Oskar Weigl / RF12B

Working lib for qq v2

Dependents:   Sonar_Beacon

RF12B.h@0:048b717be6c0, 2011-03-11 (annotated)

Committer:
madcowswe
Date:
Fri Mar 11 18:02:05 2011 +0000
Revision:
0:048b717be6c0
Child:
1:09e016eea608
Made reading asynchronous, and added a block read function

Who changed what in which revision?

UserRevisionLine numberNew contents of line
madcowswe 0:048b717be6c0 1 #ifndef _RF12B_H
madcowswe 0:048b717be6c0 2 #define _RF12B_H
madcowswe 0:048b717be6c0 3
madcowswe 0:048b717be6c0 4 #include "mbed.h"
madcowswe 0:048b717be6c0 5 #include <queue>
madcowswe 0:048b717be6c0 6
madcowswe 0:048b717be6c0 7 #define PACKET_LEN 16
madcowswe 0:048b717be6c0 8
madcowswe 0:048b717be6c0 9 enum rfmode_t{RX, TX};
madcowswe 0:048b717be6c0 10
madcowswe 0:048b717be6c0 11 class RF12B {
madcowswe 0:048b717be6c0 12 public:
madcowswe 0:048b717be6c0 13 /* Constructor */
madcowswe 0:048b717be6c0 14 RF12B(PinName SDI,
madcowswe 0:048b717be6c0 15 PinName SDO,
madcowswe 0:048b717be6c0 16 PinName SCK,
madcowswe 0:048b717be6c0 17 PinName NCS,
madcowswe 0:048b717be6c0 18 PinName NIRQ);
madcowswe 0:048b717be6c0 19
madcowswe 0:048b717be6c0 20
madcowswe 0:048b717be6c0 21
madcowswe 0:048b717be6c0 22 /* Reads a packet of data. Returns false if read failed. Use available() to check how much space to allocate for buffer */
madcowswe 0:048b717be6c0 23 bool read(unsigned char* data, unsigned int size);
madcowswe 0:048b717be6c0 24
madcowswe 0:048b717be6c0 25 /* Reads a byte of data from the receive buffer
madcowswe 0:048b717be6c0 26 Returns 0xFF if there is no data */
madcowswe 0:048b717be6c0 27 unsigned char read();
madcowswe 0:048b717be6c0 28
madcowswe 0:048b717be6c0 29 /* Transmits a packet of data */
madcowswe 0:048b717be6c0 30 void write(unsigned char* data, unsigned char length);
madcowswe 0:048b717be6c0 31
madcowswe 0:048b717be6c0 32 /* Transmits a 1-byte packet of data */
madcowswe 0:048b717be6c0 33 void write(unsigned char data);
madcowswe 0:048b717be6c0 34
madcowswe 0:048b717be6c0 35 /* Returns the packet length if data is available in the receive buffer, 0 otherwise*/
madcowswe 0:048b717be6c0 36 unsigned int available();
madcowswe 0:048b717be6c0 37
madcowswe 0:048b717be6c0 38 protected:
madcowswe 0:048b717be6c0 39 /* Receive FIFO buffer */
madcowswe 0:048b717be6c0 40 queue<unsigned char> fifo;
madcowswe 0:048b717be6c0 41
madcowswe 0:048b717be6c0 42 /* SPI module */
madcowswe 0:048b717be6c0 43 SPI spi;
madcowswe 0:048b717be6c0 44
madcowswe 0:048b717be6c0 45 /* Other digital pins */
madcowswe 0:048b717be6c0 46 DigitalOut NCS;
madcowswe 0:048b717be6c0 47 InterruptIn NIRQ;
madcowswe 0:048b717be6c0 48 DigitalIn NIRQ_in;
madcowswe 0:048b717be6c0 49 DigitalOut rfled;
madcowswe 0:048b717be6c0 50
madcowswe 0:048b717be6c0 51 /* Initialises the RF12B module */
madcowswe 0:048b717be6c0 52 void init();
madcowswe 0:048b717be6c0 53
madcowswe 0:048b717be6c0 54 /* Write a command to the RF Module */
madcowswe 0:048b717be6c0 55 unsigned int writeCmd(unsigned int cmd);
madcowswe 0:048b717be6c0 56
madcowswe 0:048b717be6c0 57 /* Sends a byte of data across RF */
madcowswe 0:048b717be6c0 58 void send(unsigned char data);
madcowswe 0:048b717be6c0 59
madcowswe 0:048b717be6c0 60 /* Switch module between receive and transmit modes */
madcowswe 0:048b717be6c0 61 void changeMode(rfmode_t mode);
madcowswe 0:048b717be6c0 62
madcowswe 0:048b717be6c0 63 /* Interrupt routine for data reception */
madcowswe 0:048b717be6c0 64 void rxISR();
madcowswe 0:048b717be6c0 65
madcowswe 0:048b717be6c0 66 /* Tell the RF Module this packet is received and wait for the next */
madcowswe 0:048b717be6c0 67 void resetRX();
madcowswe 0:048b717be6c0 68
madcowswe 0:048b717be6c0 69 /* Return the RF Module Status word */
madcowswe 0:048b717be6c0 70 unsigned int status();
madcowswe 0:048b717be6c0 71
madcowswe 0:048b717be6c0 72 /* Calculate CRC8 */
madcowswe 0:048b717be6c0 73 unsigned char crc8(unsigned char crc, unsigned char data);
madcowswe 0:048b717be6c0 74 };
madcowswe 0:048b717be6c0 75
madcowswe 0:048b717be6c0 76 #endif /* _RF12B_H */