Diff: SeeedGrayOLED.cpp

Revision:

0:c035afedef89

Child:

1:05a64dcb7603

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SeeedGrayOLED.cpp	Fri Dec 19 07:58:04 2014 +0000
@@ -0,0 +1,440 @@
+/*
+ * SeeedGrayOLED.cpp
+ * SSD1327 Gray OLED Driver Library
+ *
+ * Copyright (c) 2011 seeed technology inc.
+ * Author        :   Visweswara R
+ * Create Time   :   Dec 2011
+ * Change Log    :
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "mbed.h"
+#include "SeeedGrayOLED.h"
+#include <stdio.h>
+#include <string.h>
+
+// 8x8 Font ASCII 32 - 127 Implemented
+// Users can modify this to support more characters(glyphs)
+// BasicFont is placed in code memory.
+
+// This font can be freely used without any restriction(It is placed in public domain)
+// const unsigned char BasicFont[][8] PROGMEM=
+
+
+const uint8_t BasicFont[][8] = {
+  {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
+  {0x00,0x00,0x5F,0x00,0x00,0x00,0x00,0x00},
+  {0x00,0x00,0x07,0x00,0x07,0x00,0x00,0x00},
+  {0x00,0x14,0x7F,0x14,0x7F,0x14,0x00,0x00},
+  {0x00,0x24,0x2A,0x7F,0x2A,0x12,0x00,0x00},
+  {0x00,0x23,0x13,0x08,0x64,0x62,0x00,0x00},
+  {0x00,0x36,0x49,0x55,0x22,0x50,0x00,0x00},
+  {0x00,0x00,0x05,0x03,0x00,0x00,0x00,0x00},
+  {0x00,0x1C,0x22,0x41,0x00,0x00,0x00,0x00},
+  {0x00,0x41,0x22,0x1C,0x00,0x00,0x00,0x00},
+  {0x00,0x08,0x2A,0x1C,0x2A,0x08,0x00,0x00},
+  {0x00,0x08,0x08,0x3E,0x08,0x08,0x00,0x00},
+  {0x00,0xA0,0x60,0x00,0x00,0x00,0x00,0x00},
+  {0x00,0x08,0x08,0x08,0x08,0x08,0x00,0x00},
+  {0x00,0x60,0x60,0x00,0x00,0x00,0x00,0x00},
+  {0x00,0x20,0x10,0x08,0x04,0x02,0x00,0x00},
+  {0x00,0x3E,0x51,0x49,0x45,0x3E,0x00,0x00},
+  {0x00,0x00,0x42,0x7F,0x40,0x00,0x00,0x00},
+  {0x00,0x62,0x51,0x49,0x49,0x46,0x00,0x00},
+  {0x00,0x22,0x41,0x49,0x49,0x36,0x00,0x00},
+  {0x00,0x18,0x14,0x12,0x7F,0x10,0x00,0x00},
+  {0x00,0x27,0x45,0x45,0x45,0x39,0x00,0x00},
+  {0x00,0x3C,0x4A,0x49,0x49,0x30,0x00,0x00},
+  {0x00,0x01,0x71,0x09,0x05,0x03,0x00,0x00},
+  {0x00,0x36,0x49,0x49,0x49,0x36,0x00,0x00},
+  {0x00,0x06,0x49,0x49,0x29,0x1E,0x00,0x00},
+  {0x00,0x00,0x36,0x36,0x00,0x00,0x00,0x00},
+  {0x00,0x00,0xAC,0x6C,0x00,0x00,0x00,0x00},
+  {0x00,0x08,0x14,0x22,0x41,0x00,0x00,0x00},
+  {0x00,0x14,0x14,0x14,0x14,0x14,0x00,0x00},
+  {0x00,0x41,0x22,0x14,0x08,0x00,0x00,0x00},
+  {0x00,0x02,0x01,0x51,0x09,0x06,0x00,0x00},
+  {0x00,0x32,0x49,0x79,0x41,0x3E,0x00,0x00},
+  {0x00,0x7E,0x09,0x09,0x09,0x7E,0x00,0x00},
+  {0x00,0x7F,0x49,0x49,0x49,0x36,0x00,0x00},
