Andrew R
This is the debugged version of this driver.
Diff: main.cpp
- Revision:
- 0:901166f03471
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Nov 21 04:09:29 2013 +0000
@@ -0,0 +1,482 @@
+/***********************************************************************************/
+/***** Newhaven NHD-5.7-640480WF-CTXL# Display Driver **********/
+/***** for mbed (www.mbed,org) NXP LPC1768 32 bit ARM MCU ******/
+/********* Adapted by Andrew C. Russell, March 2011 ***********/
+
+/************I hereby acknowledge and thank the following ******/
+/***software authors whose code I have adapted and/or adopted***/
+/*******************to create these drivers:- ******************/
+
+//Curt Lagerstam - Newhaven Display International, LLC for the dispay initialization.
+//James P Lynch - code adapted from his Nokia LCD display tutorial at
+//http://www.sparkfun.com/tutorial/Nokia%206100%20LCD%20Display%20Driver.pdf
+//Akifumi 'Tedd' Okano for assistance and adapting the .bmp display driver
+/***********************************************************************************/
+
+#include "mbed.h"
+#include "font.h"
+#include "stdlib.h"
+#include "string.h"
+
+
+/***********************************************************************************/
+/********************************** Colors *****************************************/
+/********* taken directly from http://web.njit.edu/~kevin/rgb.txt.html**************/
+#define BLACK 0x000000
+#define WHITE 0xFFFFFF
+#define BLACK 0x000000
+#define RED 0xFF0000
+#define GREEN 0x00FF00
+#define BLUE 0x0000FF
+#define GREY 0xBEBEBE
+#define DEEPINK 0xFF1493
+
+#define PASET 0x2B
+#define CASET 0x2A
+#define DISON 0x29
+#define DISOFF 0x28
+#define DEEPSLEEP 0xE5
+#define RAMWR 0x2C
+#define RAMCT 0x3C
+#define RESET 0x01
+#define DISINV 0x21
+#define DISNOR 0x20
+#define NOP 0x00
+#define XMAX 640
+#define YMAX 480
+#define TRUE 1
+
+// Font sizes
+#define SMALL 0
+#define MEDIUM 1
+#define LARGE 2
+
+//---------------------------------------------------------
+DigitalOut CS(p13); /* chip select the SSD1963 active LOW */
+//DigitalOut RS(p14); /* reset to SSD1963 - not used in this implementation*/
+DigitalOut nWR(p15); /* write out to SSD1963 active LOW */
+DigitalOut nRD(p16); /* read data from SSD1963 active LOW - but not used */
+DigitalOut DC(p17); /* Data/Command Select: 1=Command, 0=Data); */
+DigitalOut myled(LED1); /* for test purposes only - on the mbed module */
+
+/* data bus I/O pins */
+BusOut DB(p5,p6,p7,p8,p9,p10,p11,p12); /* databus D0-D7 */
+/* forward references */
+unsigned int fill;
+unsigned int radius;
+
+//unsigned char FONT6x8[97][8];
+//unsigned char FONT8x8[97][8];
+//unsigned char FONT8x16[97][8];
+unsigned char command;
+unsigned char data1;
+int DOWN;
+int RIGHT;
+void LCDSetXY(unsigned int x,unsigned int y);
+void LCDClearScreen(void);
+//void LCDSetXY(int x, int y);
+void LCDSetPixel(unsigned int x, unsigned int y, unsigned int color);
+void LCDSetLine(int x1, int y1, int x2, int y2, int color);
+void LCDSetRect(unsigned int x0, unsigned int y0, unsigned int x1, unsigned int y1, unsigned int fill, unsigned int color);
+void LCDSetCircle(unsigned int x0, unsigned int y0, unsigned int radius, unsigned int color);
+void LCDPutChar(char c, unsigned int x, unsigned int y, unsigned int size, unsigned int fcolor, unsigned int bcolor);
+void LCDPutString (char *lcd_string, const char *font_style, unsigned char x, unsigned char y,
+ unsigned char fcolor, unsigned char bcolor);
+
+//******************************************************************************
+void Write_Command(unsigned char command) {
+ CS=1; /* just to make sure */
+ nRD = 1; /* make sure the RD is HIGH just to be sure */
+ DC=0;
+ nWR = 0;
+ CS=0;
+ DB=command;
+ CS = 1;
+ nWR = 1;
+
+}
+//;******************************************************************************
