Haris Šoljić
Library for TFT via SPI
Dependents: mbed_projekt_tetris Ejemplo_TFT
Revision 0:b8956708b92f, committed 2018-06-18
- Comitter:
- 2018US_HarisSoljic
- Date:
- Mon Jun 18 20:01:55 2018 +0000
- Commit message:
- revi?n;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/GraphicsDisplay.cpp Mon Jun 18 20:01:55 2018 +0000
@@ -0,0 +1,176 @@
+/* mbed GraphicsDisplay Display Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+
+#include "GraphicsDisplay.h"
+
+const unsigned char FONT8x8[97][8] = {
+0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20
+0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // !
+0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // "
+0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // #
+0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $
+0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // %
+0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // &
+0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // '
+0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // (
+0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // )
+0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // *
+0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // +
+0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // ,
+0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // -
+0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // .
+0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash)
+0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30
+0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1
+0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2
+0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3
+0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4
+0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5
+0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6
+0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7
+0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8
+0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9
+0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // :
+0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ;
+0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // <
+0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // =
+0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // >
+0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ?
+0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40
+0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A
+0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B
+0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C
+0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D
+0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E
+0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F
+0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G
+0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H
+0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I
+0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J
+0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K
+0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L
+0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M
+0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N
+0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O
+0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50
+0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q
+0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R
+0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S
+0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T
+0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U
+0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V
+0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W
+0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X
+0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y
+0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z
+0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [
+0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash)
+0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ]
+0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _
+0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60
+0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a
+0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b
+0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c
+0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d
+0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e
+0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f
+0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g
+0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h
+0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i
+0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j
+0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k
+0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l
+0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m
+0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n
+0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o
+0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p
+0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q
+0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r
+0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s
+0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t
+0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u
+0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v
+0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w
+0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x
+0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y
+0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z
+0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // {
+0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // |
+0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // }
+0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~
+0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}; // DEL
+
+GraphicsDisplay::GraphicsDisplay(const char *name):TextDisplay(name) {
+ foreground(0xFFFF);
+ background(0x0000);
+}
+
+void GraphicsDisplay::character(int column, int row, int value) {
+ blitbit(column * 8, row * 8, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
+}
+
+void GraphicsDisplay::window(unsigned int x,unsigned int y,unsigned int w,unsigned int h) {
+ // current pixel location
+ _x = x;
+ _y = y;
+ // window settings
+ _x1 = x;
+ _x2 = x + w - 1;
+ _y1 = y;
+ _y2 = y + h - 1;
+}
+
+void GraphicsDisplay::putp(int colour) {
+ // put pixel at current pixel location
+ pixel(_x, _y, colour);
+ // update pixel location based on window settings
+ _x++;
+ if(_x > _x2) {
+ _x = _x1;
+ _y++;
+ if(_y > _y2) {
+ _y = _y1;
+ }
+ }
+}
+
+void GraphicsDisplay::fill(int x, int y, int w, int h, int colour) {
+ window(x, y, w, h);
+ for(int i=0; i<w*h; i++) {
+ putp(colour);
+ }
+}
+
+void GraphicsDisplay::cls() {
+ fill(0, 0, width(), height(), _background);
+}
+
+void GraphicsDisplay::blit(int x, int y, int w, int h, const int *colour) {
+ window(x, y, w, h);
+ for(int i=0; i<w*h; i++) {
+ putp(colour[i]);
+ }
+}
+
+void GraphicsDisplay::blitbit(int x, int y, int w, int h, const char* colour) {
+ window(x, y, w, h);
+ for(int i = 0; i < w*h; i++) {
+ char byte = colour[i >> 3];
+ int offset = i & 0x7;
+ int c = ((byte << offset) & 0x80) ? _foreground : _background;
+ putp(c);
+ }
+}
+
+int GraphicsDisplay::columns() {
+ return width() / 8;
+}
+
+int GraphicsDisplay::rows() {
+ return height() / 8;
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/GraphicsDisplay.h Mon Jun 18 20:01:55 2018 +0000
@@ -0,0 +1,55 @@
+/* mbed GraphicsDisplay Display Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * A library for providing a common base class for Graphics displays
+ * To port a new display, derive from this class and implement
+ * the constructor (setup the display), pixel (put a pixel
+ * at a location), width and height functions. Everything else
+ * (locate, printf, putc, cls, window, putp, fill, blit, blitbit)
+ * will come for free. You can also provide a specialised implementation
+ * of window and putp to speed up the results
+ */
+
+#ifndef MBED_GRAPHICSDISPLAY_H
+#define MBED_GRAPHICSDISPLAY_H
+
+#include "TextDisplay.h"
+
+class GraphicsDisplay : public TextDisplay {
+
+public:
+
+ GraphicsDisplay(const char* name);
+
+ virtual void pixel(int x, int y, int colour) = 0;