+  {0x00,0x3E,0x41,0x41,0x41,0x22,0x00,0x00},
+  {0x00,0x7F,0x41,0x41,0x22,0x1C,0x00,0x00},
+  {0x00,0x7F,0x49,0x49,0x49,0x41,0x00,0x00},
+  {0x00,0x7F,0x09,0x09,0x09,0x01,0x00,0x00},
+  {0x00,0x3E,0x41,0x41,0x51,0x72,0x00,0x00},
+  {0x00,0x7F,0x08,0x08,0x08,0x7F,0x00,0x00},
+  {0x00,0x41,0x7F,0x41,0x00,0x00,0x00,0x00},
+  {0x00,0x20,0x40,0x41,0x3F,0x01,0x00,0x00},
+  {0x00,0x7F,0x08,0x14,0x22,0x41,0x00,0x00},
+  {0x00,0x7F,0x40,0x40,0x40,0x40,0x00,0x00},
+  {0x00,0x7F,0x02,0x0C,0x02,0x7F,0x00,0x00},
+  {0x00,0x7F,0x04,0x08,0x10,0x7F,0x00,0x00},
+  {0x00,0x3E,0x41,0x41,0x41,0x3E,0x00,0x00},
+  {0x00,0x7F,0x09,0x09,0x09,0x06,0x00,0x00},
+  {0x00,0x3E,0x41,0x51,0x21,0x5E,0x00,0x00},
+  {0x00,0x7F,0x09,0x19,0x29,0x46,0x00,0x00},
+  {0x00,0x26,0x49,0x49,0x49,0x32,0x00,0x00},
+  {0x00,0x01,0x01,0x7F,0x01,0x01,0x00,0x00},
+  {0x00,0x3F,0x40,0x40,0x40,0x3F,0x00,0x00},
+  {0x00,0x1F,0x20,0x40,0x20,0x1F,0x00,0x00},
+  {0x00,0x3F,0x40,0x38,0x40,0x3F,0x00,0x00},
+  {0x00,0x63,0x14,0x08,0x14,0x63,0x00,0x00},
+  {0x00,0x03,0x04,0x78,0x04,0x03,0x00,0x00},
+  {0x00,0x61,0x51,0x49,0x45,0x43,0x00,0x00},
+  {0x00,0x7F,0x41,0x41,0x00,0x00,0x00,0x00},
+  {0x00,0x02,0x04,0x08,0x10,0x20,0x00,0x00},
+  {0x00,0x41,0x41,0x7F,0x00,0x00,0x00,0x00},
+  {0x00,0x04,0x02,0x01,0x02,0x04,0x00,0x00},
+  {0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00},
+  {0x00,0x01,0x02,0x04,0x00,0x00,0x00,0x00},
+  {0x00,0x20,0x54,0x54,0x54,0x78,0x00,0x00},
+  {0x00,0x7F,0x48,0x44,0x44,0x38,0x00,0x00},
+  {0x00,0x38,0x44,0x44,0x28,0x00,0x00,0x00},
+  {0x00,0x38,0x44,0x44,0x48,0x7F,0x00,0x00},
+  {0x00,0x38,0x54,0x54,0x54,0x18,0x00,0x00},
+  {0x00,0x08,0x7E,0x09,0x02,0x00,0x00,0x00},
+  {0x00,0x18,0xA4,0xA4,0xA4,0x7C,0x00,0x00},
+  {0x00,0x7F,0x08,0x04,0x04,0x78,0x00,0x00},
+  {0x00,0x00,0x7D,0x00,0x00,0x00,0x00,0x00},
+  {0x00,0x80,0x84,0x7D,0x00,0x00,0x00,0x00},
+  {0x00,0x7F,0x10,0x28,0x44,0x00,0x00,0x00},
+  {0x00,0x41,0x7F,0x40,0x00,0x00,0x00,0x00},
+  {0x00,0x7C,0x04,0x18,0x04,0x78,0x00,0x00},
+  {0x00,0x7C,0x08,0x04,0x7C,0x00,0x00,0x00},
+  {0x00,0x38,0x44,0x44,0x38,0x00,0x00,0x00},
+  {0x00,0xFC,0x24,0x24,0x18,0x00,0x00,0x00},
+  {0x00,0x18,0x24,0x24,0xFC,0x00,0x00,0x00},
+  {0x00,0x00,0x7C,0x08,0x04,0x00,0x00,0x00},
+  {0x00,0x48,0x54,0x54,0x24,0x00,0x00,0x00},
+  {0x00,0x04,0x7F,0x44,0x00,0x00,0x00,0x00},
+  {0x00,0x3C,0x40,0x40,0x7C,0x00,0x00,0x00},
+  {0x00,0x1C,0x20,0x40,0x20,0x1C,0x00,0x00},
+  {0x00,0x3C,0x40,0x30,0x40,0x3C,0x00,0x00},
