Matt Dominey / Stopwatch

Stopwatch library with start, stop, and getTime functions. Returns a 00:00:00 in MM:SS:MS format with a max duration of ~30min per documentation on the Timer class. Can easily be output through an LCD/TFT with printf(stopwatch.getTime());

Dependents:   ProgrammaBasis

Stopwatch.cpp@0:3328857bf625, 2012-07-16 (annotated)

Committer:
mdomino
Date:
Mon Jul 16 19:46:34 2012 +0000
Revision:
0:3328857bf625
Stopwatch library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mdomino 0:3328857bf625 1 #include "Stopwatch.h"
mdomino 0:3328857bf625 2 #include "mbed.h"
mdomino 0:3328857bf625 3
mdomino 0:3328857bf625 4 Stopwatch::Stopwatch() {
mdomino 0:3328857bf625 5 // constructor
mdomino 0:3328857bf625 6 }
mdomino 0:3328857bf625 7
mdomino 0:3328857bf625 8 Stopwatch::~Stopwatch() {
mdomino 0:3328857bf625 9 // destructor
mdomino 0:3328857bf625 10 }
mdomino 0:3328857bf625 11
mdomino 0:3328857bf625 12 void Stopwatch::start() {
mdomino 0:3328857bf625 13 // Start the timer
mdomino 0:3328857bf625 14 sw.start();
mdomino 0:3328857bf625 15 }
mdomino 0:3328857bf625 16
mdomino 0:3328857bf625 17 void Stopwatch::stop() {
mdomino 0:3328857bf625 18 // Stop the timer
mdomino 0:3328857bf625 19 sw.stop();
mdomino 0:3328857bf625 20 }
mdomino 0:3328857bf625 21
mdomino 0:3328857bf625 22 char* Stopwatch::getTime() {
mdomino 0:3328857bf625 23 // Convert time in milliseconds to 00:00:00 format for output to LCD
mdomino 0:3328857bf625 24 // Returns a pointer to a 8 char array in time format
mdomino 0:3328857bf625 25 ms = sw.read_ms();
mdomino 0:3328857bf625 26 sec = (ms/1000);
mdomino 0:3328857bf625 27 ms = ms - (sec*1000);
mdomino 0:3328857bf625 28 min = (sec/60);
mdomino 0:3328857bf625 29 sec = sec - (min*60);
mdomino 0:3328857bf625 30 ms = (ms/10);
mdomino 0:3328857bf625 31 sprintf(buffer, "%02d:%02d:%d", min, sec, ms);
mdomino 0:3328857bf625 32 return buffer;
mdomino 0:3328857bf625 33 }