+ virtual int width() = 0;
+ virtual int height() = 0;
+
+ virtual void window(unsigned int x,unsigned int y,unsigned int w,unsigned int h);
+ virtual void putp(int colour);
+
+ virtual void cls();
+ virtual void fill(int x, int y, int w, int h, int colour);
+ virtual void blit(int x, int y, int w, int h, const int *colour);
+ virtual void blitbit(int x, int y, int w, int h, const char* colour);
+
+ virtual void character(int column, int row, int value);
+ virtual int columns();
+ virtual int rows();
+
+protected:
+
+ // pixel location
+ short _x;
+ short _y;
+
+ // window location
+ short _x1;
+ short _x2;
+ short _y1;
+ short _y2;
+
+};
+
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341.cpp Mon Jun 18 20:01:55 2018 +0000
@@ -0,0 +1,807 @@
+/* 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.
+ */
+
+// 12.06.13 fork from SPI_TFT code because controller is different ...
+// 14.07.13 Test with real display and bugfix
+// 18.10.13 Better Circle function from Michael Ammann
+// 22.10.13 Fixes for Kinetis Board - 8 bit spi
+// 26.01.14 Change interface for BMP_16 to also use SD-cards
+// 23.06.14 switch back to old Version - fork for L152
+// 24.06.14 Add compiler flag for optimized L152 version
+// 25.06.14 Add optimized F103 version
+
+// exclude this file for platforms with optimized version
+#if defined TARGET_NUCLEO_L152RE || defined TARGET_NUCLEO_F103RB || defined TARGET_LPC1768
+// this platforms are supported by special version in different source file
+#else
+
+#include "SPI_TFT_ILI9341.h"
+#include "mbed.h"
+
+#define BPP 16 // Bits per pixel
+
+//extern Serial pc;
+//extern DigitalOut xx; // debug !!
+
+SPI_TFT_ILI9341::SPI_TFT_ILI9341(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName dc, const char *name)
+ : GraphicsDisplay(name), SPI(mosi, miso, sclk,NC), _cs(cs), _reset(reset), _dc(dc)
+{
+
+ orientation = 0;
+ char_x = 0;
+ SPI::format(8,3); // 8 bit spi mode 3
+ SPI::frequency(10000000); // 10 Mhz SPI clock
+ tft_reset();
+}
+
+int SPI_TFT_ILI9341::width()
+{
+ if (orientation == 0 || orientation == 2) return 240;
+ else return 320;
+}
+
+
+int SPI_TFT_ILI9341::height()
+{
+ if (orientation == 0 || orientation == 2) return 320;
+ else return 240;
+}
+
+
+void SPI_TFT_ILI9341::set_orientation(unsigned int o)
+{
+ orientation = o;
+ wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
+ switch (orientation) {
+ case 0:
+ SPI::write(0x48);
+ break;
+ case 1:
+ SPI::write(0x28);
+ break;
+ case 2:
+ SPI::write(0x88);
+ break;
+ case 3:
+ SPI::write(0xE8);
+ break;
+ }
+ _cs = 1;
+ WindowMax();
+}
+
+
+// write command to tft register
+
+void SPI_TFT_ILI9341::wr_cmd(unsigned char cmd)
+{
+ _dc = 0;
+ _cs = 0;
+ SPI::write(cmd); // mbed lib
+ _dc = 1;
+}
+
+
+
+void SPI_TFT_ILI9341::wr_dat(unsigned char dat)
+{
+ SPI::write(dat); // mbed lib
+}
+
+
+
+// the ILI9341 can read
+
+char SPI_TFT_ILI9341::rd_byte(unsigned char cmd)
+{
+ char r;
+ _dc = 0;
+ _cs = 0;
+ SPI::write(cmd); // mbed lib
+ _cs = 1;
+ r = SPI::write(0xff);
+ _cs = 1;
+ return(r);
+}
+
+// read 32 bit
+int SPI_TFT_ILI9341::rd_32(unsigned char cmd)
+{
+ int d;
+ char r;
+ _dc = 0;
+ _cs = 0;
+ d = cmd;
+ d = d << 1;
+ SPI::format(9,3); // we have to add a dummy clock cycle
+ SPI::write(d);
+ SPI::format(8,3);
+ _dc = 1;
+ r = SPI::write(0xff);
+ d = r;
+ r = SPI::write(0xff);
+ d = (d << 8) | r;
+ r = SPI::write(0xff);
+ d = (d << 8) | r;
+ r = SPI::write(0xff);
+ d = (d << 8) | r;
+ _cs = 1;
+ return(d);
+}
+
+int SPI_TFT_ILI9341::Read_ID(void){
+ int r;
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ return(r);
+}
+
+
+// Init code based on MI0283QT datasheet
+
+void SPI_TFT_ILI9341::tft_reset()
+{
+ _cs = 1; // cs high
+ _dc = 1; // dc high
+ _reset = 0; // display reset
+
+ wait_us(50);
+ _reset = 1; // end hardware reset
+ wait_ms(5);
+
+ wr_cmd(0x01); // SW reset
+ wait_ms(5);
+ wr_cmd(0x28); // display off
+
+ /* Start Initial Sequence ----------------------------------------------------*/
+ wr_cmd(0xCF);
+ SPI::write(0x00);
+ SPI::write(0x83);
+ SPI::write(0x30);
+ _cs = 1;
+
+ wr_cmd(0xED);
+ SPI::write(0x64);
+ SPI::write(0x03);
+ SPI::write(0x12);
+ SPI::write(0x81);
+ _cs = 1;
+
+ wr_cmd(0xE8);
+ SPI::write(0x85);
+ SPI::write(0x01);
+ SPI::write(0x79);
+ _cs = 1;
+
+ wr_cmd(0xCB);
+ SPI::write(0x39);
+ SPI::write(0x2C);
+ SPI::write(0x00);
+ SPI::write(0x34);
+ SPI::write(0x02);
+ _cs = 1;
+
+ wr_cmd(0xF7);
+ SPI::write(0x20);
+ _cs = 1;
+
+ wr_cmd(0xEA);
+ SPI::write(0x00);
+ SPI::write(0x00);
+ _cs = 1;
+
+ wr_cmd(0xC0); // POWER_CONTROL_1
+ SPI::write(0x26);
+ _cs = 1;
+
+ wr_cmd(0xC1); // POWER_CONTROL_2
+ SPI::write(0x11);
+ _cs = 1;
+
+ wr_cmd(0xC5); // VCOM_CONTROL_1
+ SPI::write(0x35);
+ SPI::write(0x3E);
+ _cs = 1;
+
+ wr_cmd(0xC7); // VCOM_CONTROL_2
+ SPI::write(0xBE);
+ _cs = 1;
+
+ wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
+ SPI::write(0x48);
+ _cs = 1;
+
+ wr_cmd(0x3A); // COLMOD_PIXEL_FORMAT_SET
+ SPI::write(0x55); // 16 bit pixel
+ _cs = 1;
+
+ wr_cmd(0xB1); // Frame Rate
+ SPI::write(0x00);
+ SPI::write(0x1B);
+ _cs = 1;
+
+ wr_cmd(0xF2); // Gamma Function Disable
+ SPI::write(0x08);
+ _cs = 1;
+
+ wr_cmd(0x26);
+ SPI::write(0x01); // gamma set for curve 01/2/04/08
+ _cs = 1;
+
+ wr_cmd(0xE0); // positive gamma correction
+ SPI::write(0x1F);
+ SPI::write(0x1A);
+ SPI::write(0x18);
+ SPI::write(0x0A);
+ SPI::write(0x0F);
+ SPI::write(0x06);
+ SPI::write(0x45);
+ SPI::write(0x87);
+ SPI::write(0x32);
+ SPI::write(0x0A);
+ SPI::write(0x07);
+ SPI::write(0x02);
+ SPI::write(0x07);
+ SPI::write(0x05);
+ SPI::write(0x00);
+ _cs = 1;
+
+ wr_cmd(0xE1); // negativ gamma correction
+ SPI::write(0x00);
+ SPI::write(0x25);
+ SPI::write(0x27);
+ SPI::write(0x05);
+ SPI::write(0x10);
+ SPI::write(0x09);
+ SPI::write(0x3A);
+ SPI::write(0x78);
+ SPI::write(0x4D);
+ SPI::write(0x05);
+ SPI::write(0x18);
+ SPI::write(0x0D);
+ SPI::write(0x38);
+ SPI::write(0x3A);
+ SPI::write(0x1F);
+ _cs = 1;
+
+ WindowMax ();
+
+ //wr_cmd(0x34); // tearing effect off
+ //_cs = 1;
+
+ //wr_cmd(0x35); // tearing effect on
+ //_cs = 1;
+
+ wr_cmd(0xB7); // entry mode
+ SPI::write(0x07);
+ _cs = 1;
+
+ wr_cmd(0xB6); // display function control
+ SPI::write(0x0A);
+ SPI::write(0x82);
+ SPI::write(0x27);
+ SPI::write(0x00);
+ _cs = 1;
+
+ wr_cmd(0x11); // sleep out
+ _cs = 1;
+
+ wait_ms(100);
+
+ wr_cmd(0x29); // display on
+ _cs = 1;
+
+ wait_ms(100);
+
+ }
+
+
+void SPI_TFT_ILI9341::pixel(int x, int y, int color)
+{
+ wr_cmd(0x2A);
+ SPI::write(x >> 8);
+ SPI::write(x);
+ _cs = 1;
+ wr_cmd(0x2B);
+ SPI::write(y >> 8);
+ SPI::write(y);
+ _cs = 1;
+ wr_cmd(0x2C); // send pixel
+ #if defined TARGET_KL25Z // 8 Bit SPI
+ SPI::write(color >> 8);
+ SPI::write(color & 0xff);
+ #else
+ SPI::format(16,3); // switch to 16 bit Mode 3
+ SPI::write(color); // Write D0..D15
+ SPI::format(8,3);
+ #endif
+ _cs = 1;
+}
+
+
+void SPI_TFT_ILI9341::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
+{
+ wr_cmd(0x2A);
+ SPI::write(x >> 8);
+ SPI::write(x);
+ SPI::write((x+w-1) >> 8);
+ SPI::write(x+w-1);
+
+ _cs = 1;
+ wr_cmd(0x2B);
+ SPI::write(y >> 8);
+ SPI::write(y);
+ SPI::write((y+h-1) >> 8);
+ SPI::write(y+h-1);
+ _cs = 1;
+}
+
+
+void SPI_TFT_ILI9341::WindowMax (void)
+{
+ window (0, 0, width(), height());
+}
+
+
+
+void SPI_TFT_ILI9341::cls (void)
+{
+ // we can use the fillrect function
+ fillrect(0,0,width()-1,height()-1,_background);
+}
+
+
+void SPI_TFT_ILI9341::circle(int x0, int y0, int r, int color)
+{
+
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ pixel(x0-x, y0+y,color);
+ pixel(x0+x, y0+y,color);
+ pixel(x0+x, y0-y,color);
+ pixel(x0-x, y0-y,color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+
+}
+
+void SPI_TFT_ILI9341::fillcircle(int x0, int y0, int r, int color)
+{
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ vline(x0-x, y0-y, y0+y, color);
+ vline(x0+x, y0-y, y0+y, color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+}
+
+
+void SPI_TFT_ILI9341::hline(int x0, int x1, int y, int color)
+{
+ int w;
+ w = x1 - x0 + 1;
+ window(x0,y,w,1);
+ wr_cmd(0x2C); // send pixel
+ #if defined TARGET_KL25Z // 8 Bit SPI
+ int j;
+ for (j=0; j<w; j++) {
+ SPI::write(color >> 8);
+ SPI::write(color & 0xff);
+ }
+ #else
+ SPI::format(16,3); // switch to 16 bit Mode 3
+ int j;
+ for (j=0; j<w; j++) {
+ SPI::write(color);
+ }
+ SPI::format(8,3);
+ #endif
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+void SPI_TFT_ILI9341::vline(int x, int y0, int y1, int color)
