Demo program for the Oled display

Dependencies:   mbed-src

main.cpp

Committer:
star297
Date:
2015-01-09
Revision:
1:793dbd6d6498
Parent:
0:94bf5ec759da
Child:
2:1eac3ea8c6e8

File content as of revision 1:793dbd6d6498:

#include "mbed.h"
#include "OLED32028P1T.h"


OLED32028P1T oled(PTE0,PTE1,PTA12); // Oled Display tx, rx, rs
InterruptIn SignalIn(PTC1);         // conection of output NON-inverting DCF module
DigitalOut SignalLED(LED3);         // indicates DCF  signal on Mbed

Timer T1,T2,T3;
Ticker Ticker50ms;  // DCF IRQ timer

#define clkx  110       //this point represent the x center of the clock where maths is done
#define clky  138       //this point represent the y center of the clock where maths is done

char timebuf[40];
char datebuf[40];
char paritycheck,paritym,parityu,paritydmy;
char testu,testm,testdmy,summertime;
char min,minh,minl,hourh,hourl,day,dayh,dayl,monthh,monthl,yearh,yearl;
char weekDayName[7][4] = {"Sun","Mon","Tue","Wed","Thu", "Fri","Sat"};
char monthName[12][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
char MAX_DAY[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};  // Max days in a month for a non-leap year
char statusText[6][20] = {"Waiting Synchronise"," Wait for 21st bit ","Reading Signal data","  Checking Parity  "," Last Minute Okay  ","   Signal error    "};
char leapSymbol[2][10] = {"         ", "Leap Year"};

int hour,minute,second,dayofweek,dayofmonth,month,year,nextsec,DCF; 
int RTCsecond,RTCminute,RTChour,RTCdayofweek,RTCdayofmonth,RTCmonth,RTCyear;
int xbuffer,ybuffer,IRQ;
int xs,ys,xm,ym,xh,yh,x,y;
int handHour=60,handMin=75,handSec=78; //RTC clock hand sizes
int numposx=105,numposy=135;           // RTC clock number screen posistion

int start,sync,SignalStatus,nosignal,laststart,loop,interrupt_counter,dcf_sec,error_count;
int tz,rtcset,rtcset_times;
int r=255,g=255,b=255;
int draw_graph,dcf_good,signal_error,dcf_error,display;
int p_minute,p_hour,p_dayofweek,p_dayofmonth,p_month,p_year;
int dcf_array[61];

float angleH,angleM,angleS;
float fsecond,fminute;

typedef unsigned char byte;

struct tm t;

void RTCsetclock(),RTCset(),RTCread(),RTCclock(),RTCclockdraw(),RTCclockupdate();
void dcfISR(),dcfIRQ(),checkSIGNAL(),signal(),DCFbitprint();
void DCFclock(),DCFloop(),DCFshowClock(),DCFtestparity();
void DCFcheck(),bitprint(),DCFdrawgraph();
void DCFbitmapdraw(),DCFparitycalc(),DCFbitstatus(),DCFbitstatus2();
void DCFsetTime();

struct SignalStatus {
    bool is_leap;           // Leap year flag (NOT actually transmitted but calculated)
    bool DCFsample50;       // dcf sample at 50mS into the start of the second, seocnd marker pulse
    bool DCFsample150;      // dcf sample at 150mS into the start of the second, bit=1 if high, 0 if low
    bool DCFsample300;      // dcf sample at 300mS into the start of the second, error if high
    bool DCFsample500;      // dcf sample at 500mS into the start of the second, error if high
    bool DCFsample600;      // dcf sample at 600mS into the start of the second, error if high
    unsigned char frame;    // Received MSF framing code 01111110
    int  second;            // MSF-DCF second (NOT actually transmitted but calculated)
} dcf_status;


// Return the maximum day in month for a given month & year
byte maxDay(byte year, byte month)
{
    byte lastday, leap;
    leap = year%4 == 0 && year%100 !=0 || year%400 == 0;
    lastday = MAX_DAY[month - 1];
    dcf_status.is_leap = leap > 0 ? 1 : 0;
    if ((leap > 0) && (month == 2))
        lastday++;
    return lastday;
}

int main() {    
    
    SignalLED=1;       
    oled.init();
    oled.clear();
    oled.setTextBackgroundType(TEXT_OPAQUE);
    oled.setFontSize(FONT12X16);oled.setFontColor(oled.toRGB(255,255,0));    
    oled.setFontColor(oled.toRGB(255,255,0));
    oled.drawText(2,0,(FONT12X16),"--drawText vs. printf--",oled.toRGB(255,0,255));
    oled.drawText(2,22,(FONT5X7),"Use drawText as much as possible, it's nearly twice",oled.toRGB(255,255,255));
    oled.drawText(2,23,(FONT5X7),"as fast as printf. Make sure the serial stream is",oled.toRGB(255,255,255));
    oled.drawText(2,24,(FONT5X7),"NOT",oled.toRGB(255,0,0));
    oled.drawText(6,24,(FONT5X7),"interrupted when printing.",oled.toRGB(255,255,255));
    if (time(NULL) < 1396310400) {set_time(1396310400);}
    T3.start();
    
    while(T3<10){               
            oled.setFontColor(oled.toRGB(0,255,255));
            oled.locate (12,18);
            oled.printf("Next page in %2.1f seconds ",10 - T3.read());     
                   
            time_t seconds = time(NULL);
            strftime(timebuf, 32, "RTC %I:%M:%S %p", localtime(&seconds));           
            strftime(datebuf, 32, "%a %d %b %Y ", localtime(&seconds));
            
