Chris Styles
C12832 LCD with generic interface
Dependents: SongsAndLights I2CSong app-shield-all LCD_Games ... more
Fork of
C12832_lcd_fork
by 
Chris Styles
This is derived from the great work done Peter Dresche. I simply removed the MCU specific code, and added a pinmap at the top level, so that this component can we wired up any way.
Revision 15:67dfa5550b73, committed 2014-01-30
- Comitter:
- chris
- Date:
- Thu Jan 30 17:16:04 2014 +0000
- Parent:
- 14:b834d587bf45
- Child:
- 16:7de323fa46fe
- Commit message:
- think this is anothe fork
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832.cpp Thu Jan 30 17:16:04 2014 +0000
@@ -0,0 +1,589 @@
+/* mbed library for the mbed Lab Board 128*32 pixel LCD
+ * use C12832 controller
+ * Copyright (c) 2012 Peter Drescher - DC2PD
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * 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.
+ */
+
+// 13.10.12 initial design
+// 25.10.12 add autorefresh of screen
+// 25.10.12 add standart font
+// 20.12.12 add bitmap graphics
+
+// optional defines :
+// #define debug_lcd 1
+
+#include "C12832.h"
+#include "mbed.h"
+#include "stdio.h"
+#include "Small_7.h"
+
+#define BPP 1 // Bits per pixel
+
+
+C12832_LCD::C12832_LCD(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name)
+ : _spi(mosi,NC,sck),_reset(reset),_A0(a0),_CS(ncs),GraphicsDisplay(name)
+{
+ orientation = 1;
+ draw_mode = NORMAL;
+ char_x = 0;
+ lcd_reset();
+}
+
+
+int C12832_LCD::width()
+{
+ if (orientation == 0 || orientation == 2) return 32;
+ else return 128;
+}
+
+int C12832_LCD::height()
+{
+ if (orientation == 0 || orientation == 2) return 128;
+ else return 32;
+}
+
+
+/*void C12832_LCD::set_orientation(unsigned int o)
+{
+ orientation = o;
+ switch (o) {
+ case (0):
+ wr_cmd(0xA0);
+ wr_cmd(0xC0);
+ break;
+ case (1):
+ wr_cmd(0xA0);
+ wr_cmd(0xC8);
+ break;
+ case (2):
+ wr_cmd(0xA1);
+ wr_cmd(0xC8);
+ break;
+ case (3):
+ wr_cmd(0xA1);
+ wr_cmd(0xC0);
+ break;
+ }
+}
+
+*/
+
+void C12832_LCD::invert(unsigned int o)
+{
+ if(o == 0) wr_cmd(0xA6);
+ else wr_cmd(0xA7);
+}
+
+
+void C12832_LCD::set_contrast(unsigned int o)
+{
+ contrast = o;
+ wr_cmd(0x81); // set volume
+ wr_cmd(o & 0x3F);
+}
+
+unsigned int C12832_LCD::get_contrast(void)
+{
+ return(contrast);
+}
+
+
+// write command to lcd controller
+
+void C12832_LCD::wr_cmd(unsigned char cmd)
+{
+ _A0 = 0;
+ _CS = 0;
+ _spi.write(cmd);
+ _CS = 1;
+}
+
+// write data to lcd controller
+
+void C12832_LCD::wr_dat(unsigned char dat)
+{
+ _A0 = 1;
+ _CS = 0;
+ _spi.write(dat);
+ _CS = 1;
+}
+
+// reset and init the lcd controller
+
+void C12832_LCD::lcd_reset()
+{
+
+ _spi.format(8,3); // 8 bit spi mode 3
+ _spi.frequency(20000000); // 19,2 Mhz SPI clock
+ _A0 = 0;
+ _CS = 1;
+ _reset = 0; // display reset
+ wait_us(50);
+ _reset = 1; // end reset
+ wait_ms(5);
+
+ /* Start Initial Sequence ----------------------------------------------------*/
+
+ wr_cmd(0xAE); // display off
+ wr_cmd(0xA2); // bias voltage
+
+ wr_cmd(0xA0);
+ wr_cmd(0xC8); // colum normal
+
+ wr_cmd(0x22); // voltage resistor ratio
+ wr_cmd(0x2F); // power on
+ //wr_cmd(0xA4); // LCD display ram
+ wr_cmd(0x40); // start line = 0
+ wr_cmd(0xAF); // display ON
+
+ wr_cmd(0x81); // set contrast
+ wr_cmd(0x17); // set contrast
+
+ wr_cmd(0xA6); // display normal
+
+
+ // clear and update LCD
+ memset(buffer,0x00,512); // clear display buffer
+ copy_to_lcd();
+ auto_up = 1; // switch on auto update
+ // dont do this by default. Make the user call
+ //claim(stdout); // redirekt printf to lcd
+ locate(0,0);
+ set_font((unsigned char*)Small_7); // standart font
+}
+
+// set one pixel in buffer
+
+void C12832_LCD::pixel(int x, int y, int color)
+{
+ // first check parameter
+ if(x > 128 || y > 32 || x < 0 || y < 0) return;
+
+ if(draw_mode == NORMAL) {
+ if(color == 0)
+ buffer[x + ((y/8) * 128)] &= ~(1 << (y%8)); // erase pixel
+ else
+ buffer[x + ((y/8) * 128)] |= (1 << (y%8)); // set pixel
+ } else { // XOR mode
+ if(color == 1)
+ buffer[x + ((y/8) * 128)] ^= (1 << (y%8)); // xor pixel
+ }
+}
+
+// update lcd
+
+void C12832_LCD::copy_to_lcd(void)
+{
+
+ int i=0;
+
+ //page 0
+ wr_cmd(0x00); // set column low nibble 0
+ wr_cmd(0x10); // set column hi nibble 0
+ wr_cmd(0xB0); // set page address 0
+ _A0 = 1;
+ for(i=0; i<128; i++) {
+ wr_dat(buffer[i]);
+ }
+
+ // page 1
+ wr_cmd(0x00); // set column low nibble 0
+ wr_cmd(0x10); // set column hi nibble 0
