Transmitter code for quadcopter

Dependencies:   mbed

Revision:
0:e6426242cacc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RF12B/RF_defs.h	Wed Dec 07 12:37:01 2011 +0000
@@ -0,0 +1,478 @@
+/*
+ *  Open HR20
+ *
+ *  target:     ATmega169 @ 4 MHz in Honnywell Rondostat HR20E
+ *
+ *  compiler:   WinAVR-20071221
+ *              avr-libc 1.6.0
+ *              GCC 4.2.2
+ *
+ *  copyright:  2008 Dario Carluccio (hr20-at-carluccio-dot-de)
+ *              2008 Jiri Dobry (jdobry-at-centrum-dot-cz)
+ *              2008 Mario Fischer (MarioFischer-at-gmx-dot-net)
+ *              2007 Michael Smola (Michael-dot-Smola-at-gmx-dot-net)
+ *
+ *  license:    This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU Library General Public
+ *              License as published by the Free Software Foundation; either
+ *              version 2 of the License, or (at your option) any later version.
+ *
+ *              This program is distributed in the hope that it will be useful,
+ *              but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *              MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *              GNU General Public License for more details.
+ *
+ *              You should have received a copy of the GNU General Public License
+ *              along with this program. If not, see http:*www.gnu.org/licenses
+ */
+
+/*
+ * \file       rfm.h
+ * \brief      functions to control the RFM12 Radio Transceiver Module
+ * \author     Mario Fischer <MarioFischer-at-gmx-dot-net>; Michael Smola <Michael-dot-Smola-at-gmx-dot-net>
+ * \date       $Date: 2010/04/17 17:57:02 $
+ * $Rev: 260 $
+ */
+
+
+//#pragma once // multi-iclude prevention. gcc knows this pragma
+#ifndef rfm_H
+#define rfm_H
+
+
+#define RFM_SPI_16(OUTVAL)            rfm_spi16(OUTVAL) //<! a function that gets a uint16_t (clocked out value) and returns a uint16_t (clocked in value)
+
+#define RFM_CLK_OUTPUT 0
+
+/*
+#define RFM_TESTPIN_INIT
+#define RFM_TESTPIN_ON
+#define RFM_TESTPIN_OFF
+#define RFM_TESTPIN_TOG
+
+#define RFM_CONFIG_DISABLE            0x00 //<! RFM_CONFIG_*** are combinable flags, what the RFM shold do
+#define RFM_CONFIG_BROADCASTSTATUS    0x01 //<! Flag that enables the HR20's status broadcast every minute
+
+#define RFM_CONFIG_ENABLEALL        0xff
+*/
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// RFM status bits
+//
+///////////////////////////////////////////////////////////////////////////////
+
+// Interrupt bits, latched ////////////////////////////////////////////////////
+
+#define RFM_STATUS_FFIT 0x8000 // RX FIFO reached the progr. number of bits
+                               // Cleared by any FIFO read method
+
+#define RFM_STATUS_RGIT 0x8000 // TX register is ready to receive
+                               // Cleared by TX write
+
+#define RFM_STATUS_POR  0x4000 // Power On reset
+                               // Cleared by read status
+
+#define RFM_STATUS_RGUR 0x2000 // TX register underrun, register over write
+                               // Cleared by read status
+
+#define RFM_STATUS_FFOV 0x2000 // RX FIFO overflow
+                               // Cleared by read status
+
+#define RFM_STATUS_WKUP 0x1000 // Wake up timer overflow
+                               // Cleared by read status
+
+#define RFM_STATUS_EXT  0x0800 // Interupt changed to low