+{
+ int h;
+ h = y1 - y0 + 1;
+ window(x,y0,1,h);
+ wr_cmd(0x2C); // send pixel
+ #if defined TARGET_KL25Z // 8 Bit SPI
+ for (int y=0; y<h; y++) {
+ SPI::write(color >> 8);
+ SPI::write(color & 0xff);
+ }
+ #else
+ SPI::format(16,3); // switch to 16 bit Mode 3
+ for (int y=0; y<h; y++) {
+ SPI::write(color);
+ }
+ SPI::format(8,3);
+ #endif
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+
+
+void SPI_TFT_ILI9341::line(int x0, int y0, int x1, int y1, int color)
+{
+ //WindowMax();
+ int dx = 0, dy = 0;
+ int dx_sym = 0, dy_sym = 0;
+ int dx_x2 = 0, dy_x2 = 0;
+ int di = 0;
+
+ dx = x1-x0;
+ dy = y1-y0;
+
+ if (dx == 0) { /* vertical line */
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+ return;
+ }
+
+ if (dx > 0) {
+ dx_sym = 1;
+ } else {
+ dx_sym = -1;
+ }
+ if (dy == 0) { /* horizontal line */
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+ return;
+ }
+
+ if (dy > 0) {
+ dy_sym = 1;
+ } else {
+ dy_sym = -1;
+ }
+
+ dx = dx_sym*dx;
+ dy = dy_sym*dy;
+
+ dx_x2 = dx*2;
+ dy_x2 = dy*2;
+
+ if (dx >= dy) {
+ di = dy_x2 - dx;
+ while (x0 != x1) {
+
+ pixel(x0, y0, color);
+ x0 += dx_sym;
+ if (di<0) {
+ di += dy_x2;
+ } else {
+ di += dy_x2 - dx_x2;
+ y0 += dy_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ } else {
+ di = dx_x2 - dy;
+ while (y0 != y1) {
+ pixel(x0, y0, color);
+ y0 += dy_sym;
+ if (di < 0) {
+ di += dx_x2;
+ } else {
+ di += dx_x2 - dy_x2;
+ x0 += dx_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ }
+ return;
+}
+
+
+void SPI_TFT_ILI9341::rect(int x0, int y0, int x1, int y1, int color)
+{
+
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+
+ if (x1 > x0) hline(x0,x1,y1,color);
+ else hline(x1,x0,y1,color);
+
+ if (y1 > y0) vline(x1,y0,y1,color);
+ else vline(x1,y1,y0,color);
+
+ return;
+}
+
+
+
+void SPI_TFT_ILI9341::fillrect(int x0, int y0, int x1, int y1, int color)
+{
+
+ int h = y1 - y0 + 1;
+ int w = x1 - x0 + 1;
+ int pixel = h * w;
+ window(x0,y0,w,h);
+ wr_cmd(0x2C); // send pixel
+ #if defined TARGET_KL25Z // 8 Bit SPI
+ for (int p=0; p<pixel; p++) {
+ SPI::write(color >> 8);
+ SPI::write(color & 0xff);
+ }
+ #else
+ SPI::format(16,3); // switch to 16 bit Mode 3
+ for (int p=0; p<pixel; p++) {
+ SPI::write(color);
+ }
+ SPI::format(8,3);
+ #endif
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+
+void SPI_TFT_ILI9341::locate(int x, int y)
+{
+ char_x = x;
+ char_y = y;
+}
+
+
+
+int SPI_TFT_ILI9341::columns()
+{
+ return width() / font[1];
+}
+
+
+
+int SPI_TFT_ILI9341::rows()
+{
+ return height() / font[2];
+}
+
+
+
+int SPI_TFT_ILI9341::_putc(int value)
+{
+ if (value == '\n') { // new line
+ char_x = 0;
+ char_y = char_y + font[2];
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ } else {
+ character(char_x, char_y, value);
+ }
+ return value;
+}
+
+
+void SPI_TFT_ILI9341::character(int x, int y, int c)
+{
+ unsigned int hor,vert,offset,bpl,j,i,b;
+ unsigned char* zeichen;
+ unsigned char z,w;
+
+ if ((c < 31) || (c > 127)) return; // test char range
+
+ // read font parameter from start of array
+ offset = font[0]; // bytes / char
+ hor = font[1]; // get hor size of font
+ vert = font[2]; // get vert size of font
+ bpl = font[3]; // bytes per line
+
+ if (char_x + hor > width()) {
+ char_x = 0;
+ char_y = char_y + vert;
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ }
+ window(char_x, char_y,hor,vert); // char box
+ wr_cmd(0x2C); // send pixel
+ #ifndef TARGET_KL25Z // 16 Bit SPI
+ SPI::format(16,3);
+ #endif // switch to 16 bit Mode 3
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ #ifndef TARGET_KL25Z // 16 Bit SPI
+ SPI::write(_background);
+ #else
+ SPI::write(_background >> 8);
+ SPI::write(_background & 0xff);
+ #endif
+ } else {
+ #ifndef TARGET_KL25Z // 16 Bit SPI
+ SPI::write(_foreground);
+ #else
+ SPI::write(_foreground >> 8);
+ SPI::write(_foreground & 0xff);
+ #endif
+ }
+ }
+ }
+ _cs = 1;
+ #ifndef TARGET_KL25Z // 16 Bit SPI
+ SPI::format(8,3);
+ #endif
+ WindowMax();
+ if ((w + 2) < hor) { // x offset to next char
+ char_x += w + 2;
+ } else char_x += hor;
+}
+
+
+void SPI_TFT_ILI9341::set_font(unsigned char* f)
+{
+ font = f;
+}
+
+
+
+void SPI_TFT_ILI9341::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
+{
+ unsigned int j;
+ int padd;
+ unsigned short *bitmap_ptr = (unsigned short *)bitmap;
+ #if defined TARGET_KL25Z // 8 Bit SPI
+ unsigned short pix_temp;
+ #endif
+
+ unsigned int i;
+
+ // the lines are padded to multiple of 4 bytes in a bitmap
+ padd = -1;
+ do {
+ padd ++;
+ } while (2*(w + padd)%4 != 0);
+ window(x, y, w, h);
+ bitmap_ptr += ((h - 1)* (w + padd));
+ wr_cmd(0x2C); // send pixel
+ #ifndef TARGET_KL25Z // 16 Bit SPI
+ SPI::format(16,3);
+ #endif // switch to 16 bit Mode 3
+ for (j = 0; j < h; j++) { //Lines
+ for (i = 0; i < w; i++) { // one line
+ #if defined TARGET_KL25Z // 8 Bit SPI
+ pix_temp = *bitmap_ptr;
+ SPI::write(pix_temp >> 8);
+ SPI::write(pix_temp);
+ bitmap_ptr++;
+ #else
+ SPI::write(*bitmap_ptr); // one line
+ bitmap_ptr++;
+ #endif
+ }
+ bitmap_ptr -= 2*w;
+ bitmap_ptr -= padd;
+ }
+ _cs = 1;
+ #ifndef TARGET_KL25Z // 16 Bit SPI
+ SPI::format(8,3);
+ #endif
+ WindowMax();
+}
+
+
+// local filesystem is not implemented in kinetis board , but you can add a SD card
+
+int SPI_TFT_ILI9341::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
+{
+
+#define OffsetPixelWidth 18
+#define OffsetPixelHeigh 22
+#define OffsetFileSize 34
+#define OffsetPixData 10
+#define OffsetBPP 28
+
+ char filename[50];
+ unsigned char BMP_Header[54];
+ unsigned short BPP_t;
+ unsigned int PixelWidth,PixelHeigh,start_data;
+ unsigned int i,off;
+ int padd,j;
+ unsigned short *line;
+
+ // get the filename
+ i=0;
+ while (*Name_BMP!='\0') {
+ filename[i++]=*Name_BMP++;
+ }
+ filename[i] = 0;
+
+ FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
+ if (!Image) {
+ return(0); // error file not found !
+ }
+
+ fread(&BMP_Header[0],1,54,Image); // get the BMP Header
+
+ if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
+ fclose(Image);
+ return(-1); // error no BMP file
+ }
+
+ BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
+ if (BPP_t != 0x0010) {
+ fclose(Image);
+ return(-2); // error no 16 bit BMP
+ }
+
+ PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
+ PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
+ if (PixelHeigh > height() + y || PixelWidth > width() + x) {
+ fclose(Image);
+ return(-3); // to big
+ }
+
+ start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
+
+ line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
+ if (line == NULL) {
+ return(-4); // error no memory
+ }
+
+ // the bmp lines are padded to multiple of 4 bytes
+ padd = -1;
+ do {
+ padd ++;
+ } while ((PixelWidth * 2 + padd)%4 != 0);
+
+ window(x, y,PixelWidth ,PixelHeigh);
+ wr_cmd(0x2C); // send pixel
+ #ifndef TARGET_KL25Z // only 8 Bit SPI
+ SPI::format(16,3);
+ #endif // switch to 16 bit Mode 3
+ for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
+ off = j * (PixelWidth * 2 + padd) + start_data; // start of line
+ fseek(Image, off ,SEEK_SET);
+ fread(line,1,PixelWidth * 2,Image); // read a line - slow
+ for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
+ #ifndef TARGET_KL25Z // only 8 Bit SPI
+ SPI::write(line[i]); // one 16 bit pixel
+ #else
+ SPI::write(line[i] >> 8);
+ SPI::write(line[i]);
+ #endif
+ }
+ }
+ _cs = 1;
+ SPI::format(8,3);
+ free (line);
+ fclose(Image);
+ WindowMax();
+ return(1);
+}
+
+#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341.h Mon Jun 18 20:01:55 2018 +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
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341_NUCLEO.cpp Mon Jun 18 20:01:55 2018 +0000
@@ -0,0 +1,1048 @@
+/* mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
+ * Copyright (c) 2013, 2014 Peter Drescher - DC2PD
+ * Special version for STM Nucleo -L152
+ *
+ * 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.
+ */
+
+ // 24.06.14 initial version
+ // 25.06.14 add Nucleo F103RB
+
+// only include this file if target is L152 or F103RB :
+#if defined TARGET_NUCLEO_L152RE || defined TARGET_NUCLEO_F103RB
+
+#include "SPI_TFT_ILI9341.h"
+#include "mbed.h"
+
+#if defined TARGET_NUCLEO_L152RE
+#include "stm32l1xx_dma.h"
+#define use_ram
+#endif
+
+#if defined TARGET_NUCLEO_F103RB
+#include "stm32f10x_dma.h"
+#endif
+
+#define BPP 16 // Bits per pixel
+
+//extern Serial pc;
+//extern DigitalOut xx; // debug !!