+ wr_cmd(0xB1); // set page address 1
+ _A0 = 1;
+ for(i=128; i<256; i++) {
+ wr_dat(buffer[i]);
+ }
+
+ //page 2
+ wr_cmd(0x00); // set column low nibble 0
+ wr_cmd(0x10); // set column hi nibble 0
+ wr_cmd(0xB2); // set page address 2
+ _A0 = 1;
+ for(i=256; i<384; i++) {
+ wr_dat(buffer[i]);
+ }
+
+ //page 3
+ wr_cmd(0x00); // set column low nibble 0
+ wr_cmd(0x10); // set column hi nibble 0
+ wr_cmd(0xB3); // set page address 3
+ _A0 = 1;
+
+ _CS = 0;
+
+ for(i=384; i<512; i++) {
+ wr_dat(buffer[i]);
+ }
+
+}
+
+void C12832_LCD::cls(void)
+{
+ memset(buffer,0x00,512); // clear display buffer
+ copy_to_lcd();
+}
+
+
+void C12832_LCD::line(int x0, int y0, int x1, int y1, int color)
+{
+ int dx = 0, dy = 0;
+ int dx_sym = 0, dy_sym = 0;
+ int dx_x2 = 0, dy_x2 = 0;
+ int di = 0;
+
+ dx = x1-x0;
+ dy = y1-y0;
+
+ // if (dx == 0) { /* vertical line */
+ // if (y1 > y0) vline(x0,y0,y1,color);
+ // else vline(x0,y1,y0,color);
+ // return;
+ // }
+
+ if (dx > 0) {
+ dx_sym = 1;
+ } else {
+ dx_sym = -1;
+ }
+ // if (dy == 0) { /* horizontal line */
+ // if (x1 > x0) hline(x0,x1,y0,color);
+ // else hline(x1,x0,y0,color);
+ // return;
+ // }
+
+ if (dy > 0) {
+ dy_sym = 1;
+ } else {
+ dy_sym = -1;
+ }
+
+ dx = dx_sym*dx;
+ dy = dy_sym*dy;
+
+ dx_x2 = dx*2;
+ dy_x2 = dy*2;
+
+ if (dx >= dy) {
+ di = dy_x2 - dx;
+ while (x0 != x1) {
+
+ pixel(x0, y0, color);
+ x0 += dx_sym;
+ if (di<0) {
+ di += dy_x2;
+ } else {
+ di += dy_x2 - dx_x2;
+ y0 += dy_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ } else {
+ di = dx_x2 - dy;
+ while (y0 != y1) {
+ pixel(x0, y0, color);
+ y0 += dy_sym;
+ if (di < 0) {
+ di += dx_x2;
+ } else {
+ di += dx_x2 - dy_x2;
+ x0 += dx_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ }
+ if(auto_up) copy_to_lcd();
+}
+
+void C12832_LCD::rect(int x0, int y0, int x1, int y1, int color)
+{
+
+ if (x1 > x0) line(x0,y0,x1,y0,color);
+ else line(x1,y0,x0,y0,color);
+
+ if (y1 > y0) line(x0,y0,x0,y1,color);
+ else line(x0,y1,x0,y0,color);
+
+ if (x1 > x0) line(x0,y1,x1,y1,color);
+ else line(x1,y1,x0,y1,color);
+
+ if (y1 > y0) line(x1,y0,x1,y1,color);
+ else line(x1,y1,x1,y0,color);
+
+ if(auto_up) copy_to_lcd();
+}
+
+void C12832_LCD::fillrect(int x0, int y0, int x1, int y1, int color)
+{
+ int l,c,i;
+ if(x0 > x1) {
+ i = x0;
+ x0 = x1;
+ x1 = i;
+ }
+
+ if(y0 > y1) {
+ i = y0;
+ y0 = y1;
+ y1 = i;
+ }
+
+ for(l = x0; l<= x1; l ++) {
+ for(c = y0; c<= y1; c++) {
+ pixel(l,c,color);
+ }
+ }
+ if(auto_up) copy_to_lcd();
+}
+
+
+
+void C12832_LCD::circle(int x0, int y0, int r, int color)
+{
+
+ int draw_x0, draw_y0;
+ int draw_x1, draw_y1;
+ int draw_x2, draw_y2;
+ int draw_x3, draw_y3;
+ int draw_x4, draw_y4;
+ int draw_x5, draw_y5;
+ int draw_x6, draw_y6;
+ int draw_x7, draw_y7;
+ int xx, yy;
+ int di;
+ //WindowMax();
+ if (r == 0) { /* no radius */
+ return;
+ }
+
+ draw_x0 = draw_x1 = x0;
+ draw_y0 = draw_y1 = y0 + r;
+ if (draw_y0 < height()) {
+ pixel(draw_x0, draw_y0, color); /* 90 degree */
+ }
+
+ draw_x2 = draw_x3 = x0;
+ draw_y2 = draw_y3 = y0 - r;
+ if (draw_y2 >= 0) {
+ pixel(draw_x2, draw_y2, color); /* 270 degree */
+ }
+
+ draw_x4 = draw_x6 = x0 + r;
+ draw_y4 = draw_y6 = y0;
+ if (draw_x4 < width()) {
+ pixel(draw_x4, draw_y4, color); /* 0 degree */
+ }
+
+ draw_x5 = draw_x7 = x0 - r;
+ draw_y5 = draw_y7 = y0;
+ if (draw_x5>=0) {
+ pixel(draw_x5, draw_y5, color); /* 180 degree */
+ }
+
+ if (r == 1) {
+ return;
+ }
+
+ di = 3 - 2*r;
+ xx = 0;
+ yy = r;
+ while (xx < yy) {
+
+ if (di < 0) {
+ di += 4*xx + 6;
+ } else {
+ di += 4*(xx - yy) + 10;
+ yy--;
+ draw_y0--;
+ draw_y1--;
+ draw_y2++;
+ draw_y3++;
+ draw_x4--;
+ draw_x5++;
+ draw_x6--;
+ draw_x7++;
+ }
+ xx++;
+ draw_x0++;
+ draw_x1--;
+ draw_x2++;
+ draw_x3--;
+ draw_y4++;
+ draw_y5++;
+ draw_y6--;
+ draw_y7--;
+
+ if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
+ pixel(draw_x0, draw_y0, color);
+ }
+
+ if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
+ pixel(draw_x1, draw_y1, color);
+ }
+
+ if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
+ pixel(draw_x2, draw_y2, color);
+ }
+
+ if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
+ pixel(draw_x3, draw_y3, color);
+ }
+
+ if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
+ pixel(draw_x4, draw_y4, color);
+ }
+
+ if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
+ pixel(draw_x5, draw_y5, color);
+ }
+ if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