            T1.start();
            oled.drawText(2,2,(FONT12X16),timebuf,oled.toRGB(255,255,0));
            oled.drawText(2,3,(FONT12X16),datebuf,oled.toRGB(255,255,0));
            T1.stop();      
            
            T2.start();
            oled.setFontColor(oled.toRGB(0,255,0));
            oled.setFontSize(FONT12X16);            
            oled.locate (2,6);
            oled.printf("%s",timebuf);
            oled.locate (2,7);
            oled.printf("%s",datebuf);
            T2.stop(); 
            
            oled.setFontColor(oled.toRGB(255,255,255)); 
                oled.setFontSize(FONT8X12);
                oled.locate (4,6);
                oled.printf("drawText time  %3.2f mS",T1.read()*1000);T1.reset();       
                oled.locate (4,11);
                oled.printf("printf   time %3.2f mS",T2.read()*1000);T2.reset();                    
    }
    T3.reset();
    while(1){
        IRQ=0;
        SignalLED=1;
        RTCclock();
    }
    
 }
 
void RTCclock()
{
    while(IRQ==0){
        oled.disableTouch();oled.clear();
        oled.setTextBackgroundType (TEXT_TRANSPARENT);   
        RTCclockdraw();  
        oled.drawTextButton(1, 200, 210,(oled.toRGB(0,100,100)),(FONT12X16),(oled.toRGB(255,255,255)), 1, 1, "DCF Clock");
        oled.drawTextButton(1, 252, 185,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "Set RTC");
        oled.setTextBackgroundType (TEXT_OPAQUE);
        oled.drawText(0,0,(FONT12X16),"RTC Clock",oled.toRGB(255,0,0));
        oled.enableTouch();oled.resetTouchArea();      
    
            while(IRQ==0){   
                oled.setFontSize(FONT12X16);oled.locate(0,1);
                oled.setFontColor(oled.toRGB(255,255,255));
                time_t seconds = time(NULL);
                strftime(timebuf, 32, "%I:%M:%S %p", localtime(&seconds));           
                strftime(datebuf, 32, "%a %d %b %Y ", localtime(&seconds));
                oled.drawText(11,0,(FONT12X16),timebuf,oled.toRGB(255,255,0));
                oled.drawText(11,1,(FONT12X16),datebuf,oled.toRGB(255,255,0));
          
                if (seconds != nextsec) {RTCclockupdate();nextsec=seconds;}          
                oled.getTouch(&xbuffer,&ybuffer);
    
                oled.setFontSize(FONT5X7);oled.locate(40,6);    // this shows touch position
                oled.printf("X %03d Y %03d  ",xbuffer,ybuffer); // and can be removed
    
                if((xbuffer>195 && xbuffer<300) && (ybuffer>205 && ybuffer<220)){DCFclock();}
                if((xbuffer>240 && xbuffer<300) && (ybuffer>182 && ybuffer<200)){RTCsetclock();}          
            }
    }    
 } 

void RTCclockdraw()
{   
    (x)=0;
    while ((x)<60){
        x++;angleS=(x)*6;                   // clock minute markers in angle form
        xs=(sin((angleS*3.14)/180)) * 90;   // X component of markers
        ys=(cos((angleS*3.14)/180)) * 90;   // Y component of markers
        oled.drawLine(clkx,clky,clkx+xs,clky-ys,oled.toRGB(255,255,255));
    }       
    (x)=0;
    while ((x)<13){
        x++;angleS=(x)*30;                  // clock hour markers in angle form
        xs=(sin((angleS*3.14)/180)) * 90;   // X component of markers
        ys=(cos((angleS*3.14)/180)) * 90;   // Y component of markers
        oled.drawLine(clkx,clky,clkx+xs,clky-ys,oled.toRGB(0,255,255));   
            if (x==1)  oled.drawTextGraphic(numposx +(xs+8),numposy + (ys+8), FONT5X7, "5", 1, 1, oled.toRGB(255,255,255));
            if (x==2)  oled.drawTextGraphic(numposx +(xs+10),numposy + (ys+4), FONT5X7, "4", 1, 1, oled.toRGB(255,255,255));
            if (x==3)  oled.drawTextGraphic(numposx +(xs+10),numposy + (ys), FONT5X7, "3", 1, 1, oled.toRGB(255,255,255));
            if (x==4)  oled.drawTextGraphic(numposx +(xs+10),numposy + (ys-4), FONT5X7, "2", 1, 1, oled.toRGB(255,255,255));
            if (x==5)  oled.drawTextGraphic(numposx +(xs+8),numposy + (ys-8), FONT5X7, "1", 1, 1, oled.toRGB(255,255,255));
            if (x==6)  oled.drawTextGraphic(numposx +(xs),numposy + (ys-8), FONT5X7, "12", 1, 1, oled.toRGB(255,255,255));
            if (x==7)  oled.drawTextGraphic(numposx +(xs-4),numposy + (ys-8), FONT5X7, "11", 1, 1, oled.toRGB(255,255,255));
            if (x==8)  oled.drawTextGraphic(numposx +(xs-10),numposy + (ys-4), FONT5X7, "10", 1, 1, oled.toRGB(255,255,255));
            if (x==9)  oled.drawTextGraphic(numposx +(xs-4),numposy + (ys), FONT5X7, "9", 1, 1, oled.toRGB(255,255,255));
            if (x==10) oled.drawTextGraphic(numposx +(xs-4),numposy + (ys+4), FONT5X7, "8", 1, 1, oled.toRGB(255,255,255));
            if (x==11) oled.drawTextGraphic(numposx +(xs),numposy + (ys+8), FONT5X7, "7", 1, 1, oled.toRGB(255,255,255));
            if (x==12) oled.drawTextGraphic(numposx +(xs+3),numposy + (ys+8), FONT5X7, "6", 1, 1, oled.toRGB(255,255,255));       
    }  
    oled.setPenSize(0);
    oled.drawCircle(clkx,clky,80,oled.toRGB(0,0,0));
    oled.setPenSize(1);
    oled.drawCircle(clkx,clky,80,oled.toRGB(255,255,255));
    oled.drawCircle(clkx,clky,90,oled.toRGB(255,255,255));
    (x)=0;   
}
    