+                               // Cleared by read status
+
+#define RFM_STATUS_LBD  0x0400 // Low battery detect
+
+// Status bits ////////////////////////////////////////////////////////////////
+
+#define RFM_STATUS_FFEM 0x0200 // FIFO is empty
+#define RFM_STATUS_ATS  0x0100 // TX mode: Strong enough RF signal
+#define RFM_STATUS_RSSI 0x0100 // RX mode: signal strength above programmed limit
+#define RFM_STATUS_DQD  0x0080 // Data Quality detector output
+#define RFM_STATUS_CRL  0x0040 // Clock recovery lock
+#define RFM_STATUS_ATGL 0x0020 // Toggling in each AFC cycle
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 1. Configuration Setting Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_CONFIG               0x8000
+
+#define RFM_CONFIG_EL            0x8080 // Enable TX Register
+#define RFM_CONFIG_EF            0x8040 // Enable RX FIFO buffer
+#define RFM_CONFIG_BAND_315      0x8000 // Frequency band
+#define RFM_CONFIG_BAND_433      0x8010
+#define RFM_CONFIG_BAND_868      0x8020
+#define RFM_CONFIG_BAND_915      0x8030
+#define RFM_CONFIG_X_8_5pf       0x8000 // Crystal Load Capacitor
+#define RFM_CONFIG_X_9_0pf       0x8001
+#define RFM_CONFIG_X_9_5pf       0x8002
+#define RFM_CONFIG_X_10_0pf      0x8003
+#define RFM_CONFIG_X_10_5pf      0x8004
+#define RFM_CONFIG_X_11_0pf      0x8005
+#define RFM_CONFIG_X_11_5pf      0x8006
+#define RFM_CONFIG_X_12_0pf      0x8007
+#define RFM_CONFIG_X_12_5pf      0x8008
+#define RFM_CONFIG_X_13_0pf      0x8009
+#define RFM_CONFIG_X_13_5pf      0x800A
+#define RFM_CONFIG_X_14_0pf      0x800B
+#define RFM_CONFIG_X_14_5pf      0x800C
+#define RFM_CONFIG_X_15_0pf      0x800D
+#define RFM_CONFIG_X_15_5pf      0x800E
+#define RFM_CONFIG_X_16_0pf      0x800F
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 2. Power Management Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_POWER_MANAGEMENT     0x8200
+
+#define RFM_POWER_MANAGEMENT_ER  0x8280 // Enable receiver
+#define RFM_POWER_MANAGEMENT_EBB 0x8240 // Enable base band block
+#define RFM_POWER_MANAGEMENT_ET  0x8220 // Enable transmitter
+#define RFM_POWER_MANAGEMENT_ES  0x8210 // Enable synthesizer
+#define RFM_POWER_MANAGEMENT_EX  0x8208 // Enable crystal oscillator
+#define RFM_POWER_MANAGEMENT_EB  0x8204 // Enable low battery detector
+#define RFM_POWER_MANAGEMENT_EW  0x8202 // Enable wake-up timer
+#define RFM_POWER_MANAGEMENT_DC  0x8201 // Disable clock output of CLK pin
+
+#ifndef RFM_CLK_OUTPUT
+    #error RFM_CLK_OUTPUT must be defined to 0 or 1
+#endif
+#if RFM_CLK_OUTPUT
+    #define RFM_TX_ON_PRE() RFM_SPI_16( \
+                                RFM_POWER_MANAGEMENT_ES | \
+                                RFM_POWER_MANAGEMENT_EX )
+    #define RFM_TX_ON()     RFM_SPI_16( \
+                                RFM_POWER_MANAGEMENT_ET | \
+                                RFM_POWER_MANAGEMENT_ES | \
+                                RFM_POWER_MANAGEMENT_EX )
+    #define RFM_RX_ON()     RFM_SPI_16( \
+                                RFM_POWER_MANAGEMENT_ER | \
+                                RFM_POWER_MANAGEMENT_EBB | \
+                                RFM_POWER_MANAGEMENT_ES | \
+                                RFM_POWER_MANAGEMENT_EX )
+    #define RFM_OFF()       RFM_SPI_16( \
+                                RFM_POWER_MANAGEMENT_EX )
+#else
+    #define RFM_TX_ON_PRE() RFM_SPI_16( \