+
+DMA_InitTypeDef DMA_InitStructure;
+
+
+SPI_TFT_ILI9341::SPI_TFT_ILI9341(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName dc, const char *name)
+ : GraphicsDisplay(name), SPI(mosi,miso,sclk,NC), _cs(cs), _reset(reset), _dc(dc)
+{
+
+ format(8,3); // 8 bit spi mode 3
+ frequency(10000000); // 10 Mhz SPI clock : result 2 / 4 = 8
+ orientation = 0;
+ char_x = 0;
+ if(_spi.spi == SPI_1){ // test which SPI is in use
+ spi_num = 1;
+ }
+ if(_spi.spi == SPI_2){
+ spi_num = 2;
+ }
+ #ifdef SPI_3 // there is no SPI 3 on all devices
+ if(_spi.spi == SPI_3){
+ spi_num = 3;
+ }
+ #endif
+ tft_reset();
+}
+
+// we define a fast write to the SPI port
+// we use the bit banding address to get the flag without masking
+
+#define bit_SPI1_txe *((volatile unsigned int *)0x42260104)
+#define SPI1_DR *((volatile unsigned int *)0x4001300C)
+#define bit_SPI2_txe *((volatile unsigned int *)0x42070104)
+#define SPI2_DR *((volatile unsigned int *)0x4000380C)
+#define bit_SPI3_txe *((volatile unsigned int *)0x42078104)
+#define SPI3_DR *((volatile unsigned int *)0x40003C0C)
+
+void SPI_TFT_ILI9341::f_write(int data){
+
+switch(spi_num){ // used SPI port
+case (1):
+ while(bit_SPI1_txe == 0); // wait for SPI1->SR TXE flag
+ SPI1_DR = data;
+ break;
+
+case (2):
+ while( bit_SPI2_txe == 0); // wait for SPI2->SR TXE flag
+ SPI2_DR = data;
+ break;
+
+case (3):
+ while( bit_SPI3_txe == 0); // wait for SPI3->SR TXE flag
+ SPI3_DR = data;
+ break;
+
+ }
+}
+
+// wait for SPI not busy
+// we have to wait for the last bit to switch the cs off
+// we use the bit banding address to get the flag without masking
+
+#define bit_SPI1_bsy *((volatile unsigned int *)0x4226011C)
+#define bit_SPI2_bsy *((volatile unsigned int *)0x4207011C)
+#define bit_SPI3_bsy *((volatile unsigned int *)0x4207811C)
+
+void inline SPI_TFT_ILI9341::spi_bsy(void){
+switch(spi_num){ // decide which SPI is to use
+case (1):
+ while(bit_SPI1_bsy == 1); // SPI1->SR bit 7
+ break;
+
+case (2):
+ while(bit_SPI2_bsy == 1); // SPI2->SR bit 7
+ break;
+
+case (3):
+ while(bit_SPI3_bsy == 1); // SPI2->SR bit 7
+ break;
+ }
+}
+
+
+// switch fast between 8 and 16 bit mode
+#define bit_SPI1_dff *((volatile unsigned int *)0x4226002C)
+#define bit_SPI2_dff *((volatile unsigned int *)0x4207002C)
+#define bit_SPI3_dff *((volatile unsigned int *)0x4207802C)
+void SPI_TFT_ILI9341::spi_16(bool s){
+switch(spi_num){ // decide which SPI is to use
+case(1):
+ if(s) bit_SPI1_dff = 1; // switch to 16 bit Mode
+ else bit_SPI1_dff = 0; // switch to 8 bit Mode
+ break;
+
+case(2):
+ if(s) bit_SPI2_dff = 1; // switch to 16 bit Mode
+ else bit_SPI2_dff = 0; // switch to 8 bit Mode
+ break;
+
+case(3):
+ if(s) bit_SPI3_dff = 1; // switch to 16 bit Mode
+ else bit_SPI3_dff = 0; // switch to 8 bit Mode
+ break;
+ }
+}
+
+
+int SPI_TFT_ILI9341::width()
+{
+ if (orientation == 0 || orientation == 2) return 240;
+ else return 320;
+}
+
+
+int SPI_TFT_ILI9341::height()
+{
+ if (orientation == 0 || orientation == 2) return 320;
+ else return 240;
+}
+
+
+void SPI_TFT_ILI9341::set_orientation(unsigned int o)
+{
+ orientation = o;
+ wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
+ switch (orientation) {
+ case 0:
+ f_write(0x48);
+ break;
+ case 1:
+ f_write(0x28);
+ break;
+ case 2:
+ f_write(0x88);
+ break;
+ case 3:
+ f_write(0xE8);
+ break;
+ }
+ spi_bsy(); // wait for end of transfer
+ _cs = 1;
+ WindowMax();
+}
+
+
+// write command to tft register
+// use fast command
+void SPI_TFT_ILI9341::wr_cmd(unsigned char cmd)
+{
+ _dc = 0;
+ _cs = 0;
+ f_write(cmd);
+ spi_bsy();
+ _dc = 1;
+}
+
+void SPI_TFT_ILI9341::wr_dat(unsigned char dat)
+{
+ f_write(dat);
+ spi_bsy(); // wait for SPI send
+}
+
+// the ILI9341 can read
+char SPI_TFT_ILI9341::rd_byte(unsigned char cmd)
+{
+ // has to change !!
+ return(0);
+}
+
+// read 32 bit
+int SPI_TFT_ILI9341::rd_32(unsigned char cmd)
+{
+ // has to change !!!
+ return(0);
+}
+
+int SPI_TFT_ILI9341::Read_ID(void){
+ int r;
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ return(r);
+}
+
+
+// Init code based on MI0283QT datasheet
+// this code is called only at start
+// no need to be optimized
+
+void SPI_TFT_ILI9341::tft_reset()
+{
+ _cs = 1; // cs high
+ _dc = 1; // dc high
+ _reset = 0; // display reset
+
+ wait_us(50);
+ _reset = 1; // end hardware reset
+ wait_ms(5);
+
+ wr_cmd(0x01); // SW reset
+ wait_ms(5);
+ wr_cmd(0x28); // display off
+
+ /* Start Initial Sequence ----------------------------------------------------*/
+ wr_cmd(0xCF);
+ f_write(0x00);
+ f_write(0x83);
+ f_write(0x30);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xED);
+ f_write(0x64);
+ f_write(0x03);
+ f_write(0x12);
+ f_write(0x81);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xE8);
+ f_write(0x85);
+ f_write(0x01);
+ f_write(0x79);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xCB);
+ f_write(0x39);
+ f_write(0x2C);
+ f_write(0x00);
+ f_write(0x34);
+ f_write(0x02);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xF7);
+ f_write(0x20);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xEA);
+ f_write(0x00);
+ f_write(0x00);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC0); // POWER_CONTROL_1
+ f_write(0x26);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC1); // POWER_CONTROL_2
+ f_write(0x11);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC5); // VCOM_CONTROL_1
+ f_write(0x35);
+ f_write(0x3E);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC7); // VCOM_CONTROL_2
+ f_write(0xBE);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
+ f_write(0x48);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x3A); // COLMOD_PIXEL_FORMAT_SET
+ f_write(0x55); // 16 bit pixel
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xB1); // Frame Rate
+ f_write(0x00);
+ f_write(0x1B);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xF2); // Gamma Function Disable
+ f_write(0x08);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x26);
+ f_write(0x01); // gamma set for curve 01/2/04/08
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xE0); // positive gamma correction
+ f_write(0x1F);
+ f_write(0x1A);
+ f_write(0x18);
+ f_write(0x0A);
+ f_write(0x0F);
+ f_write(0x06);
+ f_write(0x45);
+ f_write(0x87);
+ f_write(0x32);
+ f_write(0x0A);
+ f_write(0x07);
+ f_write(0x02);
+ f_write(0x07);
+ f_write(0x05);
+ f_write(0x00);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xE1); // negativ gamma correction
+ f_write(0x00);
+ f_write(0x25);
+ f_write(0x27);
+ f_write(0x05);
+ f_write(0x10);
+ f_write(0x09);
+ f_write(0x3A);
+ f_write(0x78);
+ f_write(0x4D);
+ f_write(0x05);
+ f_write(0x18);
+ f_write(0x0D);
+ f_write(0x38);
+ f_write(0x3A);
+ f_write(0x1F);
+ spi_bsy();
+ _cs = 1;
+
+ WindowMax ();
+
+ //wr_cmd(0x34); // tearing effect off
+ //_cs = 1;
+
+ //wr_cmd(0x35); // tearing effect on
+ //_cs = 1;
+
+ wr_cmd(0xB7); // entry mode
+ f_write(0x07);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xB6); // display function control
+ f_write(0x0A);
+ f_write(0x82);
+ f_write(0x27);
+ f_write(0x00);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x11); // sleep out
+ spi_bsy();
+ _cs = 1;
+
+ wait_ms(100);
+
+ wr_cmd(0x29); // display on
+ spi_bsy();
+ _cs = 1;
+
+ wait_ms(100);
+
+ // Configure the DMA controller init-structure
+ DMA_StructInit(&DMA_InitStructure);
+ switch(spi_num){ // decide which SPI is to use
+ case (1):
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); // SPI1 and SPI2 are using DMA 1
+ DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t) &(SPI1->DR);
+ break;
+ case (2):
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); // SPI1 and SPI2 are using DMA 1
+ DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t) &(SPI2->DR);
+ break;
+ case (3):
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE); // SPI3 is using DMA 2
+ DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t) &(SPI3->DR);
+ break;
+ }
+ DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
+ DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
+ DMA_InitStructure.DMA_BufferSize = 0;
+ DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
+ DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
+ DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
+ DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
+ DMA_InitStructure.DMA_Priority = DMA_Priority_High;
+ }
+
+
+// speed optimized
+// write direct to SPI1 register !
+void SPI_TFT_ILI9341::pixel(int x, int y, int color)
+{
+ wr_cmd(0x2A);
+ spi_16(1); // switch to 8 bit Mode
+ f_write(x);
+ spi_bsy();
+ _cs = 1;
+
+ spi_16(0); // switch to 8 bit Mode
+ wr_cmd(0x2B);
+ spi_16(1);
+ f_write(y);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+ f_write(color);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+}
+
+// optimized
+// write direct to SPI1 register !
