Revision 0:fc05497b2a23, committed 2014-04-06

Comitter:

lelect

Date:

Sun Apr 06 09:12:22 2014 +0000

Commit message:

IRremote class

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IRremote.cpp	Sun Apr 06 09:12:22 2014 +0000
@@ -0,0 +1,124 @@
+#include "mbed.h"
+#include "IRremote.h"
+#include "debug.h"
+IRremote::IRremote(PinName trans,PinName receive,int* point,int length,Serial* device)
+    :_trans(trans)
+    ,_receive(receive)
+{
+    _device=device;
+    _point=point;
+    _length=length;
+    _trans.period_us(26);
+    _trans.pulsewidth_us(13);
+}
+void IRremote::setArray(int* point,int length)
+{
+    _point=point;
+    _length=length;
+}
+void IRremote::showArray()
+{
+    for(int i=0; i<_length; i++) {
+        if(_point[i]==0)break;
+        log_info("%03d:%d\r\n",i,_point[i]);
+    }
+}
+int IRremote::sum(void)
+{
+    if(_length!=0) {
+        if(_sum==0) {
+            for(int i=0; i<_length; i++) {
+                _sum += _point[i];
+            }
+        }
+        return _sum;
+    } else {
+        return -1;
+    }
+}
+float IRremote::average(void)
+{
+    if(_length!=0) {
+        if(_sum==0) {
+            for(int i=0; i<_length; i++) {
+                _sum += _point[i];
+            }
+        }
+        if(_ave==0.0) {
+            _ave=(float)_sum/(float)_length;
+        }
+        return _ave;
+    } else {
+        return -1.0;
+    }
+}
+void IRremote::trans(void (*afunc)(void),void (*bfunc)(void))
+{
+    afunc();
+    _timer.start();
+    _trans = 0;
+    if (_point[0] == 0) {
+        _timer.stop();
+        _trans=0;
+        return;
+    }
+    for (int i = 0; i < _length; i++) {
+        if (_point[i] == 0) {
+            _timer.stop();
+            _trans=0.0f;
+            bfunc();
+            break;
+        }
+        if (i&1) { //odd
+            _timer.reset();
+            while (_timer.read_us() <= _point[i]) {
+                _trans=0.0f;
+            }
+        } else { //even
+            _timer.reset();
+            while (_timer.read_us() <= _point[i]) {
+                _trans=0.5f;
+            }
+        }
+    }
+    _timer.stop();
+    _trans=0;
+}
+void IRremote::receive(void (*afunc)(void),void (*bfunc)(void))
+{
+    afunc();
+    for (int i = 0; i < _length; i++) {
+        _point[i] = 0;
+    }
+    int lastStatus=0;
+    log_info("Common!\r\n");
+    _timer.start();
+    _timer.reset();
+    while (_receive) {
+        if (_timer.read_us()>=5000000) {
+            _timer.stop();
+            log_info("TimeOut..\r\n");
+            return;
+        }
+    }
+    _timer.reset();
+    for (int i =0; i < _length; i++) {
+        while (lastStatus == _receive) {
+            if (_timer.read_us()>=1000000) {
+                log_info("less than %d..Done!\r\n",_length);
+                _timer.stop();
+                bfunc();
+                return;
+            }
+        }
+        _point[i] = _timer.read_us();
+        lastStatus = !lastStatus;
+        _timer.reset();
+    }
+    log_info("over %d...\r\n",_length);
+}
+
+void IRremote::init(void)
+{
+    _length=0;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IRremote.h	Sun Apr 06 09:12:22 2014 +0000
@@ -0,0 +1,32 @@
+#ifndef MBED_IRREMOTE_H
+#define MBED_IRREMOTE_H
+#include "mbed.h"
+#include "debug.h"
+
+class IRremote
+{
+public:
+    IRremote(PinName trans,PinName receive,int* point,int length,Serial* device);
+    void setArray(int* point,int length);
+    void showArray();
+    int sum();
+    float average();
+    int datalength();
+    void trans(void (*afunc)(void),void (*bfunc)(void));
+    void receive(void (*afunc)(void),void (*bfunc)(void));
+protected:
+    void init();
+    int* _point;
+    int _length;
+    int _sum;
+    float _ave;
+    PwmOut _trans;
+    DigitalIn _receive;
+    Timer _timer;
+    Serial* _device;
+    struct {
+        unsigned lastStatus : 1;
+    } flag;
+};
+
+#endif
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