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Stopwatch now uses less idle time.

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This commit is contained in:
Travis Goodspeed 2018-07-29 11:02:50 -04:00
parent 89839acee1
commit 3a2dc7f52c
1 changed files with 34 additions and 19 deletions
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53
firmware/apps/stopwatch.c
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@ -4,10 +4,13 @@
This is a simple stop watch, which begins counting as the + key is
hit and clears the count when the 0 key is pressed. Because the
RTC is busy with the real time, we could in quarter seconds as the
RTC is busy with the real time, we count in quarter seconds as the
display is updated.
We do not count time or store the count when in other applications.
It would be nice to change that, so that something could be timed in
the background while the user is doing other things.
*/
#include "api.h"
@ -33,6 +36,10 @@ void stopwatch_init(){
hour=0;
//Start off without counting.
counting=0;
//Draw these once, rather than every frame.
lcd_cleardigit(5); //Space
lcd_cleardigit(2); //Space
}
//! Exit form the stopwatch app.
@ -92,23 +99,31 @@ void stopwatch_draw_time(){
hour++;
hourhex=int2bcd(hour);
}
//Blink the colon once a second.
setcolon((count>>1)&1);
//We either draw hhmmss or mmssSS.
if(hour){
//Only draw if the subseconds have changed.
//Only draw if the subseconds are zero.
if(!subhex){
hourhex=int2bcd(hour);
minhex=int2bcd(min);
sechex=int2bcd(sec);
lcd_digit(7,hourhex>>4);
lcd_digit(6,hourhex&0xF);
lcd_cleardigit(5); //Space
setcolon((count>>1)&1);
lcd_digit(4,minhex>>4);
lcd_digit(3,minhex&0xF);
lcd_cleardigit(2); //Space
lcd_digit(1,sechex>>4);
lcd_digit(0,sechex&0xF);
//Draw minutes if seconds are zero.
if(!sec){
minhex=int2bcd(min);
lcd_digit(4,minhex>>4);
lcd_digit(3,minhex&0xF);
//Draw hours if minutes are zero.
if(!min){
hourhex=int2bcd(hour);
lcd_digit(7,hourhex>>4);
lcd_digit(6,hourhex&0xF);
}
}
}
}else{
//Draw the subsecond first.
@ -117,16 +132,16 @@ void stopwatch_draw_time(){
//Only draw the rest if the subseconds have changed.
if(!subhex || count==1){
minhex=int2bcd(min);
sechex=int2bcd(sec);
lcd_digit(7,minhex>>4);
lcd_digit(6,minhex&0xF);
lcd_cleardigit(5); //Space
setcolon((count>>1)&1);
lcd_digit(4,sechex>>4);
lcd_digit(3,sechex&0xF);
lcd_cleardigit(2); //Space
//Update minutes if the seconds are zero.
if(!sec){
minhex=int2bcd(min);
lcd_digit(7,minhex>>4);
lcd_digit(6,minhex&0xF);
}
}
}
}