eth_comfort_freebus - Program for decoding radio-signals sent by a ETH-…

Users » charly » Code » eth_comfort_freebus

Karl Zweimüller / Mbed 2 deprecated eth_comfort_freebus

Program for decoding radio-signals sent by a ETH-Window-Shutter-Contact, received with a RFM12B-module. The messages are sent to KNX via a freebus rs-interface. Details see http://mbed.org/users/charly/notebook/connecting-a-radio-window-shutter-contact-to-knx/

Dependencies: TextLCD mbed ConfigFile

rfm12b.cpp@0:b79cb3278583, 2011-04-27 (annotated)

Committer:: charly
Date:: Wed Apr 27 19:02:00 2011 +0000
Revision:: 0:b79cb3278583

Who changed what in which revision?

User	Revision	Line number	New contents of line
charly	0:b79cb3278583	1	#include "mbed.h"
charly	0:b79cb3278583	2	#include "rfm12b.h"
charly	0:b79cb3278583	3	#include "rfm.h"
charly	0:b79cb3278583	4
charly	0:b79cb3278583	5	/*!
charly	0:b79cb3278583	6	* \file rfm12b.cpp
charly	0:b79cb3278583	7	* \brief class for rfm2b in rawmode - only receive part implemented
charly	0:b79cb3278583	8	* \author Karl Zweimüller based on code from WED 6.9.2009
charly	0:b79cb3278583	9	*/
charly	0:b79cb3278583	10
charly	0:b79cb3278583	11
charly	0:b79cb3278583	12	/** Class rfm12b for RFM12B transceiver module
charly	0:b79cb3278583	13	http://www.hoperf.com/rf_fsk/rfm12b.htm
charly	0:b79cb3278583	14	*/
charly	0:b79cb3278583	15
charly	0:b79cb3278583	16	/** rfm12b object
charly	0:b79cb3278583	17	*/
charly	0:b79cb3278583	18	rfm12b::rfm12b(PinName mosi, PinName miso, PinName sclk, PinName nsel, PinName rxdata) {
charly	0:b79cb3278583	19
charly	0:b79cb3278583	20	rfm12b_spi = new SPI(mosi, miso, sclk); // mosi, miso, sclk
charly	0:b79cb3278583	21	cs = new DigitalOut(nsel); // nsel for chipselect
charly	0:b79cb3278583	22	m_pinRXData = new InterruptIn(rxdata); // rxData- generates interrupts
charly	0:b79cb3278583	23
charly	0:b79cb3278583	24	init_spi(); // init the spi-device
charly	0:b79cb3278583	25	}
charly	0:b79cb3278583	26
charly	0:b79cb3278583	27	/** init the spi-communication
charly	0:b79cb3278583	28	*/
charly	0:b79cb3278583	29	void rfm12b::init_spi() {
charly	0:b79cb3278583	30	// Setup the spi for 16 bit data : 1RW-bit 7 adressbit, 8 databit
charly	0:b79cb3278583	31	// second edge capture, with a 5MHz clock rate
charly	0:b79cb3278583	32	rfm12b_spi->format(16,0);
charly	0:b79cb3278583	33	rfm12b_spi->frequency(5000000);
charly	0:b79cb3278583	34	}
charly	0:b79cb3278583	35
charly	0:b79cb3278583	36	///////////////////////////////////////////////////////////////////////////////
charly	0:b79cb3278583	37	//
charly	0:b79cb3278583	38	// Initialise RF module
charly	0:b79cb3278583	39	// This are parameters for ETH Comfort by ELV
charly	0:b79cb3278583	40	///////////////////////////////////////////////////////////////////////////////
charly	0:b79cb3278583	41	void rfm12b::RFM_init(void) {
charly	0:b79cb3278583	42
charly	0:b79cb3278583	43	// 0. Init the SPI backend
charly	0:b79cb3278583	44	//RFM_TESTPIN_INIT;
charly	0:b79cb3278583	45
charly	0:b79cb3278583	46	//RFM_READ_STATUS();
charly	0:b79cb3278583	47
charly	0:b79cb3278583	48	// 1. Configuration Setting Command
charly	0:b79cb3278583	49	RFM_SPI_16(
charly	0:b79cb3278583	50	//RFM_CONFIG_EL \|
charly	0:b79cb3278583	51	//RFM_CONFIG_EF \|
charly	0:b79cb3278583	52	RFM_CONFIG_BAND_868 \|
charly	0:b79cb3278583	53	RFM_CONFIG_X_11_0pf
charly	0:b79cb3278583	54	);
charly	0:b79cb3278583	55
charly	0:b79cb3278583	56	// 2. Power Management Command
charly	0:b79cb3278583	57	//RFM_SPI_16(
charly	0:b79cb3278583	58	// RFM_POWER_MANAGEMENT // switch all off
charly	0:b79cb3278583	59	// );
charly	0:b79cb3278583	60
charly	0:b79cb3278583	61	// 3. Frequency Setting Command
charly	0:b79cb3278583	62	RFM_SPI_16(
charly	0:b79cb3278583	63	RFM_FREQUENCY \|
charly	0:b79cb3278583	64	RFM_FREQ_868Band(868.30)
charly	0:b79cb3278583	65	);
charly	0:b79cb3278583	66
charly	0:b79cb3278583	67	// 4. Data Rate Command
