Diff: ili9163lcd.cpp

Revision:

0:c0be4e018a09

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ili9163lcd.cpp	Sat Jun 14 02:27:06 2014 +0000
@@ -0,0 +1,442 @@
+/**
+ * @file ili9163lcd.c
+ * @brief ILI9163 128x128 LCD Driver
+ *
+ * This code has been ported from the ili9163lcd library for mbed
+ * made by Jun Morita.
+ * Source form <http://files.noccylabs.info/lib430/liblcd/ili9163lcd_8c.html>
+ *
+ * This code has been ported from the ili9163lcd library for avr made
+ * by Simon Inns, to run on a msp430.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author Jun Morita (iccraft)
+ * @author Simon Inns <simon.inns@gmail.com>
+ * @author Christopher Vagnetoft (NoccyLabs)
+ * @copyright (C) 2012 Simon Inns
+ * @copyright parts (C) 2012 NoccyLabs
+ */
+
+#include "mbed.h"
+#include "font5x8.h"
+#include "ili9163lcd.h"
+
+// Connection of mbed pins.
+DigitalOut SCK_(D2);
+DigitalOut SDA_(D3);
+DigitalOut A0_(D4);
+DigitalOut RESET_(D5);
+DigitalOut CS_(D6);
+
+// Low-level LCD driving functions --------------------------------------------------------------------------
+
+// Reset the LCD hardware
+void lcdReset(void)
+{
+    // Reset pin is active low (0 = reset, 1 = ready)
+    RESET_ = 0;
+    wait_ms(50);
+
+    RESET_ = 1;
+    wait_ms(120);
+}
+
+void lcdWriteCommand(uint8_t address)
+{
+    uint8_t i;
+
+    CS_ = 0;
+    A0_ = 0;
+    for(i=0;i<8;i++){
+        if(address & 128)SDA_= 1; else SDA_ = 0;
+        SCK_ = 1;
+        address <<= 1;
+        SCK_ = 0;
+    }
+    wait_us(1);
+    CS_ = 1;
+}
+
+void lcdWriteParameter(uint8_t parameter)
+{  
+    uint8_t i;
+
+    CS_ = 0;
+    A0_ = 1;
+    for(i=0;i<8;i++){
+        if(parameter & 128)SDA_= 1; else SDA_ = 0;
+        SCK_ = 1;
+        parameter <<= 1;
+        SCK_ = 0;
+    }
+    wait_us(1);
+    CS_ = 1;
+}
+ 
+void lcdWriteData(uint8_t dataByte1, uint8_t dataByte2)
+{  
+    uint8_t i;
+
+    CS_ = 0;
+    A0_ = 1;
+    for(i=0;i<8;i++){
+        if(dataByte1 & 128)SDA_= 1; else SDA_ = 0;
+        SCK_ = 1;
+        dataByte1 <<= 1;
+        SCK_ = 0;
+    }
+    wait_us(1);
+    for(i=0;i<8;i++){
+        if(dataByte2 & 128)SDA_= 1; else SDA_ = 0;
+        SCK_ = 1;
+        dataByte2 <<= 1;
+        SCK_ = 0;
+    }
+    wait_us(1);
+    CS_ = 1;
+}
+
+// Initialise the display with the require screen orientation
+void lcdInitialise(uint8_t orientation)
+{   
+    CS_ = 1;
+    SCK_ = 0;
+    RESET_ = 1;
+   
+    // Hardware reset the LCD
+    lcdReset();
+    
+    lcdWriteCommand(EXIT_SLEEP_MODE);
+    wait_ms(5); // Wait for the screen to wake up
+    
+    lcdWriteCommand(SET_PIXEL_FORMAT);
+    lcdWriteParameter(0x05); // 16 bits per pixel
+   
+    lcdWriteCommand(SET_GAMMA_CURVE);
+    lcdWriteParameter(0x04); // Select gamma curve 3
+    
+    lcdWriteCommand(GAM_R_SEL);
+    lcdWriteParameter(0x01); // Gamma adjustment enabled
+    
+    lcdWriteCommand(POSITIVE_GAMMA_CORRECT);
+    lcdWriteParameter(0x3f); // 1st Parameter
+    lcdWriteParameter(0x25); // 2nd Parameter
+    lcdWriteParameter(0x1c); // 3rd Parameter
+    lcdWriteParameter(0x1e); // 4th Parameter
+    lcdWriteParameter(0x20); // 5th Parameter
+    lcdWriteParameter(0x12); // 6th Parameter
+    lcdWriteParameter(0x2a); // 7th Parameter
+    lcdWriteParameter(0x90); // 8th Parameter
+    lcdWriteParameter(0x24); // 9th Parameter
+    lcdWriteParameter(0x11); // 10th Parameter
+    lcdWriteParameter(0x00); // 11th Parameter
+    lcdWriteParameter(0x00); // 12th Parameter
+    lcdWriteParameter(0x00); // 13th Parameter
+    lcdWriteParameter(0x00); // 14th Parameter
