Revision 0:2ba6a6510880, committed 2013-12-11

Comitter:

bant62

Date:

Wed Dec 11 11:58:45 2013 +0000

Child:

1:794acd9a0b9c

Commit message:

first commit

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MyLCD.cpp	Wed Dec 11 11:58:45 2013 +0000
@@ -0,0 +1,269 @@
+/**
+ *****************************************************************************
+ * File Name    : MyLCD.cpp
+ *
+ * Title        : ORGINAL I2C LCD Display Claass Source File
+ * Revision     : 0.1
+ * Notes        :
+ * Target Board : mbed NXP LPC1768, mbed LPC1114FN28  etc
+ * Tool Chain   : ????
+ *
+ * Revision History:
+ * When         Who         Description of change
+ * -----------  ----------- -----------------------
+ * 2012/12/11   Hiroshi M   init
+ *****************************************************************************
+ *
+ * Copyright (C) 2013 Hiroshi M, MIT License
+ *
+ * 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.
+ *
+ **/
+
+/* Includes ----------------------------------------------------------------- */
+#include "mbed.h"
+#include "MyLCD.h"
+#include <string.h>
+
+/* Private typedef ---------------------------------------------------------- */
+/* Private define ----------------------------------------------------------- */
+/* Private macro ------------------------------------------------------------ */
+/* Private variables -------------------------------------------------------- */
+
+/* member fanctions --------------------------------------------------------- */
+
+
+// Constractor
+MyLCD::MyLCD(I2C *i2c): _i2c(i2c)
+{
+    _column = 0;
+    _row = 0;
+}
+
+int MyLCD::writeBytes(const char *data, int length, bool repeated)
+{
+    wait_us(i2c_bit_wait_us);
+    _i2c->start();
+
+    wait_us(i2c_bit_wait_us);
+    if (_i2c->write(i2c_addr) != 1)
+    {
+        wait_us(i2c_bit_wait_us);
+        _i2c->stop();
+        return _i2cFAILURE;
+    }
+
+    for (int i = 0; i < length; i++)
+    {
+        wait_us(i2c_bit_wait_us);
+        if (_i2c->write(data[i]) != 1)
+        {
+            wait_us(i2c_bit_wait_us);
+            _i2c->stop();
+            return _i2cFAILURE;
+        }
+    }
+    if (!repeated)
+    {
+        wait_us(i2c_bit_wait_us);
+        _i2c->stop();
+    }
+    return _i2cSUCCESS;
+}
+
+int MyLCD::gotoCursor( int x, int y )
+{
+    char buff[4] = { ESC, 'L', x, y };
+
+    _column = x;
+    _row = y;
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+
+int MyLCD::home(void)
+{
+    char buff[2] = { ESC, 'H' };
+
+    _column = 0;
+    _row = 0;
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::clear(void)
+{
+    char buff[2] = { ESC, 'C' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::saveCustomCharacter(int romCharNum, char lcdCharData[])
+{
+    int ret;
+
+    char buff[3] = { ESC, 'S', romCharNum };
+
+    ret = writeBytes(buff, sizeof(buff), true);
+
+    if (ret == _i2cSUCCESS)
+    {
+        ret = writeBytes(lcdCharData, 8, false);
+    }
+    wait_ms(100);
+
+    return ret;
+}
+
+int MyLCD::mapCustomCharacter(int romCharNum, int lcdCharNum)
+{
+    char buff[4] = { ESC, 'M', romCharNum, lcdCharNum };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+
+int MyLCD::offDisplay(void)
+{
+    char buff[2] = { ESC, 'X' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::onDisplay(void)
+{
+    char buff[2] = { ESC, 'N' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::blinkCharacter(void)
+{
+    char buff[2] = { ESC, 'B' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::dispCursor(void)
+{
+    char buff[2] = { ESC, 'D' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::blinkCursor(void)
+{
+    char buff[2] = { ESC, 'E' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::hideCursor(void)
+{
+    char buff[2] = { ESC, 'H' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::moveLeftCursor(void)
+{
+    char buff[2] = { ESC, '-' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::moveRightCursor(void)