+ pixel(draw_x6, draw_y6, color);
+ }
+ if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
+ pixel(draw_x7, draw_y7, color);
+ }
+ }
+ if(auto_up) copy_to_lcd();
+}
+
+void C12832_LCD::fillcircle(int x, int y, int r, int color)
+{
+ int i,up;
+ up = auto_up;
+ auto_up = 0; // off
+ for (i = 0; i <= r; i++)
+ circle(x,y,i,color);
+ auto_up = up;
+ if(auto_up) copy_to_lcd();
+}
+
+void C12832_LCD::setmode(int mode)
+{
+ draw_mode = mode;
+}
+
+void C12832_LCD::locate(int x, int y)
+{
+ char_x = x;
+ char_y = y;
+}
+
+
+
+int C12832_LCD::columns()
+{
+ return width() / font[1];
+}
+
+
+
+int C12832_LCD::rows()
+{
+ return height() / font[2];
+}
+
+
+
+int C12832_LCD::_putc(int value)
+{
+ if (value == '\n') { // new line
+ char_x = 0;
+ char_y = char_y + font[2];
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ } else {
+ character(char_x, char_y, value);
+ if(auto_up) copy_to_lcd();
+ }
+ return value;
+}
+
+void C12832_LCD::character(int x, int y, int c)
+{
+ unsigned int hor,vert,offset,bpl,j,i,b;
+ unsigned char* zeichen;
+ unsigned char z,w;
+
+ if ((c < 31) || (c > 127)) return; // test char range
+
+ // read font parameter from start of array
+ offset = font[0]; // bytes / char
+ hor = font[1]; // get hor size of font
+ vert = font[2]; // get vert size of font
+ bpl = font[3]; // bytes per line
+
+ if (char_x + hor > width()) {
+ char_x = 0;
+ char_y = char_y + vert;
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ }
+
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ // construct the char into the buffer
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ pixel(x+i,y+j,0);
+ } else {
+ pixel(x+i,y+j,1);
+ }
+
+ }
+ }
+
+ char_x += w;
+}
+
+
+void C12832_LCD::set_font(unsigned char* f)
+{
+ font = f;
+}
+
+void C12832_LCD::set_auto_up(unsigned int up)
+{
+ if(up ) auto_up = 1;
+ else auto_up = 0;
+}
+
+unsigned int C12832_LCD::get_auto_up(void)
+{
+ return (auto_up);
+}
+
+void C12832_LCD::print_bm(Bitmap bm, int x, int y)
+{
+ int h,v,b;
+ char d;
+
+ for(v=0; v < bm.ySize; v++) { // lines
+ for(h=0; h < bm.xSize; h++) { // pixel
+ if(h + x > 127) break;
+ if(v + y > 31) break;
+ d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)];
+ b = 0x80 >> (h & 0x07);
+ if((d & b) == 0) {
+ pixel(x+h,y+v,0);
+ } else {
+ pixel(x+h,y+v,1);
+ }
+ }
+ }
+
+}
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832.h Thu Jan 30 17:16:04 2014 +0000
@@ -0,0 +1,313 @@
+/* mbed library for the mbed Lab Board 128*32 pixel LCD
+ * use C12832 controller
+ * Copyright (c) 2012 Peter Drescher - DC2PD
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * 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 C12832_H
+#define C12832_H
+
+#include "mbed.h"
+#include "GraphicsDisplay.h"
+
+
+/** optional Defines :
+ * #define debug_lcd 1 enable infos to PC_USB
+ */
+
+// some defines for the DMA use
+#define DMA_CHANNEL_ENABLE 1
+#define DMA_TRANSFER_TYPE_M2P (1UL << 11)
+#define DMA_CHANNEL_TCIE (1UL << 31)
+#define DMA_CHANNEL_SRC_INC (1UL << 26)
+#define DMA_MASK_IE (1UL << 14)
+#define DMA_MASK_ITC (1UL << 15)
+#define DMA_SSP1_TX (1UL << 2)
+#define DMA_SSP0_TX (0)
+#define DMA_DEST_SSP1_TX (2UL << 6)
+#define DMA_DEST_SSP0_TX (0UL << 6)
+
+/** Draw mode
+ * NORMAl
+ * XOR set pixel by xor the screen
+ */
+enum {NORMAL,XOR};
+
+/** Bitmap
+ */
+struct Bitmap{
+ int xSize;
+ int ySize;
+ int Byte_in_Line;
+ char* data;
+ };
+
+class C12832_LCD : public GraphicsDisplay
+{
+public:
+ /** Create a C12832_LCD object connected to SPI1
+ *
+ */
+
+ C12832_LCD(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name = "LCD");
+
+
+ /** Get the width of the screen in pixel
+ *
+ * @param
+ * @returns width of screen in pixel
+ *
+ */
+ virtual int width();
+
+ /** Get the height of the screen in pixel
+ *
+ * @returns height of screen in pixel
+ *
+ */
+ virtual int height();
+
+ /** Draw a pixel at x,y black or white
+ *
+ * @param x horizontal position
+ * @param y vertical position
+ * @param colour ,1 set pixel ,0 erase pixel
+ */
+ virtual void pixel(int x, int y,int colour);
+
+ /** draw a circle
+ *
+ * @param x0,y0 center
+ * @param r radius
+ * @param colour ,1 set pixel ,0 erase pixel
+ *
+ */
+ void circle(int x, int y, int r, int colour);
+
+ /** draw a filled circle
+ *
+ * @param x0,y0 center
+ * @param r radius
+ * @param color ,1 set pixel ,0 erase pixel
+ *
+ * use circle with different radius,
