While I was thinking about logging sensor values, I noticed that I have not got clock for this board. Blowsing the mbed API, I found that the ticker could be used. So this is my first trial of implementing a clock using the ticker. Meantime I added getPoint in my SPI_STMPE610 lib so that the x and y coordinate can be directly read.

Dependencies:   SPI_STMPE610 SPI_TFT_ILI9341 TFT_fonts mbed

Tokei means a clock or a watch in Japanese. To log values of sensor(s) I needed a way to trace the time. At first, knowing that the RTC is not connected in FRDM-KL25Z I thought it must be difficult to implement a clock, but finding the "ticker" in mbed lib, at least I could give a try.

センサの値をログするのに時計機能が欲しいかなと思っていたのですが、FRDM-KL25ZではRTCに32KHzが接続されていないのでちょっと難しいかなと mbed の API を見ていたら ticker というのがありました(笑)

/media/uploads/Rhyme/tokei.jpg

Since it must be painful to set the time each time powering the board, I implemented the minimum functions to set the time (hour, min, sec) using the Adafruit 2.8" TFT and Touch Sensor.

流石に起動毎にシリアルから時間を設定するのは厳しそうだったので とりあえず時、分、秒を設定できる最低限のUIも付けて見ました。

/media/uploads/Rhyme/set_hour.jpg /media/uploads/Rhyme/set_min.jpg /media/uploads/Rhyme/set_sec.jpg

Files at this revision

API Documentation at this revision

Comitter:
Rhyme
Date:
Sat Dec 13 08:48:34 2014 +0000
Child:
1:a3749e465942
Commit message:
First commit