void RTCsetclock()
{
    oled.disableTouch();oled.clear();
    oled.drawText(0,0,(FONT12X16)," --Manual set RTC Time--",oled.toRGB(0,255,0));
    oled.setTextBackgroundType (TEXT_TRANSPARENT);   
    oled.drawTextButton(1, 265, 200,(oled.toRGB(0,100,100)),(FONT5X7),(oled.toRGB(255,255,255)), 1, 1, " Back ");
    oled.drawTextButton(1, 10, 200,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, " Reset RTC ");
    oled.drawTextButton(1, 120, 200,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, " Set RTC ");
    oled.drawTextButton(1, 16, 115,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "+");
    oled.drawTextButton(1, 16, 140,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "-");
    oled.drawTextButton(1, 52, 115,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "+");
    oled.drawTextButton(1, 52, 140,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "-");
    oled.drawTextButton(1, 88, 115,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "+");
    oled.drawTextButton(1, 88, 140,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "-");
    
    oled.drawTextButton(1, 174, 115,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "+");
    oled.drawTextButton(1, 174, 140,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, "-");
    oled.drawTextButton(1, 208, 115,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, " + ");
    oled.drawTextButton(1, 208, 140,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, " - ");
    oled.drawTextButton(1, 270, 115,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, " + ");
    oled.drawTextButton(1, 270, 140,(oled.toRGB(0,100,100)),(FONT8X12),(oled.toRGB(255,255,255)), 1, 1, " - ");
    oled.setTextBackgroundType (TEXT_OPAQUE);
    RTCread();
    second=RTCsecond;minute=RTCminute;hour=RTChour;dayofweek=RTCdayofweek;dayofmonth=RTCdayofmonth;month=RTCmonth;year=RTCyear;    
    
    while(IRQ==0){ 
    
        oled.enableTouch();
        time_t seconds = time(NULL);
        strftime(timebuf, 32, "%H:%M:%S", localtime(&seconds));           
        strftime(datebuf, 32, "%a %d %b' %Y", localtime(&seconds));
        oled.drawText(0,2,(FONT12X16),timebuf,oled.toRGB(255,255,255));
        oled.drawText(10,2,(FONT12X16),datebuf,oled.toRGB(255,255,255));
    
        oled.getTouch(&xbuffer,&ybuffer);        
        if((xbuffer>240 && xbuffer<290) && (ybuffer>190 && ybuffer<210)){RTCclock();}
        if((xbuffer>20 && xbuffer<109) && (ybuffer>190 && ybuffer<210)){set_time(1396310400);}
        if((xbuffer>120 && xbuffer<195) && (ybuffer>195 && ybuffer<210)){RTCset();RTCread();
            second=RTCsecond;minute=RTCminute;hour=RTChour;dayofweek=RTCdayofweek;dayofmonth=RTCdayofmonth;month=RTCmonth;year=RTCyear;
        }
        
        if((xbuffer>25 && xbuffer<40) && (ybuffer>124 && ybuffer<140)){hour++;}
        if((xbuffer>25 && xbuffer<40) && (ybuffer>146 && ybuffer<160)){hour--;}
        if((xbuffer>58 && xbuffer<74) && (ybuffer>124 && ybuffer<140)){minute++;}
        if((xbuffer>58 && xbuffer<74) && (ybuffer>146 && ybuffer<160)){minute--;}
        if((xbuffer>90 && xbuffer<105) && (ybuffer>124 && ybuffer<140)){second++;}
        if((xbuffer>90 && xbuffer<105) && (ybuffer>146 && ybuffer<160)){second--;}
        if((xbuffer>170 && xbuffer<186) && (ybuffer>124 && ybuffer<140)){dayofmonth++;}
        if((xbuffer>170 && xbuffer<186) && (ybuffer>146 && ybuffer<160)){dayofmonth--;}
        if((xbuffer>200 && xbuffer<230) && (ybuffer>124 && ybuffer<140)){month++;}
        if((xbuffer>200 && xbuffer<230) && (ybuffer>146 && ybuffer<160)){month--;}
        if((xbuffer>258 && xbuffer<288) && (ybuffer>124 && ybuffer<140)){year++;}
        if((xbuffer>258 && xbuffer<288) && (ybuffer>146 && ybuffer<160)){year--;}
        oled.disableTouch();      
        
