TFT_test_frdm-k64f - Adafruit TFT 2.8" test program for FRDM-K64F Note…

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Motoo Tanaka / Mbed 2 deprecated TFT_test_frdm-k64f

Adafruit TFT 2.8" test program for FRDM-K64F Note: J11 must be cut to make TSC work, but to download the program it must be reconnected, use pin-header and jumper.

Dependencies: MMA8451Q SPI_STMPE610 SPI_TFT_ILI9341 TFT_fonts mbed

This program was to test Adafruit 2.8" TFT with touch with FRDM-K64F. After download the binary to the FRDM-K64F and push the reset button , a simple welcome message will be displayed.

このプログラムは私が秋月で購入した Adafruit 2.8" TFT http://akizukidenshi.com/catalog/g/gM-07747/ をFRDM-K64F で試すために書いたものです。ダウンロード後にFRDM-K64Fのリセットスイッチを押すと最初の画面が表示されます。

/media/uploads/Rhyme/img_0979_s.jpg

If you push and keep the right side of the screen, the screen will advance to the page2, which is a simple graph sample.

ここで画面の右側をしばらく押していると、次のページに移行します。このページでは、簡単なグラフを表示する例を描画しています。

/media/uploads/Rhyme/img_0980_s.jpg

And if you do the same again, the program advances to the page3, which is a data display page of MMA8451Q accelerometer mounted on the FRDM-K64F. Note: Actually FRDM-K64F has FXOS8700CQ Acc + Mag, but it can emulate MMA8451Q.

さらに画面の右側をしばらく押していると、次のページに移行します。ここでは、FRDM-K64Fに搭載されている MMA8451Q という３軸の加速度センサの値を表示しています。 ※ 実はFRDM-K64F に搭載されているものは FXOS8700CQ というセンサなのですが、MMA8451Qのフリもしてくれるので、それを利用しています。

/media/uploads/Rhyme/img_0981_s.jpg

And this is the last page of this program, so far, so if you try to advance page, it will return to the first page. Note: Because of some bug, sometimes the clear screen fails and drawing of the page is screwed, but if you advance page or push reset button, usually it will return to normal picture.

このページが最後のページになっているので、さらにページ送りをすると最初のページに戻ります。 ※ プログラム(もしくはライブラリ)のどこかに虫がいるようでときどき画面消去に失敗して、複数の画面が重ね描きされたりします、ページ送りをするか、リセットボタンを押すと通常状態に復帰できます。(^ ^;

Note: Probably some noticed that push and keep left side move the screen to the previous page. ※ 画面の左側を押し続けると、前のページ戻ることに　気づかれたかたもおいでかと思います。

/media/uploads/Rhyme/img_0982_s.jpg

BTW, I encountered a nasty problem with this setup, since OSBDM and TSC shares the same pin, you must cut the jumper at J11 to make TSC work, but you must reconnect it to make downloading work. At first I put the jumper pin on the top of the FRDM-K64F, but with this I had to remove the TFT everytime re-loading the program, which made me pretty unhappy, so I asked my friend to put a L-type jumper on the bottom of the board, so that the TFT panel can stay.

ところで、このセットアップの場合、OSBDMとTSCがピンを共用しているために、TSCを使えるようにするためには、J11のジャンパパターンを切る必要がありました。しかしプログラムをダウンロードするためには再度J11をショートする必要が出てきます。最初、ジャンパピンを基板の上側につけたのですが、そうするとプログラムの度にTFTを外す必要が出てきます。耐えられなくなって友人にL型のジャンパピンを基板の裏側につけてもらうことで解決を見ました。

3-Jun-2015 With the newest FRDM-K64F TSC stopped working.!
After spending a few days, finally I found that the D8 pin which originally was PTA0 is now PTC12 !!
So for those with FRDM-K64 board rev E or later
The good news is that you don't have to cut the J11 anymore
The bad news is change pin definition for PIN_CS_TSC from PTA0 to PTC12.

