CaryCoders / SX1276Lib

local copy of sx1276 library

Dependents:   SX1276_GPS demo_SX1276_standalone

Fork of SX1276Lib by Gregory Cristian

sx1276/sx1276-hal.cpp@7:2b555111463f, 2014-09-19 (annotated)

Committer:
GregCr
Date:
Fri Sep 19 14:16:35 2014 +0000
Revision:
7:2b555111463f
Parent:
6:e7f02929cd3d
Child:
8:0fe3e0e8007b
Added support for CAD; Changed Rssi into an int16_t

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GregCr 0:e6ceb13d2d05 1 /*
GregCr 0:e6ceb13d2d05 2 / _____) _ | |
GregCr 0:e6ceb13d2d05 3 ( (____ _____ ____ _| |_ _____ ____| |__
GregCr 0:e6ceb13d2d05 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
GregCr 0:e6ceb13d2d05 5 _____) ) ____| | | || |_| ____( (___| | | |
GregCr 0:e6ceb13d2d05 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
GregCr 0:e6ceb13d2d05 7 ( C )2014 Semtech
GregCr 0:e6ceb13d2d05 8
GregCr 0:e6ceb13d2d05 9 Description: -
GregCr 0:e6ceb13d2d05 10
GregCr 0:e6ceb13d2d05 11 License: Revised BSD License, see LICENSE.TXT file include in the project
GregCr 0:e6ceb13d2d05 12
GregCr 0:e6ceb13d2d05 13 Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin
GregCr 0:e6ceb13d2d05 14 */
GregCr 0:e6ceb13d2d05 15 #include "sx1276-hal.h"
GregCr 0:e6ceb13d2d05 16
GregCr 0:e6ceb13d2d05 17 const RadioRegisters_t SX1276MB1xAS::RadioRegsInit[] =
GregCr 0:e6ceb13d2d05 18 {
GregCr 0:e6ceb13d2d05 19 { MODEM_FSK , REG_LNA , 0x23 },
GregCr 0:e6ceb13d2d05 20 { MODEM_FSK , REG_RXCONFIG , 0x1E },
GregCr 0:e6ceb13d2d05 21 { MODEM_FSK , REG_RSSICONFIG , 0xD2 },
GregCr 0:e6ceb13d2d05 22 { MODEM_FSK , REG_PREAMBLEDETECT , 0xAA },
GregCr 0:e6ceb13d2d05 23 { MODEM_FSK , REG_OSC , 0x07 },
GregCr 0:e6ceb13d2d05 24 { MODEM_FSK , REG_SYNCCONFIG , 0x12 },
GregCr 0:e6ceb13d2d05 25 { MODEM_FSK , REG_SYNCVALUE1 , 0xC1 },
GregCr 0:e6ceb13d2d05 26 { MODEM_FSK , REG_SYNCVALUE2 , 0x94 },
GregCr 0:e6ceb13d2d05 27 { MODEM_FSK , REG_SYNCVALUE3 , 0xC1 },
GregCr 5:11ec8a6ba4f0 28 { MODEM_FSK , REG_PACKETCONFIG1 , 0x98 },
GregCr 0:e6ceb13d2d05 29 { MODEM_FSK , REG_FIFOTHRESH , 0x8F },
GregCr 0:e6ceb13d2d05 30 { MODEM_FSK , REG_IMAGECAL , 0x02 },
GregCr 0:e6ceb13d2d05 31 { MODEM_FSK , REG_DIOMAPPING1 , 0x00 },
GregCr 0:e6ceb13d2d05 32 { MODEM_FSK , REG_DIOMAPPING2 , 0x30 },
GregCr 0:e6ceb13d2d05 33 { MODEM_LORA, REG_LR_PAYLOADMAXLENGTH, 0x40 },
GregCr 0:e6ceb13d2d05 34 };
GregCr 0:e6ceb13d2d05 35
GregCr 7:2b555111463f 36 SX1276MB1xAS::SX1276MB1xAS( void ( *txDone )( ), void ( *txTimeout ) ( ), void ( *rxDone ) ( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ),