        if (second >= 60) {second = 0;}
        if (second < 0) {second = 59;}
        if (minute >= 60) {minute = 0;}
        if (minute < 0) {minute = 59;}        
        if (hour >= 24) {hour = 0;}
        if (hour < 0) {hour = 23;}
        if (dayofweek > 6){dayofweek = 0;}
        if (dayofweek < 0){dayofweek = 6;}        
        if (month > 12) {month = 1;}
        if (month < 1) {month = 12;}
        if (dayofmonth <1) {dayofmonth = maxDay(year, month);}
        if (dayofmonth > maxDay(year, month)) {dayofmonth = 1;}
        if (year > 99) {year = 1;}
        if (year < 0) {year = 99;}
        
        
        oled.setFontSize(FONT12X16);oled.locate(1,6);
        oled.setFontColor(oled.toRGB(60,255,255));
        oled.printf("%2d:%02d:%02d ",hour,minute,second);
        oled.printf("%s %02d %s' 20%02d",weekDayName[dayofweek],dayofmonth,monthName[month-1],year);
    }
    
}    
void RTCclockupdate()
{ 
  RTCread();
  fsecond = (RTCsecond/12);
  fminute = (RTCminute/12);
  if (x==1){ //Erase all hands       
    oled.drawLine(clkx,clky,clkx+xs,clky-ys,oled.toRGB(0,0,0)); // Erase Second's hand
    oled.drawLine(clkx,clky,clkx+xm,clky-ym,oled.toRGB(0,0,0)); // Erase Minute's hand
    oled.drawLine(clkx,clky,clkx+xh,clky-yh,oled.toRGB(0,0,0)); // Erase Hour's hand 
  }
  //Calculations to get the second point of the clock hands. (first point is always the center of the clock)
  angleS=(RTCsecond*6);                    //seconds in angle form, 360 degrees divided by 60 seconds = 6, x6 to get current angle
  xs=(sin((angleS*3.14)/180)) * handSec;   //get X component of the second's hand
  ys=(cos((angleS*3.14)/180)) * handSec;   //get Y component of the second's hand
  angleM=((RTCminute*6) + fsecond);          //minutes in angle form, 360 degrees divided by 60 minutes = 6, add seconds fraction, x6 to get current angle
  xm=(sin((angleM*3.14)/180)) * handMin;   //get X component of the minutes's hand
  ym=(cos((angleM*3.14)/180)) * handMin;   //get Y component of the minutes's hand   
  angleH=(((RTChour*5) + (fminute))*6);    //hours in angle form, 360 degrees multiply hours by 5 hours = 60, add minute fraction, x6 to get angle
  xh=(sin((angleH*3.14)/180)) * handHour;  //get X component of the hours's hand
  yh=(cos((angleH*3.14)/180)) * handHour;  //get Y component of the hours's hand
  x=1; 
  //Draw current time hands 
  oled.drawLine(clkx,clky,clkx+xm,clky-ym,oled.toRGB(255,255,255));  
  oled.drawLine(clkx,clky,clkx+xh,clky-yh,oled.toRGB(0,255,255)); 
  oled.drawLine(clkx,clky,clkx+xs,clky-ys,oled.toRGB(255,255,0)); 
  oled.setPenSize(0);
  oled.drawCircle(clkx,clky,5,oled.toRGB(255,255,255));  // Draw the center of the second's hand  
}

void RTCread()
{
                time_t seconds = time(NULL);               
                char buffer[80];
                strftime(buffer, 2,"%S", localtime(&seconds));
                RTCsecond = atoi(buffer);
                strftime(buffer, 2,"%M", localtime(&seconds));
                RTCminute = atoi(buffer);                       
                strftime(buffer, 2,"%H", localtime(&seconds));
                RTChour = atoi(buffer);
                strftime(buffer, 2,"%d", localtime(&seconds));                                
                RTCdayofmonth = atoi(buffer);
                strftime(buffer, 2,"%w", localtime(&seconds));                
                RTCdayofweek = atoi(buffer);
                strftime(buffer, 2,"%m", localtime(&seconds));
                RTCmonth = atoi(buffer);
                strftime(buffer, 2,"%y", localtime(&seconds));
                RTCyear = atoi(buffer);
}
 
void RTCset()
{
            t.tm_sec = (second);        // 0-59
            t.tm_min = (minute);        // 0-59
            t.tm_hour = (hour);         // 0-23
            t.tm_mday = (dayofmonth);   // 1-31
            t.tm_mon = (month-1);       // 0-11 DCF "0" = Jan, -1 added for Mbed RCT clock format
            t.tm_year = ((year)+100);   // year since 1900,  current DCF year + 100 + 1900 = correct year
            if (DCF==1) {set_time(mktime(&t)-3600);}    // set RTC clock to DCF -1 hour for GMT time zone
                else {set_time(mktime(&t));}  // set RTC clock to local time zone 
            DCF=0;                
}

