Amir Chaudhary / SX1276Lib

Hexmodal SX1276lib

Dependents:   LoRaWAN-hello-world_Class_C_Anish

sx1276/sx1276-hal.cpp@1:f979673946c0, 2014-08-19 (annotated)

Committer:
GregCr
Date:
Tue Aug 19 07:10:31 2014 +0000
Revision:
1:f979673946c0
Parent:
0:e6ceb13d2d05
Child:
2:5eb3066446dd
Added board detection following default status of Antenna Switch pin

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 1:f979673946c0 16 #include "debug.h"
GregCr 0:e6ceb13d2d05 17
GregCr 0:e6ceb13d2d05 18 const RadioRegisters_t SX1276MB1xAS::RadioRegsInit[] =
GregCr 0:e6ceb13d2d05 19 {
GregCr 0:e6ceb13d2d05 20 { MODEM_FSK , REG_LNA , 0x23 },
GregCr 0:e6ceb13d2d05 21 { MODEM_FSK , REG_RXCONFIG , 0x1E },
GregCr 0:e6ceb13d2d05 22 { MODEM_FSK , REG_RSSICONFIG , 0xD2 },
GregCr 0:e6ceb13d2d05 23 { MODEM_FSK , REG_PREAMBLEDETECT , 0xAA },
GregCr 0:e6ceb13d2d05 24 { MODEM_FSK , REG_OSC , 0x07 },
GregCr 0:e6ceb13d2d05 25 { MODEM_FSK , REG_SYNCCONFIG , 0x12 },
GregCr 0:e6ceb13d2d05 26 { MODEM_FSK , REG_SYNCVALUE1 , 0xC1 },
GregCr 0:e6ceb13d2d05 27 { MODEM_FSK , REG_SYNCVALUE2 , 0x94 },
GregCr 0:e6ceb13d2d05 28 { MODEM_FSK , REG_SYNCVALUE3 , 0xC1 },
GregCr 0:e6ceb13d2d05 29 { MODEM_FSK , REG_PACKETCONFIG1 , 0xD8 },
GregCr 0:e6ceb13d2d05 30 { MODEM_FSK , REG_FIFOTHRESH , 0x8F },
GregCr 0:e6ceb13d2d05 31 { MODEM_FSK , REG_IMAGECAL , 0x02 },
GregCr 0:e6ceb13d2d05 32 { MODEM_FSK , REG_DIOMAPPING1 , 0x00 },
GregCr 0:e6ceb13d2d05 33 { MODEM_FSK , REG_DIOMAPPING2 , 0x30 },
GregCr 0:e6ceb13d2d05 34 { MODEM_LORA, REG_LR_PAYLOADMAXLENGTH, 0x40 },
GregCr 0:e6ceb13d2d05 35 };
GregCr 0:e6ceb13d2d05 36
GregCr 0:e6ceb13d2d05 37 SX1276MB1xAS::SX1276MB1xAS( void ( *txDone )( ), void ( *txTimeout ) ( ), void ( *rxDone ) ( uint8_t *payload, uint16_t size, int8_t rssi, int8_t snr ), void ( *rxTimeout ) ( ), void ( *rxError ) ( ),
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 0:e6ceb13d2d05 41 : SX1276( txDone, txTimeout, rxDone, rxTimeout, rxError, 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 0:e6ceb13d2d05 68 SX1276MB1xAS::SX1276MB1xAS( void ( *txDone )( ), void ( *txTimeout ) ( ), void ( *rxDone ) ( uint8_t *payload, uint16_t size, int8_t rssi, int8_t snr ), void ( *rxTimeout ) ( ), void ( *rxError ) ( ) )
GregCr 0:e6ceb13d2d05 69 #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
GregCr 0:e6ceb13d2d05 70 : SX1276( txDone, txTimeout, rxDone, rxTimeout, rxError, D11, D12, D13, D10, A0, D2, D3, D4, D5, D8, D9 ),
