Gerrit Pathuis / Mbed 2 deprecated PwmIn_Irq-disable

Based the Library PwmIn by Simon Ford expanded with enable_irq and disable_irq for separate input signals. Program gives no real advantage above the original Library.

Dependencies:   mbed

main.cpp@0:18d069b5f9f4, 2014-01-01 (annotated)

Committer:
GerritPathuis
Date:
Wed Jan 01 12:25:57 2014 +0000
Revision:
0:18d069b5f9f4
Child:
1:4bd14d5374c3
Stolen from PwmIn library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GerritPathuis 0:18d069b5f9f4 1 #include "mbed.h"
GerritPathuis 0:18d069b5f9f4 2 #define NR 20
GerritPathuis 0:18d069b5f9f4 3
GerritPathuis 0:18d069b5f9f4 4 class PwmIn
GerritPathuis 0:18d069b5f9f4 5 {
GerritPathuis 0:18d069b5f9f4 6 public:
GerritPathuis 0:18d069b5f9f4 7 PwmIn(PinName p);
GerritPathuis 0:18d069b5f9f4 8 float period();
GerritPathuis 0:18d069b5f9f4 9 float pulsewidth();
GerritPathuis 0:18d069b5f9f4 10 float dutycycle();
GerritPathuis 0:18d069b5f9f4 11
GerritPathuis 0:18d069b5f9f4 12 protected:
GerritPathuis 0:18d069b5f9f4 13 void rise();
GerritPathuis 0:18d069b5f9f4 14 void fall();
GerritPathuis 0:18d069b5f9f4 15
GerritPathuis 0:18d069b5f9f4 16 InterruptIn _p;
GerritPathuis 0:18d069b5f9f4 17 Timer _t;
GerritPathuis 0:18d069b5f9f4 18 float _pulsewidth, _period;
GerritPathuis 0:18d069b5f9f4 19 };
GerritPathuis 0:18d069b5f9f4 20
GerritPathuis 0:18d069b5f9f4 21 PwmIn::PwmIn(PinName p) : _p(p)
GerritPathuis 0:18d069b5f9f4 22 {
GerritPathuis 0:18d069b5f9f4 23 _p.rise(this, &PwmIn::rise);
GerritPathuis 0:18d069b5f9f4 24 _p.fall(this, &PwmIn::fall);
GerritPathuis 0:18d069b5f9f4 25 _period = 0.0;
GerritPathuis 0:18d069b5f9f4 26 _pulsewidth = 0.0;
GerritPathuis 0:18d069b5f9f4 27 _t.start();
GerritPathuis 0:18d069b5f9f4 28 }
GerritPathuis 0:18d069b5f9f4 29
GerritPathuis 0:18d069b5f9f4 30 PwmIn b(PTA17); // Sensor 1 Y direction
GerritPathuis 0:18d069b5f9f4 31 PwmIn d(PTA16); // Sensor 2 Y direction
GerritPathuis 0:18d069b5f9f4 32 Serial pc(USBTX, USBRX); // tx, rx
GerritPathuis 0:18d069b5f9f4 33
GerritPathuis 0:18d069b5f9f4 34 float PwmIn::period()
GerritPathuis 0:18d069b5f9f4 35 {
GerritPathuis 0:18d069b5f9f4 36 return _period;
GerritPathuis 0:18d069b5f9f4 37 }
GerritPathuis 0:18d069b5f9f4 38
GerritPathuis 0:18d069b5f9f4 39 float PwmIn::pulsewidth()
GerritPathuis 0:18d069b5f9f4 40 {
GerritPathuis 0:18d069b5f9f4 41 return _pulsewidth;
GerritPathuis 0:18d069b5f9f4 42 }
GerritPathuis 0:18d069b5f9f4 43
GerritPathuis 0:18d069b5f9f4 44 float PwmIn::dutycycle()
GerritPathuis 0:18d069b5f9f4 45 {
GerritPathuis 0:18d069b5f9f4 46 return _pulsewidth / _period;
GerritPathuis 0:18d069b5f9f4 47 }
GerritPathuis 0:18d069b5f9f4 48
GerritPathuis 0:18d069b5f9f4 49 void PwmIn::rise()
GerritPathuis 0:18d069b5f9f4 50 {
GerritPathuis 0:18d069b5f9f4 51 _period = _t.read();
GerritPathuis 0:18d069b5f9f4 52 _t.reset();
GerritPathuis 0:18d069b5f9f4 53 }
GerritPathuis 0:18d069b5f9f4 54
GerritPathuis 0:18d069b5f9f4 55 void PwmIn::fall()
GerritPathuis 0:18d069b5f9f4 56 {
GerritPathuis 0:18d069b5f9f4 57 _pulsewidth = _t.read();
GerritPathuis 0:18d069b5f9f4 58 }
GerritPathuis 0:18d069b5f9f4 59
GerritPathuis 0:18d069b5f9f4 60 struct product {
GerritPathuis 0:18d069b5f9f4 61 float pulse;
GerritPathuis 0:18d069b5f9f4 62 float width;
GerritPathuis 0:18d069b5f9f4 63 float duty;
GerritPathuis 0:18d069b5f9f4 64 } acc_a[NR], acc_b[NR], acc_c[NR],acc_d[NR];
GerritPathuis 0:18d069b5f9f4 65
GerritPathuis 0:18d069b5f9f4 66 int main()
GerritPathuis 0:18d069b5f9f4 67 {
GerritPathuis 0:18d069b5f9f4 68 char pbuffer[60]="---";
GerritPathuis 0:18d069b5f9f4 69 int i;
GerritPathuis 0:18d069b5f9f4 70
GerritPathuis 0:18d069b5f9f4 71 while(1) {
GerritPathuis 0:18d069b5f9f4 72 //d.disable();
GerritPathuis 0:18d069b5f9f4 73 for (i=0; i<NR; i++) {
GerritPathuis 0:18d069b5f9f4 74 acc_b[i].duty= b.dutycycle();
GerritPathuis 0:18d069b5f9f4 75 //acc_d[i].duty= d.dutycycle();
GerritPathuis 0:18d069b5f9f4 76 }
GerritPathuis 0:18d069b5f9f4 77
GerritPathuis 0:18d069b5f9f4 78 for (i=0; i<NR; i++) {
GerritPathuis 0:18d069b5f9f4 79 //acc_b[i].duty= b.dutycycle();
GerritPathuis 0:18d069b5f9f4 80 acc_d[i].duty= d.dutycycle();
GerritPathuis 0:18d069b5f9f4 81 }
GerritPathuis 0:18d069b5f9f4 82
GerritPathuis 0:18d069b5f9f4 83 for (i=0; i<NR; i++) {
GerritPathuis 0:18d069b5f9f4 84 sprintf(pbuffer, " b= %f, d= %f \n\r", acc_b[i].duty, acc_d[i].duty);
GerritPathuis 0:18d069b5f9f4 85 pc.puts(pbuffer);
GerritPathuis 0:18d069b5f9f4 86 }
GerritPathuis 0:18d069b5f9f4 87 }
GerritPathuis 0:18d069b5f9f4 88 }