45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
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// This is the command sequence that rotates the RM68140 driver coordinate frame
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writecommand(TFT_MADCTL);
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rotation = m % 4;
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switch (rotation) {
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case 0: // Portrait
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writedata(TFT_MAD_BGR);
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writecommand(0xB6);
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writedata(0);
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writedata(0x22);
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writedata(0x3B);
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_width = TFT_WIDTH;
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_height = TFT_HEIGHT;
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break;
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case 1: // Landscape (Portrait + 90)
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writedata(TFT_MAD_MV | TFT_MAD_BGR);
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writecommand(0xB6);
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writedata(0);
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writedata(0x02);
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writedata(0x3B);
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_width = TFT_HEIGHT;
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_height = TFT_WIDTH;
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break;
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case 2: // Inverter portrait
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writedata(TFT_MAD_BGR);
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writecommand(0xB6);
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writedata(0);
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writedata(0x42);
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writedata(0x3B);
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_width = TFT_WIDTH;
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_height = TFT_HEIGHT;
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break;
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case 3: // Inverted landscape
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writedata(TFT_MAD_MV | TFT_MAD_BGR);
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writecommand(0xB6);
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writedata(0);
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writedata(0x62);
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writedata(0x3B);
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_width = TFT_HEIGHT;
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_height = TFT_WIDTH;
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break;
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}
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