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95 lines
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<div id="projectname">SSD1306 OLED display driver
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 <span id="projectnumber">1.8.2</span>
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<div id="projectbrief">This library is developed to control SSD1306/SSD1331/SSD1351/IL9163/PCD8554 RGB i2c/spi LED displays</div>
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<li class="navelem"><a class="el" href="dir_79dd6902ba1de7f614a2c98c3be1d0c9.html">intf</a></li><li class="navelem"><a class="el" href="dir_319271fb26ef8c7ad84b6c95e9e43893.html">i2c</a></li> </ul>
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<div class="title">ssd1306_i2c_embedded.c</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> MIT License</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"></span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright (c) 2016-2018, Alexey Dynda</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission is hereby granted, free of charge, to any person obtaining a copy</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> of this software and associated documentation files (the "Software"), to deal</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> in the Software without restriction, including without limitation the rights</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> copies of the Software, and to permit persons to whom the Software is</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> The above copyright notice and this permission notice shall be included in all</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">*/</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="ssd1306__i2c__embedded_8h.html">ssd1306_i2c_embedded.h</a>"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="ssd1306__interface_8h.html">intf/ssd1306_interface.h</a>"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="ssd1306__i2c_8h.html">ssd1306_i2c.h</a>"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="io_8h.html">ssd1306_hal/io.h</a>"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#if defined(CONFIG_SOFTWARE_I2C_AVAILABLE) && defined(CONFIG_SOFTWARE_I2C_ENABLE)</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <util/delay_basic.h></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">static</span> uint8_t s_scl = (1<<<a class="code" href="ssd1306__i2c__conf_8h.html#ac9a16e880f5e035fdfa91055cd6ea685">SSD1306_SCL</a>);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">static</span> uint8_t s_sda = (1<<<a class="code" href="ssd1306__i2c__conf_8h.html#a87889918230a8a21e8f836f0c8fada7c">SSD1306_SDA</a>);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">static</span> uint8_t s_sa = <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga05d1c9f1ad427b445574bddab25583ab">SSD1306_SA</a>;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#if defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">// at 8Mhz each command takes ~ 0.125us</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"> #define DDR_REG DDRB</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"> #define PORT_REG PORTB</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#elif defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// For AttinyX4 controllers</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// at 8Mhz each command takes ~ 0.125us</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"> #define DDR_REG DDRA</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"> #define PORT_REG PORTA</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#else // For Atmega</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// at 16Mhz each command takes ~ 0.0625us</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"> #define DDR_REG DDRC</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"> #define PORT_REG PORTC</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#ifndef F_CPU</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"> #warning "F_CPU is not defined, there can be I2C issues"</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"> #define F_CPU 8000000</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#define CPU_CYCLE_NS (1000000000/F_CPU)</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#define DELAY_LOOP_CYCLES 4</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#define ssd1306_delay(x) _delay_loop_2(x)</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#define SSD1306_I2C_START_STOP_DELAY 600</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor">#define SSD1306_I2C_RISE_TIME 300</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#define SSD1306_I2C_FALL_TIME 300</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#define SSD1306_I2C_DATA_HOLD_TIME 300</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#define SSD1306_I2C_IDLE_TIME 