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Revision 1:2dd7853c911a, committed 2013-10-01
- Comitter:
- vsluiter
- Date:
- Tue Oct 01 21:47:15 2013 +0000
- Parent:
- 0:c90b36abcbf8
- Child:
- 2:0998a8fd7727
- Child:
- 3:dcb7bdc73882
- Commit message:
- Updated documentation
Changed in this revision
| encoder.h | Show annotated file Show diff for this revision Revisions of this file |
--- a/encoder.h Wed Sep 25 14:55:08 2013 +0000
+++ b/encoder.h Tue Oct 01 21:47:15 2013 +0000
@@ -2,13 +2,42 @@
#define _ENCODER_H_
#include "mbed.h"
-
+/** Encoder class.
+ * Used to read out incremental position encoder. Decodes position in X2 configuration.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "Encoder.h"
+ *
+ * Encoder motor1(PTD0,PTC9);
+ * Serial pc(USBTX,USBRX);
+ * pc.baud(115200);
+ * while(1) {
+ * wait(0.2);
+ * pc.printf("pos: %d, speed %f \r\n",motor1.getPosition(), motor1.getSpeed());
+ * }
+ * @endcode
+ */
class Encoder
{
public:
+ /** Create Encoder instance
+ @param int_a Pin to be used as InterruptIn! Be careful, as not all pins on all platforms may be used as InterruptIn.
+ @param int_b second encoder pin, used as DigitalIn. Can be any DigitalIn pin, not necessarily on InterruptIn location
+ */
Encoder(PinName int_a, PinName int_b);
+ /** Request position
+ @returns current position in encoder counts
+ */
int32_t getPosition(){return m_position;}
+ /** Overwrite position
+ @param pos position to be written
+ */
void setPosition(int32_t pos){m_position = pos;}
+ /** Request speed
+ @returns current speed
+ */
float getSpeed(){return m_speed;}
private:
void encoderFalling(void);