+void Write_Data(unsigned char data1) {
+ CS=1; /* just to make sure */
+ nRD = 1;
+ DC=1;
+ nWR = 0;
+ CS=0;
+ DB=data1;//write(data1);
+ CS = 1;
+ nWR = 1;
+}
+
+//====================================================
+void Command_Write(unsigned char REG,unsigned char VALUE) {
+ Write_Command(REG);
+ Write_Data(VALUE);
+}
+//======================================================
+void SendData(unsigned long color) {
+ Write_Data((color)>>16); //red
+ Write_Data((color)>>8); //green
+ Write_Data(color); //blue
+}
+/********************************************************************************/
+void WindowSet(unsigned int s_x,unsigned int e_x,unsigned int s_y,unsigned int e_y) {
+ Write_Command(CASET); //SET page address
+ Write_Data((s_x)>>8); //SET start page address=0
+ Write_Data(s_x);
+ Write_Data((e_x)>>8); //SET end page address=639
+ Write_Data(e_x);
+ Write_Command(PASET); //SET column address
+ Write_Data((s_y)>>8); //SET start column address=0
+ Write_Data(s_y);
+ Write_Data((e_y)>>8); //SET end column address=479
+ Write_Data(e_y);
+}
+
+/***************************************************************************/
+/* this routine locates the screen pointer at position XY in the frame buffer */
+void LCDSetXY(unsigned int x,unsigned int y) {
+ Write_Command(CASET); //SET page address
+ Write_Data((x)>>8); //SET start page address=0
+ Write_Data(x);
+ Write_Data((XMAX)>>8); //SET end page address=XMAX
+ Write_Data(XMAX);
+ Write_Command(PASET); //SET column address
+ Write_Data((y)>>8); //SET start column address=0
+ Write_Data(y);
+ Write_Data((YMAX)>>8); //SET end column address=YMAX
+ Write_Data(YMAX);
+ Write_Command(RAMWR); //ready to now start writing the data
+ //when returnung to the caller
+}
+
+/***************************************************************************/
+// initialize controller
+void Init_SSD1963 (void) {
+
+ Write_Command(0x01); //Software Reset
+ wait_ms(10);
+ Write_Command(0x01); //Software Reset
+ wait_ms(10);
+ Write_Command(0x01); //Software Reset
+ wait_ms(10);
+ Command_Write(0xe0,0x01); //START PLL
+ wait_us(1);
+ Command_Write(0xe0,0x03); //LOCK PLL
+ Write_Command(0xb0); //SET LCD MODE SET TFT 18Bits MODE
+ Write_Data(0x0c); //SET TFT MODE & hsync+Vsync+DEN MODE
+ Write_Data(0x80); //SET TFT MODE & hsync+Vsync+DEN MODE
+ Write_Data(0x02); //SET horizontal size=640-1 HightByte
+ Write_Data(0x7f); //SET horizontal size=640-1 LowByte
+ Write_Data(0x01); //SET vertical size=480-1 HightByte
+ Write_Data(0xdf); //SET vertical size=480-1 LowByte
+ Write_Data(0x00); //SET even/odd line RGB seq.=RGB
+ Command_Write(0xf0,0x00); //SET pixel data I/F format=8bit
+ Command_Write(0x3a,0x60); // SET R G B format = 6 6 6
+ Write_Command(0xe6); //SET PCLK freq=4.94MHz ; pixel clock frequency
+ Write_Data(0x02);
+ Write_Data(0xff);
+ Write_Data(0xff);
+ Write_Command(0xb4); //SET HBP,
+ Write_Data(0x02); //SET HSYNC Total=760
+ Write_Data(0xf8);
+ Write_Data(0x00); //SET HBP 68
+ Write_Data(0x44);
+ Write_Data(0x0f); //SET VBP 16=15+1
+ Write_Data(0x00); //SET Hsync pulse start position
+ Write_Data(0x00);
+ Write_Data(0x00); //SET Hsync pulse subpixel start position
+ Write_Command(0xb6); //SET VBP,
+ Write_Data(0x01); //SET Vsync total
+ Write_Data(0xf8);
+ Write_Data(0x00); //SET VBP=19
+ Write_Data(0x13);
+ Write_Data(0x07); //SET Vsync pulse 8=7+1
+ Write_Data(0x00); //SET Vsync pulse start position
+ Write_Data(0x00);
+ Write_Command(0x2a); //SET column address
+ Write_Data(0x00); //SET start column address=0
+ Write_Data(0x00);
+ Write_Data(0x02); //SET end column address=639
+ Write_Data(0x7f);
+ Write_Command(0x2b); //SET page address
+ Write_Data(0x00); //SET start page address=0
+ Write_Data(0x00);
+ Write_Data(0x01); //SET end page address=479
+ Write_Data(0xdf);
+ Write_Command(0x29); //SET display on