1300</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor">#define SSD1306_I2C_CLOCK 2500</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#define I2C_START_STOP_DELAY ((SSD1306_I2C_START_STOP_DELAY/CPU_CYCLE_NS + DELAY_LOOP_CYCLES/2)/DELAY_LOOP_CYCLES)</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#define I2C_RISE_TIME ((SSD1306_I2C_RISE_TIME/CPU_CYCLE_NS)/DELAY_LOOP_CYCLES)</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#define I2C_DATA_HOLD_TIME ((SSD1306_I2C_DATA_HOLD_TIME/CPU_CYCLE_NS + DELAY_LOOP_CYCLES/2)/DELAY_LOOP_CYCLES)</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#define I2C_IDLE_TIME (((SSD1306_I2C_IDLE_TIME/CPU_CYCLE_NS) + DELAY_LOOP_CYCLES/2)/DELAY_LOOP_CYCLES)</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#define I2C_HALF_CLOCK (((SSD1306_I2C_CLOCK - SSD1306_I2C_FALL_TIME - SSD1306_I2C_RISE_TIME - SSD1306_I2C_FALL_TIME)/CPU_CYCLE_NS/2 \</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"> )/DELAY_LOOP_CYCLES)</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">/* I2C HIGH = PORT as INPUT(0) and PULL-UP ENABLE (1) */</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">//#define DIGITAL_WRITE_HIGH(DREG, PREG, BIT) { DREG &= ~(1 << BIT); PREG |= (1 << BIT); }</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#define DIGITAL_WRITE_HIGH(DREG, PREG, BIT) { DREG &= ~BIT; PREG |= BIT; }</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment">/* I2C LOW = PORT as OUTPUT(1) and OUTPUT LOW (0) */</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">//#define DIGITAL_WRITE_LOW(DREG, PREG, BIT) { DREG |= (1 << BIT); PREG &= ~(1 << BIT); }</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#define DIGITAL_WRITE_LOW(DREG, PREG, BIT) { DREG |= BIT; PREG &= ~BIT; }</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">static</span> uint8_t oldSREG;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">static</span> uint8_t interruptsOff = 0;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">static</span> <span class="keywordtype">void</span> ssd1306_i2cSendByte_Embedded(uint8_t data)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  uint8_t i;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">for</span>(i=8; i>0; i--)</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">if</span>(data & 0x80)</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  DIGITAL_WRITE_HIGH(DDR_REG, PORT_REG, s_sda)</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  DIGITAL_WRITE_LOW(DDR_REG, PORT_REG, s_sda);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  data<<=1;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  ssd1306_delay(I2C_RISE_TIME); <span class="comment">// Fall time is the same as rise time</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  DIGITAL_WRITE_HIGH(DDR_REG, PORT_REG, s_scl);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  ssd1306_delay(I2C_HALF_CLOCK);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  DIGITAL_WRITE_LOW(DDR_REG, PORT_REG, s_scl);</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  ssd1306_delay(I2C_HALF_CLOCK);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// generating confirmation impulse</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  DIGITAL_WRITE_HIGH(DDR_REG, PORT_REG, s_sda);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  ssd1306_delay(I2C_RISE_TIME); <span class="comment">// Fall time is the same as rise time</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  DIGITAL_WRITE_HIGH(DDR_REG, PORT_REG, s_scl);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  ssd1306_delay(I2C_HALF_CLOCK);</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  DIGITAL_WRITE_LOW(DDR_REG, PORT_REG, s_scl); </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  ssd1306_delay(I2C_HALF_CLOCK);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="keyword">static</span> <span class="keywordtype">void</span> ssd1306_i2cSendBytes_Embedded(<span class="keyword">const</span> uint8_t *buffer, uint16_t size)</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> {</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">while</span> (size--)</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  ssd1306_i2cSendByte_Embedded(*buffer);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  buffer++;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> }</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="keyword">static</span> <span class="keywordtype">void</span> ssd1306_i2cStart_Embedded(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  oldSREG = SREG;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  cli();</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  interruptsOff = 1;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  DIGITAL_WRITE_LOW(DDR_REG, PORT_REG, s_sda); <span class="comment">// Set to LOW</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  ssd1306_delay(I2C_START_STOP_DELAY);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  