+  {0x00,0x44,0x28,0x10,0x28,0x44,0x00,0x00},
+  {0x00,0x1C,0xA0,0xA0,0x7C,0x00,0x00,0x00},
+  {0x00,0x44,0x64,0x54,0x4C,0x44,0x00,0x00},
+  {0x00,0x08,0x36,0x41,0x00,0x00,0x00,0x00},
+  {0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00},
+  {0x00,0x41,0x36,0x08,0x00,0x00,0x00,0x00},
+  {0x00,0x02,0x01,0x01,0x02,0x01,0x00,0x00},
+  {0x00,0x02,0x05,0x05,0x02,0x00,0x00,0x00} 
+};
+
+
+SeeedGrayOLED::SeeedGrayOLED(PinName sda, PinName scl):
+    _device(sda, scl)
+{    
+}
+
+
+void SeeedGrayOLED::init(void)
+{
+    sendCommand(0xFD); // Unlock OLED driver IC MCU interface from entering command. i.e: Accept commands
+    sendCommand(0x12);
+    sendCommand(0xAE); // Set display off
+    sendCommand(0xA8); // set multiplex ratio
+    sendCommand(0x5F); // 96
+    sendCommand(0xA1); // set display start line
+    sendCommand(0x00);
+    sendCommand(0xA2); // set display offset
+    sendCommand(0x60);
+    sendCommand(0xA0); // set remap
+    sendCommand(0x46);
+    sendCommand(0xAB); // set vdd internal
+    sendCommand(0x01); //
+    sendCommand(0x81); // set contrasr
+    sendCommand(0x53); // 100 nit
+    sendCommand(0xB1); // Set Phase Length
+    sendCommand(0X51); //
+    sendCommand(0xB3); // Set Display Clock Divide Ratio/Oscillator Frequency
+    sendCommand(0x01);
+    sendCommand(0xB9); //
+    sendCommand(0xBC); // set pre_charge voltage/VCOMH
+    sendCommand(0x08); // (0x08);
+    sendCommand(0xBE); // set VCOMH
+    sendCommand(0X07); // (0x07);
+    sendCommand(0xB6); // Set second pre-charge period
+    sendCommand(0x01); //
+    sendCommand(0xD5); // enable second precharge and enternal vsl
+    sendCommand(0X62); // (0x62);
+    sendCommand(0xA4); // Set Normal Display Mode
+    sendCommand(0x2E); // Deactivate Scroll
+    sendCommand(0xAF); // Switch on display
+    wait_ms(100);
+
+    // Row Address
+    sendCommand(0x75);    // Set Row Address 
+    sendCommand(0x00);    // Start 0
+    sendCommand(0x5f);    // End 95 
+
+
+    // Column Address
+    sendCommand(0x15);    // Set Column Address 
+    sendCommand(0x08);    // Start from 8th Column of driver IC. This is 0th Column for OLED 
+    sendCommand(0x37);    // End at  (8 + 47)th column. Each Column has 2 pixels(segments)
+
+    // Init gray level for text. Default:Brightest White
+    grayH= 0xF0;
+    grayL= 0x0F;
+}
+
+void SeeedGrayOLED::sendCommand(unsigned char command)
+{
+    int transmissionSuccessful;