GregCr 0:e6ceb13d2d05 71 antSwitch( A4 ),
GregCr 0:e6ceb13d2d05 72 fake( A3 )
GregCr 0:e6ceb13d2d05 73 #elif defined ( TARGET_NUCLEO_L152RE )
GregCr 0:e6ceb13d2d05 74 : SX1276( txDone, txTimeout, rxDone, rxTimeout, rxError, D11, D12, D13, D10, A0, D2, D3, D4, D5, A3, D9 ), // For NUCLEO L152RE dio4 is on port A3
GregCr 0:e6ceb13d2d05 75 antSwitch( A4 ),
GregCr 0:e6ceb13d2d05 76 fake( D8 )
GregCr 0:e6ceb13d2d05 77 #else
GregCr 0:e6ceb13d2d05 78 #warning "Check availability of IRQs on your selected board"
GregCr 0:e6ceb13d2d05 79 #endif
GregCr 0:e6ceb13d2d05 80 {
GregCr 0:e6ceb13d2d05 81 Reset( );
GregCr 0:e6ceb13d2d05 82
GregCr 1:f979673946c0 83 DetectBoardType( );
GregCr 1:f979673946c0 84
GregCr 0:e6ceb13d2d05 85 RxChainCalibration( );
GregCr 0:e6ceb13d2d05 86
GregCr 0:e6ceb13d2d05 87 IoInit( );
GregCr 0:e6ceb13d2d05 88
GregCr 0:e6ceb13d2d05 89 SetOpMode( RF_OPMODE_SLEEP );
GregCr 0:e6ceb13d2d05 90 IoIrqInit( dioIrq );
GregCr 0:e6ceb13d2d05 91
GregCr 0:e6ceb13d2d05 92 RadioRegistersInit( );
GregCr 0:e6ceb13d2d05 93
GregCr 0:e6ceb13d2d05 94 SetModem( MODEM_FSK );
GregCr 0:e6ceb13d2d05 95
GregCr 0:e6ceb13d2d05 96 this->settings.State = IDLE ;
GregCr 0:e6ceb13d2d05 97 }
GregCr 0:e6ceb13d2d05 98
GregCr 0:e6ceb13d2d05 99 //-------------------------------------------------------------------------
GregCr 0:e6ceb13d2d05 100 // Board relative functions
GregCr 0:e6ceb13d2d05 101 //-------------------------------------------------------------------------
GregCr 1:f979673946c0 102 void SX1276MB1xAS::DetectBoardType( void )
GregCr 1:f979673946c0 103 {
GregCr 1:f979673946c0 104 antSwitch.input( );
GregCr 1:f979673946c0 105 if( antSwitch == 1 )
GregCr 1:f979673946c0 106 {
GregCr 1:f979673946c0 107 boardConnected = 0x01;
GregCr 1:f979673946c0 108 }
GregCr 1:f979673946c0 109 else
GregCr 1:f979673946c0 110 {
GregCr 1:f979673946c0 111 boardConnected = 0x00;
GregCr 1:f979673946c0 112 }
GregCr 1:f979673946c0 113 antSwitch.output( );
GregCr 1:f979673946c0 114 }
GregCr 0:e6ceb13d2d05 115
GregCr 0:e6ceb13d2d05 116 void SX1276MB1xAS::IoInit( void )
GregCr 0:e6ceb13d2d05 117 {
GregCr 0:e6ceb13d2d05 118 AntSwInit( );
GregCr 0:e6ceb13d2d05 119 SpiInit( );
GregCr 0:e6ceb13d2d05 120 }
GregCr 0:e6ceb13d2d05 121
GregCr 0:e6ceb13d2d05 122 void SX1276MB1xAS::RadioRegistersInit( ){
GregCr 0:e6ceb13d2d05 123 uint8_t i = 0;
GregCr 0:e6ceb13d2d05 124 for( i = 0; i < sizeof( RadioRegsInit ) / sizeof( RadioRegisters_t ); i++ )
