LCD
Fork of C12832 by
C12832_lcd.h
- Committer:
- chris
- Date:
- 2013-11-09
- Revision:
- 12:4affce236743
- Parent:
- 11:1d68011a277c
- Parent:
- 7:0f5a3b0f3cab
- Child:
- 13:8a9cad03124b
File content as of revision 12:4affce236743:
/* 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