Capstone
Updated Nov. 18th.
Dependencies: SX1276Lib_modtronix
Fork of
SX1276PingPong
by 
Semtech
Diff: main.cpp
- Revision:
- 16:4051b7c16410
- Parent:
- 15:8b35dd7c1436
--- a/main.cpp Mon Apr 24 09:29:45 2017 +0000
+++ b/main.cpp Sun Nov 19 18:22:07 2017 +0000
@@ -1,347 +1,337 @@
-#include "mbed.h"
-#include "main.h"
-#include "sx1276-hal.h"
-#include "debug.h"
-
-/* Set this flag to '1' to display debug messages on the console */
-#define DEBUG_MESSAGE 1
-
-/* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */
-#define USE_MODEM_LORA 1
-#define USE_MODEM_FSK !USE_MODEM_LORA
-
-#define RF_FREQUENCY 868000000 // Hz
-#define TX_OUTPUT_POWER 14 // 14 dBm
-
-#if USE_MODEM_LORA == 1
-
- #define LORA_BANDWIDTH 2 // [0: 125 kHz,
- // 1: 250 kHz,
- // 2: 500 kHz,
- // 3: Reserved]
- #define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
- #define LORA_CODINGRATE 1 // [1: 4/5,
- // 2: 4/6,
- // 3: 4/7,
- // 4: 4/8]
- #define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
- #define LORA_SYMBOL_TIMEOUT 5 // Symbols
- #define LORA_FIX_LENGTH_PAYLOAD_ON false
- #define LORA_FHSS_ENABLED false
- #define LORA_NB_SYMB_HOP 4
- #define LORA_IQ_INVERSION_ON false
- #define LORA_CRC_ENABLED true
-
-#elif USE_MODEM_FSK == 1
-
- #define FSK_FDEV 25000 // Hz
- #define FSK_DATARATE 19200 // bps
- #define FSK_BANDWIDTH 50000 // Hz
- #define FSK_AFC_BANDWIDTH 83333 // Hz
- #define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx
- #define FSK_FIX_LENGTH_PAYLOAD_ON false
- #define FSK_CRC_ENABLED true
-
-#else
- #error "Please define a modem in the compiler options."
-#endif
-
-#define RX_TIMEOUT_VALUE 3500 // in ms
-#define BUFFER_SIZE 32 // Define the payload size here
-
-#if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
-DigitalOut led( LED2 );
-#else
-DigitalOut led( LED1 );
-#endif
-
-/*
- * Global variables declarations
- */
-typedef enum
-{
- LOWPOWER = 0,
- IDLE,
-
- RX,
- RX_TIMEOUT,
- RX_ERROR,
-
- TX,
- TX_TIMEOUT,
-
- CAD,
- CAD_DONE
-}AppStates_t;
-
-volatile AppStates_t State = LOWPOWER;
-
-/*!
- * Radio events function pointer
- */
-static RadioEvents_t RadioEvents;
-
-/*
- * Global variables declarations
- */
-SX1276MB1xAS Radio( NULL );
-
-const uint8_t PingMsg[] = "PING";
-const uint8_t PongMsg[] = "PONG";
-
-uint16_t BufferSize = BUFFER_SIZE;
-uint8_t Buffer[BUFFER_SIZE];
-
-int16_t RssiValue = 0.0;
-int8_t SnrValue = 0.0;
-
-int main( void )
-{
- uint8_t i;
- bool isMaster = true;
-
- debug( "\n\n\r SX1276 Ping Pong Demo Application \n\n\r" );
-
- // Initialize Radio driver
- RadioEvents.TxDone = OnTxDone;
- RadioEvents.RxDone = OnRxDone;
- RadioEvents.RxError = OnRxError;
- RadioEvents.TxTimeout = OnTxTimeout;
- RadioEvents.RxTimeout = OnRxTimeout;
- Radio.Init( &RadioEvents );
-
- // verify the connection with the board
- while( Radio.Read( REG_VERSION ) == 0x00 )
- {
- debug( "Radio could not be detected!\n\r", NULL );
- wait( 1 );
- }
-
- debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1LAS ) ), "\n\r > Board Type: SX1276MB1LAS < \n\r" );
- debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1MAS ) ), "\n\r > Board Type: SX1276MB1MAS < \n\r" );
-
- Radio.SetChannel( RF_FREQUENCY );
-
-#if USE_MODEM_LORA == 1
-
- debug_if( LORA_FHSS_ENABLED, "\n\n\r > LORA FHSS Mode < \n\n\r" );
- debug_if( !LORA_FHSS_ENABLED, "\n\n\r > LORA Mode < \n\n\r" );
-
- Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
- LORA_SPREADING_FACTOR, LORA_CODINGRATE,
- LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
- LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
- LORA_IQ_INVERSION_ON, 2000 );
-
- Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
- LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
- LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,
- LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
- LORA_IQ_INVERSION_ON, true );
-
-#elif USE_MODEM_FSK == 1
-
- debug("\n\n\r > FSK Mode < \n\n\r" );
- Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
- FSK_DATARATE, 0,
- FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
- FSK_CRC_ENABLED, 0, 0, 0, 2000 );
-
- Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
- 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
- 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED,
- 0, 0, false, true );
-
-#else
-
-#error "Please define a modem in the compiler options."