+    lcdWriteParameter(0x00); // 15th Parameter
+     
+    lcdWriteCommand(NEGATIVE_GAMMA_CORRECT);
+    lcdWriteParameter(0x20); // 1st Parameter
+    lcdWriteParameter(0x20); // 2nd Parameter
+    lcdWriteParameter(0x20); // 3rd Parameter
+    lcdWriteParameter(0x20); // 4th Parameter
+    lcdWriteParameter(0x05); // 5th Parameter
+    lcdWriteParameter(0x00); // 6th Parameter
+    lcdWriteParameter(0x15); // 7th Parameter
+    lcdWriteParameter(0xa7); // 8th Parameter
+    lcdWriteParameter(0x3d); // 9th Parameter
+    lcdWriteParameter(0x18); // 10th Parameter
+    lcdWriteParameter(0x25); // 11th Parameter
+    lcdWriteParameter(0x2a); // 12th Parameter
+    lcdWriteParameter(0x2b); // 13th Parameter
+    lcdWriteParameter(0x2b); // 14th Parameter
+    lcdWriteParameter(0x3a); // 15th Parameter
+    
+    lcdWriteCommand(FRAME_RATE_CONTROL1);
+    lcdWriteParameter(0x08); // DIVA = 8
+    lcdWriteParameter(0x08); // VPA = 8
+    
+    lcdWriteCommand(DISPLAY_INVERSION);
+    lcdWriteParameter(0x07); // NLA = 1, NLB = 1, NLC = 1 (all on Frame Inversion)
+   
+    lcdWriteCommand(POWER_CONTROL1);
+    lcdWriteParameter(0x0a); // VRH = 10:  GVDD = 4.30
+    lcdWriteParameter(0x02); // VC = 2: VCI1 = 2.65
+      
+    lcdWriteCommand(POWER_CONTROL2);
+    lcdWriteParameter(0x02); // BT = 2: AVDD = 2xVCI1, VCL = -1xVCI1, VGH = 5xVCI1, VGL = -2xVCI1
+
+    lcdWriteCommand(VCOM_CONTROL1);
+    lcdWriteParameter(0x50); // VMH = 80: VCOMH voltage = 4.5
+    lcdWriteParameter(0x5b); // VML = 91: VCOML voltage = -0.225
+    
+    lcdWriteCommand(VCOM_OFFSET_CONTROL);
+    lcdWriteParameter(0x40); // nVM = 0, VMF = 64: VCOMH output = VMH, VCOML output = VML   
+    
+    lcdWriteCommand(SET_COLUMN_ADDRESS);
+    lcdWriteParameter(0x00); // XSH
+    lcdWriteParameter(0x00); // XSL
+    lcdWriteParameter(0x00); // XEH
+    lcdWriteParameter(0x7f); // XEL (128 pixels x)
+   
+    lcdWriteCommand(SET_PAGE_ADDRESS);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x7f); // 128 pixels y
+    
+    // Select display orientation
+    lcdWriteCommand(SET_ADDRESS_MODE);
+    lcdWriteParameter(orientation);
+
+    // Set the display to on
+    lcdWriteCommand(SET_DISPLAY_ON);
+    lcdWriteCommand(WRITE_MEMORY_START);
+}
+
+// LCD graphics functions -----------------------------------------------------------------------------------
+
+void lcdClearDisplay(uint16_t colour)
+{
+    uint16_t pixel;
+  
+    // Set the column address to 0-127
+    lcdWriteCommand(SET_COLUMN_ADDRESS);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x7f);
+
+    // Set the page address to 0-127
+    lcdWriteCommand(SET_PAGE_ADDRESS);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x7f);
+  
+    // Plot the pixels
+    lcdWriteCommand(WRITE_MEMORY_START);
+    for(pixel = 0; pixel < 16385; pixel++) lcdWriteData(colour >> 8, colour);
+}
+
+void lcdPlot(uint8_t x, uint8_t y, uint16_t colour)
+{
+    // Horizontal Address Start Position
+    lcdWriteCommand(SET_COLUMN_ADDRESS);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(x);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x7f);
+  
+    // Vertical Address end Position
+    lcdWriteCommand(SET_PAGE_ADDRESS);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(y);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x7f);
+
+    // Plot the point
+    lcdWriteCommand(WRITE_MEMORY_START);
+    lcdWriteData(colour >> 8, colour);
+}
+
+// Draw a line from x0, y0 to x1, y1
+// Note:    This is a version of Bresenham's line drawing algorithm
+//          It only draws lines from left to right!