+ * can miss some pixel
+ */
+ void fillcircle(int x, int y, int r, int colour);
+
+ /** draw a 1 pixel line
+ *
+ * @param x0,y0 start point
+ * @param x1,y1 stop point
+ * @param color ,1 set pixel ,0 erase pixel
+ *
+ */
+ void line(int x0, int y0, int x1, int y1, int colour);
+
+ /** draw a rect
+ *
+ * @param x0,y0 top left corner
+ * @param x1,y1 down right corner
+ * @param color 1 set pixel ,0 erase pixel
+ * *
+ */
+ void rect(int x0, int y0, int x1, int y1, int colour);
+
+ /** draw a filled rect
+ *
+ * @param x0,y0 top left corner
+ * @param x1,y1 down right corner
+ * @param color 1 set pixel ,0 erase pixel
+ *
+ */
+ void fillrect(int x0, int y0, int x1, int y1, int colour);
+
+ /** copy display buffer to lcd
+ *
+ */
+
+ void copy_to_lcd(void);
+
+ /** set the orienation of the screen
+ *
+ */
+
+ //void set_orientation(unsigned int o);
+
+ /** set the contrast of the screen
+ *
+ * @param o contrast 0-63
+ */
+
+ void set_contrast(unsigned int o);
+
+ /** read the contrast level
+ *
+ */
+ unsigned int get_contrast(void);
+
+
+
+ /** invert the screen
+ *
+ * @param o = 0 normal, 1 invert
+ */
+ void invert(unsigned int o);
+
+ /** clear the screen
+ *
+ */
+ virtual void cls(void);
+
+ /** set the drawing mode
+ *
+ * @param mode NORMAl or XOR
+ */
+
+ void setmode(int mode);
+
+ virtual int columns(void);
+
+ /** calculate the max number of columns
+ *
+ * @returns max column
+ * depends on actual font size
+ *
+ */
+ virtual int rows(void);
+
+ /** put a char on the screen
+ *
+ * @param value char to print
+ * @returns printed char
+ *
+ */
+ virtual int _putc(int value);
+
+ /** draw a character on given position out of the active font to the LCD
+ *
+ * @param x x-position of char (top left)
+ * @param y y-position
+ * @param c char to print
+ *
+ */
+ virtual void character(int x, int y, int c);
+
+ /** setup cursor position
+ *
+ * @param x x-position (top left)
+ * @param y y-position
+ */
+ virtual void locate(int x, int y);
+
+ /** setup auto update of screen
+ *
+ * @param up 1 = on , 0 = off
+ * if switched off the program has to call copy_to_lcd()
+ * to update screen from framebuffer
+ */
+ void set_auto_up(unsigned int up);
+
+ /** get status of the auto update function
+ *
+ * @returns if auto update is on
+ */
+ unsigned int get_auto_up(void);
+
+ /** Vars */
+ SPI _spi;
+ DigitalOut _reset;
+ DigitalOut _A0;
+ DigitalOut _CS;
+ unsigned char* font;
+ unsigned int draw_mode;
+
+
+ /** select the font to use
+ *
+ * @param f pointer to font array
+ *
+ * font array can created with GLCD Font Creator from http://www.mikroe.com
+ * you have to add 4 parameter at the beginning of the font array to use:
+ * - the number of byte / char
+ * - the vertial size in pixel
+ * - the horizontal size in pixel
+ * - the number of byte per vertical line
+ * you also have to change the array to char[]
+ *
+ */
+ void set_font(unsigned char* f);
+
+ /** print bitmap to buffer
+ *
+ * @param bm Bitmap in flash
+ * @param x x start
+ * @param y y start
+ *
+ */
+
+ void print_bm(Bitmap bm, int x, int y);
+
+protected:
+
+ /** draw a horizontal line
+ *
+ * @param x0 horizontal start
+ * @param x1 horizontal stop
+ * @param y vertical position
+ * @param ,1 set pixel ,0 erase pixel
+ *
+ */
+ void hline(int x0, int x1, int y, int colour);
+
+ /** draw a vertical line
+ *
+ * @param x horizontal position
+ * @param y0 vertical start
+ * @param y1 vertical stop
+ * @param ,1 set pixel ,0 erase pixel
+ */
+ void vline(int y0, int y1, int x, int colour);
+
+ /** Init the C12832 LCD controller
+ *
+ */
+ void lcd_reset();
+
+ /** Write data to the LCD controller
+ *
+ * @param dat data written to LCD controller
+ *
+ */
+ void wr_dat(unsigned char value);
+
+ /** Write a command the LCD controller
+ *
+ * @param cmd: command to be written
+ *
+ */
+ void wr_cmd(unsigned char value);
+
+ void wr_cnt(unsigned char cmd);
+
+ unsigned int orientation;
+ unsigned int char_x;
+ unsigned int char_y;
+ unsigned char buffer[512];
+ unsigned int contrast;
+ unsigned int auto_up;
+
+};
+
+
+
+
+#endif
--- a/C12832_lcd.cpp Wed Jan 08 16:56:49 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,672 +0,0 @@
-/* mbed library for the mbed Lab Board 128*32 pixel LCD
- * use C12832 controller
- * Copyright (c) 2012 Peter Drescher - DC2PD
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * 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.
