Lib for the new LCD Display with ILI9341 controller Modified for huge fonts (>255 bytes/char). Needs modified font.h files with 2-byte size parameter. Window size is set on a per-character basis to minimise the number of pixels written (speed-up, plus better detection of whether one last character will fit on the current line). NUCLEO & NXP DMA-enabled versions are modified but untested.
Fork of SPI_TFT_ILI9341 by
SPI_TFT_ILI9341.h
- Committer:
- dreschpe
- Date:
- 2013-06-12
- Revision:
- 0:da1bf437cbc1
- Child:
- 1:6d6125e88de7
File content as of revision 0:da1bf437cbc1:
/* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller * Copyright (c) 2011 Peter Drescher - DC2PD * * 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. */ /* change the char position handling * use pixel (x,y) instadt of colum row */ #ifndef MBED_SPI_TFT_ILI9341_H #define MBED_SPI_TFT_ILI9341_H #include "mbed.h" #include "GraphicsDisplay.h" #define RGB(r,g,b) (((r&0xF8)<<8)|((g&0xFC)<<3)|((b&0xF8)>>3)) //5 red | 6 green | 5 blue /* some RGB color definitions */ #define Black 0x0000 /* 0, 0, 0 */ #define Navy 0x000F /* 0, 0, 128 */ #define DarkGreen 0x03E0 /* 0, 128, 0 */ #define DarkCyan 0x03EF /* 0, 128, 128 */ #define Maroon 0x7800 /* 128, 0, 0 */ #define Purple 0x780F /* 128, 0, 128 */ #define Olive 0x7BE0 /* 128, 128, 0 */ #define LightGrey 0xC618 /* 192, 192, 192 */ #define DarkGrey 0x7BEF /* 128, 128, 128 */ #define Blue 0x001F /* 0, 0, 255 */ #define Green 0x07E0 /* 0, 255, 0 */ #define Cyan 0x07FF /* 0, 255, 255 */ #define Red 0xF800 /* 255, 0, 0 */ #define Magenta 0xF81F /* 255, 0, 255 */ #define Yellow 0xFFE0 /* 255, 255, 0 */ #define White 0xFFFF /* 255, 255, 255 */ #define Orange 0xFD20 /* 255, 165, 0 */ #define GreenYellow 0xAFE5 /* 173, 255, 47 */ /** Display control class, based on GraphicsDisplay and TextDisplay * * Example: * @code * #include "stdio.h" * #include "mbed.h" * #include "SPI_TFT_ILI9341.h" * #include "string" * #include "Arial12x12.h" * #include "Arial24x23.h" * * * * // the TFT is connected to SPI pin 5-7 * SPI_TFT_ILI9341 TFT(p5, p6, p7, p8, p15,"TFT"); // mosi, miso, sclk, cs, reset * * int main() { * TFT.claim(stdout); // send stdout to the TFT display * //TFT.claim(stderr); // send stderr to the TFT display * * TFT.background(Black); // set background to black * TFT.foreground(White); // set chars to white * TFT.cls(); // clear the screen * TFT.set_font((unsigned char*) Arial12x12); // select the font * * TFT.set_orientation(0); * TFT.locate(0,0); * printf(" Hello Mbed 0"); * TFT.set_font((unsigned char*) Arial24x23); // select font 2 * TFT.locate(48,115); * TFT.printf("Bigger Font"); * } * @endcode */ class SPI_TFT_ILI9341 : public GraphicsDisplay { public: /** Create a SPI_TFT object connected to SPI and two pins * * @param mosi,miso,sclk SPI * @param cs pin connected to CS of display * @param reset pin connected to RESET of display * */ SPI_TFT_ILI9341(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName dc, const char* name ="TFT"); /** 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 with color * * @param x horizontal position * @param y vertical position * @param color 16 bit pixel color */ virtual void pixel(int x, int y,int colour); /** draw a circle * * @param x0,y0 center * @param r radius * @param color 16 bit color * * */ void circle(int x, int y, int r, int colour); /** draw a filled circle * * @param x0,y0 center * @param r radius * @param color 16 bit color * * * 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 16 bit color * */ 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 16 bit color * * */ 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 16 bit color * */ void fillrect(int x0, int y0, int x1, int y1, int colour); /** setup cursor position * * @param x x-position (top left) * @param y y-position */ virtual void locate(int x, int y); /** Fill the screen with _backgroun color * */ virtual void cls (void); /** calculate the max number of char in a line * * @returns max columns * depends on actual font size * */ 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 TFT * * @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); /** paint a bitmap on the TFT * * @param x,y : upper left corner * @param w width of bitmap * @param h high of bitmap * @param *bitmap pointer to the bitmap data * * bitmap format: 16 bit R5 G6 B5 * * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5 * use winhex to load this file and mark data stating at offset 0x46 to end * use edit -> copy block -> C Source to export C array * paste this array into your program * * define the array as static const unsigned char to put it into flash memory * cast the pointer to (unsigned char *) : * tft.Bitmap(10,40,309,50,(unsigned char *)scala); */ void Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap); /** paint a 16 bit BMP from local filesytem on the TFT (slow) * * @param x,y : upper left corner * @param *Name_BMP name of the BMP file * @returns 1 if bmp file was found and painted * @returns -1 if bmp file was found not found * @returns -2 if bmp file is not 16bit * @returns -3 if bmp file is to big for screen * @returns -4 if buffer malloc go wrong * * bitmap format: 16 bit R5 G6 B5 * * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5 * copy to internal file system * */ int BMP_16(unsigned int x, unsigned int y, const char *Name_BMP); /** 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); /** Set the orientation of the screen * x,y: 0,0 is always top left * * @param o direction to use the screen (0-3) 90� Steps * */ //void set_orientation(unsigned int o); SPI _spi; DigitalOut _cs; DigitalOut _reset; DigitalOut _dc; unsigned char* font; protected: /** Set draw window region to whole screen * */ void WindowMax (void); /** draw a horizontal line * * @param x0 horizontal start * @param x1 horizontal stop * @param y vertical position * @param color 16 bit color * */ 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 color 16 bit color */ void vline(int y0, int y1, int x, int colour); /** Set draw window region * * @param x horizontal position * @param y vertical position * @param w window width in pixel * @param h window height in pixels */ virtual void window (unsigned int x,unsigned int y, unsigned int w, unsigned int h); /** Init the HX8347D controller * */ void tft_reset(); /** Write data to the LCD controller * * @param dat data written to LCD controller * */ //void wr_dat(unsigned int value); void wr_dat(unsigned char value); /** Write a command the LCD controller * * @param cmd: command to be written * */ void wr_cmd(unsigned char value); /** Start data sequence to the LCD controller * */ //void wr_dat_start(); /** Stop of data writing to the LCD controller * */ //void wr_dat_stop(); /** write data to the LCD controller * * @param data to be written * * */ //void wr_dat_only(unsigned short dat); /** Read data from the LCD controller * * @returns data from LCD controller * */ //unsigned short rd_dat(void); /** Write a value to the to a LCD register * * @param reg register to be written * @param val data to be written */ //void wr_reg (unsigned char reg, unsigned char val); /** Read a LCD register * * @param reg register to be read * @returns value of the register */ //unsigned short rd_reg (unsigned char reg); unsigned char spi_port; unsigned int orientation; unsigned int char_x; unsigned int char_y; }; #endif