Erik -
Simple clock program for LPC1768 Mini-DK
Diff: Mini_DK/SPI_TFT/SPI_TFT.cpp
- Revision:
- 0:ab0aec01b38e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Mini_DK/SPI_TFT/SPI_TFT.cpp Sun Dec 30 21:31:56 2012 +0000
@@ -0,0 +1,821 @@
+/* mbed library for 240*320 pixel TFT with ILI9320 LCD Controller
+ * Rewrite from Peter Drescher code - http://mbed.org/cookbook/SPI-driven-QVGA-TFT
+ *
+ * TODO : BMP routine
+ */
+
+
+
+#include "SPI_TFT.h"
+#include "mbed.h"
+
+
+#define BPP 16 // Bits per pixel
+
+
+SPI_TFT::SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, const char *name)
+ : GraphicsDisplay(name), _spi(mosi, miso, sclk), _cs(cs), _reset(reset)
+{
+ char_x = 0;
+ tft_reset();
+ set_orientation(0);
+}
+
+int SPI_TFT::width()
+{
+ if (orientation == 0 || orientation == 2) return 240;
+ else return 320;
+}
+
+int SPI_TFT::height()
+{
+ if (orientation == 0 || orientation == 2) return 320;
+ else return 240;
+}
+
+//
+void SPI_TFT::set_orientation(unsigned int o)
+{
+ orientation = o;
+ WindowMax();
+}
+
+// ILI9320
+// Orientation is only set before a window command (registers 0x50..0x53)
+// reg 03h (Entry Mode) : BGR = 1 - ORG = 1 - ID0, ID1 and AM are set according to the orientation variable.
+// IMPORTANT : when ORG = 1, the GRAM writing direction follows the orientation (ID0, ID1, AM bits)
+// AND we need to use the window command (reg 50h..53h) to write to an area on the display
+// because we cannot change reg 20h and 21h to set the GRAM address (they both remain at 00h).
+// This means that the pixel routine does not work when ORG = 1.
+// Routines relying on the pixel routine first need to set reg 03h = 0x1030
+// (cls, circle and line do so) AND need to write the data according to the orientation variable.
+
+void SPI_TFT::mod_orientation(void)
+{
+ switch (orientation)
+ {
+ case 0:
+ wr_reg(0x03, 0x10b0); // ID1 = 1, ID0 = 1, AM = 0 - Portrait
+ break;
+ case 1:
+ wr_reg(0x03, 0x10a8); // ID1 = 1, ID0 = 0, AM = 0 - Landscape
+ break;
+ case 2:
+ wr_reg(0x03, 0x1080); // ID1 = 0, ID0 = 0, AM = 1 - Portrait upside down
+ break;
+ case 3:
+ wr_reg(0x03, 0x1098); // ID1 = 0, ID0 = 1, AM = 1 - Landscape upside down
+ break;
+ }
+}
+
+void SPI_TFT::wr_cmd(unsigned char cmd)
+{
+ _cs = 0;
+ _spi.write(0x70);
+ _spi.write(0x00);
+ _spi.write(cmd);
+ _cs = 1;
+}
+
+void SPI_TFT::wr_dat(unsigned short dat)
+{
+ unsigned char u,l;
+ u = (dat >> 0x08);
+ l = (dat & 0xff);
+ _cs = 0;
+ _spi.write(0x72);
+ _spi.write(u);
+ _spi.write(l);
+ _cs = 1;
+}
+
+void SPI_TFT::wr_dat_start(void)
+{
+ _spi.write(0x72);
+}
+
+void SPI_TFT::wr_dat_only(unsigned short dat)
+{
+ unsigned char u,l;
+ u = (dat >> 0x08);
+ l = (dat & 0xff);
+ _spi.write(u);
+ _spi.write(l);
+}
+
+unsigned short SPI_TFT::rd_dat(void) // SPI frequency needs to be lowered on read
+{
+ unsigned short val = 0;
