfcb.cpp:55</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_a327f3caf6e1bfca0542d268969bb2ad6"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a327f3caf6e1bfca0542d268969bb2ad6">m5::nfc::b::PICC::cid</a></div><div class="ttdeci">uint8_t cid</div><div class="ttdoc">CID;.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:111</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_a3851bbb69376426d24e43174e85048d9"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a3851bbb69376426d24e43174e85048d9">m5::nfc::b::PICC::pupiAsString</a></div><div class="ttdeci">std::string pupiAsString() const</div><div class="ttdoc">Gets the pupi string.</div><div class="ttdef"><b>Definition</b> nfcb.cpp:45</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_a5412e31da035eff9e65bffa3b8eed91c"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a5412e31da035eff9e65bffa3b8eed91c">m5::nfc::b::PICC::application</a></div><div class="ttdeci">uint8_t application[4]</div><div class="ttdoc">Application Data.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:105</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>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_a7d8d9bd5c71fedb940098e2b5b6530ac"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#a7d8d9bd5c71fedb940098e2b5b6530ac">m5::nfc::b::PICC::isISO14443_4</a></div><div class="ttdeci">bool isISO14443_4() const</div><div class="ttdoc">ISO14443-4?</div><div class="ttdef"><b>Definition</b> nfcb.hpp:126</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_ad41073dd71001ab521af81aa03a515a9"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ad41073dd71001ab521af81aa03a515a9">m5::nfc::b::PICC::protocol</a></div><div class="ttdeci">uint8_t protocol[3]</div><div class="ttdoc">Protocol information.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:106</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_ae26c005a7ef1c7640e119ea311dc1bc9"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ae26c005a7ef1c7640e119ea311dc1bc9">m5::nfc::b::PICC::type</a></div><div class="ttdeci">Type type</div><div class="ttdoc">Type.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:110</div></div>
<div class="ttc" id="astructm5_1_1nfc_1_1b_1_1_p_i_c_c_html_ae3e1adb868ee8822a21be9a140f852c8"><div class="ttname"><a href="structm5_1_1nfc_1_1b_1_1_p_i_c_c.html#ae3e1adb868ee8822a21be9a140f852c8">m5::nfc::b::PICC::pupi</a></div><div class="ttdeci">uint8_t pupi[4]</div><div class="ttdoc">Pseudo-Unique PICC Identifier.</div><div class="ttdef"><b>Definition</b> nfcb.hpp:104</div></div>
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