Diff: main.cpp

Revision:

1:22e02d1cfbca

Parent:

0:eb7d6a52f42d

Child:

2:2bedac9faed3

--- a/main.cpp	Mon Mar 13 14:42:55 2017 +0000
+++ b/main.cpp	Wed Mar 15 13:16:44 2017 +0000
@@ -0,0 +1,462 @@
+/*
+  ______                              _
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+    (C)2017 Semtech
+
+Description: Main program
+
+Maintainer: Gregory Cristian & Gilbert Menth
+*/
+
+#include "mbed.h"
+#include "radio.h"
+#include "sx1280-hal.h"
+
+
+/*!
+ * \brief Used to display firmware version on RS232
+ */
+#define FIRMWARE_VERSION ( ( char* )"Firmware Version: 170314A" )
+
+/*!
+ * Use the Ping Ping in uncommented Mode
+ */
+//#define MODE_BLE
+#define MODE_LORA
+//#define MODE_GENERIC
+//#define MODE_FLRC
+
+
+/*!
+ * \brief Defines the nominal frequency
+ */
+#define RF_FREQUENCY                                2400000000UL // Hz
+
+/*!
+ * \brief Defines the output power in dBm
+ *
+ * \remark The range of the output power is [-18..+13] dBm
+ */
+#define TX_OUTPUT_POWER                             13
+
+/*!
+ * \brief Defines the states of the application
+ */
+typedef enum
+{
+    APP_LOWPOWER,
+    APP_RX,
+    APP_RX_TIMEOUT,
+    APP_RX_ERROR,
+    APP_TX,
+    APP_TX_TIMEOUT,
+}AppStates_t;
+
+/*!
+ * \brief Defines the buffer size, i.e. the payload size
+ */
+#define BUFFER_SIZE                                 16
+
+/*!
+ * \brief Define the possible message type for this application
+ */
+const uint8_t PingMsg[] = "PING";
+const uint8_t PongMsg[] = "PONG";
+
+/*!
+ * \brief Defines the size of the token defining message type in the payload
+ */
+#define PINGPONGSIZE                    4
+
+/*!
+ * \brief The size of the buffer
+ */
+uint8_t BufferSize = BUFFER_SIZE;
+
+/*!
+ * \brief The buffer
+ */
+uint8_t Buffer[BUFFER_SIZE];
+
+/*!
+ * \brief The State of the application
+ */
+AppStates_t AppState = APP_LOWPOWER;
+
+int8_t RssiValue = 0;
+int8_t SnrValue = 0;
+
+/*!
+ * \brief Function to be executed on Radio Tx Done event
+ */
+void OnTxDone( void );
+
+/*!
+ * \brief Function to be executed on Radio Rx Done event
+ */
+void OnRxDone( void );
+
+/*!
+ * \brief Function executed on Radio Tx Timeout event
+ */
+void OnTxTimeout( void );
+
+/*!
+ * \brief Function executed on Radio Rx Timeout event
+ */
+void OnRxTimeout( void );
+
+/*!
+ * \brief Function executed on Radio Rx Error event
+ */
+void OnRxError( IrqErrorCode_t );
+
+/*!
+ * \brief All the callbacks are stored in a structure
+ */
+RadioCallbacks_t callbacks =
+{
+    &OnTxDone,        // txDone
+    &OnRxDone,        // rxDone
+    NULL,             // syncWordDone
+    NULL,             // headerDone
+    &OnTxTimeout,     // txTimeout
+    &OnRxTimeout,     // rxTimeout
+    &OnRxError,       // rxError
+    NULL,             // rangingDone
+    NULL,             // cadDone
+};
+
+// mosi, miso, sclk, nss, busy, dio1, dio2, dio3, rst, callbacks...
+SX1280Hal Radio( D11, D12, D13, D7, D3, D5, NC, NC, A0, &callbacks );
+
+DigitalOut ANT_SW( A3 );
+DigitalOut TxLed( A4 );
+DigitalOut RxLed( A5 );
+
+/*!
+ * \brief Define IO for Unused Pin
+ */
+DigitalOut F_CS( D6 );      // MBED description of pin
+DigitalOut SD_CS( D8 );     // MBED description of pin
+
+/*!
+ * \brief Number of tick size steps for tx timeout
+ */
+#define TX_TIMEOUT_VALUE                            100 // ms
+
+/*!
+ * \brief Number of tick size steps for rx timeout
+ */
+#define RX_TIMEOUT_VALUE                            100 // ms
+
+/*!
+ * \brief Size of ticks (used for Tx and Rx timeout)
+ */
+#define RX_TIMEOUT_TICK_SIZE                        RADIO_TICK_SIZE_1000_US
+
+/*!
+ * \brief Mask of IRQs to listen to in rx mode
+ */
+uint16_t RxIrqMask = IRQ_RX_DONE | IRQ_RX_TX_TIMEOUT;
+
+/*!
+ * \brief Mask of IRQs to listen to in tx mode
+ */
+uint16_t TxIrqMask = IRQ_TX_DONE | IRQ_RX_TX_TIMEOUT;
+
+/*!
+ * \brief Locals parameters and status for radio API