+ _cs = 0;
+ _spi.frequency(SPI_F_LO);
+ _spi.write(0x73);
+ _spi.write(0x00);
+ val = _spi.write(0); // Dummy read
+ val = _spi.write(0); // Read D8..D15
+ val <<= 8;
+ val |= _spi.write(0); // Read D0..D7
+ _cs = 1;
+ _spi.frequency(SPI_F_HI);
+ return (val);
+}
+
+void SPI_TFT::wr_reg(unsigned char reg, unsigned short val)
+{
+ wr_cmd(reg);
+ wr_dat(val);
+}
+
+unsigned short SPI_TFT::rd_reg(unsigned char reg)
+{
+ wr_cmd(reg);
+ return(rd_dat());
+}
+
+unsigned short SPI_TFT::Read_ID(void) // IMPORTANT : SPI frequency needs to be lowered when reading
+{
+ unsigned short val = 0;
+ _cs = 0;
+ _spi.write(0x70);
+ _spi.write(0x00);
+ _spi.write(0X00);
+ _cs = 1;
+ _spi.frequency(SPI_F_LO);
+ _cs = 0;
+ _spi.write(0x73);
+ val = _spi.write(0x00); // Dummy read
+ val = _spi.write(0x00); // Read D8..D15
+ val <<= 8;
+ val |= _spi.write(0x00); // Read D0..D7
+ _cs = 1;
+ _spi.frequency(SPI_F_HI);
+ return (val);
+}
+
+void SPI_TFT::SetCursor( unsigned short Xpos, unsigned short Ypos )
+{
+ wr_reg(0x20, Xpos );
+ wr_reg(0x21, Ypos );
+}
+
+void SPI_TFT::tft_reset()
+{
+ _spi.format(8,3); // 8 bit spi mode 3
+ _spi.frequency(SPI_F_HI); // 48 Mhz SPI clock
+
+ wr_reg(0x00,0x0000);
+ wr_reg(0x01,0x0100); // Driver Output Control
+ wr_reg(0x02,0x0700); // LCD Driver Waveform Control
+ wr_reg(0x03,0x1030); // Set the scan mode
+ wr_reg(0x04,0x0000); // Scaling Control
+ wr_reg(0x08,0x0202); // Display Control 2
+ wr_reg(0x09,0x0000); // Display Control 3
+ wr_reg(0x0a,0x0000); // Frame Cycle Contal
+ wr_reg(0x0c,(1<<0)); // Extern Display Interface Control 1
+ wr_reg(0x0d,0x0000); // Frame Maker Position
+ wr_reg(0x0f,0x0000); // Extern Display Interface Control 2
+
+ wait_ms(50);
+
+ wr_reg(0x07,0x0101); // Display Control
+
+ wait_ms(50);
+
+ wr_reg(0x10,(1<<12)|(0<<8)|(1<<7)|(1<<6)|(0<<4)); // Power Control 1
+ wr_reg(0x11,0x0007); // Power Control 2
+ wr_reg(0x12,(1<<8)|(1<<4)|(0<<0)); // Power Control 3
+ wr_reg(0x13,0x0b00); // Power Control 4
+ wr_reg(0x29,0x0000); // Power Control 7
+ wr_reg(0x2b,(1<<14)|(1<<4));
+
+ wr_reg(0x50,0); // Set X Start
+ wr_reg(0x51,239); // Set X End
+ wr_reg(0x52,0); // Set Y Start
+ wr_reg(0x53,319); // Set Y End
+
+ wait_ms(50);
+
+ wr_reg(0x60,0x2700); // Driver Output Control
+ wr_reg(0x61,0x0001); // Driver Output Control
+ wr_reg(0x6a,0x0000); // Vertical Srcoll Control
+
+ wr_reg(0x80,0x0000); // Display Position Partial Display 1
+ wr_reg(0x81,0x0000); // RAM Address Start Partial Display 1
+ wr_reg(0x82,0x0000); // RAM Address End-Partial Display 1
+ wr_reg(0x83,0x0000); // Displsy Position Partial Display 2
+ wr_reg(0x84,0x0000); // RAM Address Start Partial Display 2
+ wr_reg(0x85,0x0000); // RAM Address End Partial Display 2
+
+ wr_reg(0x90,(0<<7)|(16<<0)); // Frame Cycle Control
+ wr_reg(0x92,0x0000); // Panel Interface Control 2
