Jeroen Hilgers
Driver for a 128x64 pixels graphic LCD panel based on a KS0723 driver from Samsung.
Diff: LcdKs0723.cpp
- Revision:
- 0:6c80c61bbc6a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/LcdKs0723.cpp Sun Feb 20 12:01:57 2011 +0000
@@ -0,0 +1,287 @@
+/* mbed Samsung LCD Library, for a samsung KS0723 based 128x64 black/white lcd panel.
+ * Copyright (c) 2011, Jeroen Hilgers
+ *
+ * I based the interface on the LCD libraries by Simon Ford, to obtain compatibility
+ * between different displays. I used TextLCD as an example to implement the
+ * : public Steam part of this library.
+ *
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "LcdKs0723.h"
+
+LcdKs0723::LcdKs0723(PinName reset, PinName rs, PinName write, PinName read, PinName d0, PinName d1,
+ PinName d2, PinName d3, PinName d4, PinName d5, PinName d6, PinName d7) :
+ mReset(reset), mRs(rs), mWrite(write), mRead(read),
+ mData(d0, d1, d2, d3, d4, d5, d6, d7)
+{
+ mRow = 0;
+ mCol = 0;
+
+ // Init IO
+ mWrite = 1;
+ mRead = 1;
+ mRs = 0;
+ mData.input();
+
+ // Reset
+ mReset = 0;
+ wait(0.001);
+ mReset = 1;
+ wait(0.1);
+
+ // Select LCD BIAS
+ WriteControl(0xA3);
+
+ // ADCSelect
+ WriteControl(0xA1);
+
+ // PowerControl
+ WriteControl(0x2C);
+ wait(0.002);
+ WriteControl(0x2E);
+ wait(0.002);
+ WriteControl(0x2F);
+ wait(0.002);
+
+ // Regulator resistor
+ WriteControl(0x24);
+
+ // Reference Voltage
+ WriteControl(0x81);
+ WriteControl(0x20);
+ wait(0.1);
+
+ cls();
+
+ // Display on.
+ WriteControl(0xAF);
+}
+
+int LcdKs0723::_putc(int value)
+{
+ if(value == '\n')
+ {
+ mCol = 0;
+ mRow = (mRow+1) & 7;
+ return value;
+ }
+
+ const uint8_t *ptr = mFont5x7 + value*5;
+ uint8_t x;
+
+ WriteControl( 0xB0 | mRow); // Page address.
+ WriteControl( 0x10 | (((mCol+3)>>4)&0x0F) ); // Column address. Display starts at pixel 3.
+ WriteControl( 0x00 | ((mCol+3)&0x0F) ); // Column address 2nd nibble.
+
+ mRs = 1;
+ mData.output();
+
+ for(x=0; x<5; x++)
+ {
+ mData = *ptr++;
+ mWrite = 0;
+ mWrite = 1;
+ }
+ mData = 0;
+ mWrite = 0;
+ mWrite = 1;
+
+ mData.input();
+ mData = 0;
+ mCol += 6;
+
+ if(mCol > 122)
+ {
+ mCol = 0;
+ mRow = (mRow+1)&7;
+ }
+
+ return value;
+}
+
+void LcdKs0723::locate(int column, int row)
+{
+ mRow = row & 7; // Limit to 0-7.
+ if(column < 21)
+ mCol = column*6;
+ else
+ mCol = 0;
+}
+
+void LcdKs0723::cls()
+{
+ uint16_t page;
+ uint8_t x;
+ for(page = 0; page<8; page++)
+ {
+ WriteControl(0xB0 | page); // Page address.
+ WriteControl(0x10); // Column address. Start at column 0.
+ WriteControl(0); // Column address 2nd nibble.
+
+ // Setup to write data 0x00 to display.
+ mRs = 1;
+ mData.output();
+ mData = 0;
+
+ // First three columns are attached to '>' symbols next to the pixel area.
