190 lines
14 KiB
HTML
190 lines
14 KiB
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<div id="projectname">PicoVGA
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 <span id="projectnumber">1.2-cmake</span>
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<div id="projectbrief">VGA/TV display on Raspberry Pico</div>
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<a href="#var-members">Variables</a> </div>
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<div class="title">pwmsnd.h File Reference</div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">File Description</h2>
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<div class="textblock"><p>PWM sound output. </p>
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<dl class="section author"><dt>Author</dt><dd>Miroslav Nemecek <a href="#" onclick="location.href='mai'+'lto:'+'Pan'+'da'+'38@'+'se'+'zna'+'m.'+'cz'; return false;">Panda<span style="display: none;">.nosp@m.</span>38@s<span style="display: none;">.nosp@m.</span>eznam<span style="display: none;">.nosp@m.</span>.cz</a> </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__PWMGroup.html">PWM Audio</a> </dd></dl>
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<p><a href="pwmsnd_8h_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
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Macros</h2></td></tr>
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<tr class="memitem:ac2328dd6b9cf9676f62bc389ba199988"><td class="memItemLeft" align="right" valign="top"><a id="ac2328dd6b9cf9676f62bc389ba199988"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>PWMSND_GPIO</b>   19</td></tr>
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<tr class="separator:ac2328dd6b9cf9676f62bc389ba199988"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a00d6dc414eb6af8dc6b0db5414f13717"><td class="memItemLeft" align="right" valign="top"><a id="a00d6dc414eb6af8dc6b0db5414f13717"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>PWMSND_SLICE</b>   ((PWMSND_GPIO>>1)&7)</td></tr>
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<tr class="separator:a00d6dc414eb6af8dc6b0db5414f13717"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ac145742440bb45c5a582b49b08a79e02"><td class="memItemLeft" align="right" valign="top"><a id="ac145742440bb45c5a582b49b08a79e02"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>PWMSND_CHAN</b>   (PWMSND_GPIO&1)</td></tr>
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<tr class="separator:ac145742440bb45c5a582b49b08a79e02"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a58a3fea96512d81f539db07507a8f301"><td class="memItemLeft" align="right" valign="top"><a id="a58a3fea96512d81f539db07507a8f301"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>SOUNDRATE</b>   22050</td></tr>
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<tr class="separator:a58a3fea96512d81f539db07507a8f301"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4305d89f4c43ae22807fb7a4465892b1"><td class="memItemLeft" align="right" valign="top"><a id="a4305d89f4c43ae22807fb7a4465892b1"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>PWMSND_TOP</b>   255</td></tr>
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<tr class="separator:a4305d89f4c43ae22807fb7a4465892b1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a303815caa7194ff25089fd1fd0ebd383"><td class="memItemLeft" align="right" valign="top"><a id="a303815caa7194ff25089fd1fd0ebd383"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>PWMSND_CLOCK</b>   (SOUNDRATE*(PWMSND_TOP+1))</td></tr>
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<tr class="separator:a303815caa7194ff25089fd1fd0ebd383"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae24d7c0b06c55d8c29d46e1701c48a63"><td class="memItemLeft" align="right" valign="top"><a id="ae24d7c0b06c55d8c29d46e1701c48a63"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>SNDFRAC</b>   10</td></tr>
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<tr class="separator:ae24d7c0b06c55d8c29d46e1701c48a63"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1b2ec0a9fe8aef61e1c207e60c7761fa"><td class="memItemLeft" align="right" valign="top"><a id="a1b2ec0a9fe8aef61e1c207e60c7761fa"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>SNDINT</b>   (1<<SNDFRAC)</td></tr>
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<tr class="separator:a1b2ec0a9fe8aef61e1c207e60c7761fa"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga125653aeeb2dc605e83d0927a635983c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__PWMGroup.html#ga125653aeeb2dc605e83d0927a635983c">PWMSndInit</a> ()</td></tr>
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<tr class="memdesc:ga125653aeeb2dc605e83d0927a635983c"><td class="mdescLeft"> </td><td class="mdescRight">Initialize PWM sound output. <a href="group__PWMGroup.html#ga125653aeeb2dc605e83d0927a635983c">More...</a><br /></td></tr>
