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Diff: SPI_TFT_ILI9341.h
- Revision:
- 0:1b3481785d59
diff -r 000000000000 -r 1b3481785d59 SPI_TFT_ILI9341.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SPI_TFT_ILI9341.h Sun Jun 16 20:26:22 2019 +0000 @@ -0,0 +1,410 @@ +/* mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller + * Copyright (c) 2013 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 and IO's 8-10 + * SPI_TFT_ILI9341 TFT(p5, p6, p7, p8, p9, p10,"TFT"); // mosi, miso, sclk, cs, reset, dc + * If your display need a signal for switch the backlight use a aditional IO pin in your program + * + * 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); + * 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 SPI { + public: + + /** Create a SPI_TFT object connected to SPI and three pins + * + * @param mosi pin connected to SDO of display + * @param miso pin connected to SDI of display + * @param sclk pin connected to RS of display + * @param cs pin connected to CS of display + * @param reset pin connected to RESET of display + * @param dc pin connected to WR of display + * the IM pins have to be set to 1110 (3-0) + */ + 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 + * + * @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 * + */ + 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 filesytem on the TFT (slow) + * + * @param x,y : position of upper left corner + * @param *Name_BMP name of the BMP file with drive: "/local/test.bmp" + * + * @returns 1 if bmp file was found and painted + * @returns 0 if bmp file was found not found + * @returns -1 if file is no bmp + * @returns -2 if bmp file is no 16 bit bmp + * @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 or SD card + */ + + 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) + * + */ + void set_orientation(unsigned int o); + + + /** read out the manufacturer ID of the LCD + * can used for checking the connection to the display + * @returns ID + */ + int Read_ID(void); + + 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 ILI9341 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 byte from the LCD controller + * + * @param cmd comand to controller + * @returns data from LCD controller + * + */ + char rd_byte(unsigned char cmd); + + + int rd_32(unsigned char cmd); + + + /** 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); + + #if defined TARGET_NUCLEO_L152RE || defined TARGET_NUCLEO_F103RB || defined TARGET_LPC1768 + /** fast SPI write function for optimized versions + * + * @param data data written to SPI + * + */ + virtual void f_write(int data); + virtual void spi_bsy(void); + virtual void spi_16(bool s); + + #endif + + unsigned char spi_port; + unsigned int orientation; + unsigned int char_x; + unsigned int char_y; + unsigned char spi_num; + + +}; + +#endif