-
-#endif
-
- debug_if( DEBUG_MESSAGE, "Starting Ping-Pong loop\r\n" );
-
- led = 0;
-
- Radio.Rx( RX_TIMEOUT_VALUE );
-
- while( 1 )
- {
- switch( State )
- {
- case RX:
- if( isMaster == true )
- {
- if( BufferSize > 0 )
- {
- if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
- {
- led = !led;
- debug( "...Pong\r\n" );
- // Send the next PING frame
- strcpy( ( char* )Buffer, ( char* )PingMsg );
- // We fill the buffer with numbers for the payload
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
- { // A master already exists then become a slave
- debug( "...Ping\r\n" );
- led = !led;
- isMaster = false;
- // Send the next PONG frame
- strcpy( ( char* )Buffer, ( char* )PongMsg );
- // We fill the buffer with numbers for the payload
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else // valid reception but neither a PING or a PONG message
- { // Set device as master ans start again
- isMaster = true;
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
- }
- }
- else
- {
- if( BufferSize > 0 )
- {
- if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
- {
- led = !led;
- debug( "...Ping\r\n" );
- // Send the reply to the PING string
- strcpy( ( char* )Buffer, ( char* )PongMsg );
- // We fill the buffer with numbers for the payload
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else // valid reception but not a PING as expected
- { // Set device as master and start again
- isMaster = true;
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
- }
- }
- State = LOWPOWER;
- break;
- case TX:
- led = !led;
- if( isMaster == true )
- {
- debug( "Ping...\r\n" );
- }
- else
- {
- debug( "Pong...\r\n" );
- }
- Radio.Rx( RX_TIMEOUT_VALUE );
- State = LOWPOWER;
- break;
- case RX_TIMEOUT:
- if( isMaster == true )
- {
- // Send the next PING frame
- strcpy( ( char* )Buffer, ( char* )PingMsg );
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else
- {
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
- State = LOWPOWER;
- break;
- case RX_ERROR:
- // We have received a Packet with a CRC error, send reply as if packet was correct
- if( isMaster == true )
- {
- // Send the next PING frame
- strcpy( ( char* )Buffer, ( char* )PingMsg );
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else
- {
- // Send the next PONG frame
- strcpy( ( char* )Buffer, ( char* )PongMsg );
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- State = LOWPOWER;
- break;
- case TX_TIMEOUT:
- Radio.Rx( RX_TIMEOUT_VALUE );
- State = LOWPOWER;
- break;
- case LOWPOWER:
- break;
- default:
- State = LOWPOWER;
- break;
- }
- }
-}
-
-void OnTxDone( void )
-{
- Radio.Sleep( );
- State = TX;
- debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r" );
-}
-
-void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
-{
- Radio.Sleep( );
- BufferSize = size;
- memcpy( Buffer, payload, BufferSize );
- RssiValue = rssi;
- SnrValue = snr;
- State = RX;
- debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r" );
-}
-
-void OnTxTimeout( void )
-{
- Radio.Sleep( );
- State = TX_TIMEOUT;
- debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r" );
-}
-
-void OnRxTimeout( void )
-{
- Radio.Sleep( );
- Buffer[BufferSize] = 0;
- State = RX_TIMEOUT;
- debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" );
-}
-
-void OnRxError( void )
-{
- Radio.Sleep( );
- State = RX_ERROR;
- debug_if( DEBUG_MESSAGE, "> OnRxError\n\r" );
-}
+#include "mbed.h"
+#include "sx1276Regs-LoRa.h"
+#include "sx1276-inAir.h"
+
+#define DEBUG 1
+
+#define RF_FREQUENCY 915000000 // 915MHz
+#define TX_OUTPUT_POWER 14 // 14 dBm for inAir9
+#define LORA_BANDWIDTH 7 // 0: 7.8 kHz, 1: 10.4 kHz, 2: 15.6kHz, 3: 20.8kHz,
+ // 4: 31.25kHz, 5: 41.7 kHz, 6: 62.5 kHz,
+ // 7: 125 kHz, 8: 250 kHz, 9: 500 kHz