Changed in this revision

SPI_STMPE610.lib Show annotated file Show diff for this revision Revisions of this file
SPI_TFT_ILI9341.lib Show annotated file Show diff for this revision Revisions of this file
TFT_fonts.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_STMPE610.lib	Sat Dec 13 08:48:34 2014 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/Rhyme/code/SPI_STMPE610/#0aa8f72d3cdd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI_TFT_ILI9341.lib	Sat Dec 13 08:48:34 2014 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/Rhyme/code/SPI_TFT_ILI9341/#61fa73a34834
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_fonts.lib	Sat Dec 13 08:48:34 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/dreschpe/code/TFT_fonts/#76774250fcec
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 13 08:48:34 2014 +0000
@@ -0,0 +1,308 @@
+/** Tokei
+ * "Tokei" means a clock or watch in Japanese
+ */
+ 
+#include "mbed.h"
+#include "SPI_TFT_ILI9341.h"
+#include "SPI_STMPE610.h"
+#include "Arial12x12.h"
+#include "Arial24x23.h"
+#include "Arial28x28.h"
+#include "font_big.h"
+
+#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
+
+// return values for the adjust menu
+#define AM_CANCEL 0x00
+#define AM_OK     0x01
+#define AM_UP     0x02
+#define AM_DOWN   0x04
+#define AM_NG     0xFF
+
+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(PTA12) ;
+
+Ticker timer ;
+bool ticked = false ;
+int year = 2014 ;
+int month = 12 ;
+int day = 13 ;
+int hour = 14 ;
+int min = 40 ;
+int sec = 0 ;
+char time_str[32] ;
+
+void initTFT(void)
+{
+    //Configure the display driver
+    TFT.background(Black);
+    TFT.foreground(White);
+    wait(0.01) ;
+    TFT.cls();
+}
+    
+void drawAdjustMenu(void)
+{
+    TFT.set_font((unsigned char*) Arial12x12);
+    TFT.locate(180, 100) ;
+    TFT.foreground(Yellow) ;
+    TFT.printf("UP") ;
+    TFT.locate(180, 160) ;
+    TFT.foreground(Yellow) ;
+    TFT.printf("DOWN") ;
+    TFT.locate(20, 280) ;
+    TFT.foreground(Blue) ;
+    TFT.printf("CANCEL") ;
+    TFT.locate(200, 280) ;
+    TFT.foreground(Green) ;
+    TFT.printf("OK") ;
+}
+
+int getAdjustMenu(void)
+{
+    uint16_t x, y, z ;
+    int result = AM_NG ;
+    if ( TSC.getPoint(&x, &y, &z)) {
+        if ((180 <= x)&&(x < 240)&&(80 <= y)&&(y < 120)) { // up
+            result = AM_UP ;
+        } else if ((180 <= x)&&(x < 240)&&(140 <= y)&&(y < 180)) { // down
+            result = AM_DOWN ;
+        } else if ((20 <= x)&&(x < 60)&&(260 <= y)) { // cancel
+            result = AM_CANCEL ;
+        } else if ((200 <= x)&&(x < 240)&&(260 <= y)) { // OK
+            result = AM_OK ;
+        }
+    }
+    return(result) ;
+}
+
+void set_hour(void)
+{
+    bool selected = false ;
+    int16_t tmp_hour, prev_value = -1 ;
+    char str[4] ;
+    tmp_hour = hour ;
+    TFT.cls() ;
+    TFT.foreground(White) ;
+    TFT.set_font((unsigned char*) Arial28x28);
+    TFT.locate(60, 50) ;
+    TFT.printf("Set Hour") ;
+     
+    while(!selected) {
+        if (tmp_hour != prev_value) {
+            TFT.foreground(White) ;
+            TFT.set_font((unsigned char*) Arial28x28);
+            sprintf(str, " %02d ", tmp_hour) ;
+            TFT.locate(80, 120) ;
+            TFT.printf(str) ;
+    
+            drawAdjustMenu() ;   
+            prev_value = tmp_hour ;    
+        }
+
+        switch(getAdjustMenu()) {
+        case AM_CANCEL:
+            selected = true ;
+            break ;
+        case AM_OK:
+            hour = tmp_hour ;
+            selected = true ;
+            break ;
+        case AM_UP:
+            tmp_hour++ ;
+            if (tmp_hour > 23) {
+                 tmp_hour = 0 ;
+            }
+            break ;
+        case AM_DOWN:
+            tmp_hour-- ;
+            if (tmp_hour < 0) {
+                tmp_hour = 0 ;
+            }
+        default:
+            break ;
+        }
+        wait(0.1) ;
+    }    
+    TFT.cls() ;
+}
+
+void set_min(void)
+{
+    bool selected = false ;
+    int16_t tmp_min, prev_value = -1 ;
+    char str[4] ;
+    tmp_min = min ;
+    TFT.cls() ;
+    TFT.set_font((unsigned char*) Arial28x28);
+    TFT.foreground(White) ;
+    TFT.locate(60, 50) ;
+    TFT.printf("Set Min") ;
+
+    while(!selected) {
+        if (tmp_min != prev_value) {
+            TFT.set_font((unsigned char*) Arial28x28);
+            TFT.foreground(White) ;
+            sprintf(str, " %02d ", tmp_min) ;
+            TFT.locate(80, 120) ;
+            TFT.printf(str) ;
+    
+            drawAdjustMenu() ;   
+            prev_value = tmp_min ;   
+        }
+       
+        switch(getAdjustMenu()) {
+        case AM_CANCEL:
+            selected = true ;
+            break ;
+        case AM_OK:
+            min = tmp_min ;
+            selected = true ;
+            break ;
+        case AM_UP:
+            tmp_min++ ;
+            if (tmp_min > 59) {
+                 tmp_min = 0 ;
+            }
+            break ;
+        case AM_DOWN:
+            tmp_min-- ;
+            if (tmp_min < 0) {
+                tmp_min = 0 ;
+            }
+        default:
+            break ;
+        }
+        wait(0.1) ;
+    }    
+    TFT.cls() ;
+}
+
+void set_sec(void)
+{
+    bool selected = false ;
+    int16_t tmp_sec, prev_value = -1 ;
+    char str[4] ;
+    tmp_sec = sec ;
+    TFT.cls() ;
+    TFT.foreground(White) ;
+    TFT.set_font((unsigned char*) Arial28x28);
+    TFT.locate(60, 50) ;
+    TFT.printf("Set Sec") ;
+
+    while(!selected) {
+        if (tmp_sec != prev_value) {
+            TFT.set_font((unsigned char*) Arial28x28);
+            TFT.foreground(White) ;
+            sprintf(str, " %02d ", tmp_sec) ;
+            TFT.locate(80, 120) ;
+            TFT.printf(str) ;
+    
+            drawAdjustMenu() ;    
+            prev_value = tmp_sec ;
+        }
+
+        switch(getAdjustMenu()) {
+        case AM_CANCEL:
+            selected = true ;
+            break ;
+        case AM_OK:
+            sec = tmp_sec ;
+            selected = true ;
+            break ;
+        case AM_UP:
+            tmp_sec++ ;
+            if (tmp_sec > 59) {
+                 tmp_sec = 0 ;
+            }
+            break ;
+        case AM_DOWN:
+            tmp_sec-- ;
+            if (tmp_sec < 0) {
+                tmp_sec = 0 ;
+            }
+        default:
+            break ;
+        }
+        wait(0.2) ;
+    }   
+    TFT.cls() ;
+}
+
+void set_time(void)
+{
+    set_hour() ;
+    set_min() ;
+    set_sec() ;
+}
+
+void display_time(void)
+{
+    TFT.set_font((unsigned char*) Arial28x28);
+    TFT.foreground(White) ;
+    sprintf(time_str, " %02d:%02d:%02d ",hour,min,sec) ;
+    TFT.locate(50, 100) ;
+    wait(0.01) ;
+    TFT.printf(time_str) ;
+    wait(0.01) ;
+}
+
+void tick_time(void) 
+{
+    sec++ ;
+    if (sec > 59) {
+        min++ ;
+        sec = sec % 60 ;
+    }
+    if (min > 59) {
+        hour++ ;
+        min = min % 60 ;
+    }
+    if (hour > 23) {
+        day++ ;
+        hour = hour % 24 ;
+    }
+    ticked = true ;
+}
+
+void draw_adjust_str(void)
+{
+    TFT.set_font((unsigned char*) Arial12x12) ;
+    TFT.foreground(Blue) ;
+    TFT.locate(180, 280) ;
+    TFT.printf("adjust") ;
+}
+
+int main()
+{
+    uint16_t x, y ;
+    
+    initTFT() ;
+    timer.attach(&tick_time, 1) ;
+    draw_adjust_str() ;
+    backlight = 1 ;
+    
+    for(;;) {
+        if (ticked) {
+            display_time() ;
+            ticked = false ;
+        }
+        
+        if ( TSC.getPoint(&x, &y)) {
+            if ((180 < x)&&(260 < y)) {
+                set_time() ;
+                draw_adjust_str() ;
+            }
+        }       
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Dec 13 08:48:34 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/4fc01daae5a5
\ No newline at end of file