// ****************************  DCF clock  **********************************************

void DCFclock()
{   
    oled.clear();DCFbitmapdraw();RTCread();
    second=RTCsecond;minute=RTCminute;hour=RTChour;dayofweek=RTCdayofweek;dayofmonth=RTCdayofmonth;month=RTCmonth;year=RTCyear;
    if(tz==0) {oled.drawText(0,0,(FONT8X12)," RTC Clock Time (GMT)",oled.toRGB(255,0,0));}
    if (tz==1) {oled.drawText(0,0,(FONT8X12)," RTC Clock Time (CET)",oled.toRGB(255,0,0));}
    if (tz==2) {oled.drawText(0,0,(FONT8X12)," RTC Clock Time (EET)",oled.toRGB(255,0,0));}
    if (tz==3) {oled.drawText(0,0,(FONT8X12)," RTC Clock Time (MSK)",oled.toRGB(255,0,0));}
    oled.drawText(22,5,(FONT8X12)," DCF Time (CET)",oled.toRGB(255,255,0));
    oled.setTextBackgroundType (TEXT_TRANSPARENT);
    oled.drawTextButton(1, 270, 140,(oled.toRGB(0,100,100)),(FONT5X7),(oled.toRGB(255,255,255)), 1, 1, " Back ");
    oled.setTextBackgroundType (TEXT_OPAQUE); 
    draw_graph=0;DCFdrawgraph();
    oled.drawLine(155,190,169,190, oled.toRGB(225, 255, 255));
    oled.drawLine(169,190,169,203, oled.toRGB(225, 255, 255));
    oled.drawLine(170,203,287,203, oled.toRGB(255,255,255));
    oled.drawLine(287,190,287,203, oled.toRGB(225, 255, 255));
    oled.drawLine(288,190,305,190, oled.toRGB(225, 255, 255));
    oled.drawText(0,26,(FONT5X7)," 0               start   min  hour Dt dy mon  year 60",oled.toRGB(255,0,0));
    oled.setTouchArea(240,140,290,160);
    start=0;sync=0;x=0;y=5;r=0;SignalStatus=0;laststart=2;loop=0;interrupt_counter = 0;dcf_sec=0;error_count=0;       

    Ticker50ms.attach(& dcfISR, .05);
    
  while (IRQ==0) {
    if (loop==0) {
        DCFloop();     // Continuously get dcf time and Display data every second interrupted by the Ticker every 50ms   
        loop=1;}
   }
   oled.clear();     
}

void DCFloop()
{   
    if (interrupt_counter == 0) {
        if (start == 0) {dcf_sec=0;}
        if (dcf_sec == 0){dcf_array[58] = 0;}
        if (dcf_good==1 && dcf_sec==2) {DCF=1;RTCset();}                  
    }  
        
    if (interrupt_counter == 1) {   
        oled.setFontSize(FONT12X16);
        oled.locate(15,5);oled.setFontColor(oled.toRGB(255,255,255));
        oled.printf("%02d:%02d:%02d", hour, minute, second);
        oled.locate(3,13);oled.setFontColor(oled.toRGB(255,255,255));
        oled.setFontSize(FONT12X16);oled.printf("%02d",dcf_sec); 
    }   
   
    if (interrupt_counter==2){
        if (rtcset==0) {
            oled.drawText(33,2,(FONT5X7),"RTC -- un-set --  ",oled.toRGB(255,0,0));}
        if (rtcset==1) {
            oled.drawText(33,2,(FONT5X7),"RTC  *** set ***  ",oled.toRGB(0,255,0));}
        oled.setFontSize(FONT12X16);oled.locate(0,1);
        oled.setFontColor(oled.toRGB(255,255,255));
        RTCread();
        oled.printf("%2d:%02d:%02d",RTChour,RTCminute,RTCsecond);
    }            
   
    if (interrupt_counter == 4) {      
      if (dcf_sec > 59) {dcf_sec = 0;}
      if (dcf_sec>20 && signal_error==1) {DCFbitmapdraw();DCFdrawgraph();start=0;signal_error=0;SignalStatus=5;}
      if (dcf_sec == 57) {oled.drawText(36,7,(FONT8X12)," ",oled.toRGB(0,0,0));}
      if (start == 0 && signal_error==0) {SignalStatus=0;}      
    }            
   
    if (interrupt_counter == 6 && dcf_sec > 0){
       if (dcf_sec==1){DCFdrawgraph();SignalStatus = 1;}  
       oled.setPenSize(1); oled.drawRectangle(11, 229, (dcf_sec*5), 8, oled.toRGB(0,255,0));draw_graph=0;
       if (signal_error==1) {DCFdrawgraph();signal_error=0;SignalStatus=5;}       
    }
        
    if (interrupt_counter == 7){
        DCFbitstatus();
        if (dcf_sec == 21){SignalStatus=2;r = !r;}
        if (dcf_sec > 20 && dcf_sec < 59 ) {DCFbitprint();}
    } 
   
    if (interrupt_counter == 8){   
            if (start==1){dcf_array[dcf_sec]=dcf_status.DCFsample150;}
            oled.setFontSize(FONT12X16);oled.locate(0,2);
            oled.setFontColor(oled.toRGB(255,255,255));
            oled.printf("%s %02d %s' 20%02d",weekDayName[RTCdayofweek],RTCdayofmonth,monthName[RTCmonth-1],RTCyear);     
    }
          
   if (interrupt_counter == 10) {     
        oled.setFontSize(FONT8X12);oled.locate(23,8);oled.setFontColor(oled.toRGB(255,255,255));
        oled.printf("%s %02d %s' 20%02d", weekDayName[dayofweek], dayofmonth, monthName[month-1], year);
        if (summertime) oled.drawText(23,9,(FONT8X12),"Summer Time",oled.toRGB(255,128,0));
            else oled.drawText(23,9,(FONT8X12),"Winter Time",oled.toRGB(0,255,255));
        oled.drawText(23,10,(FONT8X12),leapSymbol[dcf_status.is_leap],oled.toRGB(0,255,160));   
   }
   
   if (interrupt_counter == 11 & second == 1) {  
        oled.setFontSize(FONT5X7);oled.locate(34,5);
        oled.setFontColor(oled.toRGB(255,255,255));
        oled.printf("RTC set x %d", rtcset_times);                   
   }
     
    if (interrupt_counter == 12){
        if (SignalStatus==0) {oled.drawText(26,20,(FONT5X7),statusText[SignalStatus],oled.toRGB(255,255,255));}
        if (SignalStatus==1) {oled.drawText(26,20,(FONT5X7),statusText[SignalStatus],oled.toRGB(255,255,0));}
        if (SignalStatus==2) {oled.drawText(26,20,(FONT5X7),statusText[SignalStatus],oled.toRGB(0,255,255));}
        if (SignalStatus==3) {oled.drawText(26,20,(FONT5X7),statusText[SignalStatus],oled.toRGB(0,0,255));}
        if (SignalStatus==4) {oled.drawText(26,20,(FONT5X7),statusText[SignalStatus],oled.toRGB(0,255,0));}
        if (SignalStatus==5) {
            oled.drawText(26,20,(FONT5X7),statusText[SignalStatus],oled.toRGB(255,0,0));
            oled.drawText(36,7,(FONT8X12)," ",oled.toRGB(0,0,0));
            start=0;SignalStatus=0;sync=0;
        }             
    }
   
    if (interrupt_counter==13){   
        if (start==0 && laststart != start) {oled.drawText(26,18,(FONT5X7),("No Sync"),oled.toRGB(255,0,0));laststart=start;}
        if (start==1 && laststart != start) {oled.drawText(26,18,(FONT5X7),("In Sync"),oled.toRGB(0,255,0));laststart=start;}            
    }        
            
    if (interrupt_counter>13){
        oled.getTouch(&xbuffer,&ybuffer);
            if (display==0){
            if((xbuffer>2 && xbuffer<318) && (ybuffer>2 && ybuffer<238)){        
            oled.displayControl(0x01,0x01);display=1;
            oled.resetTouchArea();}}
            if((xbuffer>240 && xbuffer<290) && (ybuffer>140 && ybuffer<160)){
            SignalIn.rise(NULL);Ticker50ms.detach();IRQ=1;}
    }
        
    if (interrupt_counter == 19){DCFbitstatus();}   
   
} 

void DCFtestparity()
{ 
        rtcset=0;DCFparitycalc();
        paritycheck= testu or testm or testdmy;        
        if (p_year>99) paritycheck=1;
        if (p_month>12) paritycheck=1;
        if (p_dayofmonth>31) paritycheck=1;
        if (p_hour>23) paritycheck=1;
        if (p_minute>59) paritycheck=1;       
        if (paritycheck) {dcf_good=0;SignalStatus = 5;} // bad parity      
           else {dcf_good=1;SignalStatus = 4;} // good parity
}

void DCFsetTime()
{
            second = dcf_sec;
            minute=p_minute;
            hour=p_hour;
            dayofweek=p_dayofweek;
            dayofmonth=p_dayofmonth;
            month=p_month;
            year=p_year;
            oled.drawText(36,7,(FONT8X12),"*",oled.toRGB(0,255,0));
}
void DCFbitprint()
{
    if (r==1) {oled.setFontColor(oled.toRGB(0,0,255));}    // alternate bit draw colour
    else {oled.setFontColor(oled.toRGB(255,255,255));}
    oled.setFontSize(FONT8X12);   
    if (dcf_sec==21){x=5;y=7;}
    if (dcf_sec==28){x=5;y=15;oled.locate(5,15);oled.printf("           ");}   
    if (dcf_sec==29){x=7;y=7;}     
    if (dcf_sec==35){x=7;y=15;}       
    if (dcf_sec==36){x=9;y=7;}
    if (dcf_sec==42){x=11;y=7;}
    if (dcf_sec==45){x=13;y=7;}
    if (dcf_sec==50){x=15;y=7;}
    oled.locate(x,y);
    oled.printf("%d",dcf_status.DCFsample150);
        y++;                          
}

