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96 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_3e8b6843e03d464b23d8454463bc5acb.html">vga</a></li><li class="navelem"><a class="el" href="dir_ed3beb012346184f5d0af670774de6e9.html">atmega328p</a></li> </ul>
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<div class="title">vga96x40.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) 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="vga_8h.html">intf/vga/vga.h</a>"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// Never include vga96x40_isr.h here!!!</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</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="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "<a class="code" href="lcd__common_8h.html">lcd/lcd_common.h</a>"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="vga__commands_8h.html">lcd/vga_commands.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_VGA_AVAILABLE) && defined(CONFIG_VGA_ENABLE) && defined(__AVR_ATmega328P__)</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="keyword">extern</span> uint16_t ssd1306_color;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">/* This buffer fits 96x40 pixels</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> Each 8 pixels are packed to 3 bytes:</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> BYTE1: B7 R2 G2 B2 B8 R1 G1 B1</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> BYTE2: G7 R4 G4 B4 G8 R3 G3 B3</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> BYTE3: R7 R6 G6 B6 R8 R5 G5 B5</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"></span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> Yeah, a little bit complicated, but this allows to quickly unpack structure</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">*/</span></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="comment">// Set to ssd1306 compatible mode by default</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">static</span> uint8_t s_mode = 0x01;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">static</span> uint8_t s_vga_command = 0xFF;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">static</span> uint8_t s_vga_arg = 0;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">static</span> uint8_t s_column = 0;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">static</span> uint8_t s_column_end = 0;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">static</span> uint8_t s_cursor_x = 0;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">static</span> uint8_t s_cursor_y = 0;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">volatile</span> uint8_t s_vga_frames;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">static</span> <span class="keywordtype">void</span> vga_controller_init(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  s_vga_command = 0xFF;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</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> <span class="keyword">static</span> <span class="keywordtype">void</span> vga_controller_stop(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  s_vga_command = 0xFF;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> }</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">static</span> <span class="keywordtype">void</span> vga_controller_close(<span class="keywordtype">void</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> }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment">/* This buffer fits 96x40 pixels</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> Each 8 pixels are packed to 3 bytes:</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"></span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> BYTE1: B7 R2 G2 B2 B8 R1 G1 B1</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> BYTE2: G7 R4 G4 B4 G8 R3 G3 B3</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> BYTE3: R7 R6 G6 B6 R8 R5 G5 B5</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"></span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> Yeah, a little bit complicated, but this allows to quickly unpack structure</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">*/</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> vga_controller_put_pixel3(uint8_t x, uint8_t y, uint8_t color)</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>  uint16_t addr = (x >> 3)*3 + (uint16_t)y*36;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  uint8_t offset = x & 0x07;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (addr >= 36*40)</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (offset < 6)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (x&1)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  __vga_buffer[addr + (offset>>1)] &= 0x8F;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  __vga_buffer[addr + (offset>>1)] |= (color<<4);</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="keywordflow">else</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  {</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  __vga_buffer[addr + (offset>>1)] &= 0xF8;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  __vga_buffer[addr + (offset>>1)] |= color;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (offset == 6)</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>  __vga_buffer[addr+0] &= 0x7F;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  __vga_buffer[addr+0] |= ((color & 0x01) << 7);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  __vga_buffer[addr+1] &= 0x7F;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  __vga_buffer[addr+1] |= ((color & 0x02) << 6);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  __vga_buffer[addr+2] &= 0x7F;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  __vga_buffer[addr+2] |= ((color & 0x04) << 5);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">else</span> <span class="comment">// if (offset == 7)</span></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>  __vga_buffer[addr+0] &= 0xF7;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  __vga_buffer[addr+0] |= ((color & 0x01) << 3);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  __vga_buffer[addr+1] &= 0xF7;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  __vga_buffer[addr+1] |= ((color & 0x02) << 2);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  __vga_buffer[addr+2] &= 0xF7;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  __vga_buffer[addr+2] |= ((color & 0x04) << 1);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> }</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">static</span> <span class="keywordtype">void</span> vga_controller_send_byte4(uint8_t data)</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> {</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (s_vga_command == 0xFF)</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>  s_vga_command = data;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span>;</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="keywordflow">if</span> (s_vga_command == 0x40)</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  {</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  uint8_t color = ((data & 0x80) >> 5) | ((data & 0x10) >> 3) | ((data & 0x02)>>1);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  vga_controller_put_pixel3(s_cursor_x, s_cursor_y, color);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (s_mode == 0x00)</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  {</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  s_cursor_x++;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> (s_cursor_x > s_column_end)</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>  s_cursor_x = s_column;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  s_cursor_y++;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</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>  <span class="keywordflow">else</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  {</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  s_cursor_y++;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">if</span> ((s_cursor_y & 0x07) == 0)</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  {</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  s_cursor_y -= 8;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  s_cursor_x++;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// command mode</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">if</span> (!s_vga_command)</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  {</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  s_vga_command = data;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  s_vga_arg = 0;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">if</span> (s_vga_command == <a class="code" href="vga__commands_8h.html#a6a3ce562f42b87c3763dd0cdd3f1dee2a85b2ea560661c4e81b3746fa463d6d51">VGA_SET_BLOCK</a>)</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>  <span class="comment">// set block</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">if</span> (s_vga_arg == 1) { s_column = data; s_cursor_x = data; }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">if</span> (s_vga_arg == 2) { s_column_end = data; }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">if</span> (s_vga_arg == 3) { s_cursor_y = data; }</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (s_vga_arg == 4) { s_vga_command = 0; }</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (s_vga_command == <a class="code" href="vga__commands_8h.html#a6a3ce562f42b87c3763dd0cdd3f1dee2a699dc4ba7ac890dffb99907e5d705d54">VGA_SET_MODE</a>)</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  {</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">if</span> (s_vga_arg == 1) { s_mode = data; s_vga_command = 0; }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  s_vga_arg++;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> }</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="keyword">static</span> <span class="keywordtype">void</span> vga_controller_send_bytes(<span class="keyword">const</span> uint8_t *buffer, uint16_t len)</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>  <span class="keywordflow">while</span> (len--)</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  {</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</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>(*buffer);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  buffer++;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> }</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="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> init_vga_crt_driver(uint8_t enable_jitter_fix)</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> {</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  cli();</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">if</span> (enable_jitter_fix)</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  {</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// Configure Timer 0 to calculate jitter fix</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  TIMSK0=0;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  TCCR0A=0;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  TCCR0B=1;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  OCR0A=0;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  OCR0B=0;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  TCNT0=0;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  }</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  {</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// Sorry, we still need to disable timer0 interrupts to avoid wake up in sleep mode</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  TIMSK0 &= ~(1<<TOIE0);</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// Timer 1 - vertical sync pulses</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  pinMode (V_SYNC_PIN, OUTPUT);</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  TCCR1A=(1<<WGM10) | (1<<WGM11) | (1<<COM1B1);</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  TCCR1B=(1<<WGM12) | (1<<WGM13) | (1<<CS12) | (1<<CS10); <span class="comment">//1024 prescaler</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  OCR1A = 259; <span class="comment">// 16666 / 64 us = 260 (less one)</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  OCR1B = 0; <span class="comment">// 64 / 64 us = 1 (less one)</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  TIFR1 = (1<<TOV1); <span class="comment">// clear overflow flag</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  TIMSK1 = (1<<TOIE1); <span class="comment">// interrupt on overflow on timer 1</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// Timer 2 - horizontal sync pulses</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  pinMode (H_SYNC_PIN, OUTPUT);</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  TCCR2A=(1<<WGM20) | (1<<WGM21) | (1<<COM2B1); <span class="comment">//pin3=COM2B1</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  TCCR2B=(1<<WGM22) | (1<<CS21); <span class="comment">//8 prescaler</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  OCR2A = 63; <span class="comment">// 32 / 0.5 us = 64 (less one)</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  OCR2B = 7; <span class="comment">// 4 / 0.5 us = 8 (less one)</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment">// if (enable_jitter_fix)</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  {</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  TIFR2 = (1<<OCF2B); <span class="comment">// on end of h-sync pulse</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  TIMSK2 = (1<<OCIE2B); <span class="comment">// on end of h-sync pulse</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment">// else</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// {</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment">// TIFR2 = (1<<TOV2); // int on start of h-sync pulse</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// TIMSK2 = (1<<TOIE2); // int on start of h-sync pulse</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment">// }</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">// Set up USART in SPI mode (MSPIM)</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  pinMode(14, OUTPUT);</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  pinMode(15, OUTPUT);</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  pinMode(16, OUTPUT);</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  PORTC = 0;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  sei();</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> }</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="keywordtype">void</span> ssd1306_vga_controller_96x40_init_no_output(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> {</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</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="l00238"></a><span