+                                RFM_POWER_MANAGEMENT_DC | \
+                                RFM_POWER_MANAGEMENT_ES | \
+                                RFM_POWER_MANAGEMENT_EX )
+    #define RFM_TX_ON()     RFM_SPI_16( \
+                                RFM_POWER_MANAGEMENT_DC | \
+                                RFM_POWER_MANAGEMENT_ET | \
+                                RFM_POWER_MANAGEMENT_ES | \
+                                RFM_POWER_MANAGEMENT_EX )
+    #define RFM_RX_ON()     RFM_SPI_16( \
+                                RFM_POWER_MANAGEMENT_DC  | \
+                                RFM_POWER_MANAGEMENT_ER | \
+                                RFM_POWER_MANAGEMENT_EBB | \
+                                RFM_POWER_MANAGEMENT_ES | \
+                                RFM_POWER_MANAGEMENT_EX )
+    #define RFM_OFF()       RFM_SPI_16(RFM_POWER_MANAGEMENT_DC)
+#endif
+///////////////////////////////////////////////////////////////////////////////
+//
+// 3. Frequency Setting Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_FREQUENCY            0xA000
+
+#define RFM_FREQ_315Band(v) (uint16_t)((v/10.0-31)*4000)
+#define RFM_FREQ_433Band(v) (uint16_t)((v/10.0-43)*4000)
+#define RFM_FREQ_868Band(v) (uint16_t)((v/20.0-43)*4000)
+#define RFM_FREQ_915Band(v) (uint16_t)((v/30.0-30)*4000)
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 4. Data Rate Command
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#define RFM_BAUD_RATE            9600
+
+#define RFM_DATA_RATE            0xC600
+
+#define RFM_DATA_RATE_CS         0xC680
+#define RFM_DATA_RATE_4800       0xC647
+#define RFM_DATA_RATE_9600       0xC623
+#define RFM_DATA_RATE_19200      0xC611
+#define RFM_DATA_RATE_38400      0xC608
+#define RFM_DATA_RATE_57600      0xC605
+
+#define RFM_SET_DATARATE(baud)        ( ((baud)<5400) ? (RFM_DATA_RATE_CS|((43104/(baud))-1)) : (RFM_DATA_RATE|((344828UL/(baud))-1)) )
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 5. Receiver Control Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_RX_CONTROL           0x9000
+
+#define RFM_RX_CONTROL_P20_INT   0x9000 // Pin20 = ExternalInt
+#define RFM_RX_CONTROL_P20_VDI   0x9400 // Pin20 = VDI out
+
+#define RFM_RX_CONTROL_VDI_FAST  0x9000 // fast   VDI Response time
+#define RFM_RX_CONTROL_VDI_MED   0x9100 // medium
+#define RFM_RX_CONTROL_VDI_SLOW  0x9200 // slow
+#define RFM_RX_CONTROL_VDI_ON    0x9300 // Always on
+
+#define RFM_RX_CONTROL_BW_400    0x9020 // bandwidth 400kHz
+#define RFM_RX_CONTROL_BW_340    0x9040 // bandwidth 340kHz
+#define RFM_RX_CONTROL_BW_270    0x9060 // bandwidth 270kHz
+#define RFM_RX_CONTROL_BW_200    0x9080 // bandwidth 200kHz
+#define RFM_RX_CONTROL_BW_134    0x90A0 // bandwidth 134kHz
+#define RFM_RX_CONTROL_BW_67     0x90C0 // bandwidth 67kHz
+
+#define RFM_RX_CONTROL_GAIN_0    0x9000 // LNA gain  0db
+#define RFM_RX_CONTROL_GAIN_6    0x9008 // LNA gain -6db
+#define RFM_RX_CONTROL_GAIN_14   0x9010 // LNA gain -14db
+#define RFM_RX_CONTROL_GAIN_20   0x9018 // LNA gain -20db
+
+#define RFM_RX_CONTROL_RSSI_103  0x9000 // DRSSI threshold -103dbm
+#define RFM_RX_CONTROL_RSSI_97   0x9001 // DRSSI threshold -97dbm
+#define RFM_RX_CONTROL_RSSI_91   0x9002 // DRSSI threshold -91dbm
+#define RFM_RX_CONTROL_RSSI_85   0x9003 // DRSSI threshold -85dbm
+#define RFM_RX_CONTROL_RSSI_79   0x9004 // DRSSI threshold -79dbm
