Diff: sx1276/sx1276-inAir.cpp

Revision:

26:bc0732f29f43

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sx1276/sx1276-inAir.cpp	Sat May 28 23:07:55 2016 +0000
@@ -0,0 +1,246 @@
+#include "sx1276-inAir.h"
+
+const RadioRegisters_t SX1276inAir::RadioRegsInit[] = RADIO_INIT_REGISTERS_VALUE;
+
+SX1276inAir::SX1276inAir( RadioEvents_t *events,
+                            PinName mosi, PinName miso, PinName sclk, PinName nss, PinName reset,
+                            PinName dio0, PinName dio1, PinName dio2, PinName dio3,
+                            PinName antSwitch )
+                            : SX1276( events, mosi, miso, sclk, nss, reset, dio0, dio1, dio2, dio3, NC, NC),
+                            antSwitch( NC ),
+                            fake( NC )
+{
+    this->RadioEvents = events;
+    
+    Reset();
+    
+    RxChainCalibration( );
+    
+    IoInit( );
+    
+    SetOpMode( RF_OPMODE_SLEEP );
+    
+    IoIrqInit( dioIrq );
+    
+    RadioRegistersInit( );
+
+    SetModem( MODEM_FSK );
+
+    this->settings.State = RF_IDLE ;
+}
+
+SX1276inAir::SX1276inAir( RadioEvents_t *events )
+                        :   SX1276( events, D11/*MOSI*/, D12/*MISO*/, D13/*SCLK*/, D7/*CS*/, A5/*RST*/, D2/*DIO0*/, D8, D4, A4, NC, NC ), // For NUCLEO L152RE dio4 is on port A3
+                            antSwitch( A4 ),
+                            fake( D8 )
+{
+    this->RadioEvents = events;
+    
+    Reset();
+    
+    boardConnected = BOARD_UNKNOWN;
+    
+    DetectBoardType();
+    
+    RxChainCalibration( );
+    
+    IoInit( );
+    
+    SetOpMode( RF_OPMODE_SLEEP );
+    
+    IoIrqInit( dioIrq );
+    
+    RadioRegistersInit( );
+
+    SetModem( MODEM_FSK );
+
+    this->settings.State = RF_IDLE ;
+}
+
+//-------------------------------------------------------------------------
+//                      Board relative functions
+//-------------------------------------------------------------------------
+uint8_t SX1276inAir::DetectBoardType( void )
+{
+    //Detect board type NOT possible with inAir4, inAir9 and inAir9B boards. User has to call
+    //the SetBoardType() function to set the board type!
+    return ( boardConnected );
+}
+
+void SX1276inAir::IoInit( void )
+{
+    AntSwInit( );
+    SpiInit( );
+}
+
+void SX1276inAir::RadioRegistersInit( ){
+    uint8_t i = 0;
+    for( i = 0; i < sizeof( RadioRegsInit ) / sizeof( RadioRegisters_t ); i++ )
+    {
+        SetModem( RadioRegsInit[i].Modem );
+        Write( RadioRegsInit[i].Addr, RadioRegsInit[i].Value );
+    }    
+}
+
+void SX1276inAir::SpiInit( void )
+{
+    nss = 1;    
+    spi.format( 8,0 );   
+    uint32_t frequencyToSet = 8000000;
+    #if( defined (TARGET_NUCLEO_F446RE) || defined ( TARGET_NUCLEO_L152RE ) || defined (TARGET_NUCLEO_F401RE) || defined ( TARGET_LPC11U6X ) || defined (TARGET_K64F) || defined ( TARGET_NZ32ST1L ) || defined(TARGET_NZ32SC151) )
+        spi.frequency( frequencyToSet );
+    #elif( defined ( TARGET_KL25Z ) ) //busclock frequency is halved -> double the spi frequency to compensate
+        spi.frequency( frequencyToSet * 2 );
+    #else
+        #warning "Check the board's SPI frequency"
+    #endif
+    wait(0.1); 
+}
+
+void SX1276inAir::IoIrqInit( DioIrqHandler *irqHandlers )
+{