charly	0:b79cb3278583	68	RFM_SPI_16(RFM_DATA_RATE_9600);
charly	0:b79cb3278583	69
charly	0:b79cb3278583	70	// 5. Receiver Control Command
charly	0:b79cb3278583	71	RFM_SPI_16(
charly	0:b79cb3278583	72	RFM_RX_CONTROL_P20_VDI \|
charly	0:b79cb3278583	73	RFM_RX_CONTROL_VDI_FAST \|
charly	0:b79cb3278583	74	//RFM_RX_CONTROL_BW(RFM_BAUD_RATE) \|
charly	0:b79cb3278583	75	RFM_RX_CONTROL_BW_134 \|
charly	0:b79cb3278583	76	RFM_RX_CONTROL_GAIN_0 \|
charly	0:b79cb3278583	77	RFM_RX_CONTROL_RSSI_73
charly	0:b79cb3278583	78	);
charly	0:b79cb3278583	79
charly	0:b79cb3278583	80	// 6. Data Filter Command
charly	0:b79cb3278583	81	RFM_SPI_16(
charly	0:b79cb3278583	82	//RFM_DATA_FILTER_AL \|
charly	0:b79cb3278583	83	//RFM_DATA_FILTER_ML \|
charly	0:b79cb3278583	84	//RFM_DATA_FILTER_DQD(3)
charly	0:b79cb3278583	85	RFM_DATA_FILTER_ANALOG
charly	0:b79cb3278583	86	);
charly	0:b79cb3278583	87
charly	0:b79cb3278583	88	// 7. FIFO and Reset Mode Command
charly	0:b79cb3278583	89	RFM_SPI_16(
charly	0:b79cb3278583	90	RFM_FIFO_IT(8) \|
charly	0:b79cb3278583	91	RFM_FIFO_DR
charly	0:b79cb3278583	92	);
charly	0:b79cb3278583	93
charly	0:b79cb3278583	94	// 8. Receiver FIFO Read
charly	0:b79cb3278583	95
charly	0:b79cb3278583	96	// 9. AFC Command
charly	0:b79cb3278583	97	RFM_SPI_16(
charly	0:b79cb3278583	98	RFM_AFC_AUTO_VDI \|
charly	0:b79cb3278583	99	RFM_AFC_RANGE_LIMIT_7_8 \|
charly	0:b79cb3278583	100	RFM_AFC_EN \|
charly	0:b79cb3278583	101	RFM_AFC_OE \|
charly	0:b79cb3278583	102	RFM_AFC_FI
charly	0:b79cb3278583	103	);
charly	0:b79cb3278583	104
charly	0:b79cb3278583	105	// 10. TX Configuration Control Command
charly	0:b79cb3278583	106	RFM_SPI_16(
charly	0:b79cb3278583	107	RFM_TX_CONTROL_MOD_30 \|
charly	0:b79cb3278583	108	RFM_TX_CONTROL_POW_0
charly	0:b79cb3278583	109	);
charly	0:b79cb3278583	110
charly	0:b79cb3278583	111	// 11. Transmitter Register Write Command
charly	0:b79cb3278583	112
charly	0:b79cb3278583	113	// 12. Wake-Up Timer Command
charly	0:b79cb3278583	114
charly	0:b79cb3278583	115	// 13. Low Duty-Cycle Command
charly	0:b79cb3278583	116
charly	0:b79cb3278583	117	// 14. Low Battery Detector Command
charly	0:b79cb3278583	118
charly	0:b79cb3278583	119	//RFM_SPI_16(
charly	0:b79cb3278583	120	// RFM_LOW_BATT_DETECT \|
charly	0:b79cb3278583	121	// 3 // 2.2V + v * 0.1V
charly	0:b79cb3278583	122	// );
charly	0:b79cb3278583	123
charly	0:b79cb3278583	124	// 15. Status Read Command
charly	0:b79cb3278583	125	//RFM_SPI_16(RFM_TX_ON());
charly	0:b79cb3278583	126	RFM_SPI_16(RFM_RX_ON());
charly	0:b79cb3278583	127
charly	0:b79cb3278583	128	}
charly	0:b79cb3278583	129
charly	0:b79cb3278583	130	///////////////////////////////////////////////////////////////////////////////
charly	0:b79cb3278583	131
charly	0:b79cb3278583	132
charly	0:b79cb3278583	133
charly	0:b79cb3278583	134	/** write and read 16 bit to device
charly	0:b79cb3278583	135	*/
charly	0:b79cb3278583	136	uint16_t rfm12b::rfm_spi16(uint16_t outval) {
charly	0:b79cb3278583	137
charly	0:b79cb3278583	138	uint16_t readval;
charly	0:b79cb3278583	139	// Select the device by seting chip select low
charly	0:b79cb3278583	140	cs->write(0);
charly	0:b79cb3278583	141	wait_ms(1); // wait before going on
charly	0:b79cb3278583	142	//write and read
charly	0:b79cb3278583	143	readval = rfm12b_spi->write(outval);
charly	0:b79cb3278583	144	// Deselect the device
charly	0:b79cb3278583	145	cs->write(1);
charly	0:b79cb3278583	146	wait_ms(1); // wait before going on
charly	0:b79cb3278583	147	return(readval);
charly	0:b79cb3278583	148	}
charly	0:b79cb3278583	149
charly	0:b79cb3278583	150

Repository toolbox

Export to desktop IDE

Build repository

Repository details

Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	27 Apr 2011
Imports:	15
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	3
Followers:	3

rfm12b.cpp@0:b79cb3278583, 2011-04-27 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning