LCD
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Diff: C12832_lcd.h
- Revision:
- 0:4bbc531be6e2
- Child:
- 1:66dd8afbfd06
--- /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