+ wr_reg(0x93,0x0001); // Panel Interface Control 3
+ wr_reg(0x95,0x0110); // Frame Cycle Control
+ wr_reg(0x97,(0<<8));
+ wr_reg(0x98,0x0000); // Frame Cycle Control
+ wr_reg(0x07,0x0133);
+
+ wait_ms(100);
+ WindowMax();
+}
+
+
+void SPI_TFT::pixel(int x, int y, int color)
+{
+ switch (orientation)
+ {
+ case 0:
+ wr_reg(0x20, x);
+ wr_reg(0x21, y);
+ break;
+ case 1:
+ wr_reg(0x20, 239-y);
+ wr_reg(0x21, x);
+ break;
+ case 2:
+ wr_reg(0x20, 239-x);
+ wr_reg(0x21, 319-y);
+ break;
+ case 3:
+ wr_reg(0x20, y);
+ wr_reg(0x21, 319-x);
+ break;
+ }
+ wr_cmd(0x22);
+ wr_dat(color);
+}
+
+
+void SPI_TFT::window(int x, int y, int w, int h)
+{
+ unsigned int xw1, yh1;
+ xw1 = x + w - 1;
+ yh1 = y + h - 1;
+ wr_reg(0x20, x);
+ wr_reg(0x21, y);
+ switch (orientation)
+ {
+ case 0:
+ wr_reg(0x50, x);
+ wr_reg(0x51, xw1);
+ wr_reg(0x52, y);
+ wr_reg(0x53, yh1);
+ break;
+ case 1:
+ wr_reg(0x50, 239 - yh1);
+ wr_reg(0x51, 239 - y);
+ wr_reg(0x52, x);
+ wr_reg(0x53, xw1);
+ break;
+ case 2:
+ wr_reg(0x50, 239 - xw1);
+ wr_reg(0x51, 239 - x);
+ wr_reg(0x52, 319 - yh1);
+ wr_reg(0x53, 319 - y);
+ break;
+ case 3:
+ wr_reg(0x50, y);
+ wr_reg(0x51, yh1);
+ wr_reg(0x52, 319 - xw1);
+ wr_reg(0x53, 319 - x);
+ break;
+ }
+}
+
+
+void SPI_TFT::WindowMax(void)
+{
+ window(0, 0, width(), height());
+}
+
+
+void SPI_TFT::cls (void)
+{
+ unsigned long int index=0;
+ wr_reg(0x03, 0x1030);
+ WindowMax();
+ SetCursor(0,0);
+ wr_cmd(0x22);
+ _cs = 0;
+ wr_dat_start();
+
+ _spi.format(16,3);
+ unsigned short dat = _background;
+
+ for( index = 0; index<width()*height(); index++ )
+ {
+ _spi.write(dat);
+ }
+
+ _spi.format(8,3);
+
+ /*for( index = 0; index < width() * height(); index++ )
+ {
+ wr_dat_only(color);
+ }*/
+ _cs = 1;
+}
+
+void SPI_TFT::hline(int x0, int x1, int y, int color)
+{
+ unsigned int index=0;
+ int w;
+ w = x1 - x0 + 1;
+ mod_orientation();
+ window(x0,y,w,1);
+ wr_cmd(0x22);
+ _cs = 0;
+ wr_dat_start();
+ for( index = 0; index < (x1 - x0); index++ )
+ {
+ wr_dat_only(color);
+ }
+ _cs = 1;
+ return;
+}
+
+void SPI_TFT::vline(int x, int y0, int y1, int color)
+{
+ unsigned int index=0;
+ int h;
+ h = y1 - y0 + 1;
+ mod_orientation();
+ window(x,y0,1,h);
+ wr_cmd(0x22);
+ _cs = 0;
+ wr_dat_start();
+ for( index = 0; index < (y1 - y0); index++ )
+ {
+ wr_dat_only(color);
+ }
+ _cs = 1;
+ return;
+}
+
+void SPI_TFT::line(int x0, int y0, int x1, int y1, int color)
+{
+ wr_reg(0x03, 0x1030);
+ 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::rect(int x0, int y0, int w, int h, int color)
+{
+ hline(x0,x0+w,y0,color);
+ vline(x0,y0,y0+h,color);
+ hline(x0,x0+w,y0+h,color);
+ vline(x0+w,y0,y0+h,color);
+
+ return;
+}
+
+void SPI_TFT::fillrect(int x0, int y0, int w, int h, int color)
+{
+ unsigned long int index=0;
+ if (w < 0)
+ {
+ x0 = x0 + w;
+ w = -w;
+ }
+ if (h < 0)