void DCFbitmapdraw()
{
    x=2,y=6;
    oled.drawText(x-2,y,(FONT8X12)," Dcf M H D d M Y",oled.toRGB(255,255,0));     
    oled.drawText(x,y+1,(FONT8X12)," 1 i o a a o e",oled.toRGB(255,255,0));    
    oled.drawText(x,y+2,(FONT8X12)," 2 n u t y n a",oled.toRGB(255,255,0));    
    oled.drawText(x,y+3,(FONT8X12)," 4 u r e   t r",oled.toRGB(255,255,0));    
    oled.drawText(x,y+4,(FONT8X12)," 8 t       h  ",oled.toRGB(255,255,0));    
    oled.drawText(x,y+5,(FONT8X12),"10 e          ",oled.toRGB(255,255,0));    
    oled.drawText(x,y+6,(FONT8X12),"20            ",oled.toRGB(255,255,0));    
    oled.drawText(x,y+7,(FONT8X12),"40            ",oled.toRGB(255,255,0));   
    oled.drawText(x,y+8,(FONT8X12),"80            ",oled.toRGB(255,255,0));     
    oled.drawText(x,y+9,(FONT8X12)," P arity       ",oled.toRGB(255,255,0));   
    oled.drawLine(8,83,135,83, oled.toRGB(0, 255, 0));
    oled.drawLine(35,70,35,195, oled.toRGB(0, 255, 0));
}    
void DCFdrawgraph()
{   
    if (draw_graph==0){
    oled.setPenSize(0); 
    oled.drawRectangle(10,228,300,8,oled.toRGB(0,0,0));
    oled.setPenSize(1);
    oled.drawRectangle(10,227,302,10,oled.toRGB(255,255,255));
    oled.drawLine(10,220,10,237,oled.toRGB(255,255,255));
    oled.drawLine(312,220,312,237,oled.toRGB(255,255,255));
    oled.drawLine(111,220,111,237,oled.toRGB(255,255,255)); //start
    oled.drawLine(156,220,156,237,oled.toRGB(225,255,255)); //min
    oled.drawLine(186,220,186,237,oled.toRGB(255,255,225)); //hour
    oled.drawLine(216,220,216,237,oled.toRGB(225,255,225)); //date
    oled.drawLine(231,220,231,237, oled.toRGB(225, 255, 225));//day
    oled.drawLine(256,220,256,237, oled.toRGB(225, 255, 225));//month
    oled.drawLine(301,220,301,237, oled.toRGB(225, 255, 225));//year 
    draw_graph=1;
    }  
}   
void DCFbitstatus()
{       
        oled.locate(29,22);
        oled.setFontSize(FONT5X7);
        oled.setFontColor(oled.toRGB(255,0,0)); 
        oled.printf("%d %d %d  %d      %d",dcf_status.DCFsample50,dcf_status.DCFsample150,dcf_status.DCFsample300,dcf_status.DCFsample500,dcf_status.DCFsample600);        
        oled.setPenSize(0);        
        if (!dcf_status.DCFsample50) {oled.drawRectangle(170,190,11,12, oled.toRGB(0,0,0));}
        else {oled.drawRectangle(170,190,11,12, oled.toRGB(255,255,255));}
        if (!dcf_status.DCFsample150) {oled.drawRectangle(182,190,11,12, oled.toRGB(0,0,0));}
        else {oled.drawRectangle(182,190,11,12, oled.toRGB(255,255,255));}
        if (!dcf_status.DCFsample300) {oled.drawRectangle(194,190,11,12, oled.toRGB(0,0,0));}
        else {oled.drawRectangle(194,190,11,12, oled.toRGB(255,255,255));}
        if (!dcf_status.DCFsample500) {oled.drawRectangle(206,190,23,12, oled.toRGB(0,0,0));}
        else {oled.drawRectangle(206,190,23,12, oled.toRGB(255,255,255));}
        if (!dcf_status.DCFsample600) {oled.drawRectangle(230,190,56,12, oled.toRGB(0,0,0));}
        else {oled.drawRectangle(230,190,56,12, oled.toRGB(0,0,255));}
}