+{
+    char buff[2] = { ESC, '+' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::moveLeftDisplay(void)
+{
+    char buff[2] = { ESC, '<' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+int MyLCD::moveRightDisplay(void)
+{
+    char buff[2] = { ESC, '>' };
+
+    return writeBytes(buff, sizeof(buff));
+}
+
+// 一文字表示
+int MyLCD::printChar(char chr)
+{
+    return writeBytes(&chr, 1);
+}
+
+int MyLCD::printStr(const char *s)
+{
+    return writeBytes(s, strlen(s));
+}
+
+
+int MyLCD::_putc(int value)
+{
+    if (value == '\n')
+    {
+        _column = 0;
+        _row++;
+        if (_row >= rows())
+        {
+            _row = 0;
+        }
+    }
+    else
+    {
+        character(_column, _row, value);
+        _column++;
+        if (_column >= columns())
+        {
+            _column = 0;
+            _row++;
+            if (_row >= rows())
+            {
+                _row = 0;
+            }
+        }
+    }
+    return value;
+}
+
+int MyLCD::_getc()
+{
+    return -1;
+}
+
+void MyLCD::character(int column, int row, int c)
+{
+    gotoCursor(_column, row );
+    printChar(c);
+}
+
+int MyLCD::columns()
+{
+    return display_columns;
+}
+
+int MyLCD::rows()
+{
+    return display_rows;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MyLCD.h	Wed Dec 11 11:58:45 2013 +0000
@@ -0,0 +1,100 @@
+/**
+ *****************************************************************************
+ * File Name    : MyLCD.h
+ *
+ * Title        : ORGINAL I2C LCD Display Claass Header File
+ * Revision     : 0.1
+ * Notes        :
+ * Target Board : mbed NXP LPC1768, mbed LPC1114FN28  etc
+ * Tool Chain   : ????
+ *
+ * Revision History:
+ * When         Who         Description of change
+ * -----------  ----------- -----------------------
+ * 2012/12/06   Hiroshi M   init
+ *****************************************************************************
+ *
+ * Copyright (C) 2013 Hiroshi M, MIT License
+ *
+ * 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 __MYLCD_H_
+#define __MYLCD_H_
+
+/* Includes ----------------------------------------------------------------- */
+#include "mbed.h"
+/* typedef ------------------------------------------------------------------ */
+
+/* define ------------------------------------------------------------------- */
+#define ESC             0x1B
+#define I2C_ADDR_MYLCD  0x32
+#define _i2cSUCCESS     0
+#define _i2cFAILURE     1
+
+/* macro -------------------------------------------------------------------- */
+/* variables ---------------------------------------------------------------- */
+/* class -------------------------------------------------------------------- */
+class MyLCD : public Stream
+{
+private:
+    static const int i2c_addr = I2C_ADDR_MYLCD << 1;
+    static const int i2c_bit_wait_us = 20;
+    static const int i2c_command_wait_ms = 4;
+    static const int display_columns = 16;
+    static const int display_rows = 2;
+
+    I2C *_i2c;
+    int _column, _row;
+    int writeBytes(const char *data, int length, bool repeated=false);
+
+protected:
+    virtual int _putc(int value);
+    virtual int _getc();
+    
+    void character(int column, int row, int c);
+    int columns();
+    int rows();
+
+public:
+    MyLCD(I2C *i2c);
+#if DOXYGEN_ONLY
+    int putc(int value);
+    int printf(const char* format, ...);
+#endif
+    
+    int gotoCursor( int x, int y );
+    int home(void);
+    int clear(void);
+    int offDisplay(void);
+    int onDisplay(void);
+    int blinkCharacter(void);
+    int dispCursor(void);
+    int blinkCursor(void);
+    int hideCursor(void);
+    int moveLeftCursor(void);
+    int moveRightCursor(void);
+    int moveLeftDisplay(void);
+    int moveRightDisplay(void);
+    int printChar(char chr);
+    int printStr(const char *s);
+    
+    int saveCustomCharacter(int romCharNum, char lcdCharData[]);
+    int mapCustomCharacter(int romCharNum, int lcdCharNum);
+};
+
+#endif /* __MYLCD_H_ */