+ {
+ y0 = y0 + h;
+ h = -h;
+ }
+ mod_orientation();
+ window(x0,y0,w,h);
+ wr_cmd(0x22);
+ _cs = 0;
+ wr_dat_start();
+
+ for( index = 0; index < h * w; index++ )
+ {
+ wr_dat_only(color);
+ }
+ _cs = 1;
+ return;
+}
+
+void SPI_TFT::draw_ellipse(int xc, int yc, int a, int b, unsigned int color)
+{ /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
+ wr_reg(0x03, 0x1030);
+ WindowMax();
+ int x = 0, y = b;
+ long a2 = (long)a*a, b2 = (long)b*b;
+ long crit1 = -(a2/4 + a%2 + b2);
+ long crit2 = -(b2/4 + b%2 + a2);
+ long crit3 = -(b2/4 + b%2);
+ long t = -a2*y; /* e(x+1/2,y-1/2) - (a^2+b^2)/4 */
+ long dxt = 2*b2*x, dyt = -2*a2*y;
+ long d2xt = 2*b2, d2yt = 2*a2;
+
+ while (y>=0 && x<=a)
+ {
+ pixel(xc+x, yc+y, color);
+ if (x!=0 || y!=0)
+ pixel(xc-x, yc-y, color);
+ if (x!=0 && y!=0)
+ {
+ pixel(xc+x, yc-y, color);
+ pixel(xc-x, yc+y, color);
+ }
+ if (t + b2*x <= crit1 || /* e(x+1,y-1/2) <= 0 */
+ t + a2*y <= crit3) /* e(x+1/2,y) <= 0 */
+ incx();
+ else if (t - a2*y > crit2) /* e(x+1/2,y-1) > 0 */
+ incy();
+ else
+ {
+ incx();
+ incy();
+ }
+ }
+}
+
+void SPI_TFT::fill_ellipse(int xc, int yc, int a, int b, unsigned int color)
+{ /* e(x,y) = b^2*x^2 + a^2*y^2 - a^2*b^2 */
+ int x = 0, y = b;
+ int rx = x, ry = y;
+ unsigned int width = 1;
+ unsigned int height = 1;
+ long a2 = (long)a*a, b2 = (long)b*b;
+ long crit1 = -(a2/4 + a%2 + b2);
+ long crit2 = -(b2/4 + b%2 + a2);
+ long crit3 = -(b2/4 + b%2);
+ long t = -a2*y; /* e(x+1/2,y-1/2) - (a^2+b^2)/4 */
+ long dxt = 2*b2*x, dyt = -2*a2*y;
+ long d2xt = 2*b2, d2yt = 2*a2;
+
+ if (b == 0)
+ {
+ fillrect(xc-a, yc, 2*a+1, 1, color);
+ return;
+ }
+
+ while (y>=0 && x<=a)
+ {
+ if (t + b2*x <= crit1 || /* e(x+1,y-1/2) <= 0 */
+ t + a2*y <= crit3) /* e(x+1/2,y) <= 0 */
+ {
+ if (height == 1)
+ ; /* draw nothing */
+ else if (ry*2+1 > (height-1)*2)
+ {
+ fillrect(xc-rx, yc-ry, width, height-1, color);
+ fillrect(xc-rx, yc+ry+1, width, 1-height, color);
+ ry -= height-1;
+ height = 1;
+ }
+ else
+ {
+ fillrect(xc-rx, yc-ry, width, ry*2+1, color);
+ ry -= ry;
+ height = 1;
+ }
+ incx();
+ rx++;
+ width += 2;
+ }
+ else if (t - a2*y > crit2) /* e(x+1/2,y-1) > 0 */
+ {
+ incy();
+ height++;
+ }
+ else
+ {
+ if (ry*2+1 > height*2)
+ {
+ fillrect(xc-rx, yc-ry, width, height, color);
+ fillrect(xc-rx, yc+ry+1, width, -height, color);
+ }
+ else
+ {
+ fillrect(xc-rx, yc-ry, width, ry*2+1, color);
+ }
+ incx();
+ incy();
+ rx++;
+ width += 2;
+ ry -= height;
+ height = 1;
+ }
+ }
+
+ if (ry > height)
+ {
+ fillrect(xc-rx, yc-ry, width, height, color);
+ fillrect(xc-rx, yc+ry+1, width, -height, color);
+ }
+ else
+ {
+ fillrect(xc-rx, yc-ry, width, ry*2+1, color);
+ }
+}
+
+
+void SPI_TFT::locate(int x, int y)
+{
+ char_x = x;
+ char_y = y;
+}
+
+int SPI_TFT::columns()
+{
+ return width() / font[1];
+}
+
+int SPI_TFT::rows()
+{