+}
+
+//========================== This section displays 4 blocks of colour =================================
+void QUADS() {
+ unsigned int i,j;
+ WindowSet(0x0000,0x027f,0x0000,0x01df); /*this incorprates Write_Command*/
+ Write_Command(RAMWR); /* start writing the data to memory */
+ for (j= 0 ;j<240;j++) {
+ for (i=0;i<320;i++) {
+ SendData(0x00FF00); //GREEN
+ }
+ for (i=0;i<320;i++) {
+ SendData(0xFF0000); //RED
+ }
+ }
+ for (j= 0 ;j<240;j++) {
+ for (i=0;i<320;i++) {
+ SendData(0xBEBEBE); //GREY
+ }
+ for (i=0;i<320;i++) {
+ SendData(0xFF1493); //DEEP PINK
+ }
+ }
+}
+/********************************************************************************/
+void clear_to_color(void) {
+ int m,n;
+ WindowSet(0,640,0,480); // 0-640 wide by 0-480 high
+ Write_Command(RAMWR);
+ for (m=0;m<480;m++) {
+ for (n=0;n<640;n++) {
+ SendData(BLUE);
+ }
+ }
+}
+
+/***************************************************************************/
+/******* this routine lights up a single pixel to a specific colour ********/
+void LCDSetPixel(unsigned int x,unsigned int y, unsigned int color) {
+ Write_Command(CASET); //SET page address
+ Write_Data((x)>>8); //SET start page address=0
+ Write_Data(x);
+ Write_Data((XMAX)>>8); //SET end page address=XMAX
+ Write_Data(XMAX);
+ Write_Command(PASET); //SET column address
+ Write_Data((y)>>8); //SET start column address=0
+ Write_Data(y);
+ Write_Data((YMAX)>>8); //SET end column address=YMAX
+ Write_Data(YMAX);
+ Write_Command(RAMWR); //ready to now start writing the data
+ //when returnung to the caller
+ SendData(color);
+ Write_Command(NOP);
+}
+/***************************************************************************/
+/*********This routine draws a line between 2 points on the screen**********/
+void LCDSetLine(int x0, int y0, int x1, int y1, int color) {
+ int dy = y1 - y0;
+ int dx = x1 - x0;
+ int 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
+ LCDSetPixel(x0, y0, color);
+ 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
+ LCDSetPixel(x0, y0, color);
+ }
+ } else {
+ int fraction = dx - (dy >> 1);
+ while (y0 != y1) {
+ if (fraction >= 0) {
+ x0 += stepx;
+ fraction -= dy;
+ }
+ y0 += stepy;
+ fraction += dx;
+ LCDSetPixel(x0, y0, color);
+ }
+ }
+}
+/***************************************************************************/
+/********** draw a rectangle, filled or not filled *************************/
+void LCDSetRect(unsigned int x0, unsigned int y0, unsigned int x1, unsigned int y1, unsigned int fill, unsigned int color) {
+ unsigned int xmin, xmax, ymin, ymax;
+ int i;
+//unsigned char FILL;
+// check if the rectangle is to be filled
+ if (fill == TRUE) {
+// best way to create a filled rectangle is to define a drawing box
+// and loop two pixels at a time
+// calculate the min and max for x and y directions
+ xmin = (x0 <= x1) ? x0 : x1;
+ xmax = (x0 > x1) ? x0 : x1;
+ ymin = (y0 <= y1) ? y0 : y1;
+ ymax = (y0 > y1) ? y0 : y1;
+ Write_Command(CASET); //SET page address
+ Write_Data((x0)>>8); //SET start page address=0
+ Write_Data(x0);
+ Write_Data((x1)>>8); //SET end page address=XMAX
+ Write_Data(x1);
+ Write_Command(PASET); //SET column address
+ Write_Data((y0)>>8); //SET start column address=0
+ Write_Data(y0);
+ Write_Data((y1)>>8); //SET end column address=YMAX
+ Write_Data(y1);
+ Write_Command(RAMWR); //ready to now start writing the data
+ for (i = 0; i < ((((xmax - xmin + 1) * (ymax - ymin + 1)) / 2) + 1); i++) {
+ SendData(color);
+ }
+ } else {
+ LCDSetLine(x0, y0, x1, y0, color);
+ LCDSetLine(x0, y1, x1, y1, color);
+ LCDSetLine(x0, y0, x0, y1, color);
+ LCDSetLine(x1, y0, x1, y1, color);
+ }
+}
+
+/***************************************************************************/
+void LCDSetCircle(unsigned int x0, unsigned int y0, unsigned int radius, unsigned int color) {