+void SPI_TFT_ILI9341::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
+{
+ wr_cmd(0x2A);
+ spi_16(1);
+ f_write(x);
+ f_write(x+w-1);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+
+ wr_cmd(0x2B);
+ spi_16(1);
+ f_write(y) ;
+ f_write(y+h-1);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+}
+
+
+void SPI_TFT_ILI9341::WindowMax (void)
+{
+ window (0, 0, width(), height());
+}
+
+// optimized
+// use DMA to transfer pixel data to the screen
+void SPI_TFT_ILI9341::cls (void)
+{
+ // we can use the fillrect function
+ fillrect(0,0,width()-1,height()-1,_background);
+}
+
+void SPI_TFT_ILI9341::circle(int x0, int y0, int r, int color)
+{
+
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ pixel(x0-x, y0+y,color);
+ pixel(x0+x, y0+y,color);
+ pixel(x0+x, y0-y,color);
+ pixel(x0-x, y0-y,color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+}
+
+void SPI_TFT_ILI9341::fillcircle(int x0, int y0, int r, int color)
+{
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ vline(x0-x, y0-y, y0+y, color);
+ vline(x0+x, y0-y, y0+y, color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+}
+
+
+// optimized for speed
+void SPI_TFT_ILI9341::hline(int x0, int x1, int y, int color)
+{
+ int w,j;
+ w = x1 - x0 + 1;
+ window(x0,y,w,1);
+ _dc = 0;
+ _cs = 0;
+ f_write(0x2C); // send pixel
+ spi_bsy();
+ _dc = 1;
+ spi_16(1);
+
+ for (j=0; j<w; j++) {
+ f_write(color);
+ }
+ spi_bsy();
+ spi_16(0);
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+// optimized for speed
+void SPI_TFT_ILI9341::vline(int x, int y0, int y1, int color)
+{
+ int h,y;
+ h = y1 - y0 + 1;
+ window(x,y0,1,h);
+ _dc = 0;
+ _cs = 0;
+ f_write(0x2C); // send pixel
+ spi_bsy();
+ _dc = 1;
+ spi_16(1);
+ // switch to 16 bit Mode 3
+ for (y=0; y<h; y++) {
+ f_write(color);
+ }
+ spi_bsy();
+ spi_16(0);
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+
+void SPI_TFT_ILI9341::line(int x0, int y0, int x1, int y1, int color)
+{
+ //WindowMax();
+ int dx = 0, dy = 0;
+ int dx_sym = 0, dy_sym = 0;
+ int dx_x2 = 0, dy_x2 = 0;
+ int di = 0;
+
+ dx = x1-x0;
+ dy = y1-y0;
+
+ if (dx == 0) { /* vertical line */
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+ return;
+ }
+
+ if (dx > 0) {
+ dx_sym = 1;
+ } else {
+ dx_sym = -1;
+ }
+ if (dy == 0) { /* horizontal line */
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+ return;
+ }
+
+ if (dy > 0) {
+ dy_sym = 1;
+ } else {
+ dy_sym = -1;
+ }
+
+ dx = dx_sym*dx;
+ dy = dy_sym*dy;
+
+ dx_x2 = dx*2;
+ dy_x2 = dy*2;
+
+ if (dx >= dy) {
+ di = dy_x2 - dx;
+ while (x0 != x1) {
+
+ pixel(x0, y0, color);
+ x0 += dx_sym;
+ if (di<0) {
+ di += dy_x2;
+ } else {
+ di += dy_x2 - dx_x2;
+ y0 += dy_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ } else {
+ di = dx_x2 - dy;
+ while (y0 != y1) {
+ pixel(x0, y0, color);
+ y0 += dy_sym;
+ if (di < 0) {
+ di += dx_x2;
+ } else {
+ di += dx_x2 - dy_x2;
+ x0 += dx_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ }
+ return;
+}
+
+
+void SPI_TFT_ILI9341::rect(int x0, int y0, int x1, int y1, int color)
+{
+
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+
+ if (x1 > x0) hline(x0,x1,y1,color);
+ else hline(x1,x0,y1,color);
+
+ if (y1 > y0) vline(x1,y0,y1,color);
+ else vline(x1,y1,y0,color);
+
+ return;
+}
+
+
+
+// optimized for speed
+// use DMA
+void SPI_TFT_ILI9341::fillrect(int x0, int y0, int x1, int y1, int color)
+{
+
+ int h = y1 - y0 + 1;
+ int w = x1 - x0 + 1;
+ int pixel = h * w;
+ unsigned int dma_transfer;
+ window(x0,y0,w,h);
+
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+ DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t) &color;
+ DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
+
+ switch(spi_num){ // decide which SPI is to use
+ case (1):
+ DMA_Init(DMA1_Channel3, &DMA_InitStructure); // init the DMA
+ do{
+ if(pixel < 0x10000) {
+ dma_transfer = pixel;
+ pixel = 0;
+ }
+ else {
+ dma_transfer = 0xffff;
+ pixel = pixel - 0xffff;
+ }
+ DMA_SetCurrDataCounter(DMA1_Channel3, dma_transfer);
+ SPI_I2S_DMACmd(SPI1, SPI_I2S_DMAReq_Tx,ENABLE);
+ DMA_Cmd(DMA1_Channel3, ENABLE);
+ while(DMA_GetCurrDataCounter(DMA1_Channel3) != 0); // wait for end of transfer
+ DMA_Cmd(DMA1_Channel3, DISABLE);
+ }while(pixel > 0);
+ break;
+
+ case (2):
+ DMA_Init(DMA1_Channel5, &DMA_InitStructure); // init the DMA
+ do{
+ if(pixel < 0x10000) {
+ dma_transfer = pixel;
+ pixel = 0;
+ }
+ else {
+ dma_transfer = 0xffff;
+ pixel = pixel - 0xffff;
+ }
+ DMA_SetCurrDataCounter(DMA1_Channel5, dma_transfer);
+ SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx,ENABLE);
+ DMA_Cmd(DMA1_Channel5, ENABLE);
+ while(DMA_GetCurrDataCounter(DMA1_Channel5) != 0); // wait for end of transfer
+ DMA_Cmd(DMA1_Channel5, DISABLE);
+ }while(pixel > 0);
+ break;
+
+ case (3):
+ DMA_Init(DMA2_Channel2, &DMA_InitStructure); // init the DMA
+ do{
+ if(pixel < 0x10000) {
+ dma_transfer = pixel;
+ pixel = 0;
+ }
+ else {
+ dma_transfer = 0xffff;
+ pixel = pixel - 0xffff;
+ }
+ DMA_SetCurrDataCounter(DMA2_Channel2, dma_transfer);
+ SPI_I2S_DMACmd(SPI3, SPI_I2S_DMAReq_Tx,ENABLE);
+ DMA_Cmd(DMA2_Channel2, ENABLE);
+ while(DMA_GetCurrDataCounter(DMA2_Channel2) != 0); // wait for end of transfer
+ DMA_Cmd(DMA2_Channel2, DISABLE);
+ }while(pixel > 0);
+ break;
+ }
+ spi_bsy();
+ spi_16(0);
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+void SPI_TFT_ILI9341::locate(int x, int y)
+{
+ char_x = x;
+ char_y = y;
+}
+
+int SPI_TFT_ILI9341::columns()
+{
+ return width() / font[1];
+}
+
+
+int SPI_TFT_ILI9341::rows()
+{
+ return height() / font[2];
+}
+
+
+int SPI_TFT_ILI9341::_putc(int value)
+{
+ if (value == '\n') { // new line
+ char_x = 0;
+ char_y = char_y + font[2];
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ } else {
+ character(char_x, char_y, value);
+ }
+ return value;
+}
+
+
+// speed optimized
+// will use dma
+void SPI_TFT_ILI9341::character(int x, int y, int c)
+{
+ unsigned int hor,vert,offset,bpl,j,i,b;
+ unsigned char* zeichen;
+ unsigned char z,w;
+ #ifdef use_ram
+ unsigned int pixel;
+ unsigned int p;
+ unsigned int dma_count,dma_off;
+ uint16_t *buffer;
+ #endif
+
+ if ((c < 31) || (c > 127)) return; // test char range
+
+ // read font parameter from start of array
+ offset = font[0]; // bytes / char
+ hor = font[1]; // get hor size of font
+ vert = font[2]; // get vert size of font
+ bpl = font[3]; // bytes per line
+
+ if (char_x + hor > width()) {
+ char_x = 0;
+ char_y = char_y + vert;
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ }
+ window(char_x, char_y,hor,vert); // setup char box
+ wr_cmd(0x2C);
+ spi_16(1); // switch to 16 bit Mode
+ #ifdef use_ram
+ pixel = hor * vert; // calculate buffer size
+ buffer = (uint16_t *) malloc (2*pixel); // we need a buffer for the font
+ if(buffer != NULL) { // there is memory space -> use dma
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ p = 0;
+ // construct the font into the buffer
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ buffer[p] = _background;
+ } else {
+ buffer[p] = _foreground;
+ }
+ p++;
+ }
+ }
+ // copy the buffer with DMA SPI to display
+ dma_off = 0; // offset for DMA transfer
+ DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t) (buffer + dma_off);
+ DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
+
+ switch(spi_num){ // decide which SPI is to use
+ case (1):
+ DMA_Init(DMA1_Channel3, &DMA_InitStructure); // init the DMA
+ // start DMA
+ do {
+ if (pixel > 0X10000) { // this is a giant font !
+ dma_count = 0Xffff;
+ pixel = pixel - 0Xffff;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ DMA_SetCurrDataCounter(DMA1_Channel3, dma_count);
+ SPI_I2S_DMACmd(SPI1, SPI_I2S_DMAReq_Tx,ENABLE);
+ DMA_Cmd(DMA1_Channel3, ENABLE);
+ while(DMA_GetCurrDataCounter(DMA1_Channel3) != 0); // wait for end of transfer
+ DMA_Cmd(DMA1_Channel3, DISABLE);
+ }while(pixel > 0);
+ break;
+
+ case (2):
+ DMA_Init(DMA1_Channel5, &DMA_InitStructure); // init the DMA
+ // start DMA
+ do {
+ if (pixel > 0X10000) { // this is a giant font !