+ return height() / font[2];
+}
+
+int SPI_TFT::_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::character(int x, int y, int c)
+{
+ unsigned int hor,vert,offset,bpl,j,i,b;
+ unsigned char* bitmap_char;
+ 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;
+ }
+ }
+ mod_orientation();
+
+ bitmap_char = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = bitmap_char[0]; // width of actual char
+ window(char_x, char_y,w,vert); // char box
+ wr_cmd(0x22);
+ _cs = 0;
+ wr_dat_start();
+
+
+ for (j=0; j<vert; j++) // vert line
+ {
+ for (i=0; i<w; i++) // horz line
+ {
+ z = bitmap_char[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00)
+ {
+ wr_dat_only(_background);
+ }
+ else
+ {
+ wr_dat_only(_foreground);
+ }
+ }
+ }
+ _cs = 1;
+ if ((w + 2) < hor) // x offset to next char
+ {
+ char_x += w + 2;
+ }
+ else char_x += hor;
+}
+
+
+void SPI_TFT::set_font(unsigned char* f)
+{
+ font = f;
+}
+
+
+void SPI_TFT::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
+{
+ unsigned int i,j;
+ unsigned short *bitmap_ptr = (unsigned short *)bitmap;
+ mod_orientation();
+ window(x, y, w, h);
+ wr_cmd(0x22);
+ _cs = 0;
+ wr_dat_start();
+ _spi.format(16,3);
+ bitmap_ptr += ((h - 1)*w);
+ for (j = 0; j < h; j++) //Lines
+ {
+ for (i = 0; i < w; i++) // copy pixel data to TFT
+ {
+ _spi.write(*bitmap_ptr); // one line
+ bitmap_ptr++;
+ }
+ bitmap_ptr -= 2*w;
+ }
+ _spi.format(8,3);
+ _cs = 1;
+}
+
+int SPI_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
+{
+/* // Current code unusable : Rewrite without DMA is needed
+#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
+ LocalFileSystem local("local");
+ sprintf(&filename[0],"/local/");
+ i=7;
+ while (*Name_BMP!='\0') {
+ filename[i++]=*Name_BMP++;
+ }
+
+ fprintf(stderr, "filename : %s \n\r",filename);
+
+ 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);
+
+
+//fseek(Image, 70 ,SEEK_SET);
+ window(x, y,PixelWidth ,PixelHeigh);
+ wr_cmd(0x22);
+ _cs = 0;
+
+ if (spi_port == 0) { // TFT on SSP0
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+// LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+ // Enable SSP0 for DMA.
+ LPC_SSP0->DMACR = 0x2;
+
+ } else {
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+// LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ // Enable SSP1 for DMA.
+ LPC_SSP1->DMACR = 0x2;
+ }
+ 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 !
+
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)line;
+ LPC_GPDMACH0->DMACCControl = PixelWidth | (0UL << 18) | (0UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1;
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+
+ }
+
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ } else {
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+ _cs = 1;
+ free (line);
+ fclose(Image);
+ WindowMax();
+*/
+ return(1);
+}