For FRDM-K64F rev.E or later

#define PIN_CS_TSC   PTC12

2015年6月3日　最近のFRDM-K64Fでタッチセンサが効かないことがわかりました！
数日戦ったところ、D8に接続されているピンが PTA0 から PTC12 に変わっていることがわかりました！！
もしお持ちのFRDM-K64Fの基板リビジョンが E 以降であれば
良い報せとしては、もう J11 を切ってジャンパを付ける必要がなくなりました。
悪い報せとしては、コード内で TSC CS の定義を PTA0 から PTC12 に変更してください。

For FRDM-K64F rev.E or later

#define PIN_CS_TSC   PTC12

main.cpp

Committer:: Rhyme
Date:: 2015-06-03
Revision:: 3:5b9647f22941
Parent:: 1:5ea1dc8f875f

File content as of revision 3:5b9647f22941:

/* mbed main.cpp to test adafruit 2.8" TFT LCD shiled w Touchscreen
 * Copyright (c) 2014 Motoo Tanaka @ Design Methodology Lab
 *
 * 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.
 */
 
 /* *
  * @note This program is derived from the SeeeStudioTFTv2 program.
  * @note Although both program share same ILI9341 TFT driver,
  * @note the touch sensor was not same with the Display I purchased from Akizuki.
  * @note http://akizukidenshi.com/catalog/g/gM-07747/
  * @note The touch sensor on the display is STMPE610,
  * @note so I hacked the minimum spi driver for it (polling mode only).
  */
/**
 * @note To make this work with FRDM-K64F
 * @note PTA0 must be disconnected from the swd clk by cutting J11.
 * @note But to re-active SWD you need to put jumper header to J11
 * @note so that it can be re-connected by a jumper.
 */

#include "mbed.h"
#include "MMA8451Q.h"
#include <math.h>
#include "SPI_TFT_ILI9341.h"
#include "SPI_STMPE610.h"
#include "Arial12x12.h"
#include "Arial24x23.h"
#include "Arial28x28.h"
#include "font_big.h"

#if 0 
/* 
// For FRDM-KL25Z
#define PIN_XP          PTB3
#define PIN_XM          PTB1
#define PIN_YP          PTB2
#define PIN_YM          PTB0
#define PIN_MOSI        PTD2
#define PIN_MISO        PTD3 
#define PIN_SCLK        PTD1 
#define PIN_CS_TFT      PTD0 
#define PIN_DC_TFT      PTD5 
#define PIN_BL_TFT      PTC9 
#define PIN_CS_SD       PTA4 
#define PIN_CS_TSC      PTA13
#define PIN_TSC_INTR    PTC9
#define PIN_BACKLIGHT   PTA12
*/
#endif

#if 1
// For FRDM-K64F
#define PIN_XP          PTB11
#define PIN_XM          PTB3
#define PIN_YP          PTB10
#define PIN_YM          PTB2
#define PIN_MOSI        PTD2
#define PIN_MISO        PTD3 
#define PIN_SCLK        PTD1 
#define PIN_CS_TFT      PTD0 
#define PIN_DC_TFT      PTC4 
#define PIN_BL_TFT      PTC3 
#define PIN_CS_SD       PTB23 
// for board rev E or later
#define PIN_CS_TSC      PTC12
// for earlier boards use following line
// #define PIN_CS_TSC      PTA0
#define PIN_TSC_INTR    PTC3
#define PIN_BACKLIGHT   PTA1
#endif


#define MMA8451_I2C_ADDRESS (0x1d<<1)
MMA8451Q *acc = 0 ;

// SeeedStudioTFTv2 TFT(PIN_XP, PIN_XM, PIN_YP, PIN_YM, PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TFT, PIN_DC_TFT, PIN_BL_TFT, PIN_CS_SD);
//  SPI_TFT_ILI9341(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName dc, const char* name ="TFT");
SPI_TFT_ILI9341 TFT(PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TFT, PIN_BL_TFT, PIN_DC_TFT) ;
SPI_STMPE610 TSC(PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TSC) ;

DigitalOut backlight(PIN_BACKLIGHT) ;
DigitalIn pinD7(PIN_TSC_INTR) ;

int page = 0 ;
int numPage = 3 ;

void initTFT(void)
{
    //Configure the display driver
    TFT.background(Black);
    TFT.foreground(White);
    wait(0.01) ;
    TFT.cls();
}

void screen1(void) // Welcome Screen
{
    backlight = 0 ;
    TFT.background(White) ;
    TFT.cls() ;