+    _device.start();
+    transmissionSuccessful  = _device.write(SeeedGrayOLED_Address << 1);
+    transmissionSuccessful |= _device.write(SeeedGrayOLED_Command_Mode);
+    transmissionSuccessful |= _device.write(command);
+    _device.stop();
+    // return (transmissionSuccessful);    
+}
+
+void SeeedGrayOLED::setContrastLevel(unsigned char ContrastLevel)
+{
+    sendCommand(SeeedGrayOLED_Set_ContrastLevel_Cmd);
+    sendCommand(ContrastLevel);
+}
+
+void SeeedGrayOLED::setHorizontalMode()
+{
+    sendCommand(0xA0); // remap to
+    sendCommand(0x42); // horizontal mode
+
+    // Row Address
+    sendCommand(0x75);    // Set Row Address 
+    sendCommand(0x00);    // Start 0
+    sendCommand(0x5f);    // End 95 
+
+    // Column Address
+    sendCommand(0x15);    // Set Column Address 
+    sendCommand(0x08);    // Start from 8th Column of driver IC. This is 0th Column for OLED 
+    sendCommand(0x37);    // End at  (8 + 47)th column. Each Column has 2 pixels(or segments)
+}
+
+void SeeedGrayOLED::setVerticalMode()
+{
+    sendCommand(0xA0); // remap to
+    sendCommand(0x46); // Vertical mode
+}
+
+void SeeedGrayOLED::setTextXY(unsigned char Row, unsigned char Column)
+{
+    //Column Address
+    sendCommand(0x15);             /* Set Column Address */
+    sendCommand(0x08+(Column*4));  /* Start Column: Start from 8 */
+    sendCommand(0x37);             /* End Column */
+    // Row Address
+    sendCommand(0x75);             /* Set Row Address */
+    sendCommand(0x00+(Row*8));     /* Start Row*/
+    sendCommand(0x07+(Row*8));     /* End Row*/
+}
+
+void SeeedGrayOLED::clearDisplay()
+{
+    unsigned char i,j;
+    for(j=0;j<48;j++)
+    {
+        for(i=0;i<96;i++)  //clear all columns
+        {
+            sendData(0x00);
+        }
+    }
+
+}
+
+void SeeedGrayOLED::sendData(unsigned char Data)
+{
+    int transmissionSuccessful;
+    _device.start();
+    transmissionSuccessful  = _device.write(SeeedGrayOLED_Address << 1);
+    transmissionSuccessful |= _device.write(SeeedGrayOLED_Data_Mode);
+    transmissionSuccessful |= _device.write(Data);
+    _device.stop();
+    // return (transmissionSuccessful);       
+}
+
+void SeeedGrayOLED::setGrayLevel(unsigned char grayLevel)
+{
+    grayH = (grayLevel << 4) & 0xF0;
+    grayL =  grayLevel & 0x0F;
+}
+
+void SeeedGrayOLED::putChar(unsigned char C)
+{
+    if(C < 32 || C > 127) //Ignore non-printable ASCII characters. This can be modified for multilingual font.
