Forked from Peter Drescher lib, using always 16bit spi, init values for chinese red pcb, added read cmds and some mess here and there
Fork of SPI_TFT_ILI9341 by
SPI_TFT_ILI9341.cpp
- Committer:
- Geremia
- Date:
- 2014-04-23
- Revision:
- 8:a9d849c3dad0
- Parent:
- 7:4c30bea883bc
- Child:
- 9:1d3d41128693
File content as of revision 8:a9d849c3dad0:
/* 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 #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) : _spi(mosi, miso, sclk), _cs(cs), _reset(reset), _dc(dc), GraphicsDisplay(name) { clk = sclk; orientation = 0; char_x = 0; _reset = 0; 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: wr_8(0x48); break; case 1: wr_8(0x28); break; case 2: wr_8(0x88); break; case 3: wr_8(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 // _cs = 1; } void SPI_TFT_ILI9341::wr_8(unsigned char value) { _dc = 1; // _cs = 0; _spi.write(value); // mbed lib // _cs = 1; } void SPI_TFT_ILI9341::wr_16(unsigned int value) { _dc = 1; // _cs = 0; // #if defined TARGET_KL25Z // 8 Bit SPI _spi.write(value >> 8); _spi.write(value & 0xff); // #else // _spi.format(16,0); // switch to 16 bit Mode 3, but it takes some time // _spi.write(value); // mbed lib // _spi.format(8,0); // #endif // _cs = 1; } // the ILI9341 can read char SPI_TFT_ILI9341::wr_cmd_rd8(unsigned char cmd) { char r; _dc = 0; // _cs = 0; _spi.write(cmd); // mbed lib _dc = 1; // fixed r = _spi.write(0); // _cs = 1; return(r); } // read 24 bit int SPI_TFT_ILI9341::wr_cmd_rd24(unsigned char cmd) { int d = 0; char r; _dc = 0; // _cs = 0; #if defined TARGET_NXP d = cmd; d = d << 1; _spi.format(9,0); // we have to add a dummy clock cycle _spi.write(d); _spi.format(8,0); #else _spi.write(cmd); #endif _dc = 1; r = _spi.write(0); d = r; r = _spi.write(0); d = (d << 8) | r; r = _spi.write(0); d = (d << 8) | r; #if !defined TARGET_NXP // workaraound for not 9bit, get 1 bit more r = _spi.write(0); d = (d << 1) | (r>>7); // we clocked 7 more bit so ILI waiting for 8th, resetting spi _cs = 1; _cs = 0; #endif // _cs = 0; return(d); } // read 32 bit int SPI_TFT_ILI9341::wr_cmd_rd32(unsigned char cmd) { int d; char r; _dc = 0; // _cs = 0; #if defined TARGET_NXP d = cmd; d = d << 1; _spi.format(9,0); // we have to add a dummy clock cycle _spi.write(d); _spi.format(8,0); #else _spi.write(cmd); #endif _dc = 1; r = _spi.write(0); d = r; r = _spi.write(0); d = (d << 8) | r; r = _spi.write(0); d = (d << 8) | r; r = _spi.write(0); d = (d << 8) | r; #if !defined TARGET_NXP // workaraound for not 9bit, get 1 bit more r = _spi.write(0); d = (d << 1) | (r>>7); // we clocked 7 more bit so ILI waiting for 8th, resetting spi _cs = 1; _cs = 0; #endif // _cs = 1; return(d); } char SPI_TFT_ILI9341::Read_Register(char Addr, char xParameter) { char data=0; wr_cmd(0xd9); /* ext command */ wr_8(0x10+xParameter); /* 0x11 is the first Parameter */ data = wr_cmd_rd8(Addr); return data; } int SPI_TFT_ILI9341::Read_ID4ext(void){ char i; char r; int d=0; for(i=0;i<3;i++) { r=Read_Register(0xd3,i+1); // D3 for ID4 d = (d << 8) | r; } return(d); } // broken on 9341 int SPI_TFT_ILI9341::Read_ID123(void){ int r; r = wr_cmd_rd24(0x04); return(r); } // broken on 9341 int SPI_TFT_ILI9341::Read_ID4(void){ int r; r = wr_cmd_rd24(0xD3); return(r); } int SPI_TFT_ILI9341::Read_STS(void){ int r; r = wr_cmd_rd32(0x09); return(r); } // HW reset void SPI_TFT_ILI9341::tft_reset() { _spi.format(8,0); // 8 bit spi mode 3 _spi.frequency(10000000); // 10 Mhz SPI clock _cs = 1; // cs high _dc = 1; // dc high _reset = 0; // display reset wait_ms(50); _reset = 1; // end hardware reset wait_ms(150); // or 5?!? _cs = 0; // wr_cmd(0x01); // SW reset // wait_ms(150); // or 5?!? tft_init_redPCBtm22(); } // init for chinese 2.2" red PCB 1580005661C void SPI_TFT_ILI9341::tft_init_redPCBtm22() { /* Start