GregCr 7:2b555111463f 37 void ( *rxTimeout ) ( ), void ( *rxError ) ( ), void ( *fhssChangeChannel ) ( uint8_t channelIndex ), void ( *cadDone ) ( ),
GregCr 0:e6ceb13d2d05 38 PinName mosi, PinName miso, PinName sclk, PinName nss, PinName reset,
GregCr 0:e6ceb13d2d05 39 PinName dio0, PinName dio1, PinName dio2, PinName dio3, PinName dio4, PinName dio5,
GregCr 0:e6ceb13d2d05 40 PinName antSwitch )
GregCr 7:2b555111463f 41 : SX1276( txDone, txTimeout, rxDone, rxTimeout, rxError, fhssChangeChannel, cadDone, mosi, miso, sclk, nss, reset, dio0, dio1, dio2, dio3, dio4, dio5),
GregCr 0:e6ceb13d2d05 42 antSwitch( antSwitch ),
GregCr 0:e6ceb13d2d05 43 #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
GregCr 0:e6ceb13d2d05 44 fake( A3 )
GregCr 0:e6ceb13d2d05 45 #elif defined ( TARGET_NUCLEO_L152RE )
GregCr 0:e6ceb13d2d05 46 fake( D8 )
GregCr 0:e6ceb13d2d05 47 #else
GregCr 0:e6ceb13d2d05 48 #warning "Check availability of IRQs on your selected board"
GregCr 0:e6ceb13d2d05 49 #endif
GregCr 0:e6ceb13d2d05 50 {
GregCr 0:e6ceb13d2d05 51 Reset( );
GregCr 0:e6ceb13d2d05 52
GregCr 0:e6ceb13d2d05 53 RxChainCalibration( );
GregCr 0:e6ceb13d2d05 54
GregCr 0:e6ceb13d2d05 55 IoInit( );
GregCr 0:e6ceb13d2d05 56
GregCr 0:e6ceb13d2d05 57 SetOpMode( RF_OPMODE_SLEEP );
GregCr 0:e6ceb13d2d05 58
GregCr 0:e6ceb13d2d05 59 IoIrqInit( dioIrq );
GregCr 0:e6ceb13d2d05 60
GregCr 0:e6ceb13d2d05 61 RadioRegistersInit( );
GregCr 0:e6ceb13d2d05 62
GregCr 0:e6ceb13d2d05 63 SetModem( MODEM_FSK );
GregCr 0:e6ceb13d2d05 64
GregCr 0:e6ceb13d2d05 65 this->settings.State = IDLE ;
GregCr 0:e6ceb13d2d05 66 }
GregCr 0:e6ceb13d2d05 67
GregCr 7:2b555111463f 68 SX1276MB1xAS::SX1276MB1xAS( void ( *txDone )( ), void ( *txTimeout ) ( ), void ( *rxDone ) ( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ),
GregCr 7:2b555111463f 69 void ( *rxTimeout ) ( ), void ( *rxError ) ( ), void ( *fhssChangeChannel ) ( uint8_t channelIndex ), void ( *cadDone ) ( ) )
GregCr 0:e6ceb13d2d05 70 #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
GregCr 7:2b555111463f 71 : SX1276( txDone, txTimeout, rxDone, rxTimeout, rxError, fhssChangeChannel, cadDone, D11, D12, D13, D10, A0, D2, D3, D4, D5, D8, D9 ),
GregCr 0:e6ceb13d2d05 72 antSwitch( A4 ),
GregCr 0:e6ceb13d2d05 73 fake( A3 )
GregCr 0:e6ceb13d2d05 74 #elif defined ( TARGET_NUCLEO_L152RE )
GregCr 7:2b555111463f 75 : SX1276( txDone, txTimeout, rxDone, rxTimeout, rxError, fhssChangeChannel, cadDone, D11, D12, D13, D10, A0, D2, D3, D4, D5, A3, D9 ), // For NUCLEO L152RE dio4 is on port A3
