Revision 0:6c80c61bbc6a, committed 2011-02-20

Comitter:

hilgo

Date:

Sun Feb 20 12:01:57 2011 +0000

Commit message:

Initial revision; tested with example code.

Changed in this revision

--- /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

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LcdKs0723.h	Sun Feb 20 12:01:57 2011 +0000
@@ -0,0 +1,115 @@
+/* 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.
+ */
+
+
+#ifndef MBED_SAMSUNG_LCD_H
+#define MBED_SAMSUNG_LCD_H
+
+#include "mbed.h"
+
+/** LcdKs0723 class. Provides an interface compatible with
+ ** other display libraries by Simon Ford on www.mbed.org.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "LcdKs0723.h"
+ *
+ * LcdKs0723 lcd(p28, p10, p27, p19, p25, p15, p24, p16, p23, p17, p22, p18);
+ *
+ * int main() 
+ * {
+ *    lcd.printf("KS0723 LCD Display driver.\n");
+ *    lcd.printf("Float: %1.3f\n", 1.375f);
+ *    lcd.printf("Hex: 0x%04X\n", 0xB12);
+ *    while(1) 
+ *   {
+ *   }
+ * }
+ * @endcode
+ */
+
+class LcdKs0723 : public Stream 
+{
+  public:
+    /** Create a LcdKs0723 interface
+     *
+     * @param reset Reset line
+     * @param rs    RS line
+     * @param write Write line
+     * @param read  Read line
+     * @param d0-d7 Data lines
+     */  
+    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);
+               
+#if DOXYGEN_ONLY
+    /** Write a character to the LCD
+     *
+     * @param c The character to write to the display
+     */
+    int putc(int c);
+
+    /** Write a formated string to the LCD
+     *
+     * @param format A printf-style format string, followed by the
+     *               variables to use in formating the string.
+     */
+    int printf(const char* format, ...);
+#endif               
+
+    /** Locate to a screen column and row
+     *
+     * @param column  The horizontal position from the left, indexed from 0
+     * @param row     The vertical position from the top, indexed from 0
+     */
+    void locate(int column, int row);
+
+    /** Clear the screen and locate to 0,0 */
+    void cls();
+
+  private:
+     DigitalOut mReset, mRs, mWrite, mRead;
+     BusInOut mData;
+     int mRow;
+     int mCol;
+     
+     uint8_t ReadData (void);
+     void WriteData (uint8_t value);
+     uint8_t ReadStatus(void);
+     void WriteControl(uint8_t value);
+     
+     // Character definition.
+     static const uint8_t mFont5x7[];
+     
+  protected:
+     // Stream implementation functions.
+     virtual int _putc(int value);
+     virtual int _getc() {return -1;}     
+};
+
+#endif