Initial Sequence ----------------------------------------------------*/ wr_cmd(0xCB); // POWER_ON_SEQ_CONTROL wr_8(0x39); wr_8(0x2C); wr_8(0x00); wr_8(0x34); wr_8(0x02); wr_cmd(0xCF); // POWER_CONTROL_B wr_8(0x00); wr_8(0xC1); // Applic Notes 81, was 83, C1 enables PCEQ: PC and EQ operation for power saving wr_8(0x30); wr_cmd(0xE8); // DRIVER_TIMING_CONTROL_A wr_8(0x85); wr_8(0x00); // AN 10, was 01 wr_8(0x78); // AN 7A, was 79 wr_cmd(0xEA); // DRIVER_TIMING_CONTROL_B wr_8(0x00); wr_8(0x00); wr_cmd(0xED); wr_8(0x64); wr_8(0x03); wr_8(0x12); wr_8(0x81); wr_cmd(0xF7); // PUMP_RATIO_CONTROL wr_8(0x20); wr_cmd(0xC0); // POWER_CONTROL_1 wr_8(0x23); // AN 21, was 26 wr_cmd(0xC1); // POWER_CONTROL_2 wr_8(0x10); // AN 11, was 11 wr_cmd(0xC5); // VCOM_CONTROL_1 wr_8(0x3E); // AN 3F, was 35 wr_8(0x28); // AN 3C, was 3E wr_cmd(0xC7); // VCOM_CONTROL_2 wr_8(0x86); // AN A7, was BE wr_cmd(0x36); // MEMORY_ACCESS_CONTROL wr_8(0x48); wr_cmd(0x3A); // COLMOD_PIXEL_FORMAT_SET, not present in AN wr_8(0x55); // 16 bit pixel wr_cmd(0xB1); // Frame Rate wr_8(0x00); wr_8(0x18); // AN 1B, was 1B 1B=70hz wr_cmd(0xB6); // display function control, INTERESTING wr_8(0x08); // AN 0A, was 0A wr_8(0x82); // AN A2 wr_8(0x27); // AN not present // wr_8(0x00); // was present wr_cmd(0xF2); // Gamma Function Disable wr_8(0x00); // AN 00, was 08 wr_cmd(0x26); wr_8(0x01); // gamma set for curve 01/2/04/08 wr_cmd(0xE0); // positive gamma correction wr_8(0x0F); wr_8(0x31); wr_8(0x2B); wr_8(0x0C); wr_8(0x0E); wr_8(0x08); wr_8(0x4E); wr_8(0xF1); wr_8(0x37); wr_8(0x07); wr_8(0x10); wr_8(0x03); wr_8(0x0E); wr_8(0x09); wr_8(0x00); wr_cmd(0xE1); // negativ gamma correction wr_8(0x00); wr_8(0x0E); wr_8(0x14); wr_8(0x03); wr_8(0x11); wr_8(0x07); wr_8(0x31); wr_8(0xC1); wr_8(0x48); wr_8(0x08); wr_8(0x0F); wr_8(0x0C); wr_8(0x31); wr_8(0x36); wr_8(0x0F); //wr_cmd(0x34); // tearing effect off //wr_cmd(0x35); // tearing effect on // wr_cmd(0xB7); // ENTRY_MODE_SET // wr_8(0x07); wr_cmd(0x11); // sleep out wait_ms(150); wr_cmd(0x29); // display on wait_ms(150); WindowMax (); } void SPI_TFT_ILI9341::pixel(int x, int y, int color) { wr_cmd(0x2A); wr_16(x); // set only start column, end colum have been set by windows funct wr_cmd(0x2B); // set only start page wr_16(y); wr_cmd(0x2C); // send pixel wr_16(color); } void SPI_TFT_ILI9341::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h) { wr_cmd(0x2A); wr_16(x); wr_16(x+w-1); wr_cmd(0x2B); wr_16(y); wr_16(y+h-1); } void SPI_TFT_ILI9341::WindowMax (void) { window (0, 0, width(), height()); } void SPI_TFT_ILI9341::cls (void) { int pixels = ( width() * height()); WindowMax(); wr_cmd(0x2C); // send pixel unsigned int i; for (i = 0; i < pixels; i++) { wr_16(_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 for (int j=0; j<w; j++) { wr_16(color); } 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 for (int y=0; y<h; y++) { wr_16(color); } 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 tmp; if(x0 > x1) { tmp=x0; // swap them x0=x1; x1=tmp; } if(y0 > y1) { tmp=y0; // swap them y0=y1; y1=tmp; } int h = y1 - y0 + 1; int w = x1 - x0 + 1; int pixels = h * w; window(x0,y0,w,h); wr_cmd(0x2C); // send pixel for (int p=0; p<pixels; p++) { wr_16(color); } 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 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) { wr_16(_background); } else { wr_16(_foreground); } } } 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 for (j = 0; j < h; j++) { //Lines for (i = 0; i < w; i++) { // one line wr_16(*bitmap_ptr); bitmap_ptr++; } bitmap_ptr -= 2*w; bitmap_ptr -= padd; } 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 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 wr_16(line[i]); // one 16 bit pixel } } free (line); fclose(Image); WindowMax(); return(1); }