+#define RFM_RX_CONTROL_RSSI_73   0x9005 // DRSSI threshold -73dbm
+//#define RFM_RX_CONTROL_RSSI_67   0x9006 // DRSSI threshold -67dbm // RF12B reserved
+//#define RFM_RX_CONTROL_RSSI_61   0x9007 // DRSSI threshold -61dbm // RF12B reserved
+
+#define RFM_RX_CONTROL_BW(baud)        (((baud)<8000) ? \
+                                    RFM_RX_CONTROL_BW_67 : \
+                                    ( \
+                                        ((baud)<30000) ? \
+                                        RFM_RX_CONTROL_BW_134 : \
+                                        RFM_RX_CONTROL_BW_200 \
+                                    ))
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 6. Data Filter Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_DATA_FILTER          0xC228
+
+#define RFM_DATA_FILTER_AL       0xC2A8 // clock recovery auto-lock
+#define RFM_DATA_FILTER_ML       0xC268 // clock recovery fast mode
+#define RFM_DATA_FILTER_DIG      0xC228 // data filter type digital
+#define RFM_DATA_FILTER_ANALOG   0xC238 // data filter type analog
+#define RFM_DATA_FILTER_DQD(level) (RFM_DATA_FILTER | (level & 0x7))
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 7. FIFO and Reset Mode Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_FIFO                 0xCA00
+
+#define RFM_FIFO_AL              0xCA04 // FIFO Start condition sync-word/always
+#define RFM_FIFO_FF              0xCA02 // Enable FIFO fill
+#define RFM_FIFO_DR              0xCA01 // Disable hi sens reset mode
+#define RFM_FIFO_IT(level)       (RFM_FIFO | (( (level) & 0xF)<<4))
+
+#define RFM_FIFO_OFF()            RFM_SPI_16(RFM_FIFO_IT(8) |               RFM_FIFO_DR)
+#define RFM_FIFO_ON()             RFM_SPI_16(RFM_FIFO_IT(8) | RFM_FIFO_FF | RFM_FIFO_DR)
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// 8. Receiver FIFO Read
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#define RFM_READ_FIFO()           (RFM_SPI_16(0xB000) & 0xFF)
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// 9. AFC Command
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#define RFM_AFC                  0xC400
+
+#define RFM_AFC_EN               0xC401
+#define RFM_AFC_OE               0xC402
+#define RFM_AFC_FI               0xC404
+#define RFM_AFC_ST               0xC408
+
+// Limits the value of the frequency offset register to the next values:
+
+#define RFM_AFC_RANGE_LIMIT_NO    0xC400 // 0: No restriction
+#define RFM_AFC_RANGE_LIMIT_15_16 0xC410 // 1: +15 fres to -16 fres
+#define RFM_AFC_RANGE_LIMIT_7_8   0xC420 // 2: +7 fres to -8 fres
+#define RFM_AFC_RANGE_LIMIT_3_4   0xC430 // 3: +3 fres to -4 fres
+
+// fres=2.5 kHz in 315MHz and 433MHz Bands
+// fres=5.0 kHz in 868MHz Band
+// fres=7.5 kHz in 915MHz Band
+
+#define RFM_AFC_AUTO_OFF         0xC400 // 0: Auto mode off (Strobe is controlled by microcontroller)
+#define RFM_AFC_AUTO_ONCE        0xC440 // 1: Runs only once after each power-up
+#define RFM_AFC_AUTO_VDI         0xC480 // 2: Keep the foffset only during receiving(VDI=high)
+#define RFM_AFC_AUTO_INDEPENDENT 0xC4C0 // 3: Keep the foffset value independently trom the state of the VDI signal
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 10. TX Configuration Control Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_TX_CONTROL           0x9800
+
+#define RFM_TX_CONTROL_POW_0     0x9800
+#define RFM_TX_CONTROL_POW_3     0x9801
