Diff: rfm12b.h

Revision:

0:b79cb3278583

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rfm12b.h	Wed Apr 27 19:02:00 2011 +0000
@@ -0,0 +1,79 @@
+#ifndef rfm12B_H
+#define rfm12B_H
+
+#include <mbed.h>
+
+/*!
+ * \file       rfm12b.h
+ * \brief      class for rfm2b in rawmode - only receive part implemented
+ * \author     Karl Zweimüller based on code from WED 6.9.2009
+ */
+
+typedef unsigned char Byte;    // used to be uint8_t : something a byte wide, whatever ....
+
+/** This Class handles a rfm12b transceiver
+ * see http://www.hoperf.com/rf_fsk/rfm12b.htm
+ *
+*/
+class rfm12b {
+public:
+    /** Create a rfm12b object
+    *
+    * @param mosi SPI-Interface. One of the 2 PSI-Interfaces of mbed. Pin p5 or p11
+    * @param miso SPI-Interface. One of the 2 PSI-Interfaces of mbed. Pin p6 or p12
+    * @param sclk SPI-Interface. One of the 2 PSI-Interfaces of mbed. Pin p7 or p13
+    * @param nsel Chip-Select.   A Digial Output of mbed
+    * @param rxdata  Data-Pin for received data. A DigitalIn of mbed
+    */
+    rfm12b(PinName mosi, PinName miso, PinName sclk, PinName nsel, PinName rxdata);
+
+    /** init the spi-interface
+    */
+    void init_spi();
+
+    /** initialize the device
+    */
+    void RFM_init(void);
+
+    /** write and read 16 bit
+    */
+    uint16_t rfm_spi16(uint16_t outval);
+
+    /** attach a function to be called when the data-pin changes from 0->1 and from 1->0
+    * this function has to do all the decoding
+    * keep this function short, as no interrrupts can occour within
+    *
+    * @param fptr Pointer to callback-function
+    */
+    void attachISR(void (*fptr)(void)) {
+        m_pinRXData->fall(fptr);
+        m_pinRXData->rise(fptr);
+    }
+
+    template<typename T>
+    /** attach an object member function to be called when the data-pin changes from 0->1 and from 1->0
+    *
+    * @param tptr pointer to object
+    * @param mprt pointer ro member function
+    *
+    */
+    void attachISR(T* tptr, void (T::*mptr)(void)) {
+        if ((mptr != NULL) && (tptr != NULL)) {
+            m_pinRXData->fall(tptr, mptr);
+            m_pinRXData->rise(tptr, mptr);
+        }
+    }
+
+
+
+private:
+
+
+    DigitalOut    *cs;          //chipselect
+    InterruptIn   *m_pinRXData; //rx data pin
+    SPI           *rfm12b_spi;  //spi-interface
+
+
+};
+
+#endif