+ dma_count = 0Xffff;
+ pixel = pixel - 0Xffff;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ DMA_SetCurrDataCounter(DMA1_Channel5, dma_count);
+ SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx,ENABLE);
+ DMA_Cmd(DMA1_Channel5, ENABLE);
+ while(DMA_GetCurrDataCounter(DMA1_Channel5) != 0); // wait for end of transfer
+ DMA_Cmd(DMA1_Channel5, DISABLE);
+ }while(pixel > 0);
+ break;
+
+ case (3):
+ DMA_Init(DMA2_Channel2, &DMA_InitStructure); // init the DMA
+ // start DMA
+ do {
+ if (pixel > 0X10000) { // this is a giant font !
+ dma_count = 0Xffff;
+ pixel = pixel - 0Xffff;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ DMA_SetCurrDataCounter(DMA2_Channel2, dma_count);
+ SPI_I2S_DMACmd(SPI3, SPI_I2S_DMAReq_Tx,ENABLE);
+ DMA_Cmd(DMA2_Channel2, ENABLE);
+ while(DMA_GetCurrDataCounter(DMA2_Channel2) != 0); // wait for end of transfer
+ DMA_Cmd(DMA2_Channel2, DISABLE);
+ }while(pixel > 0);
+ break;
+
+ }
+ spi_bsy();
+ free ((uint16_t *) buffer);
+ spi_16(0);
+ }
+
+ else{
+ #endif
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ f_write(_background);
+ } else {
+ f_write(_foreground);
+ }
+ }
+ }
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+ #ifdef use_ram
+ }
+ #endif
+ _cs = 1;
+ WindowMax();
+ if ((w + 2) < hor) { // x offset to next char
+ char_x += w + 2;
+ } else char_x += hor;
+}
+
+
+void SPI_TFT_ILI9341::set_font(unsigned char* f)
+{
+ font = f;
+}
+
+
+void SPI_TFT_ILI9341::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
+{
+ unsigned int j;
+ int padd;
+ unsigned short *bitmap_ptr = (unsigned short *)bitmap;
+
+ unsigned int i;
+
+ // the lines are padded to multiple of 4 bytes in a bitmap
+ padd = -1;
+ do {
+ padd ++;
+ } while (2*(w + padd)%4 != 0);
+ window(x, y, w, h);
+ bitmap_ptr += ((h - 1)* (w + padd));
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+ for (j = 0; j < h; j++) { //Lines
+ for (i = 0; i < w; i++) { // one line
+ f_write(*bitmap_ptr); // one line
+ bitmap_ptr++;
+ }
+ bitmap_ptr -= 2*w;
+ bitmap_ptr -= padd;
+ }
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+ WindowMax();
+}
+
+
+// local filesystem is not implemented but you can add a SD card to a different SPI
+
+int SPI_TFT_ILI9341::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
+{
+
+#define OffsetPixelWidth 18
+#define OffsetPixelHeigh 22
+#define OffsetFileSize 34
+#define OffsetPixData 10
+#define OffsetBPP 28
+
+ char filename[50];
+ unsigned char BMP_Header[54];
+ unsigned short BPP_t;
+ unsigned int PixelWidth,PixelHeigh,start_data;
+ unsigned int i,off;
+ int padd,j;
+ unsigned short *line;
+
+ // get the filename
+ i=0;
+ while (*Name_BMP!='\0') {
+ filename[i++]=*Name_BMP++;
+ }
+ filename[i] = 0;
+
+ FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
+ if (!Image) {
+ return(0); // error file not found !
+ }
+
+ fread(&BMP_Header[0],1,54,Image); // get the BMP Header
+
+ if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
+ fclose(Image);
+ return(-1); // error no BMP file
+ }
+
+ BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
+ if (BPP_t != 0x0010) {
+ fclose(Image);
+ return(-2); // error no 16 bit BMP
+ }
+
+ PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
+ PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
+ if (PixelHeigh > height() + y || PixelWidth > width() + x) {
+ fclose(Image);
+ return(-3); // to big
+ }
+
+ start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
+
+ line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
+ if (line == NULL) {
+ return(-4); // error no memory
+ }
+
+ // the bmp lines are padded to multiple of 4 bytes
+ padd = -1;
+ do {
+ padd ++;
+ } while ((PixelWidth * 2 + padd)%4 != 0);
+
+ window(x, y,PixelWidth ,PixelHeigh);
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+ for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
+ off = j * (PixelWidth * 2 + padd) + start_data; // start of line
+ fseek(Image, off ,SEEK_SET);
+ fread(line,1,PixelWidth * 2,Image); // read a line - slow
+ for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
+ f_write(line[i]); // one 16 bit pixel
+ }
+ }
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+ free (line);
+ fclose(Image);
+ WindowMax();
+ return(1);
+}
+
+#endif
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341_NXP.cpp Mon Jun 18 20:01:55 2018 +0000
@@ -0,0 +1,914 @@
+/* mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
+ * Copyright (c) 2014 Peter Drescher - DC2PD
+ * Special version for NXP LPC1768
+ *
+ * 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.
+ */
+
+// 25.06.14 initial version
+
+// only include this file if target is LPC1768
+#if defined TARGET_LPC1768
+
+#include "SPI_TFT_ILI9341.h"
+#include "mbed.h"
+
+#if defined TARGET_LPC1768
+#define use_ram
+#endif
+
+// 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)
+
+#define BPP 16 // Bits per pixel
+
+//extern Serial pc;
+//extern DigitalOut xx; // debug !!
+
+
+SPI_TFT_ILI9341::SPI_TFT_ILI9341(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName dc, const char *name)
+ : GraphicsDisplay(name), SPI(mosi,miso,sclk), _cs(cs), _reset(reset), _dc(dc)
+{
+
+ format(8,3); // 8 bit spi mode 3
+ frequency(10000000); // 10 Mhz SPI clock : result 2 / 4 = 8
+ orientation = 0;
+ char_x = 0;
+ if((int)_spi.spi == SPI_0) { // test which SPI is in use
+ spi_num = 0;
+ }
+ if((int)_spi.spi == SPI_1) {
+ spi_num = 1;
+ }
+ tft_reset();
+}
+
+// we define a fast write to the SPI port
+void inline SPI_TFT_ILI9341::f_write(int data)
+{
+ while(((_spi.spi->SR) & 0x02) == 0);
+ _spi.spi->DR = data;
+}
+
+// wait for SPI not busy
+// we have to wait for the last bit to switch the cs off
+void inline SPI_TFT_ILI9341::spi_bsy(void)
+{
+ while ((_spi.spi->SR & 0x10) == 0x10); // SPI not idle
+}
+
+
+// switch fast between 8 and 16 bit mode
+void SPI_TFT_ILI9341::spi_16(bool s)
+{
+ if(s) _spi.spi->CR0 |= 0x08; // switch to 16 bit Mode
+ else _spi.spi->CR0 &= ~(0x08); // switch to 8 bit Mode
+
+}
+
+
+int SPI_TFT_ILI9341::width()
+{
+ if (orientation == 0 || orientation == 2) return 240;
+ else return 320;
+}
+
+
+int SPI_TFT_ILI9341::height()
+{
+ if (orientation == 0 || orientation == 2) return 320;
+ else return 240;
+}
+
+
+void SPI_TFT_ILI9341::set_orientation(unsigned int o)
+{
+ orientation = o;
+ wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
+ switch (orientation) {
+ case 0:
+ f_write(0x48);
+ break;
+ case 1:
+ f_write(0x28);
+ break;
+ case 2:
+ f_write(0x88);
+ break;
+ case 3:
+ f_write(0xE8);
+ break;
+ }
+ spi_bsy(); // wait for end of transfer
+ _cs = 1;
+ WindowMax();
+}
+
+
+// write command to tft register
+// use fast command
+void SPI_TFT_ILI9341::wr_cmd(unsigned char cmd)
+{
+ _dc = 0;
+ _cs = 0;
+ f_write(cmd);
+ spi_bsy();
+ _dc = 1;
+}
+
+void SPI_TFT_ILI9341::wr_dat(unsigned char dat)
+{
+ f_write(dat);
+ spi_bsy(); // wait for SPI send
+}
+
+// the ILI9341 can read
+char SPI_TFT_ILI9341::rd_byte(unsigned char cmd)
+{
+ // has to change !!
+ return(0);
+}
+
+// read 32 bit
+int SPI_TFT_ILI9341::rd_32(unsigned char cmd)
+{
+ // has to change !!!
