Tim Dennis
Lib for the LCD display on mbed lab Board
Diff: C12832_lcd.h
- Revision:
- 0:4bbc531be6e2
- Child:
- 1:66dd8afbfd06
diff -r 000000000000 -r 4bbc531be6e2 C12832_lcd.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832_lcd.h Tue Oct 16 14:05:57 2012 +0000
@@ -0,0 +1,271 @@
+/* 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};
+
+class C12832_LCD : public GraphicsDisplay
+{
+public:
+ /** Create a C12832_LCD object connected to SPI1
+ *
+ */
+
+ C12832_LCD(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
+ *
+ */
+
+ void set_contrast(unsigned int o);
+
+/** 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);
+
+ int columns(void);
+
+ /** calculate the max number of columns
+ *
+ * @returns max column
+ * depends on actual font size
+ *
+ */
+ int rows(void);
+
+ /** put a char on the screen
+ *
+ * @param value char to print
+ * @returns printed char
+ *
+ */
+ 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
+ */
+ void locate(int x, int y);
+
+
+ /** 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);
+
+
+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];
+
+};
+
+
+
+
+#endif