DIGITAL_WRITE_LOW(DDR_REG, PORT_REG, s_scl); <span class="comment">// Set to LOW</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  ssd1306_delay(I2C_HALF_CLOCK);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  ssd1306_i2cSendByte_Embedded((s_sa << 1) | 0);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> }</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">static</span> <span class="keywordtype">void</span> ssd1306_i2cStop_Embedded(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> {</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  DIGITAL_WRITE_LOW(DDR_REG, PORT_REG, s_sda); <span class="comment">// Set to LOW</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  ssd1306_delay(I2C_RISE_TIME); <span class="comment">// Fall time is the same as rise time</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  DIGITAL_WRITE_HIGH(DDR_REG, PORT_REG, s_scl); <span class="comment">// Set to HIGH</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  ssd1306_delay(I2C_START_STOP_DELAY);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  DIGITAL_WRITE_HIGH(DDR_REG, PORT_REG, s_sda); <span class="comment">// Set to HIGH</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  ssd1306_delay(I2C_IDLE_TIME);</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (interruptsOff)</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  {</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  SREG = oldSREG;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  interruptsOff = 0;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="keyword">static</span> <span class="keywordtype">void</span> ssd1306_i2cClose_Embedded()</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> }</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#gaa20f0b4b8d87d4663fae2246b47ec699"> 178</a></span> <span class="keywordtype">void</span> <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#gaa20f0b4b8d87d4663fae2246b47ec699">ssd1306_i2cInit_Embedded</a>(int8_t scl, int8_t sda, uint8_t sa)</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> {</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (scl>=0) s_scl = (1<<scl);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span> (sda>=0) s_sda = (1<<sda);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (sa) s_sa = sa;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga15909bf29819391d35ecb7f4e37fbea3">ssd1306_intf</a>.<a class="code" href="structssd1306__interface__t.html#afd33289a509ae27cbdafd118b91ff23e">spi</a> = 0;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga15909bf29819391d35ecb7f4e37fbea3">ssd1306_intf</a>.<a class="code" href="structssd1306__interface__t.html#a347dbbf8fdb470d133901c8fbd8c5186">start</a> = ssd1306_i2cStart_Embedded;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga15909bf29819391d35ecb7f4e37fbea3">ssd1306_intf</a>.<a class="code" href="structssd1306__interface__t.html#a1cccdffea7b707f9db54e93375d12a22">stop</a> = ssd1306_i2cStop_Embedded;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga15909bf29819391d35ecb7f4e37fbea3">ssd1306_intf</a>.<a class="code" href="structssd1306__interface__t.html#a9d99111dfccc867514cab4e2ae2cd613">send</a> = ssd1306_i2cSendByte_Embedded;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga15909bf29819391d35ecb7f4e37fbea3">ssd1306_intf</a>.<a class="code" href="structssd1306__interface__t.html#ab753c14b485fd4588cc08ed6bf598b4c">send_buffer</a> = ssd1306_i2cSendBytes_Embedded;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <a class="code" href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga15909bf29819391d35ecb7f4e37fbea3">ssd1306_intf</a>.<a class="code" href="structssd1306__interface__t.html#a082afeefa07cb717ef3f837667b18491">close</a> = ssd1306_i2cClose_Embedded;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> }</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structssd1306__interface__t_html_a9d99111dfccc867514cab4e2ae2cd613"><div class="ttname"><a href="structssd1306__interface__t.html#a9d99111dfccc867514cab4e2ae2cd613">ssd1306_interface_t::send</a></div><div class="ttdeci">void(* send)(uint8_t data)</div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__interface_8h_source.html#l00070">ssd1306_interface.h:70</a></div></div>
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<div class="ttc" id="structssd1306__interface__t_html_a1cccdffea7b707f9db54e93375d12a22"><div class="ttname"><a href="structssd1306__interface__t.html#a1cccdffea7b707f9db54e93375d12a22">ssd1306_interface_t::stop</a></div><div class="ttdeci">void(* stop)(void)</div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__interface_8h_source.html#l00065">ssd1306_interface.h:65</a></div></div>
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<div class="ttc" id="io_8h_html"><div class="ttname"><a href="io_8h.html">io.h</a></div></div>
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<div class="ttc" id="ssd1306__i2c_8h_html"><div class="ttname"><a href="ssd1306__i2c_8h.html">ssd1306_i2c.h</a></div></div>