GregCr 0:e6ceb13d2d05 125 {
GregCr 0:e6ceb13d2d05 126 SetModem( RadioRegsInit[i].Modem );
GregCr 0:e6ceb13d2d05 127 Write( RadioRegsInit[i].Addr, RadioRegsInit[i].Value );
GregCr 0:e6ceb13d2d05 128 }
GregCr 0:e6ceb13d2d05 129 }
GregCr 0:e6ceb13d2d05 130
GregCr 0:e6ceb13d2d05 131 void SX1276MB1xAS::SpiInit( void )
GregCr 0:e6ceb13d2d05 132 {
GregCr 0:e6ceb13d2d05 133
GregCr 0:e6ceb13d2d05 134 nss = 1;
GregCr 0:e6ceb13d2d05 135 spi.format( 8,0 );
GregCr 0:e6ceb13d2d05 136 uint32_t frequencyToSet = 8000000;
GregCr 0:e6ceb13d2d05 137 #if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_LPC11U6X ) )
GregCr 0:e6ceb13d2d05 138 spi.frequency( frequencyToSet );
GregCr 0:e6ceb13d2d05 139 #elif( defined ( TARGET_KL25Z ) ) //busclock frequency is halved -> double the spi frequency to compensate
GregCr 0:e6ceb13d2d05 140 spi.frequency( frequencyToSet * 2 );
GregCr 0:e6ceb13d2d05 141 #else
GregCr 0:e6ceb13d2d05 142 #warning "Check the board's SPI frequency"
GregCr 0:e6ceb13d2d05 143 #endif
GregCr 0:e6ceb13d2d05 144 wait(0.1);
GregCr 0:e6ceb13d2d05 145 }
GregCr 0:e6ceb13d2d05 146
GregCr 0:e6ceb13d2d05 147 void SX1276MB1xAS::IoIrqInit( DioIrqHandler *irqHandlers )
GregCr 0:e6ceb13d2d05 148 {
GregCr 0:e6ceb13d2d05 149 #if( defined ( TARGET_NUCLEO_L152RE ) || defined ( TARGET_LPC11U6X ) )
GregCr 0:e6ceb13d2d05 150 dio0.mode(PullDown);
GregCr 0:e6ceb13d2d05 151 dio1.mode(PullDown);
GregCr 0:e6ceb13d2d05 152 dio2.mode(PullDown);
GregCr 0:e6ceb13d2d05 153 dio3.mode(PullDown);
GregCr 0:e6ceb13d2d05 154 dio4.mode(PullDown);
GregCr 0:e6ceb13d2d05 155 #endif
GregCr 0:e6ceb13d2d05 156 dio0.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[0] ) );
GregCr 0:e6ceb13d2d05 157 dio1.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[1] ) );
GregCr 0:e6ceb13d2d05 158 dio2.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[2] ) );
GregCr 0:e6ceb13d2d05 159 dio3.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[3] ) );
GregCr 0:e6ceb13d2d05 160 dio4.rise( this, static_cast< TriggerMB1xAS > ( irqHandlers[4] ) );
GregCr 0:e6ceb13d2d05 161 }
GregCr 0:e6ceb13d2d05 162
GregCr 0:e6ceb13d2d05 163 void SX1276MB1xAS::IoDeInit( void )
GregCr 0:e6ceb13d2d05 164 {
GregCr 0:e6ceb13d2d05 165 //nothing
GregCr 0:e6ceb13d2d05 166 }
GregCr 0:e6ceb13d2d05 167
GregCr 0:e6ceb13d2d05 168 uint8_t SX1276MB1xAS::GetPaSelect( uint32_t channel )
GregCr 0:e6ceb13d2d05 169 {
GregCr 0:e6ceb13d2d05 170 if( channel > RF_MID_BAND_THRESH )