+    {
+        C=' '; //Space
+    }   
+
+    
+    for(char i=0;i<8;i=i+2)
+    {
+        for(char j=0;j<8;j++)
+        {
+            // Character is constructed two pixel at a time using vertical mode from the default 8x8 font
+            char c=0x00;
+            char bit1=(BasicFont[C-32][i]   >> j)  & 0x01;  
+            char bit2=(BasicFont[C-32][i+1] >> j)  & 0x01;
+            // Each bit is changed to a nibble
+            c|=(bit1)?grayH:0x00;
+            c|=(bit2)?grayL:0x00;
+            sendData(c);
+        }
+    }
+}
+
+void SeeedGrayOLED::putString(const char *String)
+{
+    unsigned char i=0;
+    while(String[i])
+    {
+        putChar(String[i]);     
+        i++;
+    }
+}
+
+unsigned char SeeedGrayOLED::putNumber(long long_num)
+{
+    unsigned char char_buffer[10]="";
+    unsigned char i = 0;
+    unsigned char f = 0;
+
+    if (long_num < 0)
+    {
+        f=1;
+        putChar('-');
+        long_num = -long_num;
+    }
+    else if (long_num == 0)
+    {
+        f=1;
+        putChar('0');
+        return f;
+    }
+
+    while (long_num > 0)
+    {
+        char_buffer[i++] = long_num % 10;
+        long_num /= 10;
+    }
+
+    f=f+i;
+    for(; i > 0; i--)
+    {
+        putChar('0'+ char_buffer[i - 1]);
+    }
+    return f;
+
+}
+
+
+
+void SeeedGrayOLED::drawBitmap(unsigned char *bitmaparray,int bytes)
+{
+    char localAddressMode = addressingMode;
+    if(addressingMode != HORIZONTAL_MODE)
+    {
+        //Bitmap is drawn in horizontal mode
+        setHorizontalMode();
+    }
+
+    for(int i=0;i<bytes;i++)
+    {
+
+    for(int j=0;j<8;j=j+2) 
+    {
+        char c=0x00;
+        char bit1=bitmaparray[i] <<  j    & 0x80;  
+        char bit2=bitmaparray[i] << (j+1) & 0x80;
+
+        // Each bit is changed to a nibble
+        c|=(bit1)?grayH:0x00;
+        // Each bit is changed to a nibble
+        c|=(bit2)?grayL:0x00;
+        sendData(c);
+     }
+    }
+    if(localAddressMode == VERTICAL_MODE)
+    {
+        //If Vertical Mode was used earlier, restore it.
+        setVerticalMode();
+    }
+
+}
+
+void SeeedGrayOLED::setHorizontalScrollProperties(bool direction,unsigned char startRow, unsigned char endRow,unsigned char startColumn, unsigned char endColumn, unsigned char scrollSpeed)
+{
+    /*
+Use the following defines for 'direction' :
+
+ Scroll_Left            
+ Scroll_Right           
+
+Use the following defines for 'scrollSpeed' :
+
+ Scroll_2Frames     
+ Scroll_3Frames
+ Scroll_4Frames
+ Scroll_5Frames 
+ Scroll_25Frames
+ Scroll_64Frames
+ Scroll_128Frames
+ Scroll_256Frames
+
+*/
+
+    if(Scroll_Right == direction)
+    {
+        //Scroll Right
+        sendCommand(0x27);
+    }
+    else
+    {
+        //Scroll Left  
+        sendCommand(0x26);
+    }
+    sendCommand(0x00);       //Dummmy byte
+    sendCommand(startRow);
+    sendCommand(scrollSpeed);
+    sendCommand(endRow);
+    sendCommand(startColumn+8);
+    sendCommand(endColumn+8);
+    sendCommand(0x00);      //Dummmy byte
+
+}
+
+void SeeedGrayOLED::activateScroll()
+{
+    sendCommand(SeeedGrayOLED_Activate_Scroll_Cmd);
+}
+
+void SeeedGrayOLED::deactivateScroll()
+{
+    sendCommand(SeeedGrayOLED_Dectivate_Scroll_Cmd);
+}
+
+void SeeedGrayOLED::setNormalDisplay()
+{
+    sendCommand(SeeedGrayOLED_Normal_Display_Cmd);
+}
+
+void SeeedGrayOLED::setInverseDisplay()
+{
+    sendCommand(SeeedGrayOLED_Inverse_Display_Cmd);
+}
+
+