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<div class="ttc" id="ssd1306__i2c__conf_8h_html_a87889918230a8a21e8f836f0c8fada7c"><div class="ttname"><a href="ssd1306__i2c__conf_8h.html#a87889918230a8a21e8f836f0c8fada7c">SSD1306_SDA</a></div><div class="ttdeci">#define SSD1306_SDA</div><div class="ttdoc">SDA, Pin 4 on SSD1306 Board. </div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__i2c__conf_8h_source.html#l00055">ssd1306_i2c_conf.h:55</a></div></div>
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<div class="ttc" id="ssd1306__i2c__embedded_8h_html"><div class="ttname"><a href="ssd1306__i2c__embedded_8h.html">ssd1306_i2c_embedded.h</a></div></div>
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<div class="ttc" id="structssd1306__interface__t_html_a347dbbf8fdb470d133901c8fbd8c5186"><div class="ttname"><a href="structssd1306__interface__t.html#a347dbbf8fdb470d133901c8fbd8c5186">ssd1306_interface_t::start</a></div><div class="ttdeci">void(* start)(void)</div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__interface_8h_source.html#l00061">ssd1306_interface.h:61</a></div></div>
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<div class="ttc" id="structssd1306__interface__t_html_a082afeefa07cb717ef3f837667b18491"><div class="ttname"><a href="structssd1306__interface__t.html#a082afeefa07cb717ef3f837667b18491">ssd1306_interface_t::close</a></div><div class="ttdeci">void(* close)(void)</div><div class="ttdoc">deinitializes internal resources, allocated for interface. </div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__interface_8h_source.html#l00088">ssd1306_interface.h:88</a></div></div>
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<div class="ttc" id="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i_html_ga15909bf29819391d35ecb7f4e37fbea3"><div class="ttname"><a href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga15909bf29819391d35ecb7f4e37fbea3">ssd1306_intf</a></div><div class="ttdeci">ssd1306_interface_t ssd1306_intf</div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__interface_8c_source.html#l00031">ssd1306_interface.c:31</a></div></div>
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<div class="ttc" id="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i_html_ga05d1c9f1ad427b445574bddab25583ab"><div class="ttname"><a href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#ga05d1c9f1ad427b445574bddab25583ab">SSD1306_SA</a></div><div class="ttdeci">#define SSD1306_SA</div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__i2c__conf_8h_source.html#l00047">ssd1306_i2c_conf.h:47</a></div></div>
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<div class="ttc" id="ssd1306__i2c__conf_8h_html_ac9a16e880f5e035fdfa91055cd6ea685"><div class="ttname"><a href="ssd1306__i2c__conf_8h.html#ac9a16e880f5e035fdfa91055cd6ea685">SSD1306_SCL</a></div><div class="ttdeci">#define SSD1306_SCL</div><div class="ttdoc">SCL, Pin 3 on SSD1306 Board. </div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__i2c__conf_8h_source.html#l00052">ssd1306_i2c_conf.h:52</a></div></div>
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<div class="ttc" id="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i_html_gaa20f0b4b8d87d4663fae2246b47ec699"><div class="ttname"><a href="group___l_c_d___h_w___i_n_t_e_r_f_a_c_e___a_p_i.html#gaa20f0b4b8d87d4663fae2246b47ec699">ssd1306_i2cInit_Embedded</a></div><div class="ttdeci">void ssd1306_i2cInit_Embedded(int8_t scl, int8_t sda, uint8_t sa)</div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__i2c__embedded_8c_source.html#l00178">ssd1306_i2c_embedded.c:178</a></div></div>
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<div class="ttc" id="ssd1306__interface_8h_html"><div class="ttname"><a href="ssd1306__interface_8h.html">ssd1306_interface.h</a></div></div>
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<div class="ttc" id="structssd1306__interface__t_html_afd33289a509ae27cbdafd118b91ff23e"><div class="ttname"><a href="structssd1306__interface__t.html#afd33289a509ae27cbdafd118b91ff23e">ssd1306_interface_t::spi</a></div><div class="ttdeci">uint8_t spi</div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__interface_8h_source.html#l00057">ssd1306_interface.h:57</a></div></div>
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<div class="ttc" id="structssd1306__interface__t_html_ab753c14b485fd4588cc08ed6bf598b4c"><div class="ttname"><a href="structssd1306__interface__t.html#ab753c14b485fd4588cc08ed6bf598b4c">ssd1306_interface_t::send_buffer</a></div><div class="ttdeci">void(* send_buffer)(const uint8_t *buffer, uint16_t size)</div><div class="ttdoc">Sends bytes to SSD1306 device. </div><div class="ttdef"><b>Definition:</b> <a href="ssd1306__interface_8h_source.html#l00080">ssd1306_interface.h:80</a></div></div>
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