class="lineno"> 238</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> = vga_controller_init;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</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> = vga_controller_stop;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</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> = vga_controller_send_byte4;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</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> = vga_controller_send_bytes;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</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> = vga_controller_close;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> }</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="keywordtype">void</span> ssd1306_vga_controller_96x40_init_enable_output(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> {</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  ssd1306_vga_controller_96x40_init_no_output();</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  init_vga_crt_driver(1);</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> }</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="keywordtype">void</span> ssd1306_vga_controller_96x40_init_enable_output_no_jitter_fix(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> {</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  ssd1306_vga_controller_96x40_init_no_output();</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  init_vga_crt_driver(0);</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment">// set_sleep_mode (SLEEP_MODE_IDLE);</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> }</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keywordtype">void</span> ssd1306_debug_print_vga_buffer_96x40(<span class="keywordtype">void</span> (*func)(uint8_t))</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> {</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> y = 0; y < <a class="code" href="group___l_c_d___i_n_t_e_r_f_a_c_e___a_p_i.html#gaddd9cfaaeac4d2937f5372313ddaee4f">ssd1306_lcd</a>.<a class="code" href="structssd1306__lcd__t.html#af576fdaf144fefdb8e278ca3cb90f49e">height</a>; y++)</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  {</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> x = 0; x < <a class="code" href="group___l_c_d___i_n_t_e_r_f_a_c_e___a_p_i.html#gaddd9cfaaeac4d2937f5372313ddaee4f">ssd1306_lcd</a>.<a class="code" href="structssd1306__lcd__t.html#a0c7d9e9ee7e3d36391e55731b0ebc516">width</a>; x++)</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  {</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  uint8_t color = (__vga_buffer[(y*<a class="code" href="group___l_c_d___i_n_t_e_r_f_a_c_e___a_p_i.html#gaddd9cfaaeac4d2937f5372313ddaee4f">ssd1306_lcd</a>.<a class="code" href="structssd1306__lcd__t.html#a0c7d9e9ee7e3d36391e55731b0ebc516">width</a> + x)/2] >> ((x&1)<<2)) & 0x0F;</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">if</span> (color)</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  {</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  func(<span class="charliteral">'#'</span>);</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  func(<span class="charliteral">'#'</span>);</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  }</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  {</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  func(<span class="charliteral">' '</span>);</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  func(<span class="charliteral">' '</span>);</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  }</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  }</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  func(<span class="charliteral">'\n'</span>);</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  }</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  func(<span class="charliteral">'\n'</span>);</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> }</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="keywordtype">void</span> ssd1306_vga_delay(uint32_t ms)</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> {</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordflow">while</span> (ms >= 16)</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  uint8_t vga_frames;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  vga_frames = s_vga_frames;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">while</span> (vga_frames == s_vga_frames);</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  ms-=16;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> }</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> </div><div class="line"><a name="l00292"></a><span class="lineno"> 292</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="lcd__common_8h_html"><div class="ttname"><a href="lcd__common_8h.html">lcd_common.h</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="vga__commands_8h_html"><div class="ttname"><a href="vga__commands_8h.html">vga_commands.h</a></div></div>
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<div class="ttc" id="vga__commands_8h_html_a6a3ce562f42b87c3763dd0cdd3f1dee2a699dc4ba7ac890dffb99907e5d705d54"><div class="ttname"><a href="vga__commands_8h.html#a6a3ce562f42b87c3763dd0cdd3f1dee2a699dc4ba7ac890dffb99907e5d705d54">VGA_SET_MODE</a></div><div class="ttdef"><b>Definition:</b> <a href="vga__commands_8h_source.html#l00059">vga_commands.h:59</a></div></div>
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<div class="ttc" id="vga_8h_html"><div class="ttname"><a href="vga_8h.html">vga.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___i_n_t_e_r_f_a_c_e___a_p_i_html_gaddd9cfaaeac4d2937f5372313ddaee4f"><div class="ttname"><a href="group___l_c_d___i_n_t_e_r_f_a_c_e___a_p_i.html#gaddd9cfaaeac4d2937f5372313ddaee4f">ssd1306_lcd</a></div><div class="ttdeci">ssd1306_lcd_t ssd1306_lcd</div><div class="ttdef"><b>Definition:</b> <a href="lcd__common_8c_source.html#l00033">lcd_common.c:33</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="vga__commands_8h_html_a6a3ce562f42b87c3763dd0cdd3f1dee2a85b2ea560661c4e81b3746fa463d6d51"><div class="ttname"><a href="vga__commands_8h.html#a6a3ce562f42b87c3763dd0cdd3f1dee2a85b2ea560661c4e81b3746fa463d6d51">VGA_SET_BLOCK</a></div><div class="ttdef"><b>Definition:</b> <a href="vga__commands_8h_source.html#l00047">vga_commands.h:47</a></div></div>
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<div class="ttc" id="structssd1306__lcd__t_html_af576fdaf144fefdb8e278ca3cb90f49e"><div class="ttname"><a href="structssd1306__lcd__t.html#af576fdaf144fefdb8e278ca3cb90f49e">ssd1306_lcd_t::height</a></div><div class="ttdeci">lcduint_t height</div><div class="ttdef"><b>Definition:</b> <a href="lcd__common_8h_source.html#l00097">lcd_common.h:97</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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<div class="ttc" id="structssd1306__lcd__t_html_a0c7d9e9ee7e3d36391e55731b0ebc516"><div class="ttname"><a href="structssd1306__lcd__t.html#a0c7d9e9ee7e3d36391e55731b0ebc516">ssd1306_lcd_t::width</a></div><div class="ttdeci">lcduint_t width</div><div class="ttdef"><b>Definition:</b> <a href="lcd__common_8h_source.html#l00094">lcd_common.h:94</a></div></div>
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