    wait(0.1) ;
    TFT.set_font((unsigned char*) Arial24x23);
    TFT.foreground(Red) ;
    TFT.locate(80, 40) ;
    TFT.printf("mbed") ;
    TFT.foreground(Blue);
    TFT.locate(60, 80) ;
    TFT.printf("TFT 2.8\"") ; 
    TFT.locate(40, 120) ;
    TFT.printf("with touch") ;
    TFT.foreground(Black);
    TFT.set_font((unsigned char*) Arial12x12);
    TFT.foreground(Blue) ;
    TFT.locate(10, 180) ;
    TFT.printf("This program is running on") ;
    TFT.locate(10, 200) ;
    TFT.printf("freescale FRDM-K64F with") ;
    TFT.locate(10, 220) ;
    TFT.printf("a program developed on mbed") ;
    TFT.foreground(Green) ;
    TFT.locate(10, 260) ;
    TFT.printf("To advance demo page, touch") ;
    TFT.locate(10, 280) ;
    TFT.printf("and hold right side of screen") ;
    TFT.locate(10, 300) ;
    TFT.printf("until the next screen starts") ;
    backlight = 1 ;
}

void screen2(void) // Graphics
{
    //Draw some graphics
    int i, x[2], y[2] ;
    backlight = 0 ;

    TFT.background(Black);
    TFT.foreground(White);
    TFT.cls() ;
    TFT.set_font((unsigned char*) Arial12x12);
    TFT.locate(90,0);
    TFT.printf("Graphics");
    
    x[0] = 25 ; x[1] = 224 ;
    y[0] = 20 ; y[1] = 219 ;
    for (i = 20 ; i < 220 ; i += 10) {
        TFT.line(i+5, y[0], i+5, y[1], Blue) ;
        TFT.line(x[0], i, x[1], i, Blue) ;
    }
    TFT.line(125, y[0], 125, y[1], Green) ;
    TFT.line(x[0], 120, x[1], 120, Green) ;
    TFT.rect(x[0],y[0], x[1], y[1], Green) ;
    TFT.locate(10, 20) ;
    TFT.printf("V") ;
    TFT.locate(0, 115) ;
    TFT.printf("0.0") ;
    TFT.locate(115, 225) ;
    TFT.printf("0.0") ;
    TFT.locate(215, 225) ;
    TFT.printf("T") ;

    double s;
    for (int i = x[0]; i < 225; i++) {
        s = 40 * sin((long double)i / 20);
        TFT.pixel(i, 120 + (int)s, White);
    }
    
    TFT.fillrect(10, 240, 229, 309, White) ;
    TFT.rect(10, 240, 229, 309, Red) ;
    TFT.rect(11, 241, 228, 308, Red) ;
    
    TFT.background(White) ;
    TFT.foreground(Black) ;
    TFT.locate(20, 250) ;
    TFT.printf("With QVGA resolution") ;
    TFT.locate(20, 270) ;
    TFT.printf("simple graphics drawing") ;
    TFT.locate(20, 290) ;
    TFT.printf("capability is provided") ;
    backlight = 1 ;
}    

double clip(double src)
{
    double value ;
    value = src ;
    if (value < 0.0) {
        value = 0.0 ;
    } else if (value > 2.0) {
        value = 2.0 ;
    }
    return( value ) ;
}

void screen3(void)
{
    int t = 0 ;
    int pt = 0 ; // previous t 
    int i, x, y ;
    unsigned int data[3] ; // for x, y, z 
    unsigned int prev[3] ;
    unsigned short signalHeight = 39 ;
    unsigned short xoffset = 30 ;
    unsigned short yoffset = 120 ;
    unsigned short zoffset = 210 ;
    unsigned short paneX[2] = {20, 235} ;
    unsigned short paneH = 81 ;
 
    backlight = 0 ;
    TFT.background(Black) ;
    TFT.foreground(White) ;
//    TFT.cls() ;

