Jason Garner / registers-example

My attempt at using the mbed without the mbed libraries.

Dependencies:   ARM registers

Here is a main.cpp, that uses the registers library.

main.cpp@2:e26c096f1946, 2012-12-30 (annotated)

Committer:
elevatorguy
Date:
Sun Dec 30 04:58:42 2012 +0000
Revision:
2:e26c096f1946
Parent:
0:5fa5046f2ff5
Child:
3:88da6c0412b0
Timer work

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elevatorguy 2:e26c096f1946 1 #include "registers.h"
elevatorguy 0:5fa5046f2ff5 2 DigitalOut led1(LED1);
elevatorguy 0:5fa5046f2ff5 3 DigitalOut led2(LED2);
elevatorguy 2:e26c096f1946 4 DigitalOut led3(LED3);
elevatorguy 2:e26c096f1946 5 DigitalOut led4(LED4);
elevatorguy 0:5fa5046f2ff5 6 DigitalIn switch1(p21);
elevatorguy 0:5fa5046f2ff5 7
elevatorguy 2:e26c096f1946 8 Serial pc;
elevatorguy 2:e26c096f1946 9 Timer t(1000); //ms resolution for a serial stopwatch demo
elevatorguy 2:e26c096f1946 10
elevatorguy 2:e26c096f1946 11 int main() { //Timer demonstration
elevatorguy 0:5fa5046f2ff5 12 switch1.mode(PULLDOWN);
elevatorguy 2:e26c096f1946 13 t.start();
elevatorguy 2:e26c096f1946 14
elevatorguy 2:e26c096f1946 15 while(1)
elevatorguy 2:e26c096f1946 16 {
elevatorguy 2:e26c096f1946 17 double time = t;
elevatorguy 2:e26c096f1946 18 int h = 0;
elevatorguy 2:e26c096f1946 19 int m = 0;
elevatorguy 2:e26c096f1946 20 while(time > 3600)
elevatorguy 2:e26c096f1946 21 {
elevatorguy 2:e26c096f1946 22 time = time - 3600;
elevatorguy 2:e26c096f1946 23 h = h + 1;
elevatorguy 2:e26c096f1946 24 }
elevatorguy 2:e26c096f1946 25 while(time > 60)
elevatorguy 2:e26c096f1946 26 {
elevatorguy 2:e26c096f1946 27 time = time - 60;
elevatorguy 2:e26c096f1946 28 m = m + 1;
elevatorguy 2:e26c096f1946 29 }
elevatorguy 2:e26c096f1946 30 if(h < 10.0)
elevatorguy 2:e26c096f1946 31 {
elevatorguy 2:e26c096f1946 32 pc.putc('0');
elevatorguy 2:e26c096f1946 33 }
elevatorguy 2:e26c096f1946 34 if(h != 0)
elevatorguy 2:e26c096f1946 35 {
elevatorguy 2:e26c096f1946 36 pc.printf(h);
elevatorguy 2:e26c096f1946 37 }
elevatorguy 2:e26c096f1946 38 else
elevatorguy 2:e26c096f1946 39 {
elevatorguy 2:e26c096f1946 40 pc.putc('0');
elevatorguy 2:e26c096f1946 41 }
elevatorguy 2:e26c096f1946 42 pc.putc(':');
elevatorguy 2:e26c096f1946 43 if(m < 10.0)
elevatorguy 2:e26c096f1946 44 {
elevatorguy 2:e26c096f1946 45 pc.putc('0');
elevatorguy 2:e26c096f1946 46 }
elevatorguy 2:e26c096f1946 47 if(m != 0)
elevatorguy 2:e26c096f1946 48 {
elevatorguy 2:e26c096f1946 49 pc.printf(m);
elevatorguy 2:e26c096f1946 50 }
elevatorguy 2:e26c096f1946 51 else
elevatorguy 2:e26c096f1946 52 {
elevatorguy 2:e26c096f1946 53 pc.putc('0');
elevatorguy 2:e26c096f1946 54 }
elevatorguy 2:e26c096f1946 55 pc.putc(':');
elevatorguy 2:e26c096f1946 56 if(time < 10.0)
elevatorguy 2:e26c096f1946 57 {
elevatorguy 2:e26c096f1946 58 pc.putc('0');
elevatorguy 2:e26c096f1946 59 }
elevatorguy 2:e26c096f1946 60 if(time < 1.0)
elevatorguy 2:e26c096f1946 61 {
elevatorguy 2:e26c096f1946 62 pc.putc('0');
elevatorguy 2:e26c096f1946 63 }
elevatorguy 2:e26c096f1946 64 pc.printf(time, 100);
elevatorguy 2:e26c096f1946 65 int timeAsInt = time;
elevatorguy 2:e26c096f1946 66 if((time-timeAsInt)*100 < 10.0)
elevatorguy 2:e26c096f1946 67 {
elevatorguy 2:e26c096f1946 68 pc.putc('0');
elevatorguy 2:e26c096f1946 69 }
elevatorguy 2:e26c096f1946 70 if((time-timeAsInt)*100 < 1.0)
elevatorguy 2:e26c096f1946 71 {
elevatorguy 2:e26c096f1946 72 pc.putc('0');
elevatorguy 2:e26c096f1946 73 }
elevatorguy 2:e26c096f1946 74 pc.printf("\r\n");
elevatorguy 0:5fa5046f2ff5 75 }
elevatorguy 0:5fa5046f2ff5 76 }