Emina Tahirović
.
Diff: SPI_TFT_ILI9341.cpp
- Revision:
- 0:1b3481785d59
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341.cpp Sun Jun 16 20:26:22 2019 +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