462 lines
24 KiB
HTML
462 lines
24 KiB
HTML
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<div id="projectname">ESP32-WROVER-KIT-LCD-DRIVER
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<div class="title">LCD.c File Reference</div> </div>
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<p>sets and writes framebuffer
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include "<a class="el" href="_l_c_d_8h_source.html">LCD.h</a>"</code><br />
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<code>#include "<a class="el" href="_driver_8h_source.html">Driver.h</a>"</code><br />
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</div><div class="textblock"><div class="dynheader">
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Include dependency graph for LCD.c:</div>
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</div><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:a13ff792cd544fe043593ceb2a8150c3c"><td class="memItemLeft" align="right" valign="top">esp_err_t </td><td class="memItemRight" valign="bottom"><a class="el" href="_l_c_d_8c.html#a13ff792cd544fe043593ceb2a8150c3c">iLCD_allocateFramebuffer</a> (uint16_t ***pData)</td></tr>
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<tr class="memdesc:a13ff792cd544fe043593ceb2a8150c3c"><td class="mdescLeft"> </td><td class="mdescRight">allocate framebuffer <a href="_l_c_d_8c.html#a13ff792cd544fe043593ceb2a8150c3c">More...</a><br /></td></tr>
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<tr class="separator:a13ff792cd544fe043593ceb2a8150c3c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3797f0f021c102d4f15fdbb57167a04c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="_l_c_d_8c.html#a3797f0f021c102d4f15fdbb57167a04c">vLCD_writeChar</a> (uint16_t u16xPos, uint16_t u16yPos, char cCharacter, uint16_t u16ColorFont, uint16_t u16ColorBackground)</td></tr>
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<tr class="memdesc:a3797f0f021c102d4f15fdbb57167a04c"><td class="mdescLeft"> </td><td class="mdescRight">write string/text into framebuffer <a href="_l_c_d_8c.html#a3797f0f021c102d4f15fdbb57167a04c">More...</a><br /></td></tr>
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<tr class="separator:a3797f0f021c102d4f15fdbb57167a04c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4d0719889f64bf0c82dd5adc3a26adf3"><td class="memItemLeft" align="right" valign="top">esp_err_t </td><td class="memItemRight" valign="bottom"><a class="el" href="_l_c_d_8c.html#a4d0719889f64bf0c82dd5adc3a26adf3">iLCD_init</a> (void)</td></tr>
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<tr class="memdesc:a4d0719889f64bf0c82dd5adc3a26adf3"><td class="mdescLeft"> </td><td class="mdescRight">init <a href="_l_c_d_8c.html#a4d0719889f64bf0c82dd5adc3a26adf3">More...</a><br /></td></tr>
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<tr class="separator:a4d0719889f64bf0c82dd5adc3a26adf3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a95f7c4fb0d7de1cb623b52031aad3fe8"><td class="memItemLeft" align="right" valign="top">esp_err_t </td><td class="memItemRight" valign="bottom"><a class="el" href="_l_c_d_8c.html#a95f7c4fb0d7de1cb623b52031aad3fe8">iLCD_clearFramebuffer</a> (uint16_t u16Color)</td></tr>
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<tr class="memdesc:a95f7c4fb0d7de1cb623b52031aad3fe8"><td class="mdescLeft"> </td><td class="mdescRight">clear complete framebuffer with a color <a href="_l_c_d_8c.html#a95f7c4fb0d7de1cb623b52031aad3fe8">More...</a><br /></td></tr>
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<tr class="separator:a95f7c4fb0d7de1cb623b52031aad3fe8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a305dd37530a1617090bbc448e2e40d26"><td class="memItemLeft" align="right" valign="top">esp_err_t </td><td class="memItemRight" valign="bottom"><a class="el" href="_l_c_d_8c.html#a305dd37530a1617090bbc448e2e40d26">iLCD_writeString</a> (uint16_t u16xPos, uint16_t u16yPos, char *pcText, uint16_t u16ColorFont, uint16_t u16ColorBackground)</td></tr>
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<tr class="memdesc:a305dd37530a1617090bbc448e2e40d26"><td class="mdescLeft"> </td><td class="mdescRight">write string/text into framebuffer <a href="_l_c_d_8c.html#a305dd37530a1617090bbc448e2e40d26">More...</a><br /></td></tr>
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<tr class="separator:a305dd37530a1617090bbc448e2e40d26"><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:a1cf4497f1e3b602bc54e6f42ea73d9ed"><td class="memItemLeft" align="right" valign="top">uint16_t ** </td><td class="memItemRight" valign="bottom"><a class="el" href="_l_c_d_8c.html#a1cf4497f1e3b602bc54e6f42ea73d9ed">pu16Framebuffer</a></td></tr>
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<tr class="separator:a1cf4497f1e3b602bc54e6f42ea73d9ed"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9826a9caf383930481887a5b11a8426d"><td class="memItemLeft" align="right" valign="top">static const uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="_l_c_d_8c.html#a9826a9caf383930481887a5b11a8426d">font6_8</a> [][6]</td></tr>
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<tr class="separator:a9826a9caf383930481887a5b11a8426d"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>sets and writes framebuffer </p>
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<dl class="section author"><dt>Author</dt><dd>Hendrik Schutter </dd></dl>