GregCr 0:e6ceb13d2d05 76 antSwitch( A4 ),
GregCr 0:e6ceb13d2d05 77 fake( D8 )
GregCr 0:e6ceb13d2d05 78 #else
GregCr 0:e6ceb13d2d05 79 #warning "Check availability of IRQs on your selected board"
GregCr 0:e6ceb13d2d05 80 #endif
GregCr 0:e6ceb13d2d05 81 {
GregCr 0:e6ceb13d2d05 82 Reset( );
GregCr 0:e6ceb13d2d05 83
GregCr 5:11ec8a6ba4f0 84 boardConnected = UNKNOWN;
GregCr 5:11ec8a6ba4f0 85
GregCr 1:f979673946c0 86 DetectBoardType( );
GregCr 1:f979673946c0 87
GregCr 0:e6ceb13d2d05 88 RxChainCalibration( );
GregCr 0:e6ceb13d2d05 89
GregCr 0:e6ceb13d2d05 90 IoInit( );
GregCr 0:e6ceb13d2d05 91
GregCr 0:e6ceb13d2d05 92 SetOpMode( RF_OPMODE_SLEEP );
GregCr 0:e6ceb13d2d05 93 IoIrqInit( dioIrq );
GregCr 0:e6ceb13d2d05 94
GregCr 0:e6ceb13d2d05 95 RadioRegistersInit( );
GregCr 0:e6ceb13d2d05 96
GregCr 0:e6ceb13d2d05 97 SetModem( MODEM_FSK );
GregCr 0:e6ceb13d2d05 98
GregCr 0:e6ceb13d2d05 99 this->settings.State = IDLE ;
GregCr 0:e6ceb13d2d05 100 }
GregCr 0:e6ceb13d2d05 101
GregCr 0:e6ceb13d2d05 102 //-------------------------------------------------------------------------
GregCr 0:e6ceb13d2d05 103 // Board relative functions
GregCr 0:e6ceb13d2d05 104 //-------------------------------------------------------------------------
GregCr 2:5eb3066446dd 105 uint8_t SX1276MB1xAS::DetectBoardType( void )
GregCr 1:f979673946c0 106 {
GregCr 5:11ec8a6ba4f0 107 if( boardConnected == UNKNOWN )
GregCr 1:f979673946c0 108 {
GregCr 5:11ec8a6ba4f0 109 antSwitch.input( );
GregCr 5:11ec8a6ba4f0 110 wait_ms( 1 );
GregCr 5:11ec8a6ba4f0 111 if( antSwitch == 1 )
GregCr 5:11ec8a6ba4f0 112 {
GregCr 5:11ec8a6ba4f0 113 boardConnected = SX1276MB1LAS;
GregCr 5:11ec8a6ba4f0 114 }
GregCr 5:11ec8a6ba4f0 115 else
GregCr 5:11ec8a6ba4f0 116 {
GregCr 5:11ec8a6ba4f0 117 boardConnected = SX1276MB1MAS;
GregCr 5:11ec8a6ba4f0 118 }
GregCr 5:11ec8a6ba4f0 119 antSwitch.output( );
GregCr 5:11ec8a6ba4f0 120 wait_ms( 1 );
GregCr 1:f979673946c0 121 }
GregCr 2:5eb3066446dd 122 return ( boardConnected );
GregCr 1:f979673946c0 123 }
GregCr 0:e6ceb13d2d05 124
GregCr 0:e6ceb13d2d05 125 void SX1276MB1xAS::IoInit( void )
GregCr 0:e6ceb13d2d05 126 {
GregCr 0:e6ceb13d2d05 127 AntSwInit( );
GregCr 0:e6ceb13d2d05 128 SpiInit( );
GregCr 0:e6ceb13d2d05 129 }
GregCr 0:e6ceb13d2d05 130
GregCr 0:e6ceb13d2d05 131 void SX1276MB1xAS::RadioRegistersInit( ){
GregCr 0:e6ceb13d2d05 132 uint8_t i = 0;