+    //TARGET_KL25Z board does not have pulldown resistors, seems like TARGET_K64F does have them
+    #if( defined (TARGET_NUCLEO_F446RE) || defined ( TARGET_NUCLEO_L152RE )  || defined (TARGET_NUCLEO_F401RE) ||  defined ( TARGET_LPC11U6X ) || defined (TARGET_K64F) || defined ( TARGET_NZ32ST1L ) || defined(TARGET_NZ32SC151))
+        dio0.mode(PullDown);
+        dio1.mode(PullDown);   
+        dio2.mode(PullDown);
+        dio3.mode(PullDown); 
+        //dio4.mode(PullDown);
+    #endif
+    dio0.rise( this, static_cast< TriggerInAir > ( irqHandlers[0] ) );
+    dio1.rise( this, static_cast< TriggerInAir > ( irqHandlers[1] ) );
+    dio2.rise( this, static_cast< TriggerInAir > ( irqHandlers[2] ) );
+    //For SHD3I with BOARD_INAIR4 in imod3, on FRDM-KL25Z board. It uses A4 on FRDM-KL25Z board, which does not have interrupt
+    #if( defined ( TARGET_KL25Z ) && defined(SHIELD_SHD3I_INAIR9) )
+    //Nothing to be done
+    #else
+    dio3.rise( this, static_cast< TriggerInAir > ( irqHandlers[3] ) );
+    #endif
+    //dio4.rise( this, static_cast< TriggerInAir > ( irqHandlers[4] ) );
+}
+
+void SX1276inAir::IoDeInit( void )
+{
+    //nothing
+}
+
+uint8_t SX1276inAir::GetPaSelect( uint32_t channel )
+{
+    if(boardConnected == BOARD_INAIR9B) {
+        return RF_PACONFIG_PASELECT_PABOOST;
+    }
+    else {
+        return RF_PACONFIG_PASELECT_RFO;
+    }
+}
+
+void SX1276inAir::SetAntSwLowPower( bool status )
+{
+    if( isRadioActive != status )
+    {
+        isRadioActive = status;
+    
+        if( status == false )
+        {
+            AntSwInit( );
+        }
+        else
+        {
+            AntSwDeInit( );
+        }
+    }
+}
+
+void SX1276inAir::AntSwInit( void )
+{
+    //antSwitch = 0;
+}
+
+void SX1276inAir::AntSwDeInit( void )
+{
+    //antSwitch = 0;
+}
+
+void SX1276inAir::SetAntSw( uint8_t rxTx )
+{
+    if( this->rxTx == rxTx )
+    {
+        //no need to go further
+        return;
+    }
+
+    this->rxTx = rxTx;
+
+//    if( rxTx != 0 )
+//    {
+//        antSwitch = 1;
+//    }
+//    else
+//    {
+//        antSwitch = 0;
+//    }
+}
+
+bool SX1276inAir::CheckRfFrequency( uint32_t frequency )
+{
+    //TODO: Implement check, currently all frequencies are supported
+    return true;
+}
+
+
+void SX1276inAir::Reset( void )
+{
+    reset.output();
+    reset = 0;
+    wait_ms( 1 );
+    reset.input();
+    wait_ms( 6 );
+}
+    
+void SX1276inAir::Write( uint8_t addr, uint8_t data )
+{
+    Write( addr, &data, 1 );
+}
+
+uint8_t SX1276inAir::Read( uint8_t addr )
+{
+    uint8_t data;
+    Read( addr, &data, 1 );
+    return data;
+}
+
+void SX1276inAir::Write( uint8_t addr, uint8_t *buffer, uint8_t size )
+{
+    uint8_t i;
+
+    nss = 0;
+    spi.write( addr | 0x80 );
+    for( i = 0; i < size; i++ )
+    {
+        spi.write( buffer[i] );
+    }
+    nss = 1;
+}
+
+void SX1276inAir::Read( uint8_t addr, uint8_t *buffer, uint8_t size )
+{
+    uint8_t i;
+
+    nss = 0;
+    spi.write( addr & 0x7F );
+    for( i = 0; i < size; i++ )
+    {
+        buffer[i] = spi.write( 0 );
+    }
+    nss = 1;
+}
+
+void SX1276inAir::WriteFifo( uint8_t *buffer, uint8_t size )
+{
+    Write( 0, buffer, size );
+}
+
+void SX1276inAir::ReadFifo( uint8_t *buffer, uint8_t size )
+{
+    Read( 0, buffer, size );
+}