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<dl class="section version"><dt>Version</dt><dd>V1.0 </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>03.11.2020</dd></dl>
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<p>This code displays graphics on the 320x240 LCD on an ESP-WROVER_KIT board.</p>
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<p>Some info about the ILI9341/ST7789V: It has an C/D line, which is connected to a GPIO here. It expects this line to be low for a command and high for data. We use a pre-transmit callback here to control that line: every transaction has as the user-definable argument the needed state of the D/C line and just before the transaction is sent, the callback will set this line to the correct state. </p>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a id="a13ff792cd544fe043593ceb2a8150c3c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a13ff792cd544fe043593ceb2a8150c3c">◆ </a></span>iLCD_allocateFramebuffer()</h2>
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<td class="memname">esp_err_t iLCD_allocateFramebuffer </td>
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<td>(</td>
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<td class="paramtype">uint16_t *** </td>
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<td class="paramname"><em>pData</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>allocate framebuffer </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">pointer</td><td>of framebuffer two dimensional array </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>esp error code </dd></dl>
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<dl class="section author"><dt>Author</dt><dd>Hendrik Schutter </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>3.11.2020 </dd></dl>
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Here is the caller graph for this function:</div>
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<div class="center"><img src="_l_c_d_8c_a13ff792cd544fe043593ceb2a8150c3c_icgraph.png" border="0" usemap="#a_l_c_d_8c_a13ff792cd544fe043593ceb2a8150c3c_icgraph" alt=""/></div>
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<a id="a95f7c4fb0d7de1cb623b52031aad3fe8"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a95f7c4fb0d7de1cb623b52031aad3fe8">◆ </a></span>iLCD_clearFramebuffer()</h2>
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<td class="memname">esp_err_t iLCD_clearFramebuffer </td>
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<td>(</td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16Color</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>clear complete framebuffer with a color </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">RGB586</td><td>color code </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>esp error code </dd></dl>
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<dl class="section author"><dt>Author</dt><dd>Hendrik Schutter </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>3.11.2020 </dd></dl>
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Here is the call graph for this function:</div>
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<div class="center"><img src="_l_c_d_8c_a95f7c4fb0d7de1cb623b52031aad3fe8_cgraph.png" border="0" usemap="#a_l_c_d_8c_a95f7c4fb0d7de1cb623b52031aad3fe8_cgraph" alt=""/></div>
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<a id="a4d0719889f64bf0c82dd5adc3a26adf3"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a4d0719889f64bf0c82dd5adc3a26adf3">◆ </a></span>iLCD_init()</h2>
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<td class="memname">esp_err_t iLCD_init </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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<p>init </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">void</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>int </dd></dl>
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<dl class="section author"><dt>Author</dt><dd>Hendrik Schutter </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>3.11.2020 </dd></dl>
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Here is the call graph for this function:</div>
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<div class="center"><img src="_l_c_d_8c_a4d0719889f64bf0c82dd5adc3a26adf3_cgraph.png" border="0" usemap="#a_l_c_d_8c_a4d0719889f64bf0c82dd5adc3a26adf3_cgraph" alt=""/></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a305dd37530a1617090bbc448e2e40d26">◆ </a></span>iLCD_writeString()</h2>
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<td class="memname">esp_err_t iLCD_writeString </td>
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<td>(</td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16xPos</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16yPos</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">char * </td>
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<td class="paramname"><em>pcText</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16ColorFont</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16ColorBackground</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>write string/text into framebuffer </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">uint16_t</td><td>u16xPos </td></tr>
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<tr><td class="paramname">uint16_t</td><td>u16yPos </td></tr>
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<tr><td class="paramname">char</td><td>*pcText </td></tr>