- */
-
-// 13.10.12 initial design
-// 25.10.12 add autorefresh of screen
-// 25.10.12 add standart font
-// 20.12.12 add bitmap graphics
-
-// optional defines :
-// #define debug_lcd 1
-
-#include "C12832_lcd.h"
-#include "mbed.h"
-#include "stdio.h"
-#include "Small_7.h"
-
-#define BPP 1 // Bits per pixel
-
-
-C12832_LCD::C12832_LCD(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name)
- : _spi(mosi,NC,sck),_reset(reset),_A0(a0),_CS(ncs),GraphicsDisplay(name)
-{
- orientation = 1;
- draw_mode = NORMAL;
- char_x = 0;
- lcd_reset();
-}
-
-
-int C12832_LCD::width()
-{
- if (orientation == 0 || orientation == 2) return 32;
- else return 128;
-}
-
-int C12832_LCD::height()
-{
- if (orientation == 0 || orientation == 2) return 128;
- else return 32;
-}
-
-
-/*void C12832_LCD::set_orientation(unsigned int o)
-{
- orientation = o;
- switch (o) {
- case (0):
- wr_cmd(0xA0);
- wr_cmd(0xC0);
- break;
- case (1):
- wr_cmd(0xA0);
- wr_cmd(0xC8);
- break;
- case (2):
- wr_cmd(0xA1);
- wr_cmd(0xC8);
- break;
- case (3):
- wr_cmd(0xA1);
- wr_cmd(0xC0);
- break;
- }
-}
-
-*/
-
-void C12832_LCD::invert(unsigned int o)
-{
- if(o == 0) wr_cmd(0xA6);
- else wr_cmd(0xA7);
-}
-
-
-void C12832_LCD::set_contrast(unsigned int o)
-{
- contrast = o;
- wr_cmd(0x81); // set volume
- wr_cmd(o & 0x3F);
-}
-
-unsigned int C12832_LCD::get_contrast(void)
-{
- return(contrast);
-}
-
-
-// write command to lcd controller
-
-void C12832_LCD::wr_cmd(unsigned char cmd)
-{
- _A0 = 0;
- _CS = 0;
-#if defined TARGET_LPC17699 // fast without mbed lib
- LPC_SSP1->DR = cmd;
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle
-#else
- _spi.write(cmd);
-#endif
- _CS = 1;
-}
-
-// write data to lcd controller
-
-void C12832_LCD::wr_dat(unsigned char dat)
-{
- _A0 = 1;
- _CS = 0;
-#if defined TARGET_LPC17699 // fast without mbed lib
- LPC_SSP1->DR = dat;
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle
-#else
- _spi.write(dat);
-#endif
- _CS = 1;
-}
-
-// reset and init the lcd controller
-
-void C12832_LCD::lcd_reset()
-{
-
- _spi.format(8,3); // 8 bit spi mode 3
- _spi.frequency(20000000); // 19,2 Mhz SPI clock
-// DigitalOut _reset(p6);
- _A0 = 0;
- _CS = 1;
- _reset = 0; // display reset
- wait_us(50);
- _reset = 1; // end reset
- wait_ms(5);
-
- /* Start Initial Sequence ----------------------------------------------------*/
-
- wr_cmd(0xAE); // display off
- wr_cmd(0xA2); // bias voltage
-
- wr_cmd(0xA0);
- wr_cmd(0xC8); // colum normal
-
- wr_cmd(0x22); // voltage resistor ratio
- wr_cmd(0x2F); // power on
- //wr_cmd(0xA4); // LCD display ram
- wr_cmd(0x40); // start line = 0
- wr_cmd(0xAF); // display ON
-
- wr_cmd(0x81); // set contrast
- wr_cmd(0x17); // set contrast
-
- wr_cmd(0xA6); // display normal
-
-
-#if defined TARGET_LPC17699 //setup DMA channel 0
- LPC_SC->PCONP |= (1UL << 29); // Power up the GPDMA
- LPC_GPDMA->DMACConfig = 1; // enable DMA controller
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCLLI = 0;
-#endif
- // clear and update LCD
- memset(buffer,0x00,512); // clear display buffer
- copy_to_lcd();
- auto_up = 1; // switch on auto update
- // dont do this by default. Make the user call
- //claim(stdout); // redirekt printf to lcd
- locate(0,0);
- set_font((unsigned char*)Small_7); // standart font
-}
-
-// set one pixel in buffer
-
-void C12832_LCD::pixel(int x, int y, int color)
-{
- // first check parameter
- if(x > 128 || y > 32 || x < 0 || y < 0) return;
-
- if(draw_mode == NORMAL) {
- if(color == 0)
- buffer[x + ((y/8) * 128)] &= ~(1 << (y%8)); // erase pixel
- else
- buffer[x + ((y/8) * 128)] |= (1 << (y%8)); // set pixel
- } else { // XOR mode
- if(color == 1)
- buffer[x + ((y/8) * 128)] ^= (1 << (y%8)); // xor pixel
- }
-}
-
-// update lcd
-
-void C12832_LCD::copy_to_lcd(void)
-{
-#ifndef TARGET_LPC17699
- int i;
-#endif
- //page 0
- wr_cmd(0x00); // set column low nibble 0
- wr_cmd(0x10); // set column hi nibble 0
- wr_cmd(0xB0); // set page address 0
- _A0 = 1;
-#if defined TARGET_LPC17699
- _CS = 0;
- // start 128 byte DMA transfer to SPI1
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- LPC_SSP1->DMACR = 0x2; // Enable SSP1 for DMA.