GregCr 0:e6ceb13d2d05 133 for( i = 0; i < sizeof( RadioRegsInit ) / sizeof( RadioRegisters_t ); i++ )
GregCr 0:e6ceb13d2d05 134 {
GregCr 0:e6ceb13d2d05 135 SetModem( RadioRegsInit[i].Modem );
GregCr 0:e6ceb13d2d05 136 Write( RadioRegsInit[i].Addr, RadioRegsInit[i].Value );
GregCr 0:e6ceb13d2d05 137 }
GregCr 0:e6ceb13d2d05 138 }
GregCr 0:e6ceb13d2d05 139
GregCr 0:e6ceb13d2d05 140 void SX1276MB1xAS::SpiInit( void )
GregCr 0:e6ceb13d2d05 141 {
GregCr 0:e6ceb13d2d05 142 nss = 1;
GregCr 0:e6ceb13d2d05 143 spi.format( 8,0 );
GregCr 0:e6ceb13d2d05 144 uint32_t frequencyToSet = 8000000;
GregCr 0:e6ceb13d2d05 145 #if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_LPC11U6X ) )
GregCr 0:e6ceb13d2d05 146 spi.frequency( frequencyToSet );
GregCr 0:e6ceb13d2d05 147 #elif( defined ( TARGET_KL25Z ) ) //busclock frequency is halved -> double the spi frequency to compensate
GregCr 0:e6ceb13d2d05 148 spi.frequency( frequencyToSet * 2 );
GregCr 0:e6ceb13d2d05 149 #else
GregCr 0:e6ceb13d2d05 150 #warning "Check the board's SPI frequency"
GregCr 0:e6ceb13d2d05 151 #endif
GregCr 0:e6ceb13d2d05 152 wait(0.1);
GregCr 0:e6ceb13d2d05 153 }
GregCr 0:e6ceb13d2d05 154
GregCr 0:e6ceb13d2d05 155 void SX1276MB1xAS::IoIrqInit( DioIrqHandler *irqHandlers )
GregCr 0:e6ceb13d2d05 156 {
GregCr 0:e6ceb13d2d05 157 #if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_LPC11U6X ) )
GregCr 0:e6ceb13d2d05 158 dio0.mode(PullDown);
GregCr 0:e6ceb13d2d05 159 dio1.mode(PullDown);
GregCr 0:e6ceb13d2d05 160 dio2.mode(PullDown);
GregCr 0:e6ceb13d2d05 161 dio3.mode(PullDown);
GregCr 0:e6ceb13d2d05 162 dio4.mode(PullDown);
GregCr 0:e6ceb13d2d05 163 #endif
GregCr 0:e6ceb13d2d05 164 dio0.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[0] ) );
GregCr 0:e6ceb13d2d05 165 dio1.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[1] ) );
GregCr 0:e6ceb13d2d05 166 dio2.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[2] ) );
GregCr 0:e6ceb13d2d05 167 dio3.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[3] ) );
GregCr 0:e6ceb13d2d05 168 dio4.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[4] ) );
GregCr 0:e6ceb13d2d05 169 }
GregCr 0:e6ceb13d2d05 170
GregCr 0:e6ceb13d2d05 171 void SX1276MB1xAS::IoDeInit( void )
GregCr 0:e6ceb13d2d05 172 {
GregCr 0:e6ceb13d2d05 173 //nothing
GregCr 0:e6ceb13d2d05 174 }
GregCr 0:e6ceb13d2d05 175
GregCr 0:e6ceb13d2d05 176 uint8_t SX1276MB1xAS::GetPaSelect( uint32_t channel )
GregCr 0:e6ceb13d2d05 177 {
GregCr 0:e6ceb13d2d05 178 if( channel > RF_MID_BAND_THRESH )
