Qing Xia
my SPI_TFT_ILI9341 lib
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SPI_TFT_ILI9341
by 
Peter Drescher
Diff: SPI_TFT_ILI9341.h
- Revision:
- 0:da1bf437cbc1
- Child:
- 1:6d6125e88de7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341.h Wed Jun 12 22:54:38 2013 +0000
@@ -0,0 +1,388 @@
+/* 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