+ * NEED TO BE OPTIMIZED, COPY OF STUCTURE ALREADY EXISTING
+ */
+PacketParams_t PacketParams;
+PacketStatus_t PacketStatus;
+
+/*!
+ * \brief Specify serial datarate for UART debug output
+ */
+void baud( int baudrate )
+{
+    Serial s( USBTX, USBRX );
+
+    s.baud( baudrate );
+}
+
+int main( )
+{
+    bool isMaster = true;
+    ModulationParams_t modulationParams;
+
+    baud( 115200 );
+
+    F_CS   = 1;
+    SD_CS  = 1;
+    RxLed  = 1;
+    TxLed  = 1;
+    ANT_SW = 1;
+
+    wait_ms( 500 ); // wait for on board DC/DC start-up time
+
+    Radio.Init( );
+    Radio.SetRegulatorMode( USE_DCDC ); // Can also be set in LDO mode but consume more power
+
+    memset( &Buffer, 0x00, BufferSize );
+
+    printf( "\n\n\r     SX1280 Ping Pong Demo Application (%s)\n\n\r", FIRMWARE_VERSION );
+
+#if defined( MODE_BLE )
+
+    printf( "\nPing Pong running in BLE mode\n\r");
+    modulationParams.PacketType                   = PACKET_TYPE_BLE;
+    modulationParams.Params.Ble.BitrateBandwidth  = GEN_BLE_BR_0_125_BW_0_3;
+    modulationParams.Params.Ble.ModulationIndex   = GEN_BLE_MOD_IND_1_00;
+    modulationParams.Params.Ble.ModulationShaping = RADIO_MOD_SHAPING_BT_1_0;
+
+    packetParams.PacketType                 = PACKET_TYPE_BLE;
+    packetParams.Params.Ble.BlePacketType   = BLE_EYELONG_1_0;
+    packetParams.Params.Ble.ConnectionState = BLE_MASTER_SLAVE;
+    packetParams.Params.Ble.CrcField        = BLE_CRC_3B;
+    packetParams.Params.Ble.Whitening       = RADIO_WHITENING_OFF;
+
+#elif defined( MODE_GENERIC )
+
+    printf( "\nPing Pong running in GENERIC mode\n\r");
+    modulationParams.PacketType                       = PACKET_TYPE_GENERIC;
+    modulationParams.Params.Generic.BitrateBandwidth  = GEN_BLE_BR_0_125_BW_0_3;
+    modulationParams.Params.Generic.ModulationIndex   = GEN_BLE_MOD_IND_1_00;
+    modulationParams.Params.Generic.ModulationShaping = RADIO_MOD_SHAPING_BT_1_0;
+
+    packetParams.PacketType                    = PACKET_TYPE_GENERIC;
+    packetParams.Params.Generic.PreambleLength = PREAMBLE_LENGTH_32_BITS;
+    packetParams.Params.Generic.SyncWordLength = GEN_SYNCWORD_LENGTH_5_BYTE;
+    packetParams.Params.Generic.SyncWordMatch  = RADIO_RX_MATCH_SYNCWORD_1;
+    packetParams.Params.Generic.HeaderType     = RADIO_PACKET_VARIABLE_LENGTH;
+    packetParams.Params.Generic.PayloadLength  = 15;
+    packetParams.Params.Generic.CrcLength      = RADIO_CRC_3_BYTES;
+    packetParams.Params.Generic.Whitening      = RADIO_WHITENING_ON;
+
+#elif defined( MODE_LORA )
+
+    printf( "\nPing Pong running in LORA mode\n\r");
+    modulationParams.PacketType                  = PACKET_TYPE_LORA;
+    modulationParams.Params.LoRa.SpreadingFactor = LORA_SF7;
+    modulationParams.Params.LoRa.Bandwidth       = LORA_BW_0400;
+    modulationParams.Params.LoRa.CodingRate      = LORA_CR_4_5;
+
+    PacketParams.PacketType                 = PACKET_TYPE_LORA;
+    PacketParams.Params.LoRa.PreambleLength = 0x08;
+    PacketParams.Params.LoRa.HeaderType     = LORA_PACKET_VARIABLE_LENGTH;
+    PacketParams.Params.LoRa.PayloadLength  = 15;
+    PacketParams.Params.LoRa.CrcMode        = LORA_CRC_ON;
+    PacketParams.Params.LoRa.InvertIQ       = LORA_IQ_INVERTED;
+
+#elif defined( MODE_FLRC )
+
+    printf( "\nPing Pong running in FLRC mode\n\r");
+    modulationParams.PacketType                    = PACKET_TYPE_FLRC;
+    modulationParams.Params.Flrc.BitrateBandwidth  = FLRC_BR_0_260_BW_0_3;
+    modulationParams.Params.Flrc.CodingRate        = FLRC_CR_1_2;
+    modulationParams.Params.Flrc.ModulationShaping = RADIO_MOD_SHAPING_BT_1_0;
+
+    packetParams.PacketType                 = PACKET_TYPE_FLRC;
+    packetParams.Params.Flrc.PreambleLength = PREAMBLE_LENGTH_32_BITS;
+    packetParams.Params.Flrc.SyncWordLength = FLRC_SYNCWORD_LENGTH_4_BYTE;
+    packetParams.Params.Flrc.SyncWordMatch  = RADIO_RX_MATCH_SYNCWORD_1;