void DCFparitycalc()
{
//calculate summer/winter time----------------------------------------------------------------------
    summertime = dcf_array[17] & 1;
//calculate hour--------------------------------------------------------------------------------------
    hourh = dcf_array[34] * 20 + dcf_array[33] * 10;
    hourl = dcf_array[32] * 8 + dcf_array[31] * 4 + dcf_array[30] * 2 + dcf_array[29] * 1;
    p_hour = hourh + hourl;
//calculate minutes------------------------------------------------------------------------------------
    minl = dcf_array[24] * 8 + dcf_array[23] * 4 + dcf_array[22] * 2 + dcf_array[21] * 1;
    minh = dcf_array[27] * 40 + dcf_array[26] * 20 +dcf_array[25] * 10;
    p_minute = minh + minl;
//calculate day of week--------------------------------------------------------------------------------
    p_dayofweek = dcf_array[44] * 4 +dcf_array[43] * 2 + dcf_array[42] * 1;
//calculate day----------------------------------------------------------------------------------------
    dayl = dcf_array[39] * 8 + dcf_array[38] * 4 + dcf_array[37] * 2 + dcf_array[36] * 1;
    dayh = dcf_array[41] * 20 + dcf_array[40] * 10;
    p_dayofmonth=dayh+dayl;
//calculate month--------------------------------------------------------------------------------------
    monthh = dcf_array[49] * 10;
    monthl = dcf_array[48] * 8 + dcf_array[47] * 4 + dcf_array[46] * 2 + dcf_array[45] * 1;
    p_month = monthh +monthl;
//calculate year---------------------------------------------------------------------------------------
    yearh = dcf_array[57] * 80 + dcf_array[56] * 40 + dcf_array[55] * 20 + dcf_array[54] * 10;
    yearl = dcf_array[53] * 8 +dcf_array[52] * 4 + dcf_array[51] * 2 + dcf_array[50] * 1;
    p_year = yearh+yearl;
//calculate parity
    paritym = dcf_array[21] + dcf_array[22] + dcf_array[23] + dcf_array[24] + dcf_array[25] + dcf_array[26] +dcf_array[27] +dcf_array [28];
    parityu =dcf_array[29] + dcf_array[30] + dcf_array[31] + dcf_array[32] + dcf_array[33] + dcf_array[34] + dcf_array[35];
    paritydmy =dcf_array[36] + dcf_array [37] + dcf_array [38] + dcf_array [39] + dcf_array[40] + dcf_array[41] + dcf_array [42] + dcf_array [43] + dcf_array[44] + dcf_array [45] + dcf_array[46] + dcf_array [47] + dcf_array[48] + dcf_array[49] + dcf_array[50] + dcf_array[51] + dcf_array [52] + dcf_array[53] + dcf_array[54] + dcf_array[55] + dcf_array[56] + dcf_array[57] + dcf_array[58];
//test parity------------------------------
    testu=parityu & 1;
    testm=paritym & 1;
    testdmy=paritydmy & 1;
  }

void dcfIRQ(void)
{    
    if (sync==0){
             interrupt_counter = 0;sync=1;dcf_sec=0;error_count=0;
             Ticker50ms.attach(& dcfISR, .05);
    }   
}
 
void dcfISR()  //This is the interrupt service routine (ISR) that is called every 50ms 
{  
    interrupt_counter++;loop=0;
     
    SignalLED = SignalIn;  // Show dcfSignal state on LED     
     
    if (interrupt_counter == 20) { // 50mS x 20 = 1000mS = 1 Second
        interrupt_counter = 0;second++;dcf_sec++;
        if (start==0) dcf_sec=0; 
    }
    if (interrupt_counter == 0){
        if (dcf_sec==58) {SignalStatus = 3;}
        if (dcf_sec==59) {DCFtestparity();}
        if (dcf_good==1 && dcf_sec==1) {DCFsetTime();}
    }                
    if (second >= 60)   {++minute;second -=60;}
    if (minute >= 60)   {++hour;minute-=60;}
    if (hour >= 24)     {hour -=24;++dayofweek;++dayofmonth;}
    if (dayofweek > 6)  dayofweek = 0;
    if (dayofmonth > maxDay(year, month)) {dayofmonth = 1;month++;}
    if (month > 12) {month = 1;year++;}
    if (year > 99)      year = 1;
           
        switch (interrupt_counter) {          
            case 1: { //  50mS after start of second pulse
                dcf_status.DCFsample50 = (SignalIn);
               break;}
            case 3: { // 150mS after start of second pulse (bit "1" dcf Data)
                dcf_status.DCFsample150 = (SignalIn);                          
               break;}
            case 6: { // 300mS after start of second (signal error if true)
                dcf_status.DCFsample300 = (SignalIn);
                if (SignalIn) {dcf_error = 1;}                 
               break;}                
            case 10: { // 500mS after start of second (signal error if true)
                dcf_status.DCFsample500 = (SignalIn);
                if (SignalIn) {dcf_error = 1;}                
               break;}
            case 12: { // 600mS after start of second (signal error if true)
                dcf_status.DCFsample600 = (SignalIn);
                if (SignalIn) {dcf_error = 1;}                
               break;}                                                                       
          }          
            if (dcf_status.DCFsample50==0 && dcf_sec<58){sync=0;}
                       
            if (interrupt_counter==1){
                if (SignalIn){nosignal=1;}
                    else nosignal++;              
                if (nosignal>5){nosignal=2; SignalStatus = 5;signal_error=1;}                                  
            } 
            
            if (interrupt_counter==15){
                if (!dcf_status.DCFsample150 && !dcf_status.DCFsample50) {sync=0;start=1;}
            }
            if (interrupt_counter==18){
                if (dcf_error==1) {error_count++;dcf_error=0;}         
                if (error_count > 3 && sync==1) {error_count = 0;signal_error=1;}    
            }
            
} // End of ISR