+#define RFM_TX_CONTROL_POW_6     0x9802
+#define RFM_TX_CONTROL_POW_9     0x9803
+#define RFM_TX_CONTROL_POW_12    0x9804
+#define RFM_TX_CONTROL_POW_15    0x9805
+#define RFM_TX_CONTROL_POW_18    0x9806
+#define RFM_TX_CONTROL_POW_21    0x9807
+#define RFM_TX_CONTROL_MOD_15    0x9800
+#define RFM_TX_CONTROL_MOD_30    0x9810
+#define RFM_TX_CONTROL_MOD_45    0x9820
+#define RFM_TX_CONTROL_MOD_60    0x9830
+#define RFM_TX_CONTROL_MOD_75    0x9840
+#define RFM_TX_CONTROL_MOD_90    0x9850
+#define RFM_TX_CONTROL_MOD_105   0x9860
+#define RFM_TX_CONTROL_MOD_120   0x9870
+#define RFM_TX_CONTROL_MOD_135   0x9880
+#define RFM_TX_CONTROL_MOD_150   0x9890
+#define RFM_TX_CONTROL_MOD_165   0x98A0
+#define RFM_TX_CONTROL_MOD_180   0x98B0
+#define RFM_TX_CONTROL_MOD_195   0x98C0
+#define RFM_TX_CONTROL_MOD_210   0x98D0
+#define RFM_TX_CONTROL_MOD_225   0x98E0
+#define RFM_TX_CONTROL_MOD_240   0x98F0
+#define RFM_TX_CONTROL_MP        0x9900
+
+#define RFM_TX_CONTROL_MOD(baud)    (((baud)<8000) ? \
+                                    RFM_TX_CONTROL_MOD_45 : \
+                                    ( \
+                                        ((baud)<20000) ? \
+                                        RFM_TX_CONTROL_MOD_60 : \
+                                        ( \
+                                            ((baud)<30000) ? \
+                                            RFM_TX_CONTROL_MOD_75 : \
+                                            ( \
+                                                ((baud)<40000) ? \
+                                                RFM_TX_CONTROL_MOD_90 : \
+                                                RFM_TX_CONTROL_MOD_120 \
+                                            ) \
+                                        ) \
+                                    ))
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// 11. Transmitter Register Write Command
+//
+/////////////////////////////////////////////////////////////////////////////
+
+//#define RFM_WRITE(byte)  RFM_SPI_16(0xB800 | ((byte) & 0xFF))
+#define RFM_WRITE(byte)  RFM_SPI_16(0xB800 | (byte) )
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 12. Wake-up Timer Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_WAKEUP_TIMER         0xE000
+#define RFM_WAKEUP_SET(time)     RFM_SPI_16(RFM_WAKEUP_TIMER | (time))
+
+#define RFM_WAKEUP_480s          (RFM_WAKEUP_TIMER |(11 << 8)| 234)
+#define RFM_WAKEUP_240s          (RFM_WAKEUP_TIMER |(10 << 8)| 234)
+#define RFM_WAKEUP_120s          (RFM_WAKEUP_TIMER |(9  << 8)| 234)
+#define RFM_WAKEUP_119s          (RFM_WAKEUP_TIMER |(9  << 8)| 232)
+
+#define RFM_WAKEUP_60s           (RFM_WAKEUP_TIMER |(8 << 8) | 235)
+#define RFM_WAKEUP_59s           (RFM_WAKEUP_TIMER |(8 << 8) | 230)
+
+#define RFM_WAKEUP_30s           (RFM_WAKEUP_TIMER |(7 << 8) | 235)
+#define RFM_WAKEUP_29s           (RFM_WAKEUP_TIMER |(7 << 8) | 227)
+
+#define RFM_WAKEUP_8s            (RFM_WAKEUP_TIMER |(5 << 8) | 250)
+#define RFM_WAKEUP_7s            (RFM_WAKEUP_TIMER |(5 << 8) | 219)
+#define RFM_WAKEUP_6s            (RFM_WAKEUP_TIMER |(6 << 8) |  94)
+#define RFM_WAKEUP_5s            (RFM_WAKEUP_TIMER |(5 << 8) | 156)
+#define RFM_WAKEUP_4s            (RFM_WAKEUP_TIMER |(5 << 8) | 125)
+#define RFM_WAKEUP_1s            (RFM_WAKEUP_TIMER |(2 << 8) | 250)
+#define RFM_WAKEUP_900ms         (RFM_WAKEUP_TIMER |(2 << 8) | 225)