+    packetParams.Params.Flrc.HeaderType     = RADIO_PACKET_VARIABLE_LENGTH;
+    packetParams.Params.Flrc.PayloadLength  = 15;
+    packetParams.Params.Flrc.CrcLength      = RADIO_CRC_3_BYTES;
+    packetParams.Params.Flrc.Whitening      = RADIO_WHITENING_OFF;
+
+#else
+#error "Please select the mode of operation for the Ping Ping demo"
+#endif
+
+    Radio.SetStandby( STDBY_RC );
+    Radio.SetPacketType( modulationParams.PacketType );
+    Radio.SetModulationParams( &modulationParams );
+    Radio.SetPacketParams( &PacketParams );
+
+    Radio.SetRfFrequency( RF_FREQUENCY );
+    Radio.SetBufferBaseAddresses( 0x00, 0x00 );
+    Radio.SetTxParams( TX_OUTPUT_POWER, RADIO_RAMP_20_US );
+
+    // only used in GENERIC and BLE mode
+    Radio.SetSyncWord( 1, ( uint8_t[] ){ 0xDD, 0xA0, 0x96, 0x69, 0xDD } );
+
+    RxLed = 0;
+    TxLed = 0;
+
+    Radio.SetDioIrqParams( RxIrqMask, RxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+    Radio.SetRx( ( TickTime_t ) { RX_TIMEOUT_TICK_SIZE, RX_TIMEOUT_VALUE } );
+    AppState = APP_LOWPOWER;
+
+    while( 1 )
+    {
+        switch( AppState )
+        {
+            case APP_RX:
+                AppState = APP_LOWPOWER;
+                RxLed = !RxLed;
+                Radio.GetPayload( Buffer, &BufferSize, BUFFER_SIZE );
+                if( isMaster == true )
+                {
+                    if( BufferSize > 0 )
+                    {
+                        if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, PINGPONGSIZE ) == 0 )
+                        {
+                            printf( "...Pong\r\n" );
+                            memcpy( Buffer, PingMsg, PINGPONGSIZE );
+                            Radio.SetDioIrqParams( TxIrqMask, TxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                            Radio.SendPayload( Buffer, BufferSize, ( TickTime_t ){ RX_TIMEOUT_TICK_SIZE, TX_TIMEOUT_VALUE } );
+                        }
+                        else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, PINGPONGSIZE ) == 0 )
+                        {
+                            // A master already exists then become a slave
+                            printf( "...Ping\r\n" );
+                            isMaster = false;
+                            memcpy( Buffer, PongMsg, PINGPONGSIZE );
+                            Radio.SetDioIrqParams( TxIrqMask, TxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                            Radio.SendPayload( Buffer, BufferSize, ( TickTime_t ){ RX_TIMEOUT_TICK_SIZE, TX_TIMEOUT_VALUE } );
+                        }
+                        else // valid reception but neither a PING or a PONG message
+                        {    // Set device as master ans start again
+                            isMaster = true;
+                            Radio.SetDioIrqParams( RxIrqMask, RxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                            Radio.SetRx( ( TickTime_t ) { RX_TIMEOUT_TICK_SIZE, RX_TIMEOUT_VALUE } );
+                        }
+                    }
+                }
+                else
+                {
+                    if( BufferSize > 0 )
+                    {
+                        if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, PINGPONGSIZE ) == 0 )
+                        {
+                            printf( "...Ping\r\n" );
+                            memcpy( Buffer, PongMsg, 4 );
+                            Radio.SetDioIrqParams( TxIrqMask, TxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                            Radio.SendPayload( Buffer, BufferSize, ( TickTime_t ){ RX_TIMEOUT_TICK_SIZE, TX_TIMEOUT_VALUE } );
+                        }
+                        else // valid reception but not a PING as expected
+                        {
+                            isMaster = true;