+ // This library has no use for them, but we don't want them uninitialized.
+ for(x=0; x<3; x++)
+ {
+ mWrite = 0;
+ mWrite = 1;
+ }
+
+ // Columns 3-131 display pixel data. Clear them.
+ for(x=0; x<128; x++)
+ {
+ mWrite = 0;
+ mWrite = 1;
+ }
+
+ // Last five three columns are attached to '<' symbols next to the pixel area.
+ // This library has no use for them, but we don't want them uninitialized.
+ for(x=0; x<5; x++)
+ {
+ mWrite = 0;
+ mWrite = 1;
+ }
+ mData.input();
+ mData = 0;
+ }
+
+ mRow =0;
+ mCol = 0;
+}
+
+uint8_t LcdKs0723::ReadData (void)
+{
+ uint8_t result;
+ mData.input();
+ mRs = 1;
+ mRead = 0;
+ result = mData;
+ mRead = 1;
+ return result;
+}
+
+void LcdKs0723::WriteData (uint8_t value)
+{
+ mRs = 1;
+ mData.output();
+ mData = value;
+ mWrite = 0;
+ mWrite = 1;
+ mData.input();
+ mData = 0;
+}
+
+uint8_t LcdKs0723::ReadStatus(void)
+{
+ uint8_t result;
+ mData.input();
+ mRs = 0;
+ mRead = 0;
+ result = mData;
+ mRead = 1;
+ return result;
+}
+
+void LcdKs0723::WriteControl(uint8_t value)
+{
+ mRs = 0;
+ mData.output();
+ mData = value;
+ mWrite = 0;
+ mWrite = 1;
+ mData.input();
+ mData = 0;
+}
+
+const uint8_t LcdKs0723::mFont5x7[] =
+{
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x07, 0x05, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 1A = deg symbol.
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0x00, 0x00,
+ 0x00, 0x07, 0x00, 0x07, 0x00, 0x14, 0x7F, 0x14, 0x7F, 0x14,
+ 0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x23, 0x13, 0x08, 0x64, 0x62,
+ 0x36, 0x49, 0x55, 0x22, 0x50, 0x00, 0x05, 0x03, 0x00, 0x00,
+ 0x00, 0x1C, 0x22, 0x41, 0x00, 0x00, 0x41, 0x22, 0x1C, 0x00,
+ 0x14, 0x08, 0x3E, 0x08, 0x14, 0x08, 0x08, 0x3E, 0x08, 0x08,
+ 0x00, 0x50, 0x30, 0x00, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08,
+ 0x00, 0x60, 0x60, 0x00, 0x00, 0x20, 0x10, 0x08, 0x04, 0x02,
+ 0x3E, 0x51, 0x49, 0x45, 0x3E, 0x00, 0x42, 0x7F, 0x40, 0x00,
+ 0x42, 0x61, 0x51, 0x49, 0x46, 0x21, 0x41, 0x45, 0x4B, 0x31,
+ 0x18, 0x14, 0x12, 0x7F, 0x10, 0x27, 0x45, 0x45, 0x45, 0x39,
+ 0x3C, 0x4A, 0x49, 0x49, 0x30, 0x01, 0x71, 0x09, 0x05, 0x03,
+ 0x36, 0x49, 0x49, 0x49, 0x36, 0x06, 0x49, 0x49, 0x29, 0x1E,
+ 0x00, 0x36, 0x36, 0x00, 0x00, 0x00, 0x56, 0x36, 0x00, 0x00,