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<tr><td class="paramname">RGB586</td><td>color code for font uint16_t u16ColorFont </td></tr>
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<tr><td class="paramname">RGB586</td><td>color code for background uint16_t u16ColorBackground </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>esp error code </dd></dl>
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<dl class="section author"><dt>Author</dt><dd>Hendrik Schutter </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>4.11.2020 </dd></dl>
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<div class="center"><img src="_l_c_d_8c_a305dd37530a1617090bbc448e2e40d26_cgraph.png" border="0" usemap="#a_l_c_d_8c_a305dd37530a1617090bbc448e2e40d26_cgraph" alt=""/></div>
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<map name="_l_c_d_8c_a305dd37530a1617090bbc448e2e40d26_cgraph" id="a_l_c_d_8c_a305dd37530a1617090bbc448e2e40d26_cgraph">
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<area shape="rect" title="write string/text into framebuffer" alt="" coords="5,81,127,108"/>
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<area shape="rect" href="_driver_8h.html#a62a79453d5cfaf0693a21714162f22d4" title="write framebuffer to LCD via SPI" alt="" coords="175,56,339,83"/>
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<area shape="rect" href="_driver_8c.html#a3d6cd2f0685caf993fd7455dd100dd7c" title="send finish after line" alt="" coords="411,5,564,32"/>
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<area shape="rect" href="_driver_8c.html#ab611c2d5911c284b757197882ea227be" title="send line to lcd chip" alt="" coords="425,56,550,83"/>
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<area shape="rect" href="_driver_8c.html#a3ce1541687c13e00a1cc1d4d7ff564aa" title="Get the pixel data for a set of lines (with implied line size of 320)" alt="" coords="387,107,588,133"/>
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<h2 class="memtitle"><span class="permalink"><a href="#a3797f0f021c102d4f15fdbb57167a04c">◆ </a></span>vLCD_writeChar()</h2>
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<td class="memname">void vLCD_writeChar </td>
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<td>(</td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16xPos</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16yPos</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">char </td>
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<td class="paramname"><em>cCharacter</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16ColorFont</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>u16ColorBackground</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>write string/text into framebuffer </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">uint16_t</td><td>u16xPos </td></tr>
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<tr><td class="paramname">uint16_t</td><td>u16yPos </td></tr>
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<tr><td class="paramname">char</td><td>cCharacter </td></tr>
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<tr><td class="paramname">RGB586</td><td>color code for font uint16_t u16ColorFont </td></tr>
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<tr><td class="paramname">RGB586</td><td>color code for background uint16_t u16ColorBackground </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>esp error code </dd></dl>
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<dl class="section author"><dt>Author</dt><dd>Hendrik Schutter </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>4.11.2020 </dd></dl>
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<map name="_l_c_d_8c_a3797f0f021c102d4f15fdbb57167a04c_icgraph" id="a_l_c_d_8c_a3797f0f021c102d4f15fdbb57167a04c_icgraph">
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<area shape="rect" title="write string/text into framebuffer" alt="" coords="175,5,293,32"/>
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<area shape="rect" href="_l_c_d_8c.html#a305dd37530a1617090bbc448e2e40d26" title="write string/text into framebuffer" alt="" coords="5,5,127,32"/>
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</div>
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</div>
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</div>
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<h2 class="groupheader">Variable Documentation</h2>
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<a id="a9826a9caf383930481887a5b11a8426d"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a9826a9caf383930481887a5b11a8426d">◆ </a></span>font6_8</h2>
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<td class="memname">const uint8_t font6_8[][6]</td>
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</table>
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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">static</span></span> </td>
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<a id="a1cf4497f1e3b602bc54e6f42ea73d9ed"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a1cf4497f1e3b602bc54e6f42ea73d9ed">◆ </a></span>pu16Framebuffer</h2>
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<td class="memname">uint16_t** pu16Framebuffer</td>
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</table>
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