+                            Radio.SetDioIrqParams( RxIrqMask, RxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                            Radio.SetRx( ( TickTime_t ) { RX_TIMEOUT_TICK_SIZE, RX_TIMEOUT_VALUE } );
+                        }
+                    }
+                }
+                break;
+
+            case APP_TX:
+                AppState = APP_LOWPOWER;
+                TxLed = !TxLed;
+                if( isMaster == true )
+                {
+                    printf( "Ping...\r\n" );
+                }
+                else
+                {
+                    printf( "Pong...\r\n" );
+                }
+                Radio.SetDioIrqParams( RxIrqMask, RxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                Radio.SetRx( ( TickTime_t ) { RX_TIMEOUT_TICK_SIZE, RX_TIMEOUT_VALUE } );
+                break;
+
+            case APP_RX_TIMEOUT:
+                AppState = APP_LOWPOWER;
+                if( isMaster == true )
+                {
+                    // Send the next PING frame
+                    memcpy( Buffer, PingMsg, PINGPONGSIZE );
+                    Radio.SetDioIrqParams( TxIrqMask, TxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                    Radio.SendPayload( Buffer, BufferSize, ( TickTime_t ){ RX_TIMEOUT_TICK_SIZE, TX_TIMEOUT_VALUE } );
+                }
+                else
+                {
+                    Radio.SetDioIrqParams( RxIrqMask, RxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                    Radio.SetRx( ( TickTime_t ) { RX_TIMEOUT_TICK_SIZE, RX_TIMEOUT_VALUE } );
+                }
+                break;
+
+            case APP_RX_ERROR:
+                AppState = APP_LOWPOWER;
+                // We have received a Packet with a CRC error, send reply as if packet was correct
+                if( isMaster == true )
+                {
+                    // Send the next PING frame
+                    memcpy( Buffer, PingMsg, PINGPONGSIZE );
+                    Radio.SetDioIrqParams( TxIrqMask, TxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                    Radio.SendPayload( Buffer, BufferSize, ( TickTime_t ){ RX_TIMEOUT_TICK_SIZE, TX_TIMEOUT_VALUE } );
+                }
+                else
+                {
+                    // Send the next PONG frame
+                    memcpy( Buffer, PongMsg, PINGPONGSIZE );
+                    Radio.SetDioIrqParams( TxIrqMask, TxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                    Radio.SendPayload( Buffer, BufferSize, ( TickTime_t ){ RX_TIMEOUT_TICK_SIZE, TX_TIMEOUT_VALUE } );
+                }
+                break;
+
+            case APP_TX_TIMEOUT:
+                AppState = APP_LOWPOWER;
+                Radio.SetDioIrqParams( RxIrqMask, RxIrqMask, IRQ_RADIO_NONE, IRQ_RADIO_NONE );
+                Radio.SetRx( ( TickTime_t ) { RX_TIMEOUT_TICK_SIZE, RX_TIMEOUT_VALUE } );
+                break;
+
+            case APP_LOWPOWER:
+                break;
+
+            default:
+                // Set low power
+                break;
+        }
+    }
+}
+
+void OnTxDone( void )
+{
+    AppState = APP_TX;
+}
+
+void OnRxDone( void )
+{
+    AppState = APP_RX;/*
+    Radio.GetPacketStatus(&packetStatus);
+#if ( defined( MODE_BLE ) || defined( MODE_GENERIC ) )
+    RssiValue = packetStatus.Ble.RssiSync;
+    printf("rssi: %d\n\r", RssiValue);
+#elif defined( MODE_LORA )
+    RssiValue = packetStatus.Lr24.RssiPkt;
+    SnrValue = packetStatus.Lr24.SnrPkt;
+    printf("rssi: %d; snr: %d\n\r", RssiValue, SnrValue );
+#endif*/
+}
+
+void OnTxTimeout( void )
+{
+    AppState = APP_TX_TIMEOUT;
+    printf( "<>>>>>>>>TXE\r\n" );
+}
+
+void OnRxTimeout( void )
+{
+    AppState = APP_RX_TIMEOUT;
+}
+
+void OnRxError( IrqErrorCode_t errorCode )
+{
+    AppState = APP_RX_ERROR;
+    printf( "RXE<>>>>>>>>\r\n" );
+}
+
+void OnRangingDone( IrqRangingCode_t val )
+{
+}
+
+void OnCadDone( bool channelActivityDetected )
+{
+}