 
    TFT.fillrect(paneX[0], xoffset, paneX[1], xoffset+paneH, Black) ;
    TFT.fillrect(paneX[0], yoffset, paneX[1], yoffset+paneH, Black) ;
    TFT.fillrect(paneX[0], zoffset, paneX[1], zoffset+paneH, Black) ;
    TFT.fillrect(paneX[0], xoffset, paneX[1], xoffset+paneH, Black) ;
    for (i = 0 ; i < 10 ; i++ ) {
        y = i * 8 ;
        TFT.line(paneX[0], xoffset + y, paneX[1], xoffset + y, Blue) ;
        TFT.line(paneX[0], yoffset + y, paneX[1], yoffset + y, Blue) ;
        TFT.line(paneX[0], zoffset + y, paneX[1], zoffset + y, Blue) ;
    }
    for (x = 30 ; x < paneX[1] ; x += 10 ) {
        TFT.line(x, xoffset, x, xoffset+paneH, Blue) ;
        TFT.line(x, yoffset, x, yoffset+paneH, Blue) ;
        TFT.line(x, zoffset, x, zoffset+paneH, Blue) ;
    } 
    TFT.rect(paneX[0], xoffset, paneX[1], xoffset+paneH, White) ;
    TFT.rect(paneX[0], yoffset, paneX[1], yoffset+paneH, White) ;
    TFT.rect(paneX[0], zoffset, paneX[1], zoffset+paneH, White) ;
    TFT.set_font((unsigned char*) Arial12x12);
    TFT.locate(5, xoffset+30) ;
    TFT.printf("X") ;
    TFT.locate(5, yoffset+30) ;
    TFT.printf("Y") ;
    TFT.locate(5, zoffset+30) ;
    TFT.printf("Z") ;
    TFT.locate(50, 10) ;
    TFT.printf("Xtrinsic Accelerometer") ;
    TFT.locate(90, 300) ;
    TFT.printf("MMA8451Q") ;
    
    prev[0] = xoffset + (signalHeight * clip((1.0 + acc->getAccX()))) ;
    prev[1] = yoffset + (signalHeight * clip((1.0 + acc->getAccY()))) ;
    prev[2] = zoffset + (signalHeight * clip((1.0 + acc->getAccZ()))) ;
    pt = paneX[0] ;
    backlight = 1 ;
    for(t = 21 ; t < paneX[1] ; t++) {
        data[0] = xoffset + (signalHeight * clip((1.0 + acc->getAccX()))) ;
        data[1] = yoffset + (signalHeight * clip((1.0 + acc->getAccY()))) ;
        data[2] = zoffset + (signalHeight * clip((1.0 + acc->getAccZ()))) ;
        TFT.line(pt, prev[0], t, data[0], Red) ;
        TFT.line(pt, prev[1], t, data[1], Green) ;
        TFT.line(pt, prev[2], t, data[2], Yellow) ;
        prev[0] = data[0] ;
        prev[1] = data[1] ;
        prev[2] = data[2] ;
        pt = t ;
        wait(0.01) ;
    }
}

void incPage(void)
{
    page++ ;
    if (page >= numPage) {
        page = 0 ;
    }
}

void decPage(void) 
{
    page-- ;
    if (page < 0) {
        page = numPage - 1 ;
    }
}
    
int main()
{
    uint16_t x, y, z ;
    int prevPage = 0 ;
    int touched = 0 ;
    
 
    
    initTFT() ;
    
    screen1() ;
        
    printf("Program Started!\n\r") ;
    
    acc = new MMA8451Q(PTE25, PTE24, MMA8451_I2C_ADDRESS) ;
    
    for(;;) {
//        printf("TFT width = %d, height = %d\n\r", TFT.width(), TFT.height()) ;
        switch(page) {
        case 0:
            if (prevPage != page) {
                screen1() ;
            }
            wait(1) ;
            break ;
        case 1:
            if (prevPage != page) {
                screen2() ; 
            }
            wait(1) ;
            break ;
        case 2:
            if (prevPage != page) {
                TFT.background(Black) ;
                TFT.foreground(White) ;
                TFT.cls() ;
            }
            screen3() ; 
            wait(2) ;
            break ;
        default:
            page = 0 ; 
            break ;
        }
        prevPage = page ;
        printf("Screen Printed\n\r") ;

        x = 0 ; y = 0 ; z = 0 ;
        touched = TSC.getRAWPoint(&x, &y, &z) ;
        printf("touched = %d x = %d, y = %d, z = %d\n\r",touched, x,y,z) ;
        if ((x != 0)||(y != 0) || (z != 0)) {
            if (x < 1000) { // left
                decPage() ;
            } else if (x > 3000) { // right
                incPage() ;
            }
        }
//        wait(1) ;
    }
}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	09 Nov 2014
Imports:	93
Forks:	0
Commits:	4
Dependents:	0
Dependencies:	5
Followers:	6

The code in this repository is Apache licensed.

For FRDM-K64F rev.E or later

For FRDM-K64F rev.E or later

main.cpp

File content as of revision 3:5b9647f22941:

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