+ return(0);
+}
+
+int SPI_TFT_ILI9341::Read_ID(void)
+{
+ int r;
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ r = rd_byte(0x0A);
+ return(r);
+}
+
+
+// Init code based on MI0283QT datasheet
+// this code is called only at start
+// no need to be optimized
+
+void SPI_TFT_ILI9341::tft_reset()
+{
+ _cs = 1; // cs high
+ _dc = 1; // dc high
+ _reset = 0; // display reset
+
+ wait_us(50);
+ _reset = 1; // end hardware reset
+ wait_ms(5);
+
+ wr_cmd(0x01); // SW reset
+ wait_ms(5);
+ wr_cmd(0x28); // display off
+
+ /* Start Initial Sequence ----------------------------------------------------*/
+ wr_cmd(0xCF);
+ f_write(0x00);
+ f_write(0x83);
+ f_write(0x30);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xED);
+ f_write(0x64);
+ f_write(0x03);
+ f_write(0x12);
+ f_write(0x81);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xE8);
+ f_write(0x85);
+ f_write(0x01);
+ f_write(0x79);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xCB);
+ f_write(0x39);
+ f_write(0x2C);
+ f_write(0x00);
+ f_write(0x34);
+ f_write(0x02);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xF7);
+ f_write(0x20);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xEA);
+ f_write(0x00);
+ f_write(0x00);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC0); // POWER_CONTROL_1
+ f_write(0x26);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC1); // POWER_CONTROL_2
+ f_write(0x11);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC5); // VCOM_CONTROL_1
+ f_write(0x35);
+ f_write(0x3E);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xC7); // VCOM_CONTROL_2
+ f_write(0xBE);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
+ f_write(0x48);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x3A); // COLMOD_PIXEL_FORMAT_SET
+ f_write(0x55); // 16 bit pixel
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xB1); // Frame Rate
+ f_write(0x00);
+ f_write(0x1B);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xF2); // Gamma Function Disable
+ f_write(0x08);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x26);
+ f_write(0x01); // gamma set for curve 01/2/04/08
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xE0); // positive gamma correction
+ f_write(0x1F);
+ f_write(0x1A);
+ f_write(0x18);
+ f_write(0x0A);
+ f_write(0x0F);
+ f_write(0x06);
+ f_write(0x45);
+ f_write(0x87);
+ f_write(0x32);
+ f_write(0x0A);
+ f_write(0x07);
+ f_write(0x02);
+ f_write(0x07);
+ f_write(0x05);
+ f_write(0x00);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xE1); // negativ gamma correction
+ f_write(0x00);
+ f_write(0x25);
+ f_write(0x27);
+ f_write(0x05);
+ f_write(0x10);
+ f_write(0x09);
+ f_write(0x3A);
+ f_write(0x78);
+ f_write(0x4D);
+ f_write(0x05);
+ f_write(0x18);
+ f_write(0x0D);
+ f_write(0x38);
+ f_write(0x3A);
+ f_write(0x1F);
+ spi_bsy();
+ _cs = 1;
+
+ WindowMax ();
+
+ //wr_cmd(0x34); // tearing effect off
+ //_cs = 1;
+
+ //wr_cmd(0x35); // tearing effect on
+ //_cs = 1;
+
+ wr_cmd(0xB7); // entry mode
+ f_write(0x07);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0xB6); // display function control
+ f_write(0x0A);
+ f_write(0x82);
+ f_write(0x27);
+ f_write(0x00);
+ spi_bsy();
+ _cs = 1;
+
+ wr_cmd(0x11); // sleep out
+ spi_bsy();
+ _cs = 1;
+
+ wait_ms(100);
+
+ wr_cmd(0x29); // display on
+ spi_bsy();
+ _cs = 1;
+
+ wait_ms(100);
+
+ // setup DMA channel 0
+ LPC_SC->PCONP |= (1UL << 29); // Power up the GPDMA.
+ LPC_GPDMA->DMACConfig = 1; // enable DMA controller
+ LPC_GPDMA->DMACIntTCClear = 0x1; // Reset the Interrupt status
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCLLI = 0;
+}
+
+
+// speed optimized
+// write direct to SPI1 register !
+void SPI_TFT_ILI9341::pixel(int x, int y, int color)
+{
+ wr_cmd(0x2A);
+ spi_16(1); // switch to 8 bit Mode
+ f_write(x);
+ spi_bsy();
+ _cs = 1;
+
+ spi_16(0); // switch to 8 bit Mode
+ wr_cmd(0x2B);
+ spi_16(1);
+ f_write(y);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+ f_write(color);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+}
+
+// optimized
+// write direct to SPI1 register !
+void SPI_TFT_ILI9341::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
+{
+ wr_cmd(0x2A);
+ spi_16(1);
+ f_write(x);
+ f_write(x+w-1);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+
+ wr_cmd(0x2B);
+ spi_16(1);
+ f_write(y) ;
+ f_write(y+h-1);
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+}
+
+
+void SPI_TFT_ILI9341::WindowMax (void)
+{
+ window (0, 0, width(), height());
+}
+
+// optimized
+// use DMA to transfer pixel data to the screen
+void SPI_TFT_ILI9341::cls (void)
+{
+ // we can use the fillrect function
+ fillrect(0,0,width()-1,height()-1,_background);
+}
+
+void SPI_TFT_ILI9341::circle(int x0, int y0, int r, int color)
+{
+
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ pixel(x0-x, y0+y,color);
+ pixel(x0+x, y0+y,color);
+ pixel(x0+x, y0-y,color);
+ pixel(x0-x, y0-y,color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+}
+
+void SPI_TFT_ILI9341::fillcircle(int x0, int y0, int r, int color)
+{
+ int x = -r, y = 0, err = 2-2*r, e2;
+ do {
+ vline(x0-x, y0-y, y0+y, color);
+ vline(x0+x, y0-y, y0+y, color);
+ e2 = err;
+ if (e2 <= y) {
+ err += ++y*2+1;
+ if (-x == y && e2 <= x) e2 = 0;
+ }
+ if (e2 > x) err += ++x*2+1;
+ } while (x <= 0);
+}
+
+
+// optimized for speed
+void SPI_TFT_ILI9341::hline(int x0, int x1, int y, int color)
+{
+ int w,j;
+ w = x1 - x0 + 1;
+ window(x0,y,w,1);
+ _dc = 0;
+ _cs = 0;
+ f_write(0x2C); // send pixel
+ spi_bsy();
+ _dc = 1;
+ spi_16(1);
+
+ for (j=0; j<w; j++) {
+ f_write(color);
+ }
+ spi_bsy();
+ spi_16(0);
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+// optimized for speed
+void SPI_TFT_ILI9341::vline(int x, int y0, int y1, int color)
+{
+ int h,y;
+ h = y1 - y0 + 1;
+ window(x,y0,1,h);
+ _dc = 0;
+ _cs = 0;
+ f_write(0x2C); // send pixel
+ spi_bsy();
+ _dc = 1;
+ spi_16(1);
+ // switch to 16 bit Mode 3
+ for (y=0; y<h; y++) {
+ f_write(color);
+ }
+ spi_bsy();
+ spi_16(0);
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+
+void SPI_TFT_ILI9341::line(int x0, int y0, int x1, int y1, int color)
+{
+ //WindowMax();
+ int dx = 0, dy = 0;
+ int dx_sym = 0, dy_sym = 0;
+ int dx_x2 = 0, dy_x2 = 0;
+ int di = 0;
+
+ dx = x1-x0;
+ dy = y1-y0;
+
+ if (dx == 0) { /* vertical line */
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+ return;
+ }
+
+ if (dx > 0) {
+ dx_sym = 1;
+ } else {
+ dx_sym = -1;
+ }
+ if (dy == 0) { /* horizontal line */
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+ return;
+ }
+
+ if (dy > 0) {
+ dy_sym = 1;
+ } else {
+ dy_sym = -1;
+ }
+
+ dx = dx_sym*dx;
+ dy = dy_sym*dy;
+
+ dx_x2 = dx*2;
+ dy_x2 = dy*2;
+
+ if (dx >= dy) {
+ di = dy_x2 - dx;
+ while (x0 != x1) {
+
+ pixel(x0, y0, color);
+ x0 += dx_sym;
+ if (di<0) {
+ di += dy_x2;
+ } else {
+ di += dy_x2 - dx_x2;
+ y0 += dy_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ } else {
+ di = dx_x2 - dy;
+ while (y0 != y1) {
+ pixel(x0, y0, color);
+ y0 += dy_sym;
+ if (di < 0) {
+ di += dx_x2;
+ } else {
+ di += dx_x2 - dy_x2;
+ x0 += dx_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ }
+ return;
+}
+
+
+void SPI_TFT_ILI9341::rect(int x0, int y0, int x1, int y1, int color)
+{
+
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+
+ if (x1 > x0) hline(x0,x1,y1,color);
+ else hline(x1,x0,y1,color);
+
+ if (y1 > y0) vline(x1,y0,y1,color);
+ else vline(x1,y1,y0,color);
+
+ return;
+}
+
+
+
+// optimized for speed
+// use DMA
+void SPI_TFT_ILI9341::fillrect(int x0, int y0, int x1, int y1, int color)
+{
+ int h = y1 - y0 + 1;
+ int w = x1 - x0 + 1;
+ int pixel = h * w;
+ unsigned int dma_count;
+ window(x0,y0,w,h);
+
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
+
+ switch(spi_num) { // decide which SPI is to use
+ case (0):
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ LPC_SSP0->DMACR = 0x2;
+ break;
+ case (1):
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ LPC_SSP1->DMACR = 0x2;
+ break;
+ }
+
+ // start DMA
+ do {
+ if (pixel > 4095) {
+ dma_count = 4095;
+ pixel = pixel - 4095;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_num ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1; // DMA request
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+ } while (pixel > 0);
+
+ spi_bsy(); // wait for end of transfer
+ spi_16(0);
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+void SPI_TFT_ILI9341::locate(int x, int y)
+{
+ char_x = x;
+ char_y = y;
+}
+
+int SPI_TFT_ILI9341::columns()
+{
+ return width() / font[1];
+}
+
+
+int SPI_TFT_ILI9341::rows()
+{
+ return height() / font[2];
+}
+
+
+int SPI_TFT_ILI9341::_putc(int value)
+{
+ if (value == '\n') { // new line
+ char_x = 0;
+ char_y = char_y + font[2];
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ } else {
+ character(char_x, char_y, value);
+ }
+ return value;
+}
+
+
+// speed optimized
+// will use dma
+void SPI_TFT_ILI9341::character(int x, int y, int c)
+{
+ unsigned int hor,vert,offset,bpl,j,i,b;
+ unsigned char* zeichen;
+ unsigned char z,w;
+#ifdef use_ram
+ unsigned int pixel;
+ unsigned int p;
+ unsigned int dma_count,dma_off;
+ uint16_t *buffer;
+#endif
+
+ if ((c < 31) || (c > 127)) return; // test char range
+
+ // read font parameter from start of array
+ offset = font[0]; // bytes / char
+ hor = font[1]; // get hor size of font
+ vert = font[2]; // get vert size of font
+ bpl = font[3]; // bytes per line
+
+ if (char_x + hor > width()) {
+ char_x = 0;
+ char_y = char_y + vert;
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ }
+ window(char_x, char_y,hor,vert); // setup char box
+ wr_cmd(0x2C);
+ spi_16(1); // switch to 16 bit Mode
+#ifdef use_ram
+ pixel = hor * vert; // calculate buffer size
+ buffer = (uint16_t *) malloc (2*pixel); // we need a buffer for the font
+ if(buffer != NULL) { // there is memory space -> use dma
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ p = 0;
+ // construct the font into the buffer
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ buffer[p] = _background;
+ } else {
+ buffer[p] = _foreground;
+ }
+ p++;
+ }
+ }
+ // copy the buffer with DMA SPI to display
+ dma_off = 0; // offset for DMA transfer
+
+ switch(spi_num) { // decide which SPI is to use
+ case (0):
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ LPC_SSP0->DMACR = 0x2;
+ break;
+ case (1):
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ LPC_SSP1->DMACR = 0x2;
+ break;
+ }
+ // start DMA
+ do {
+ if (pixel > 4095) { // this is a giant font !