GregCr 0:e6ceb13d2d05 171 {
GregCr 1:f979673946c0 172 if( boardConnected == 0x01 )
GregCr 1:f979673946c0 173 {
GregCr 1:f979673946c0 174 return RF_PACONFIG_PASELECT_PABOOST;
GregCr 1:f979673946c0 175 }
GregCr 1:f979673946c0 176 else
GregCr 1:f979673946c0 177 {
GregCr 1:f979673946c0 178 return RF_PACONFIG_PASELECT_RFO;
GregCr 1:f979673946c0 179 }
GregCr 0:e6ceb13d2d05 180 }
GregCr 0:e6ceb13d2d05 181 else
GregCr 0:e6ceb13d2d05 182 {
GregCr 0:e6ceb13d2d05 183 return RF_PACONFIG_PASELECT_RFO;
GregCr 0:e6ceb13d2d05 184 }
GregCr 0:e6ceb13d2d05 185 }
GregCr 0:e6ceb13d2d05 186
GregCr 0:e6ceb13d2d05 187 void SX1276MB1xAS::SetAntSwLowPower( bool status )
GregCr 0:e6ceb13d2d05 188 {
GregCr 0:e6ceb13d2d05 189 if( isRadioActive != status )
GregCr 0:e6ceb13d2d05 190 {
GregCr 0:e6ceb13d2d05 191 isRadioActive = status;
GregCr 0:e6ceb13d2d05 192
GregCr 0:e6ceb13d2d05 193 if( status == false )
GregCr 0:e6ceb13d2d05 194 {
GregCr 0:e6ceb13d2d05 195 AntSwInit( );
GregCr 0:e6ceb13d2d05 196 }
GregCr 0:e6ceb13d2d05 197 else
GregCr 0:e6ceb13d2d05 198 {
GregCr 0:e6ceb13d2d05 199 AntSwDeInit( );
GregCr 0:e6ceb13d2d05 200 }
GregCr 0:e6ceb13d2d05 201 }
GregCr 0:e6ceb13d2d05 202 }
GregCr 0:e6ceb13d2d05 203
GregCr 0:e6ceb13d2d05 204 void SX1276MB1xAS::AntSwInit( void )
GregCr 0:e6ceb13d2d05 205 {
GregCr 0:e6ceb13d2d05 206 antSwitch = 0;
GregCr 0:e6ceb13d2d05 207 }
GregCr 0:e6ceb13d2d05 208
GregCr 0:e6ceb13d2d05 209 void SX1276MB1xAS::AntSwDeInit( void )
GregCr 0:e6ceb13d2d05 210 {
GregCr 0:e6ceb13d2d05 211 antSwitch = 0;
GregCr 0:e6ceb13d2d05 212 }
GregCr 0:e6ceb13d2d05 213
GregCr 0:e6ceb13d2d05 214 void SX1276MB1xAS::SetAntSw( uint8_t rxTx )
GregCr 0:e6ceb13d2d05 215 {
GregCr 0:e6ceb13d2d05 216 if( this->rxTx == rxTx )
GregCr 0:e6ceb13d2d05 217 {
GregCr 0:e6ceb13d2d05 218 //no need to go further
GregCr 0:e6ceb13d2d05 219 return;
GregCr 0:e6ceb13d2d05 220 }
GregCr 0:e6ceb13d2d05 221
GregCr 0:e6ceb13d2d05 222 this->rxTx = rxTx;
GregCr 0:e6ceb13d2d05 223
GregCr 0:e6ceb13d2d05 224 if( rxTx != 0 )
GregCr 0:e6ceb13d2d05 225 {
GregCr 0:e6ceb13d2d05 226 antSwitch = 1;
GregCr 0:e6ceb13d2d05 227 }
GregCr 0:e6ceb13d2d05 228 else
GregCr 0:e6ceb13d2d05 229 {
GregCr 0:e6ceb13d2d05 230 antSwitch = 0;
GregCr 0:e6ceb13d2d05 231 }
GregCr 0:e6ceb13d2d05 232 }
GregCr 0:e6ceb13d2d05 233
GregCr 0:e6ceb13d2d05 234 bool SX1276MB1xAS::CheckRfFrequency( uint32_t frequency )
GregCr 0:e6ceb13d2d05 235 {