+#define RFM_WAKEUP_800ms         (RFM_WAKEUP_TIMER |(2 << 8) | 200)
+#define RFM_WAKEUP_700ms         (RFM_WAKEUP_TIMER |(2 << 8) | 175)
+#define RFM_WAKEUP_600ms         (RFM_WAKEUP_TIMER |(2 << 8) | 150)
+#define RFM_WAKEUP_500ms         (RFM_WAKEUP_TIMER |(2 << 8) | 125)
+#define RFM_WAKEUP_400ms         (RFM_WAKEUP_TIMER |(2 << 8) | 100)
+#define RFM_WAKEUP_300ms         (RFM_WAKEUP_TIMER |(2 << 8) |  75)
+#define RFM_WAKEUP_200ms         (RFM_WAKEUP_TIMER |(2 << 8) |  50)
+#define RFM_WAKEUP_100ms         (RFM_WAKEUP_TIMER |(2 << 8) |  25)
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 13. Low Duty-Cycle Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_LOW_DUTY_CYCLE       0xC800
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 14. Low Battery Detector Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_LOW_BATT_DETECT           0xC000
+#define RFM_LOW_BATT_DETECT_D_1MHZ    0xC000
+#define RFM_LOW_BATT_DETECT_D_1_25MHZ 0xC020
+#define RFM_LOW_BATT_DETECT_D_1_66MHZ 0xC040
+#define RFM_LOW_BATT_DETECT_D_2MHZ    0xC060
+#define RFM_LOW_BATT_DETECT_D_2_5MHZ  0xC080
+#define RFM_LOW_BATT_DETECT_D_3_33MHZ 0xC0A0
+#define RFM_LOW_BATT_DETECT_D_5MHZ    0xC0C0
+#define RFM_LOW_BATT_DETECT_D_10MHZ   0xC0E0
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// 15. Status Read Command
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define RFM_READ_STATUS()       RFM_SPI_16(0x0000)
+#define RFM_READ_STATUS_FFIT()  SPI_1 (0x00)
+#define RFM_READ_STATUS_RGIT    RFM_READ_STATUS_FFIT
+
+///////////////////////////////////////////////////////////////////////////////
+
+// RFM air protocol flags:
+
+#define RFMPROTO_FLAGS_BITASK_PACKETTYPE        0b11000000 //!< the uppermost 2 bits of the flags field encode the packettype
+#define RFMPROTO_FLAGS_PACKETTYPE_BROADCAST        0b00000000 //!< broadcast packettype (message from hr20, protocol; step 1)
+#define RFMPROTO_FLAGS_PACKETTYPE_COMMAND        0b01000000 //!< command packettype (message to hr20, protocol; step 2)
+#define RFMPROTO_FLAGS_PACKETTYPE_REPLY            0b10000000 //!< reply packettype (message from hr20, protocol; step 3)
+#define RFMPROTO_FLAGS_PACKETTYPE_SPECIAL        0b11000000 //!< currently unused packettype
+
+#define RFMPROTO_FLAGS_BITASK_DEVICETYPE        0b00011111 //!< the lowermost 5 bytes denote the device type. this way other sensors and actors may coexist
+#define RFMPROTO_FLAGS_DEVICETYPE_OPENHR20        0b00010100 //!< topen HR20 device type. 10100 is for decimal 20
+
+#define RFMPROTO_IS_PACKETTYPE_BROADCAST(FLAGS)    ( RFMPROTO_FLAGS_PACKETTYPE_BROADCAST == ((FLAGS) & RFMPROTO_FLAGS_BITASK_PACKETTYPE) )
+#define RFMPROTO_IS_PACKETTYPE_COMMAND(FLAGS)    ( RFMPROTO_FLAGS_PACKETTYPE_COMMAND   == ((FLAGS) & RFMPROTO_FLAGS_BITASK_PACKETTYPE) )
+#define RFMPROTO_IS_PACKETTYPE_REPLY(FLAGS)        ( RFMPROTO_FLAGS_PACKETTYPE_REPLY     == ((FLAGS) & RFMPROTO_FLAGS_BITASK_PACKETTYPE) )
+#define RFMPROTO_IS_PACKETTYPE_SPECIAL(FLAGS)    ( RFMPROTO_FLAGS_PACKETTYPE_SPECIAL   == ((FLAGS) & RFMPROTO_FLAGS_BITASK_PACKETTYPE) )
+#define RFMPROTO_IS_DEVICETYPE_OPENHR20(FLAGS)    ( RFMPROTO_FLAGS_DEVICETYPE_OPENHR20  == ((FLAGS) & RFMPROTO_FLAGS_BITASK_DEVICETYPE) )
+
+///////////////////////////////////////////////////////////////////////////////
+
+#endif
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