+ dma_count = 4095;
+ pixel = pixel - 4095;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + dma_off);
+ LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_num ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1;
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+ dma_off = dma_off + dma_count;
+ } while (pixel > 0);
+
+
+ spi_bsy();
+ free ((uint16_t *) buffer);
+ spi_16(0);
+ }
+
+ else {
+#endif
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ f_write(_background);
+ } else {
+ f_write(_foreground);
+ }
+ }
+ }
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+#ifdef use_ram
+ }
+#endif
+ _cs = 1;
+ WindowMax();
+ if ((w + 2) < hor) { // x offset to next char
+ char_x += w + 2;
+ } else char_x += hor;
+}
+
+
+void SPI_TFT_ILI9341::set_font(unsigned char* f)
+{
+ font = f;
+}
+
+
+void SPI_TFT_ILI9341::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
+{
+ unsigned int j;
+ int padd;
+ unsigned short *bitmap_ptr = (unsigned short *)bitmap;
+
+ unsigned int i;
+
+ // the lines are padded to multiple of 4 bytes in a bitmap
+ padd = -1;
+ do {
+ padd ++;
+ } while (2*(w + padd)%4 != 0);
+ window(x, y, w, h);
+ bitmap_ptr += ((h - 1)* (w + padd));
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+ for (j = 0; j < h; j++) { //Lines
+ for (i = 0; i < w; i++) { // one line
+ f_write(*bitmap_ptr); // one line
+ bitmap_ptr++;
+ }
+ bitmap_ptr -= 2*w;
+ bitmap_ptr -= padd;
+ }
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+ WindowMax();
+}
+
+
+// local filesystem is not implemented but you can add a SD card to a different SPI
+
+int SPI_TFT_ILI9341::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
+{
+
+#define OffsetPixelWidth 18
+#define OffsetPixelHeigh 22
+#define OffsetFileSize 34
+#define OffsetPixData 10
+#define OffsetBPP 28
+
+ char filename[50];
+ unsigned char BMP_Header[54];
+ unsigned short BPP_t;
+ unsigned int PixelWidth,PixelHeigh,start_data;
+ unsigned int i,off;
+ int padd,j;
+ unsigned short *line;
+
+ // get the filename
+ i=0;
+ while (*Name_BMP!='\0') {
+ filename[i++]=*Name_BMP++;
+ }
+ filename[i] = 0;
+
+ FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
+ if (!Image) {
+ return(0); // error file not found !
+ }
+
+ fread(&BMP_Header[0],1,54,Image); // get the BMP Header
+
+ if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
+ fclose(Image);
+ return(-1); // error no BMP file
+ }
+
+ BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
+ if (BPP_t != 0x0010) {
+ fclose(Image);
+ return(-2); // error no 16 bit BMP
+ }
+
+ PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
+ PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
+ if (PixelHeigh > height() + y || PixelWidth > width() + x) {
+ fclose(Image);
+ return(-3); // to big
+ }
+
+ start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
+
+ line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
+ if (line == NULL) {
+ return(-4); // error no memory
+ }
+
+ // the bmp lines are padded to multiple of 4 bytes
+ padd = -1;
+ do {
+ padd ++;
+ } while ((PixelWidth * 2 + padd)%4 != 0);
+
+ window(x, y,PixelWidth ,PixelHeigh);
+ wr_cmd(0x2C); // send pixel
+ spi_16(1);
+ for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
+ off = j * (PixelWidth * 2 + padd) + start_data; // start of line
+ fseek(Image, off ,SEEK_SET);
+ fread(line,1,PixelWidth * 2,Image); // read a line - slow
+ for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
+ f_write(line[i]); // one 16 bit pixel
+ }
+ }
+ spi_bsy();
+ _cs = 1;
+ spi_16(0);
+ free (line);
+ fclose(Image);
+ WindowMax();
+ return(1);
+}
+
+#endif
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TextDisplay.cpp Mon Jun 18 20:01:55 2018 +0000
@@ -0,0 +1,77 @@
+/* mbed TextDisplay Display Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+
+#include "TextDisplay.h"
+
+TextDisplay::TextDisplay(const char *name) : Stream(name){
+ _row = 0;
+ _column = 0;
+ if (name == NULL) {
+ _path = NULL;
+ } else {
+ _path = new char[strlen(name) + 2];
+ sprintf(_path, "/%s", name);
+ }
+}
+
+int TextDisplay::_putc(int value) {
+ if(value == '\n') {
+ _column = 0;
+ _row++;
+ if(_row >= rows()) {
+ _row = 0;
+ }
+ } else {
+ character(_column, _row, value);
+ _column++;
+ if(_column >= columns()) {
+ _column = 0;
+ _row++;
+ if(_row >= rows()) {
+ _row = 0;
+ }
+ }
+ }
+ return value;
+}
+
+// crude cls implementation, should generally be overwritten in derived class
+void TextDisplay::cls() {
+ locate(0, 0);
+ for(int i=0; i<columns()*rows(); i++) {
+ putc(' ');
+ }
+}
+
+void TextDisplay::locate(int column, int row) {
+ _column = column;
+ _row = row;
+}
+
+int TextDisplay::_getc() {
+ return -1;
+}
+
+void TextDisplay::foreground(uint16_t colour) {
+ _foreground = colour;
+}
+
+void TextDisplay::background(uint16_t colour) {
+ _background = colour;
+}
+
+bool TextDisplay::claim (FILE *stream) {
+ if ( _path == NULL) {
+ fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
+ return false;
+ }
+ if (freopen(_path, "w", stream) == NULL) {
+ // Failed, should not happen
+ return false;
+ }
+ // make sure we use line buffering
+ setvbuf(stdout, NULL, _IOLBF, columns());
+ return true;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TextDisplay.h Mon Jun 18 20:01:55 2018 +0000
@@ -0,0 +1,80 @@
+/* mbed TextDisplay Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * A common base class for Text displays
+ * To port a new display, derive from this class and implement
+ * the constructor (setup the display), character (put a character
+ * at a location), rows and columns (number of rows/cols) functions.
+ * Everything else (locate, printf, putc, cls) will come for free
+ *
+ * The model is the display will wrap at the right and bottom, so you can
+ * keep writing and will always get valid characters. The location is
+ * maintained internally to the class to make this easy
+ */
+
+#ifndef MBED_TEXTDISPLAY_H
+#define MBED_TEXTDISPLAY_H
+
+#include "mbed.h"
+
+class TextDisplay : public Stream {
+public:
+
+ // functions needing implementation in derived implementation class
+ /** Create a TextDisplay interface
+ *
+ * @param name The name used in the path to access the strean through the filesystem
+ */
+ TextDisplay(const char *name = NULL);
+
+ /** output a character at the given position
+ *
+ * @param column column where charater must be written
+ * @param row where character must be written
+ * @param c the character to be written to the TextDisplay
+ */
+ virtual void character(int column, int row, int c) = 0;
+
+ /** return number if rows on TextDisplay
+ * @result number of rows
+ */
+ virtual int rows() = 0;
+
+ /** return number if columns on TextDisplay
+ * @result number of rows
+ */
+ virtual int columns() = 0;
+
+ // functions that come for free, but can be overwritten
+
+ /** redirect output from a stream (stoud, sterr) to display
+ * @param stream stream that shall be redirected to the TextDisplay
+ */
+ virtual bool claim (FILE *stream);
+
+ /** clear screen
+ */
+ virtual void cls();
+ virtual void locate(int column, int row);
+ virtual void foreground(uint16_t colour);
+ virtual void background(uint16_t colour);
+ // putc (from Stream)
+ // printf (from Stream)
+
+protected:
+
+ virtual int _putc(int value);
+ virtual int _getc();
+
+ // character location
+ uint16_t _column;
+ uint16_t _row;
+
+ // colours
+ uint16_t _foreground;
+ uint16_t _background;
+ char *_path;
+};
+
+#endif