+ int f = 1 - radius;
+ int ddF_x = 0;
+ int ddF_y = -2 * radius;
+ int x = 0;
+ int y = radius;
+ LCDSetPixel(x0, y0 + radius, color);
+ LCDSetPixel(x0, y0 - radius, color);
+ LCDSetPixel(x0 + radius, y0, color);
+ LCDSetPixel(x0 - radius, y0, color);
+ while (x < y) {
+ if (f >= 0) {
+ y--;
+ ddF_y += 2;
+ f += ddF_y;
+ }
+ x++;
+ ddF_x += 2;
+ f += ddF_x + 1;
+ LCDSetPixel(x0 + x, y0 + y, color);
+ LCDSetPixel(x0 - x, y0 + y, color);
+ LCDSetPixel(x0 + x, y0 - y, color);
+ LCDSetPixel(x0 - x, y0 - y, color);
+ LCDSetPixel(x0 + y, y0 + x, color);
+ LCDSetPixel(x0 - y, y0 + x, color);
+ LCDSetPixel(x0 + y, y0 - x, color);
+ LCDSetPixel(x0 - y, y0 - x, color);
+ }
+}
+/***************************************************************************/
+void LCDPutChar(char c, unsigned int x, unsigned int y, int size, unsigned int fColor, unsigned int bColor) {
+ extern const unsigned char FONT6x8[97][8];
+ extern const unsigned char FONT8x8[97][8];
+ extern const unsigned char FONT8x16[97][16];
+ int i,j;
+ unsigned int nCols;
+ unsigned int nRows;
+ unsigned int nBytes;
+ unsigned char PixelRow;
+ unsigned char Mask;
+ unsigned int Word0;
+ unsigned int Word1;
+ unsigned char *pFont;
+ unsigned char *pChar;
+ unsigned char *FontTable[] = {(unsigned char *)FONT6x8,
+ (unsigned char *)FONT8x8,
+ (unsigned char *)FONT8x16
+ };
+// get pointer to the beginning of the selected font table
+ pFont = (unsigned char *)FontTable[size];
+// get the nColumns, nRows and nBytes in the font table
+ nCols = *pFont;
+ nRows = *(pFont + 1);
+ nBytes = *(pFont + 2);
+// get pointer to the last byte of the desired character - i.e. last byte in the row
+ pChar = pFont + (nBytes * (c - 0x1F)) + nBytes - 1;
+// Row address set (command 0x2B) - x position on the LCD
+ Write_Command(PASET);
+ Write_Data(x);
+ Write_Data(x + nRows - 1);
+// Column address set (command 0x2A) - y position on the LCD
+ Write_Command(CASET);
+ Write_Data(y); Write_Data(y);
+ Write_Data(y + nCols - 1);
+// Write Memory - get ready to start writing the character
+ Write_Command(RAMWR);
+// loop on each row, working backwards from top to bottom
+ for (i = nRows - 1; i >= 0; i--) {
+// copy pixel row from font table and then decrement row
+ PixelRow = *pChar--;
+// loop on each pixel in the row (left to right)
+// Note: we do two pixels each loop
+ Mask = 0x80;
+ for (j = 0; j < nCols; j += 2) {
+// if pixel bit set, use foreground color; else use the background color
+// now get the pixel color for two successive pixels
+ if ((PixelRow & Mask) == 0)
+ Word0 = bColor;
+ else
+ Word0 = fColor;
+ Mask = Mask >> 1;
+ if ((PixelRow & Mask) == 0)
+ Word1 = bColor;
+ else
+ Word1 = fColor;
+ Mask = Mask >> 1;
+// use this information to output three data bytes
+ Write_Data((Word0 >> 4) & 0xFF);
+ Write_Data(((Word0 & 0xF) << 4) | ((Word1 >> 8) & 0xF));
+ Write_Data(Word1 & 0xFF);
+ }
+ }
+// terminate the Write Memory command
+ Write_Command(NOP);
+}
+// *************************************************************************************************
+
+
+
+
+int main(void) {
+
+ int h;
+ Serial pc(USBTX, USBRX);
+ wait_ms(10);
+ Init_SSD1963();
+
+
+ LCDSetXY(230,230);
+ QUADS();
+ clear_to_color();
+
+
+ LCDSetXY(340,200);
+ {
+ for (h=0;h<200;h++)
+ SendData(WHITE);
+ }
+
+ LCDSetXY(350,210);
+ {
+ for (h=0;h<200;h++)
+ SendData(DEEPINK);
+ }
+
+ LCDSetPixel(400,300,BLACK);//working
+ LCDSetPixel(405,305,DEEPINK);//working
+ LCDSetLine(0,300,250,10,DEEPINK);//working
+ LCDSetRect(100,100,250,250,1,DEEPINK);//working
+ LCDSetRect(200,200,350,350,0,BLACK);//working
+ LCDSetCircle(320,240,150,WHITE);//working
+ LCDSetCircle(320,240,155,WHITE);//working
+ LCDSetCircle(320,240,160,WHITE);//working
+ LCDPutChar('E',10,10,1, WHITE, BLACK);
+ //LCDPutStr("This guy is nuts", 115, 2, LARGE, BLACK, CYAN);
+ Write_Command(NOP);
+
+ while (1) {};
+}