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer);
- LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX;
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- _CS = 1;
-#else // no DMA
- for(i=0; i<128; i++) {
- wr_dat(buffer[i]);
- }
-#endif
-
- // page 1
- wr_cmd(0x00); // set column low nibble 0
- wr_cmd(0x10); // set column hi nibble 0
- wr_cmd(0xB1); // set page address 1
- _A0 = 1;
-#if defined TARGET_LPC17699
- _CS = 0;
- // start 128 byte DMA transfer to SPI1
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 128);
- LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX;
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- _CS = 1;
-#else // no DMA
- for(i=128; i<256; i++) {
- wr_dat(buffer[i]);
- }
-#endif
-
- //page 2
- wr_cmd(0x00); // set column low nibble 0
- wr_cmd(0x10); // set column hi nibble 0
- wr_cmd(0xB2); // set page address 2
- _A0 = 1;
-#if defined TARGET_LPC17699
- _CS = 0;
- // start 128 byte DMA transfer to SPI1
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 256);
- LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX ;
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- _CS = 1;
-#else // no DMA
- for(i=256; i<384; i++) {
- wr_dat(buffer[i]);
- }
-#endif
-
- //page 3
- wr_cmd(0x00); // set column low nibble 0
- wr_cmd(0x10); // set column hi nibble 0
- wr_cmd(0xB3); // set page address 3
- _A0 = 1;
-
- _CS = 0;
-#if defined TARGET_LPC17699
- // start 128 byte DMA transfer to SPI1
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 384);
- LPC_GPDMACH0->DMACCControl = 128 | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX;
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- _CS = 1;
-#else // no DMA
- for(i=384; i<512; i++) {
- wr_dat(buffer[i]);
- }
-#endif
-}
-
-void C12832_LCD::cls(void)
-{
- memset(buffer,0x00,512); // clear display buffer
- copy_to_lcd();
-}
-
-
-void C12832_LCD::line(int x0, int y0, int x1, int y1, int color)
-{
- int dx = 0, dy = 0;
- int dx_sym = 0, dy_sym = 0;
- int dx_x2 = 0, dy_x2 = 0;
- int di = 0;
-
- dx = x1-x0;
- dy = y1-y0;
-
- // if (dx == 0) { /* vertical line */
- // if (y1 > y0) vline(x0,y0,y1,color);
- // else vline(x0,y1,y0,color);
- // return;
- // }
-
- if (dx > 0) {
- dx_sym = 1;
- } else {
- dx_sym = -1;
- }
- // if (dy == 0) { /* horizontal line */
- // if (x1 > x0) hline(x0,x1,y0,color);
- // else hline(x1,x0,y0,color);
- // return;
- // }
-
- if (dy > 0) {
- dy_sym = 1;
- } else {
- dy_sym = -1;
- }
-
- dx = dx_sym*dx;
- dy = dy_sym*dy;
-
- dx_x2 = dx*2;
- dy_x2 = dy*2;
-
- if (dx >= dy) {
- di = dy_x2 - dx;
- while (x0 != x1) {
-
- pixel(x0, y0, color);
- x0 += dx_sym;
- if (di<0) {
- di += dy_x2;
- } else {
- di += dy_x2 - dx_x2;
- y0 += dy_sym;
- }
- }
- pixel(x0, y0, color);
- } else {
- di = dx_x2 - dy;
- while (y0 != y1) {
- pixel(x0, y0, color);
- y0 += dy_sym;
- if (di < 0) {
- di += dx_x2;
- } else {
- di += dx_x2 - dy_x2;
- x0 += dx_sym;
- }
- }
- pixel(x0, y0, color);
- }
- if(auto_up) copy_to_lcd();
-}
-
-void C12832_LCD::rect(int x0, int y0, int x1, int y1, int color)
-{
-
- if (x1 > x0) line(x0,y0,x1,y0,color);
- else line(x1,y0,x0,y0,color);
-
- if (y1 > y0) line(x0,y0,x0,y1,color);
- else line(x0,y1,x0,y0,color);
-
- if (x1 > x0) line(x0,y1,x1,y1,color);
- else line(x1,y1,x0,y1,color);
-
- if (y1 > y0) line(x1,y0,x1,y1,color);
- else line(x1,y1,x1,y0,color);
-
- if(auto_up) copy_to_lcd();
-}
-
-void C12832_LCD::fillrect(int x0, int y0, int x1, int y1, int color)
-{
- int l,c,i;
- if(x0 > x1) {
- i = x0;
- x0 = x1;
- x1 = i;
- }
-
- if(y0 > y1) {
- i = y0;
- y0 = y1;
- y1 = i;
- }
-
- for(l = x0; l<= x1; l ++) {
- for(c = y0; c<= y1; c++) {
- pixel(l,c,color);
- }
- }
- if(auto_up) copy_to_lcd();
-}
-
-
-
-void C12832_LCD::circle(int x0, int y0, int r, int color)
-{
-
- int draw_x0, draw_y0;
- int draw_x1, draw_y1;
- int draw_x2, draw_y2;
- int draw_x3, draw_y3;
- int draw_x4, draw_y4;
- int draw_x5, draw_y5;
- int draw_x6, draw_y6;
- int draw_x7, draw_y7;
- int xx, yy;
- int di;
- //WindowMax();
- if (r == 0) { /* no radius */
- return;
- }
-
- draw_x0 = draw_x1 = x0;
- draw_y0 = draw_y1 = y0 + r;
- if (draw_y0 < height()) {
- pixel(draw_x0, draw_y0, color); /* 90 degree */
- }
-
- draw_x2 = draw_x3 = x0;
- draw_y2 = draw_y3 = y0 - r;
- if (draw_y2 >= 0) {
- pixel(draw_x2, draw_y2, color); /* 270 degree */
- }
-
- draw_x4 = draw_x6 = x0 + r;
- draw_y4 = draw_y6 = y0;
- if (draw_x4 < width()) {
- pixel(draw_x4, draw_y4, color); /* 0 degree */
- }
-
- draw_x5 = draw_x7 = x0 - r;
- draw_y5 = draw_y7 = y0;
- if (draw_x5>=0) {
- pixel(draw_x5, draw_y5, color); /* 180 degree */
- }
-
- if (r == 1) {
- return;
- }
-
- di = 3 - 2*r;
- xx = 0;
- yy = r;
- while (xx < yy) {
-
- if (di < 0) {
- di += 4*xx + 6;
- } else {
- di += 4*(xx - yy) + 10;
- yy--;
- draw_y0--;