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<tr class="separator:ga125653aeeb2dc605e83d0927a635983c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7d7587ed33cbb0e94588c96735b5e6d5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__PWMGroup.html#ga7d7587ed33cbb0e94588c96735b5e6d5">PlaySound</a> (const u8 *snd, int len, Bool rep=False, float speed=1.0f)</td></tr>
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<tr class="memdesc:ga7d7587ed33cbb0e94588c96735b5e6d5"><td class="mdescLeft"> </td><td class="mdescRight">Output PWM sound. <a href="group__PWMGroup.html#ga7d7587ed33cbb0e94588c96735b5e6d5">More...</a><br /></td></tr>
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<tr class="separator:ga7d7587ed33cbb0e94588c96735b5e6d5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gace7ff7d9e5fec2fa9c349305e72f1503"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__PWMGroup.html#gace7ff7d9e5fec2fa9c349305e72f1503">StopSound</a> ()</td></tr>
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<tr class="memdesc:gace7ff7d9e5fec2fa9c349305e72f1503"><td class="mdescLeft"> </td><td class="mdescRight">stop playing sound <a href="group__PWMGroup.html#gace7ff7d9e5fec2fa9c349305e72f1503">More...</a><br /></td></tr>
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<tr class="separator:gace7ff7d9e5fec2fa9c349305e72f1503"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa69a3c0ca6e5f20455ef1e60c2ea7b31"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__PWMGroup.html#gaa69a3c0ca6e5f20455ef1e60c2ea7b31">SpeedSound</a> (float speed)</td></tr>
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<tr class="memdesc:gaa69a3c0ca6e5f20455ef1e60c2ea7b31"><td class="mdescLeft"> </td><td class="mdescRight">Update sound speed. <a href="group__PWMGroup.html#gaa69a3c0ca6e5f20455ef1e60c2ea7b31">More...</a><br /></td></tr>
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<tr class="separator:gaa69a3c0ca6e5f20455ef1e60c2ea7b31"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac5cdc29178dd50bc69a6925a6af5c84a"><td class="memItemLeft" align="right" valign="top">
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Bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__PWMGroup.html#gac5cdc29178dd50bc69a6925a6af5c84a">PlayingSound</a> ()</td></tr>
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<tr class="memdesc:gac5cdc29178dd50bc69a6925a6af5c84a"><td class="mdescLeft"> </td><td class="mdescRight">Check if playing sound. <br /></td></tr>
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<tr class="separator:gac5cdc29178dd50bc69a6925a6af5c84a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaf9f5fbc637ae75e22d2f628cbfd9b665"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__PWMGroup.html#gaf9f5fbc637ae75e22d2f628cbfd9b665">SetNextSound</a> (const u8 *snd, int len)</td></tr>
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<tr class="memdesc:gaf9f5fbc637ae75e22d2f628cbfd9b665"><td class="mdescLeft"> </td><td class="mdescRight">Set the next sound to play. <a href="group__PWMGroup.html#gaf9f5fbc637ae75e22d2f628cbfd9b665">More...</a><br /></td></tr>
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<tr class="separator:gaf9f5fbc637ae75e22d2f628cbfd9b665"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
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Variables</h2></td></tr>
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<tr class="memitem:af2362264a6496bd608fedc8cf9ca639a"><td class="memItemLeft" align="right" valign="top"><a id="af2362264a6496bd608fedc8cf9ca639a"></a>
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const u8 * </td><td class="memItemRight" valign="bottom"><b>CurSound</b></td></tr>
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<tr class="separator:af2362264a6496bd608fedc8cf9ca639a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a84a93db0a4742999691ab24cca6f5b3b"><td class="memItemLeft" align="right" valign="top"><a id="a84a93db0a4742999691ab24cca6f5b3b"></a>
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volatile int </td><td class="memItemRight" valign="bottom"><b>SoundCnt</b></td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>SoundInc</b></td></tr>
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<tr class="memitem:af5133a0c870e6dbc6988427f04b0f8b4"><td class="memItemLeft" align="right" valign="top"><a id="af5133a0c870e6dbc6988427f04b0f8b4"></a>
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volatile int </td><td class="memItemRight" valign="bottom"><b>SoundAcc</b></td></tr>
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const u8 * </td><td class="memItemRight" valign="bottom"><b>NextSound</b></td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>NextSoundCnt</b></td></tr>
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