+void lcdLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t colour)
+{
+    int16_t dy = y1 - y0;
+    int16_t dx = x1 - x0;
+    int16_t stepx, stepy;
+
+    if (dy < 0)
+    {
+        dy = -dy; stepy = -1; 
+    }
+    else stepy = 1; 
+
+    if (dx < 0)
+    {
+        dx = -dx; stepx = -1; 
+    }
+    else stepx = 1; 
+
+    dy <<= 1;                           // dy is now 2*dy
+    dx <<= 1;                           // dx is now 2*dx
+ 
+    lcdPlot(x0, y0, colour);
+
+    if (dx > dy) {
+        int fraction = dy - (dx >> 1);  // same as 2*dy - dx
+        while (x0 != x1)
+        {
+            if (fraction >= 0)
+            {
+                y0 += stepy;
+                fraction -= dx;         // same as fraction -= 2*dx
+            }
+
+            x0 += stepx;
+            fraction += dy;                 // same as fraction -= 2*dy
+            lcdPlot(x0, y0, colour);
+        }
+    }
+    else
+    {
+        int fraction = dx - (dy >> 1);
+        while (y0 != y1)
+        {
+            if (fraction >= 0)
+            {
+                x0 += stepx;
+                fraction -= dy;
+            }
+
+            y0 += stepy;
+            fraction += dx;
+            lcdPlot(x0, y0, colour);
+        }
+    }
+}
+
+// Draw a rectangle between x0, y0 and x1, y1
+void lcdRectangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t colour)
+{
+    lcdLine(x0, y0, x0, y1, colour);
+    lcdLine(x0, y1, x1, y1, colour);
+    lcdLine(x1, y0, x1, y1, colour);
+    lcdLine(x0, y0, x1, y0, colour);
+}
+
+// Draw a filled rectangle
+// Note:    y1 must be greater than y0  and x1 must be greater than x0
+//          for this to work
+void lcdFilledRectangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t colour)
+{
+    uint16_t pixels;
+            
+    // To speed up plotting we define a x window with the width of the 
+    // rectangle and then just output the required number of bytes to
+    // fill down to the end point
+    
+    lcdWriteCommand(SET_COLUMN_ADDRESS); // Horizontal Address Start Position
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(x0);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(x1);
+  
+    lcdWriteCommand(SET_PAGE_ADDRESS); // Vertical Address end Position
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(y0);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x7f);
+        
+    lcdWriteCommand(WRITE_MEMORY_START);
+    
+    for (pixels = 0; pixels < (((x1 - x0) + 1) * ((y1 - y0) + 1)); pixels++)
+        lcdWriteData(colour >> 8, colour);;
+}
+
+// Draw a circle
+// Note:    This is another version of Bresenham's line drawing algorithm.
+//          There's plenty of documentation on the web if you are curious
+//          how this works.
+void lcdCircle(int16_t xCentre, int16_t yCentre, int16_t radius, uint16_t colour)
+{
+    int16_t x = 0, y = radius;
+    int16_t d = 3 - (2 * radius);
+ 
+    while(x <= y)
+    {
+        lcdPlot(xCentre + x, yCentre + y, colour);
+        lcdPlot(xCentre + y, yCentre + x, colour);
+        lcdPlot(xCentre - x, yCentre + y, colour);
+        lcdPlot(xCentre + y, yCentre - x, colour);
+        lcdPlot(xCentre - x, yCentre - y, colour);
+        lcdPlot(xCentre - y, yCentre - x, colour);
+        lcdPlot(xCentre + x, yCentre - y, colour);
+        lcdPlot(xCentre - y, yCentre + x, colour);
+
+        if (d < 0) d += (4 * x) + 6;
+        else
+        {
+            d += (4 * (x - y)) + 10;
+            y -= 1;
+        }
+
+        x++;
+    }
+}
+
+// LCD text manipulation functions --------------------------------------------------------------------------
+
+// Plot a character at the specified x, y co-ordinates (top left hand corner of character)
+void lcdPutCh(unsigned char character, uint8_t x, uint8_t y, uint16_t fgColour, uint16_t bgColour)
+{
+    uint8_t row, column;
+    
+    // To speed up plotting we define a x window of 6 pixels and then
+    // write out one row at a time.  This means the LCD will correctly
+    // update the memory pointer saving us a good few bytes
+    
+    lcdWriteCommand(SET_COLUMN_ADDRESS); // Horizontal Address Start Position
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(x);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(x+5);
+  
+    lcdWriteCommand(SET_PAGE_ADDRESS); // Vertical Address end Position
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(y);
+    lcdWriteParameter(0x00);
+    lcdWriteParameter(0x7f);
+        
+    lcdWriteCommand(WRITE_MEMORY_START);
+    
+    // Plot the font data
+    for (row = 0; row < 8; row++)
+    {
+        for (column = 0; column < 6; column++)
+        {
+            if ((font5x8[character][column]) & (1 << row))
+                lcdWriteData(fgColour >> 8, fgColour);
+            else lcdWriteData(bgColour >> 8, bgColour);
+        }
+    }
+}
+
+// Plot a string of characters to the LCD
+void lcdPutS(const char *string, uint8_t x, uint8_t y, uint16_t fgColour, uint16_t bgColour)
+{
+    uint8_t origin = x;
+
+    for (uint8_t characterNumber = 0; characterNumber < strlen(string); characterNumber++)
+    {
+        // Check if we are out of bounds and move to 
+        // the next line if we are
+        if (x > 121)
+        {
+            x = origin;
+            y += 8;
+        }
+
+        // If we move past the bottom of the screen just exit
+        if (y > 120) break;
+
+        // Plot the current character
+        lcdPutCh(string[characterNumber], x, y, fgColour, bgColour);
+        x += 6;
+    }
+}