GregCr 0:e6ceb13d2d05 179 {
GregCr 3:ca84be1f3fac 180 if( boardConnected == SX1276MB1LAS )
GregCr 1:f979673946c0 181 {
GregCr 1:f979673946c0 182 return RF_PACONFIG_PASELECT_PABOOST;
GregCr 1:f979673946c0 183 }
GregCr 1:f979673946c0 184 else
GregCr 1:f979673946c0 185 {
GregCr 1:f979673946c0 186 return RF_PACONFIG_PASELECT_RFO;
GregCr 1:f979673946c0 187 }
GregCr 0:e6ceb13d2d05 188 }
GregCr 0:e6ceb13d2d05 189 else
GregCr 0:e6ceb13d2d05 190 {
GregCr 0:e6ceb13d2d05 191 return RF_PACONFIG_PASELECT_RFO;
GregCr 0:e6ceb13d2d05 192 }
GregCr 0:e6ceb13d2d05 193 }
GregCr 0:e6ceb13d2d05 194
GregCr 0:e6ceb13d2d05 195 void SX1276MB1xAS::SetAntSwLowPower( bool status )
GregCr 0:e6ceb13d2d05 196 {
GregCr 0:e6ceb13d2d05 197 if( isRadioActive != status )
GregCr 0:e6ceb13d2d05 198 {
GregCr 0:e6ceb13d2d05 199 isRadioActive = status;
GregCr 0:e6ceb13d2d05 200
GregCr 0:e6ceb13d2d05 201 if( status == false )
GregCr 0:e6ceb13d2d05 202 {
GregCr 0:e6ceb13d2d05 203 AntSwInit( );
GregCr 0:e6ceb13d2d05 204 }
GregCr 0:e6ceb13d2d05 205 else
GregCr 0:e6ceb13d2d05 206 {
GregCr 0:e6ceb13d2d05 207 AntSwDeInit( );
GregCr 0:e6ceb13d2d05 208 }
GregCr 0:e6ceb13d2d05 209 }
GregCr 0:e6ceb13d2d05 210 }
GregCr 0:e6ceb13d2d05 211
GregCr 0:e6ceb13d2d05 212 void SX1276MB1xAS::AntSwInit( void )
GregCr 0:e6ceb13d2d05 213 {
GregCr 0:e6ceb13d2d05 214 antSwitch = 0;
GregCr 0:e6ceb13d2d05 215 }
GregCr 0:e6ceb13d2d05 216
GregCr 0:e6ceb13d2d05 217 void SX1276MB1xAS::AntSwDeInit( void )
GregCr 0:e6ceb13d2d05 218 {
GregCr 0:e6ceb13d2d05 219 antSwitch = 0;
GregCr 0:e6ceb13d2d05 220 }
GregCr 0:e6ceb13d2d05 221
GregCr 0:e6ceb13d2d05 222 void SX1276MB1xAS::SetAntSw( uint8_t rxTx )
GregCr 0:e6ceb13d2d05 223 {
GregCr 0:e6ceb13d2d05 224 if( this->rxTx == rxTx )
GregCr 0:e6ceb13d2d05 225 {
GregCr 0:e6ceb13d2d05 226 //no need to go further
GregCr 0:e6ceb13d2d05 227 return;
GregCr 0:e6ceb13d2d05 228 }
GregCr 0:e6ceb13d2d05 229
GregCr 0:e6ceb13d2d05 230 this->rxTx = rxTx;
GregCr 0:e6ceb13d2d05 231
GregCr 0:e6ceb13d2d05 232 if( rxTx != 0 )
GregCr 0:e6ceb13d2d05 233 {
GregCr 0:e6ceb13d2d05 234 antSwitch = 1;
GregCr 0:e6ceb13d2d05 235 }
GregCr 0:e6ceb13d2d05 236 else
GregCr 0:e6ceb13d2d05 237 {
GregCr 0:e6ceb13d2d05 238 antSwitch = 0;
GregCr 0:e6ceb13d2d05 239 }
GregCr 0:e6ceb13d2d05 240 }
GregCr 0:e6ceb13d2d05 241
GregCr 0:e6ceb13d2d05 242 bool SX1276MB1xAS::CheckRfFrequency( uint32_t frequency )
GregCr 0:e6ceb13d2d05 243 {
GregCr 0:e6ceb13d2d05 244 //TODO: Implement check, currently all frequencies are supported