- draw_y1--;
- draw_y2++;
- draw_y3++;
- draw_x4--;
- draw_x5++;
- draw_x6--;
- draw_x7++;
- }
- xx++;
- draw_x0++;
- draw_x1--;
- draw_x2++;
- draw_x3--;
- draw_y4++;
- draw_y5++;
- draw_y6--;
- draw_y7--;
-
- if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
- pixel(draw_x0, draw_y0, color);
- }
-
- if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
- pixel(draw_x1, draw_y1, color);
- }
-
- if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
- pixel(draw_x2, draw_y2, color);
- }
-
- if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
- pixel(draw_x3, draw_y3, color);
- }
-
- if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
- pixel(draw_x4, draw_y4, color);
- }
-
- if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
- pixel(draw_x5, draw_y5, color);
- }
- if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
- pixel(draw_x6, draw_y6, color);
- }
- if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
- pixel(draw_x7, draw_y7, color);
- }
- }
- if(auto_up) copy_to_lcd();
-}
-
-void C12832_LCD::fillcircle(int x, int y, int r, int color)
-{
- int i,up;
- up = auto_up;
- auto_up = 0; // off
- for (i = 0; i <= r; i++)
- circle(x,y,i,color);
- auto_up = up;
- if(auto_up) copy_to_lcd();
-}
-
-void C12832_LCD::setmode(int mode)
-{
- draw_mode = mode;
-}
-
-void C12832_LCD::locate(int x, int y)
-{
- char_x = x;
- char_y = y;
-}
-
-
-
-int C12832_LCD::columns()
-{
- return width() / font[1];
-}
-
-
-
-int C12832_LCD::rows()
-{
- return height() / font[2];
-}
-
-
-
-int C12832_LCD::_putc(int value)
-{
- if (value == '\n') { // new line
- char_x = 0;
- char_y = char_y + font[2];
- if (char_y >= height() - font[2]) {
- char_y = 0;
- }
- } else {
- character(char_x, char_y, value);
- if(auto_up) copy_to_lcd();
- }
- return value;
-}
-
-void C12832_LCD::character(int x, int y, int c)
-{
- unsigned int hor,vert,offset,bpl,j,i,b;
- unsigned char* zeichen;
- unsigned char z,w;
-
- if ((c < 31) || (c > 127)) return; // test char range
-
- // read font parameter from start of array
- offset = font[0]; // bytes / char
- hor = font[1]; // get hor size of font
- vert = font[2]; // get vert size of font
- bpl = font[3]; // bytes per line
-
- if (char_x + hor > width()) {
- char_x = 0;
- char_y = char_y + vert;
- if (char_y >= height() - font[2]) {
- char_y = 0;
- }
- }
-
- zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
- w = zeichen[0]; // width of actual char
- // construct the char into the buffer
- for (j=0; j<vert; j++) { // vert line
- for (i=0; i<hor; i++) { // horz line
- z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
- b = 1 << (j & 0x07);
- if (( z & b ) == 0x00) {
- pixel(x+i,y+j,0);
- } else {
- pixel(x+i,y+j,1);
- }
-
- }
- }
-
- char_x += w;
-}
-
-
-void C12832_LCD::set_font(unsigned char* f)
-{
- font = f;
-}
-
-void C12832_LCD::set_auto_up(unsigned int up)
-{
- if(up ) auto_up = 1;
- else auto_up = 0;
-}
-
-unsigned int C12832_LCD::get_auto_up(void)
-{
- return (auto_up);
-}
-
-void C12832_LCD::print_bm(Bitmap bm, int x, int y)
-{
- int h,v,b;
- char d;
-
- for(v=0; v < bm.ySize; v++) { // lines
- for(h=0; h < bm.xSize; h++) { // pixel
- if(h + x > 127) break;
- if(v + y > 31) break;
- d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)];
- b = 0x80 >> (h & 0x07);
- if((d & b) == 0) {
- pixel(x+h,y+v,0);
- } else {
- pixel(x+h,y+v,1);
- }
- }
- }
-
-}
-
-
--- a/C12832_lcd.h Wed Jan 08 16:56:49 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,313 +0,0 @@
-/* mbed library for the mbed Lab Board 128*32 pixel LCD
- * use C12832 controller
- * Copyright (c) 2012 Peter Drescher - DC2PD
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * 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 C12832_H
-#define C12832_H
-
-#include "mbed.h"
-#include "GraphicsDisplay.h"
-
-
-/** optional Defines :
- * #define debug_lcd 1 enable infos to PC_USB
- */
-
-// some defines for the DMA use
-#define DMA_CHANNEL_ENABLE 1
-#define DMA_TRANSFER_TYPE_M2P (1UL << 11)
-#define DMA_CHANNEL_TCIE (1UL << 31)
-#define DMA_CHANNEL_SRC_INC (1UL << 26)
-#define DMA_MASK_IE (1UL << 14)
-#define DMA_MASK_ITC (1UL << 15)
-#define DMA_SSP1_TX (1UL << 2)
-#define DMA_SSP0_TX (0)
-#define DMA_DEST_SSP1_TX (2UL << 6)
-#define DMA_DEST_SSP0_TX (0UL << 6)
-
-/** Draw mode
- * NORMAl
- * XOR set pixel by xor the screen
- */
-enum {NORMAL,XOR};
-
-/** Bitmap
- */
-struct Bitmap{
- int xSize;
- int ySize;
- int Byte_in_Line;
- char* data;
- };
-
-class C12832_LCD : public GraphicsDisplay
-{
-public:
- /** Create a C12832_LCD object connected to SPI1
- *
- */
-
- C12832_LCD(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name = "LCD");
-
-
- /** Get the width of the screen in pixel
- *
- * @param
- * @returns width of screen in pixel
- *
- */
- virtual int width();
-
