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TFT Touch base
Fork of TFT_test_NUCLEO-F411RE by
Revision 1:0a7005226e61, committed 2018-07-30
- Comitter:
- richnash
- Date:
- Mon Jul 30 14:18:06 2018 +0000
- Parent:
- 0:cd5e3d371b54
- Commit message:
- base version of TFT demo for F767ZI
Changed in this revision
diff -r cd5e3d371b54 -r 0a7005226e61 SPI_STMPE610.lib --- a/SPI_STMPE610.lib Thu Nov 19 13:34:57 2015 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/Rhyme/code/SPI_STMPE610/#21f92cef6dca
diff -r cd5e3d371b54 -r 0a7005226e61 TFTv2.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TFTv2.lib Mon Jul 30 14:18:06 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/richnash/code/TFTv2/#2b9b3c325d48
diff -r cd5e3d371b54 -r 0a7005226e61 UniGraphic.lib --- a/UniGraphic.lib Thu Nov 19 13:34:57 2015 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/teams/GraphicsDisplay/code/UniGraphic/#1bdfb971b2c1
diff -r cd5e3d371b54 -r 0a7005226e61 main.cpp --- a/main.cpp Thu Nov 19 13:34:57 2015 +0000 +++ b/main.cpp Mon Jul 30 14:18:06 2018 +0000 @@ -1,3 +1,6 @@ +/* Adapted from other examples to work on a F767ZI + */ + /* mbed main.cpp to test adafruit 2.8" TFT LCD shiled w Touchscreen * Copyright (c) 2014, 2015 Motoo Tanaka @ Design Methodology Lab * @@ -28,50 +31,244 @@ #include "Arial28x28.h" #include "Arial43x48_numb.h" -#define PIN_MOSI PA_7 -#define PIN_MISO PA_6 -#define PIN_SCLK PA_5 -#define PIN_CS_TFT PB_6 -#define PIN_DC_TFT PC_7 -#define PIN_BL_TFT PA_8 -#define PIN_CS_SD PB_5 -#define PIN_CS_TSC PA_9 -#define PIN_TSC_INTR PA_8 #define PIN_RESET_TFT PC_13 /* place holder */ -#define DEVICE_NAME "F411RE" + +// ------------- FROM WORKING VERSION + +#define PIN_MOSI D11 +#define PIN_MISO D12 +#define PIN_SCLK D13 +#define PIN_CS_TFT D5 +#define PIN_DC_TFT D6 +#define PIN_BL_TFT D7 +#define PIN_CS_SD D4 + +// ===================================== + +#define PIN_XP A2 +#define PIN_XM A0 +#define PIN_YP A3 +#define PIN_YM A1 + + +struct point { + int x; + int y; +}; -#ifndef TARGET_NECLEO_F411RE -#define TARGET_NECLEO_F411RE -#endif +void calibrate(void); +bool getPixel(point& p); +point toPixel(point p); + +typedef enum { YES, MAYBE, NO } TOUCH; + +TOUCH getTouch(point& p); + +int readTouch(PinName p, PinName m, PinName a, PinName i); + + +int x_off = 22071; +int y_off = 18707; +int pp_tx = 373; +int pp_ty = 297; + +// ===================================== + +DigitalOut backlight(PIN_BL_TFT) ; + +ILI9341 TFT(SPI_8, 10000000, PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TFT, PIN_RESET_TFT, PIN_DC_TFT, "Seeed2.8") ; + +int page = 1 ; +int numPage = 3 ; + +Serial logger(SERIAL_TX, SERIAL_RX); + + +/// ================================================================================================ -DigitalOut backlight(PB_3) ; -DigitalOut tsc_cs(PA_9, 1) ; -DigitalOut tft_cs(PB_6, 1) ; +int readTouch(PinName p, PinName m, PinName a, PinName i) +{ + DigitalOut _p(p); + _p = 1; + DigitalOut _m(m); + _m = 0; + AnalogIn _a(a); + AnalogIn _i(i); // this pin has to be high Z (DigitalIn may also work) + wait_us(10); + return _a.read_u16(); +} + +TOUCH getTouch(point& p) +{ + int y2 = readTouch(PIN_XP,PIN_XM,PIN_YP,PIN_YM); + int x2 = readTouch(PIN_YP,PIN_YM,PIN_XP,PIN_XM); + int y1 = readTouch(PIN_XP,PIN_XM,PIN_YP,PIN_YM); + int x1 = readTouch(PIN_YP,PIN_YM,PIN_XP,PIN_XM); + int