GregCr 0:e6ceb13d2d05 245 return true;
GregCr 0:e6ceb13d2d05 246 }
GregCr 0:e6ceb13d2d05 247
GregCr 0:e6ceb13d2d05 248
GregCr 0:e6ceb13d2d05 249 void SX1276MB1xAS::Reset( void )
GregCr 0:e6ceb13d2d05 250 {
GregCr 4:f0ce52e94d3f 251 reset.output();
GregCr 0:e6ceb13d2d05 252 reset = 0;
GregCr 0:e6ceb13d2d05 253 wait_ms( 1 );
GregCr 4:f0ce52e94d3f 254 reset.input();
GregCr 0:e6ceb13d2d05 255 wait_ms( 6 );
GregCr 0:e6ceb13d2d05 256 }
GregCr 0:e6ceb13d2d05 257
GregCr 0:e6ceb13d2d05 258 void SX1276MB1xAS::Write( uint8_t addr, uint8_t data )
GregCr 0:e6ceb13d2d05 259 {
GregCr 0:e6ceb13d2d05 260 Write( addr, &data, 1 );
GregCr 0:e6ceb13d2d05 261 }
GregCr 0:e6ceb13d2d05 262
GregCr 0:e6ceb13d2d05 263 uint8_t SX1276MB1xAS::Read( uint8_t addr )
GregCr 0:e6ceb13d2d05 264 {
GregCr 0:e6ceb13d2d05 265 uint8_t data;
GregCr 0:e6ceb13d2d05 266 Read( addr, &data, 1 );
GregCr 0:e6ceb13d2d05 267 return data;
GregCr 0:e6ceb13d2d05 268 }
GregCr 0:e6ceb13d2d05 269
GregCr 0:e6ceb13d2d05 270 void SX1276MB1xAS::Write( uint8_t addr, uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 271 {
GregCr 0:e6ceb13d2d05 272 uint8_t i;
GregCr 0:e6ceb13d2d05 273
GregCr 0:e6ceb13d2d05 274 nss = 0;
GregCr 0:e6ceb13d2d05 275 spi.write( addr | 0x80 );
GregCr 0:e6ceb13d2d05 276 for( i = 0; i < size; i++ )
GregCr 0:e6ceb13d2d05 277 {
GregCr 0:e6ceb13d2d05 278 spi.write( buffer[i] );
GregCr 0:e6ceb13d2d05 279 }
GregCr 0:e6ceb13d2d05 280 nss = 1;
GregCr 0:e6ceb13d2d05 281 }
GregCr 0:e6ceb13d2d05 282
GregCr 0:e6ceb13d2d05 283 void SX1276MB1xAS::Read( uint8_t addr, uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 284 {
GregCr 0:e6ceb13d2d05 285 uint8_t i;
GregCr 0:e6ceb13d2d05 286
GregCr 0:e6ceb13d2d05 287 nss = 0;
GregCr 0:e6ceb13d2d05 288 spi.write( addr & 0x7F );
GregCr 0:e6ceb13d2d05 289 for( i = 0; i < size; i++ )
GregCr 0:e6ceb13d2d05 290 {
GregCr 0:e6ceb13d2d05 291 buffer[i] = spi.write( 0 );
GregCr 0:e6ceb13d2d05 292 }
GregCr 0:e6ceb13d2d05 293 nss = 1;
GregCr 0:e6ceb13d2d05 294 }
GregCr 0:e6ceb13d2d05 295
GregCr 0:e6ceb13d2d05 296 void SX1276MB1xAS::WriteFifo( uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 297 {
GregCr 0:e6ceb13d2d05 298 Write( 0, buffer, size );
GregCr 0:e6ceb13d2d05 299 }
GregCr 0:e6ceb13d2d05 300
GregCr 0:e6ceb13d2d05 301 void SX1276MB1xAS::ReadFifo( uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 302 {
GregCr 0:e6ceb13d2d05 303 Read( 0, buffer, size );
GregCr 0:e6ceb13d2d05 304 }