Karl Zweimüller
/
eth_comfort_test
Programm for decoding radio-signals sent by a ETH-Window-Shutter-Contact, received with a RFM12B-module
rfm12b.h@0:96794c9fc5a3, 2011-03-02 (annotated)
- Committer:
- charly
- Date:
- Wed Mar 02 20:46:57 2011 +0000
- Revision:
- 0:96794c9fc5a3
- Child:
- 1:fc72e0bdb693
Initial pre-beta version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
charly | 0:96794c9fc5a3 | 1 | #ifndef rfm12B_H |
charly | 0:96794c9fc5a3 | 2 | #define rfm12B_H |
charly | 0:96794c9fc5a3 | 3 | |
charly | 0:96794c9fc5a3 | 4 | #include <mbed.h> |
charly | 0:96794c9fc5a3 | 5 | |
charly | 0:96794c9fc5a3 | 6 | typedef unsigned char Byte; // used to be uint8_t : something a byte wide, whatever .... |
charly | 0:96794c9fc5a3 | 7 | |
charly | 0:96794c9fc5a3 | 8 | /** This Class handles a rfm12b transceiver |
charly | 0:96794c9fc5a3 | 9 | * see http://www.hoperf.com/rf_fsk/rfm12b.htm |
charly | 0:96794c9fc5a3 | 10 | * |
charly | 0:96794c9fc5a3 | 11 | */ |
charly | 0:96794c9fc5a3 | 12 | class rfm12b |
charly | 0:96794c9fc5a3 | 13 | { |
charly | 0:96794c9fc5a3 | 14 | public: |
charly | 0:96794c9fc5a3 | 15 | /** Create a rfm12b object |
charly | 0:96794c9fc5a3 | 16 | * |
charly | 0:96794c9fc5a3 | 17 | * @param mosi SPI-Interface. One of the 2 PSI-Interfaces of mbed. Pin p5 or p11 |
charly | 0:96794c9fc5a3 | 18 | * @param miso SPI-Interface. One of the 2 PSI-Interfaces of mbed. Pin p6 or p12 |
charly | 0:96794c9fc5a3 | 19 | * @param sclk SPI-Interface. One of the 2 PSI-Interfaces of mbed. Pin p7 or p13 |
charly | 0:96794c9fc5a3 | 20 | * @param nsel Chip-Select. A Digial Output of mbed |
charly | 0:96794c9fc5a3 | 21 | * @param rxdata Data-Pin for received data. A DigitalIn of mbed |
charly | 0:96794c9fc5a3 | 22 | */ |
charly | 0:96794c9fc5a3 | 23 | rfm12b(PinName mosi, PinName miso, PinName sclk, PinName nsel, PinName rxdata); |
charly | 0:96794c9fc5a3 | 24 | |
charly | 0:96794c9fc5a3 | 25 | /** init the spi-interface |
charly | 0:96794c9fc5a3 | 26 | */ |
charly | 0:96794c9fc5a3 | 27 | void init_spi(); |
charly | 0:96794c9fc5a3 | 28 | |
charly | 0:96794c9fc5a3 | 29 | /** initialize the device |
charly | 0:96794c9fc5a3 | 30 | */ |
charly | 0:96794c9fc5a3 | 31 | void RFM_init(void); |
charly | 0:96794c9fc5a3 | 32 | |
charly | 0:96794c9fc5a3 | 33 | /** write and read 16 bit |
charly | 0:96794c9fc5a3 | 34 | */ |
charly | 0:96794c9fc5a3 | 35 | uint16_t rfm_spi16(uint16_t outval); |
charly | 0:96794c9fc5a3 | 36 | |
charly | 0:96794c9fc5a3 | 37 | /** attach a function to be called when the data-pin changes from 0->1 and from 1->0 |
charly | 0:96794c9fc5a3 | 38 | * this function has to do all the decoding |
charly | 0:96794c9fc5a3 | 39 | * keep this function short, as no interrrupts can occour within |
charly | 0:96794c9fc5a3 | 40 | * |
charly | 0:96794c9fc5a3 | 41 | * @param fptr Pointer to callback-function |
charly | 0:96794c9fc5a3 | 42 | */ |
charly | 0:96794c9fc5a3 | 43 | void attachISR(void (*fptr)(void)) { |
charly | 0:96794c9fc5a3 | 44 | m_pinRXData->fall(fptr); |
charly | 0:96794c9fc5a3 | 45 | m_pinRXData->rise(fptr); |
charly | 0:96794c9fc5a3 | 46 | } |
charly | 0:96794c9fc5a3 | 47 | |
charly | 0:96794c9fc5a3 | 48 | |
charly | 0:96794c9fc5a3 | 49 | private: |
charly | 0:96794c9fc5a3 | 50 | |
charly | 0:96794c9fc5a3 | 51 | |
charly | 0:96794c9fc5a3 | 52 | DigitalOut *cs; //chipselect |
charly | 0:96794c9fc5a3 | 53 | InterruptIn *m_pinRXData; //rx data pin |
charly | 0:96794c9fc5a3 | 54 | SPI *rfm12b_spi; //spi-interface |
charly | 0:96794c9fc5a3 | 55 | |
charly | 0:96794c9fc5a3 | 56 | |
charly | 0:96794c9fc5a3 | 57 | }; |
charly | 0:96794c9fc5a3 | 58 | |
charly | 0:96794c9fc5a3 | 59 | #endif |