xd = x1 - x2; + int yd = y1 - y2; + xd = (xd > 0) ? xd : -xd; + yd = (yd > 0) ? xd : -xd; + p.x = x1 + x2; + p.y = y1 + y2; + + const int th = 8000; + const int df = 100; + TOUCH touch; + if (x1 < th || x2 < th || + y1 < th || y2 < th) { + p.x = 0; + p.y = 0; + touch = NO; + } else if (xd > df || yd > df) { + touch = MAYBE; + } else { + touch = YES; + } + //TFT.locate(0,50); + //TFT.printf("x: %6i y: %6i",p.x,p.y); + return touch; +} -ILI9341 TFT(SPI_8, 10000000, - PIN_MOSI, PIN_MISO, PIN_SCLK, - PIN_CS_TFT, PIN_RESET_TFT, PIN_DC_TFT, "Adafruit2.8") ; -SPI_STMPE610 TSC(PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TSC) ; +void calibrate(void) +{ + int i; + int a = 0,b = 0,c = 0, d = 0; + int pos_x = 0, pos_y = 0; + point p; + + backlight = 0 ; + //TFT.BusEnable(true) ; + + TFT.background(Black); + wait(0.1) ; + TFT.foreground(White); + wait(0.1) ; + TFT.cls() ; + wait(0.1) ; + TFT.set_font((unsigned char*) Arial12x12); + TFT.locate(90,0); + TFT.printf("Graphics"); + + TFT.line(0,3,6,3,White); + TFT.line(3,0,3,6,White); + + backlight = 1 ; + + //if (font) + //{ + // get the center of the screen + pos_x = TFT.columns() / 2 - 3; + pos_x = pos_x * Arial12x12[1]; + pos_y = (TFT.rows() / 2) - 1; + pos_y = pos_y * Arial12x12[2]; + TFT.locate(pos_x,pos_y); + TFT.printf("press cross "); + TFT.locate(pos_x,pos_y + Arial12x12[2]); + TFT.printf("to calibrate "); + //} + + for (i=0; i<5; i++) { + while (getTouch(p) != YES) + /*nothing*/; + a += p.x; + b += p.y; + } + a = a / 5; + b = b / 5; + //if (font) + //{ + TFT.locate(pos_x,pos_y); + TFT.printf("ok "); + TFT.locate(pos_x,pos_y + Arial12x12[2]); + TFT.printf("release touch "); + //} + while (getTouch(p) != NO) + /*nothing*/; + + TFT.cls(); + TFT.line(TFT.width() -5, TFT.height() - 8,TFT.width() - 5,TFT.height() -1,White); // paint cross + TFT.line(TFT.width() - 8,TFT.height() - 5,TFT.width() - 1,TFT.height() - 5,White); + //if (font) + //{ + TFT.locate(pos_x,pos_y); + TFT.printf("press cross "); + TFT.locate(pos_x,pos_y + Arial12x12[2]); + TFT.printf("to calibrate "); + //} + for (i=0; i<5; i++) { + while (getTouch(p) != YES) + /*nothing*/; + c+= p.x; + d+= p.y; + } + c = c / 5; + d = d / 5; + x_off = a; + y_off = b; + i = c-a; // delta x + pp_tx = i / (TFT.width() - 6); + i = d-b; // delta y + pp_ty = i / (TFT.height() - 6); + //if (font) + //{ + TFT.locate(pos_x,pos_y); + TFT.printf("Calibrated "); + TFT.locate(pos_x,pos_y + Arial12x12[2]); + TFT.printf("x %6i %4i", x_off, pp_tx); + TFT.locate(pos_x,pos_y + 2*Arial12x12[2]); + TFT.printf("y %6i %4i", y_off, pp_ty); + //} + while (getTouch(p) != NO) + /*nothing*/; + TFT.cls(); + + //TFT.BusEnable(false) ; + + printf("x_off:%6i pp_tx:%4i \n\r", x_off, pp_tx); + printf("y_off:%6i pp_ty:%4i \n\r", y_off, pp_ty); +} -int page = 0 ; -int numPage = 2 ; +point toPixel(point p) +{ + p.x -= x_off; + p.x /= pp_tx; + int w = TFT.width(); + if (p.x > w) p.x = w; + if (p.x < 0) p.x = 0; + p.y -= y_off; + p.y /= pp_ty; + int h = TFT.height(); + if (p.y > h) p.y = h; + if (p.y < 0) p.y = 0; + return (p); +} + +bool getPixel(point& p) +{ + TOUCH touch = getTouch(p); + p = toPixel(p); + return touch == YES; +} + + +// =================================================== void initTFT(void) { //Configure the display driver - TFT.BusEnable(true) ; + //TFT.BusEnable(true) ; TFT.FastWindow(true) ; TFT.background(Black); TFT.foreground(White); wait(0.01) ; TFT.cls(); - TFT.BusEnable(false) ; + //TFT.BusEnable(false) ; } void screen1(void) // Welcome Screen { - TFT.BusEnable(true) ; + //TFT.BusEnable(true) ; backlight = 0 ; TFT.background(White) ; wait(0.1) ; @@ -103,7 +300,7 @@ TFT.printf("and hold right side of screen") ; TFT.locate(30, 300) ; TFT.printf("until the next screen starts") ; - TFT.BusEnable(false) ; + //TFT.BusEnable(false) ; backlight = 1 ; } @@ -112,7 +309,7 @@ //Draw some graphics int i, x[2], y[2] ; backlight = 0 ; - TFT.BusEnable(true) ; + //TFT.BusEnable(true) ; TFT.background(Black); wait(0.1) ; TFT.foreground(White); @@ -159,20 +356,37 @@ TFT.printf("simple graphics drawing") ; TFT.locate(20, 290) ; TFT.printf("capability is provided") ; - TFT.BusEnable(false) ; + //TFT.BusEnable(false) ; backlight = 1 ; } -double clip(double src) +void screen3(void) // Graphics { - double value ; - value = src ; - if (value < 0.0) { - value = 0.0 ; - } else if (value > 2.0) { - value = 2.0 ; - } - return( value ) ; + //int rowX; + int rowY; + //int x = Terminal6x8[1]; + int y = Terminal6x8[2]; + + //Draw some text + backlight = 0 ; + + TFT.background(Black); + wait(0.1) ; + TFT.foreground(White); + wait(0.1) ; + TFT.cls() ; + wait(0.1) ; + + backlight = 1 ; + + TFT.set_font((unsigned char*) Terminal6x8); + + for( rowY=0; rowY<100; ++rowY ) + { + TFT.locate(0, (rowY%25)*y); + TFT.printf("%3d TFT width = %d, height = %d", rowY, TFT.width(), TFT.height()) ; + } + } void incPage(void) @@ -193,28 +407,26 @@ int main() { - uint16_t x, y, z ; + point p; + + // setup the pc serial logger + logger.baud(115200); + logger.printf("\r\n\r\n<<<<<<<<< TFT SCREEN TEST >>>>>>>>>>>\r\n" ); + int prevPage = 99 ; bool waitTouch = false ; - printf("Hello World\n") ; + initTFT() ; - tsc_cs = 1 ; - tft_cs = 0 ; - initTFT() ; - tft_cs = 1 ; - - tsc_cs = 0 ; - TSC.spi_format(8, 1) ; // for Nucleo F411RE - tsc_cs = 1 ; + printf("Program Started!\n\r") ; + printf("TFT width = %d, height = %d\n\r", TFT.width(), TFT.height()) ; - // screen0() ; - - printf("Program Started!\n\r") ; + //calibrate(); for(;;) { -// printf("TFT width = %d, height = %d\n\r", TFT.width(), TFT.height()) ; - tft_cs = 0 ; + + printf("page %d of %d\r\n", page, numPage ); + switch(page) { case 0: if (prevPage != page) { @@ -228,26 +440,33 @@ } waitTouch = true ; break ; + case 2: + if (prevPage != page) { + screen3() ; + } + waitTouch = true ; + break ; default: page = 0 ; break ; } prevPage = page ; - - tft_cs = 1 ; - do { - tsc_cs = 0 ; - TSC.getRAWPoint(&x, &y, &z) ; - if ((x != 0)||(y != 0) || (z != 0)) { - if (x < 1000) { // left + + do { + if( getPixel(p) ) + { + printf("TFT Touch x = %d, y = %d\n\r", p.x, p.y) ; + + if (p.x < 100) + { // left decPage() ; - } else if (x > 3000) { // right + } + else if (p.x > 150) + { // right incPage() ; - } + } waitTouch = false ; - } - tsc_cs = 1 ; - } while(waitTouch != false) ; - // wait(1) ; + } + } while(waitTouch != false) ; } }
diff -r cd5e3d371b54 -r 0a7005226e61 mbed.bld --- a/mbed.bld Thu Nov 19 13:34:57 2015 +0000 +++ b/mbed.bld Mon Jul 30 14:18:06 2018 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11 \ No newline at end of file +https://os.mbed.com/users/mbed_official/code/mbed/builds/a7c7b631e539 \ No newline at end of file