GregCr 0:e6ceb13d2d05 236 //TODO: Implement check, currently all frequencies are supported
GregCr 0:e6ceb13d2d05 237 return true;
GregCr 0:e6ceb13d2d05 238 }
GregCr 0:e6ceb13d2d05 239
GregCr 0:e6ceb13d2d05 240
GregCr 0:e6ceb13d2d05 241 void SX1276MB1xAS::Reset( void )
GregCr 0:e6ceb13d2d05 242 {
GregCr 0:e6ceb13d2d05 243 reset = 0;
GregCr 0:e6ceb13d2d05 244 wait_ms( 1 );
GregCr 0:e6ceb13d2d05 245 reset = 1;
GregCr 0:e6ceb13d2d05 246 wait_ms( 6 );
GregCr 0:e6ceb13d2d05 247 }
GregCr 0:e6ceb13d2d05 248
GregCr 0:e6ceb13d2d05 249 void SX1276MB1xAS::Write( uint8_t addr, uint8_t data )
GregCr 0:e6ceb13d2d05 250 {
GregCr 0:e6ceb13d2d05 251 Write( addr, &data, 1 );
GregCr 0:e6ceb13d2d05 252 }
GregCr 0:e6ceb13d2d05 253
GregCr 0:e6ceb13d2d05 254 uint8_t SX1276MB1xAS::Read( uint8_t addr )
GregCr 0:e6ceb13d2d05 255 {
GregCr 0:e6ceb13d2d05 256 uint8_t data;
GregCr 0:e6ceb13d2d05 257 Read( addr, &data, 1 );
GregCr 0:e6ceb13d2d05 258 return data;
GregCr 0:e6ceb13d2d05 259 }
GregCr 0:e6ceb13d2d05 260
GregCr 0:e6ceb13d2d05 261 void SX1276MB1xAS::Write( uint8_t addr, uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 262 {
GregCr 0:e6ceb13d2d05 263 uint8_t i;
GregCr 0:e6ceb13d2d05 264
GregCr 0:e6ceb13d2d05 265 nss = 0;
GregCr 0:e6ceb13d2d05 266 spi.write( addr | 0x80 );
GregCr 0:e6ceb13d2d05 267 for( i = 0; i < size; i++ )
GregCr 0:e6ceb13d2d05 268 {
GregCr 0:e6ceb13d2d05 269 spi.write( buffer[i] );
GregCr 0:e6ceb13d2d05 270 }
GregCr 0:e6ceb13d2d05 271 nss = 1;
GregCr 0:e6ceb13d2d05 272 }
GregCr 0:e6ceb13d2d05 273
GregCr 0:e6ceb13d2d05 274 void SX1276MB1xAS::Read( uint8_t addr, uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 275 {
GregCr 0:e6ceb13d2d05 276 uint8_t i;
GregCr 0:e6ceb13d2d05 277
GregCr 0:e6ceb13d2d05 278 nss = 0;
GregCr 0:e6ceb13d2d05 279 spi.write( addr & 0x7F );
GregCr 0:e6ceb13d2d05 280 for( i = 0; i < size; i++ )
GregCr 0:e6ceb13d2d05 281 {
GregCr 0:e6ceb13d2d05 282 buffer[i] = spi.write( 0 );
GregCr 0:e6ceb13d2d05 283 }
GregCr 0:e6ceb13d2d05 284 nss = 1;
GregCr 0:e6ceb13d2d05 285 }
GregCr 0:e6ceb13d2d05 286
GregCr 0:e6ceb13d2d05 287 void SX1276MB1xAS::WriteFifo( uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 288 {
GregCr 0:e6ceb13d2d05 289 Write( 0, buffer, size );
GregCr 0:e6ceb13d2d05 290 }
GregCr 0:e6ceb13d2d05 291
GregCr 0:e6ceb13d2d05 292 void SX1276MB1xAS::ReadFifo( uint8_t *buffer, uint8_t size )
GregCr 0:e6ceb13d2d05 293 {
GregCr 0:e6ceb13d2d05 294 Read( 0, buffer, size );
GregCr 0:e6ceb13d2d05 295 }