- /** Get the height of the screen in pixel
- *
- * @returns height of screen in pixel
- *
- */
- virtual int height();
-
- /** Draw a pixel at x,y black or white
- *
- * @param x horizontal position
- * @param y vertical position
- * @param colour ,1 set pixel ,0 erase pixel
- */
- virtual void pixel(int x, int y,int colour);
-
- /** draw a circle
- *
- * @param x0,y0 center
- * @param r radius
- * @param colour ,1 set pixel ,0 erase pixel
- *
- */
- void circle(int x, int y, int r, int colour);
-
- /** draw a filled circle
- *
- * @param x0,y0 center
- * @param r radius
- * @param color ,1 set pixel ,0 erase pixel
- *
- * use circle with different radius,
- * can miss some pixel
- */
- void fillcircle(int x, int y, int r, int colour);
-
- /** draw a 1 pixel line
- *
- * @param x0,y0 start point
- * @param x1,y1 stop point
- * @param color ,1 set pixel ,0 erase pixel
- *
- */
- void line(int x0, int y0, int x1, int y1, int colour);
-
- /** draw a rect
- *
- * @param x0,y0 top left corner
- * @param x1,y1 down right corner
- * @param color 1 set pixel ,0 erase pixel
- * *
- */
- void rect(int x0, int y0, int x1, int y1, int colour);
-
- /** draw a filled rect
- *
- * @param x0,y0 top left corner
- * @param x1,y1 down right corner
- * @param color 1 set pixel ,0 erase pixel
- *
- */
- void fillrect(int x0, int y0, int x1, int y1, int colour);
-
- /** copy display buffer to lcd
- *
- */
-
- void copy_to_lcd(void);
-
- /** set the orienation of the screen
- *
- */
-
- //void set_orientation(unsigned int o);
-
- /** set the contrast of the screen
- *
- * @param o contrast 0-63
- */
-
- void set_contrast(unsigned int o);
-
- /** read the contrast level
- *
- */
- unsigned int get_contrast(void);
-
-
-
- /** invert the screen
- *
- * @param o = 0 normal, 1 invert
- */
- void invert(unsigned int o);
-
- /** clear the screen
- *
- */
- virtual void cls(void);
-
- /** set the drawing mode
- *
- * @param mode NORMAl or XOR
- */
-
- void setmode(int mode);
-
- virtual int columns(void);
-
- /** calculate the max number of columns
- *
- * @returns max column
- * depends on actual font size
- *
- */
- virtual int rows(void);
-
- /** put a char on the screen
- *
- * @param value char to print
- * @returns printed char
- *
- */
- virtual int _putc(int value);
-
- /** draw a character on given position out of the active font to the LCD
- *
- * @param x x-position of char (top left)
- * @param y y-position
- * @param c char to print
- *
- */
- virtual void character(int x, int y, int c);
-
- /** setup cursor position
- *
- * @param x x-position (top left)
- * @param y y-position
- */
- virtual void locate(int x, int y);
-
- /** setup auto update of screen
- *
- * @param up 1 = on , 0 = off
- * if switched off the program has to call copy_to_lcd()
- * to update screen from framebuffer
- */
- void set_auto_up(unsigned int up);
-
- /** get status of the auto update function
- *
- * @returns if auto update is on
- */
- unsigned int get_auto_up(void);
-
- /** Vars */
- SPI _spi;
- DigitalOut _reset;
- DigitalOut _A0;
- DigitalOut _CS;
- unsigned char* font;
- unsigned int draw_mode;
-
-
- /** select the font to use
- *
- * @param f pointer to font array
- *
- * font array can created with GLCD Font Creator from http://www.mikroe.com
- * you have to add 4 parameter at the beginning of the font array to use:
- * - the number of byte / char
- * - the vertial size in pixel
- * - the horizontal size in pixel
- * - the number of byte per vertical line
- * you also have to change the array to char[]
- *
- */
- void set_font(unsigned char* f);
-
- /** print bitmap to buffer
- *
- * @param bm Bitmap in flash
- * @param x x start
- * @param y y start
- *
- */
-
- void print_bm(Bitmap bm, int x, int y);
-
-protected:
-
- /** draw a horizontal line
- *
- * @param x0 horizontal start
- * @param x1 horizontal stop
- * @param y vertical position
- * @param ,1 set pixel ,0 erase pixel
- *
- */
- void hline(int x0, int x1, int y, int colour);
-
- /** draw a vertical line
- *
- * @param x horizontal position
- * @param y0 vertical start
- * @param y1 vertical stop
- * @param ,1 set pixel ,0 erase pixel
- */
- void vline(int y0, int y1, int x, int colour);
-
- /** Init the C12832 LCD controller
- *
- */
- void lcd_reset();
-
- /** Write data to the LCD controller
- *
- * @param dat data written to LCD controller
- *
- */
- void wr_dat(unsigned char value);
-
- /** Write a command the LCD controller
- *
- * @param cmd: command to be written
- *
- */
- void wr_cmd(unsigned char value);
-
- void wr_cnt(unsigned char cmd);
-
- unsigned int orientation;
- unsigned int char_x;
- unsigned int char_y;
- unsigned char buffer[512];
- unsigned int contrast;
- unsigned int auto_up;
-
-};
-
-
-
-
-#endif
128x32 LCD
mbed Application Board
mbed Application Shield