+ 0x08, 0x14, 0x22, 0x41, 0x00, 0x14, 0x14, 0x14, 0x14, 0x14,
+ 0x00, 0x41, 0x22, 0x14, 0x08, 0x02, 0x01, 0x51, 0x09, 0x06,
+ 0x32, 0x49, 0x79, 0x41, 0x3E, 0x7E, 0x11, 0x11, 0x11, 0x7E,
+ 0x7F, 0x49, 0x49, 0x49, 0x36, 0x3E, 0x41, 0x41, 0x41, 0x22,
+ 0x7F, 0x41, 0x41, 0x22, 0x1C, 0x7F, 0x49, 0x49, 0x49, 0x41,
+ 0x7F, 0x09, 0x09, 0x09, 0x01, 0x3E, 0x41, 0x49, 0x49, 0x7A,
+ 0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00, 0x41, 0x7F, 0x41, 0x00,
+ 0x20, 0x40, 0x41, 0x3F, 0x01, 0x7F, 0x08, 0x14, 0x22, 0x41,
+ 0x7F, 0x40, 0x40, 0x40, 0x40, 0x7F, 0x02, 0x0C, 0x02, 0x7F,
+ 0x7F, 0x04, 0x08, 0x10, 0x7F, 0x3E, 0x41, 0x41, 0x41, 0x3E,
+ 0x7F, 0x09, 0x09, 0x09, 0x06, 0x3E, 0x41, 0x51, 0x21, 0x5E,
+ 0x7F, 0x09, 0x19, 0x29, 0x46, 0x46, 0x49, 0x49, 0x49, 0x31,
+ 0x01, 0x01, 0x7F, 0x01, 0x01, 0x3F, 0x40, 0x40, 0x40, 0x3F,
+ 0x1F, 0x20, 0x40, 0x20, 0x1F, 0x3F, 0x40, 0x38, 0x40, 0x3F,
+ 0x63, 0x14, 0x08, 0x14, 0x63, 0x07, 0x08, 0x70, 0x08, 0x07,
+ 0x61, 0x51, 0x49, 0x45, 0x43, 0x00, 0x7F, 0x41, 0x41, 0x00,
+ 0x02, 0x04, 0x08, 0x10, 0x20, 0x00, 0x41, 0x41, 0x7F, 0x00,
+ 0x04, 0x02, 0x01, 0x02, 0x04, 0x40, 0x40, 0x40, 0x40, 0x40,
+ 0x00, 0x01, 0x02, 0x04, 0x00, 0x20, 0x54, 0x54, 0x54, 0x78,
+ 0x7F, 0x48, 0x44, 0x44, 0x38, 0x38, 0x44, 0x44, 0x44, 0x20,
+ 0x38, 0x44, 0x44, 0x48, 0x7F, 0x38, 0x54, 0x54, 0x54, 0x18,
+ 0x08, 0x7E, 0x09, 0x01, 0x02, 0x0C, 0x52, 0x52, 0x52, 0x3E,
+ 0x7F, 0x08, 0x04, 0x04, 0x78, 0x00, 0x44, 0x7D, 0x40, 0x00,
+ 0x20, 0x40, 0x44, 0x3D, 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,
+ 0x00, 0x41, 0x7F, 0x40, 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,
+ 0x7C, 0x08, 0x04, 0x04, 0x78, 0x38, 0x44, 0x44, 0x44, 0x38,
+ 0x7C, 0x14, 0x14, 0x14, 0x08, 0x08, 0x14, 0x14, 0x18, 0x7C,
+ 0x7C, 0x08, 0x04, 0x04, 0x08, 0x48, 0x54, 0x54, 0x54, 0x20,
+ 0x04, 0x3F, 0x44, 0x40, 0x20, 0x3C, 0x40, 0x40, 0x20, 0x7C,
+ 0x1C, 0x20, 0x40, 0x20, 0x1C, 0x3C, 0x40, 0x30, 0x40, 0x3C,
+ 0x44, 0x28, 0x10, 0x28, 0x44, 0x0C, 0x50, 0x50, 0x50, 0x3C,
+ 0x44, 0x64, 0x54, 0x4C, 0x44, 0x00, 0x08, 0x36, 0x41, 0x00,
+ 0x00, 0x00, 0x7F, 0x00, 0x00, 0x00, 0x41, 0x36, 0x08, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+
+
\ No newline at end of file