+#define LORA_SPREADING_FACTOR 12 // SF7..SF12
+#define LORA_CODINGRATE 1 // 1=4/5, 2=4/6, 3=4/7, 4=4/8
+#define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
+#define LORA_SYMBOL_TIMEOUT 5 // Symbols
+#define LORA_FIX_LENGTH_PAYLOAD_ON false
+#define LORA_FHSS_ENABLED false
+#define LORA_NB_SYMB_HOP 4
+#define LORA_IQ_INVERSION_ON false
+#define LORA_CRC_ENABLED true
+
+#define TX_TIMEOUT_VALUE 2000000
+#define RX_TIMEOUT_VALUE 3500000 // in us
+#define BUFFER_SIZE 32 // Define the payload size here
+
+
+void OnTxDone(void);
+void OnTxTimeout(void);
+void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr);
+void OnRxTimeout(void);
+void OnRxError(void);
+
+Serial pc(USBTX, USBRX); //Use default TX and RX. Available via USB Com port when using PGM-NUCLEO programmer
+SX1276inAir radio(OnTxDone, OnTxTimeout, OnRxDone, OnRxTimeout, OnRxError, NULL, NULL);
+DigitalOut led(LED1);
+
+uint8_t Buffer[BUFFER_SIZE];
+uint16_t BufferSize = BUFFER_SIZE;
+int16_t LoRaRssi;
+int8_t LoRaSNR;
+volatile RadioState State = LOWPOWER;
+
+const uint8_t PingMsg[] = "PING";
+const uint8_t PongMsg[] = "PONG";
+
+int main() {
+ wait_ms(500); // start delay
+
+ // configure uart port
+ pc.baud(9600);
+ pc.format(8, SerialBase::None, 1);
+ pc.printf("PC printing enabled\n\r");
+ wait(2);
+ // configure radio
+ radio.SetBoardType(BOARD_INAIR9); // the correct hardware for our own board
+ pc.printf("Board type set\n\r");
+
+ /*
+ while (true) {
+ led = !led;
+ pc.printf("loop reached\n\r");
+ wait(2);
+ }*/
+
+ led = 0;
+ while (radio.Read(REG_VERSION) == 0x00)
+ {
+ pc.printf("Trying to connect to radio device\r\n");
+ wait_ms(200);
+ }
+ led = 1;
+
+ pc.printf("%u",radio.Read(REG_VERSION));
+ pc.printf("Radio is initialized\r\n");
+
+ // set radio frequency
+ radio.SetChannel(RF_FREQUENCY);
+
+ pc.printf("Freq set to 915 MHz\r\n");
+
+ // setup the modern
+ radio.SetTxConfig(
+ MODEM_LORA,
+ TX_OUTPUT_POWER,
+ 0,
+ LORA_BANDWIDTH,
+ LORA_SPREADING_FACTOR,
+ LORA_CODINGRATE,
+ LORA_PREAMBLE_LENGTH,
+ LORA_FIX_LENGTH_PAYLOAD_ON,
+ LORA_CRC_ENABLED,
+ LORA_FHSS_ENABLED,
+ LORA_NB_SYMB_HOP,
+ LORA_IQ_INVERSION_ON,
+ TX_TIMEOUT_VALUE
+ );
+ radio.SetRxConfig(
+ MODEM_LORA,
+ LORA_BANDWIDTH,
+ LORA_SPREADING_FACTOR,
+ LORA_CODINGRATE,
+ 0,
+ LORA_PREAMBLE_LENGTH,
+ LORA_SYMBOL_TIMEOUT,
+ LORA_FIX_LENGTH_PAYLOAD_ON,
+ 0,
+ LORA_CRC_ENABLED,
+ LORA_FHSS_ENABLED,
+ LORA_NB_SYMB_HOP,
+ LORA_IQ_INVERSION_ON,
+ true
+ );
+ pc.printf("TX and RX configured\r\n");
+
+ uint8_t i;
+ bool isMaster = true;
+
+ pc.printf("before .Rx\r\n");
+ radio.Rx(RX_TIMEOUT_VALUE);
+ pc.printf("RX_TIMEOUT_VALUE RX set\r\n");
+
+ State = RX_TIMEOUT;
+
+ while (1)
+ {
+ // Check for connection to radio module
+ while (radio.Read(REG_VERSION) == 0x00)
+ {
+ led = !led;
+ pc.printf("Reconnecting...\r\n");
+ wait_ms(200);
+ }
+ led = 1;
+
+ pc.printf("%s\r\n",State );
+ //pc.printf("About to check State value\r\n");
+
+ switch(State)
+ {
+ case RX_DONE:
+ if (isMaster)
+ {
+ if (BufferSize > 0)
+ {
+ if (strncmp((const char *)Buffer, (const char *)PongMsg, 4) == 0)
+ {
+ pc.printf("...Pong\r\n");
+ // send next ping frame
+ strcpy((char *)Buffer, (char *)PingMsg);
+ // fill the buffer with numbers for the payload
+ for( i = 4; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ radio.Send( Buffer, BufferSize );
+ }
+ else if (strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
+ {
+ // A master already exists then become a slave
+ pc.printf("...Ping\r\n");
+ isMaster = false;
+ // send the next pong frame
+ strcpy( ( char* )Buffer, ( char* )PongMsg );
+ // We fill the buffer with numbers for the payload
+ for( i = 4; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ radio.Send( Buffer, BufferSize );
+ }
+ else
+ {
+ isMaster = true;
+ radio.Rx(RX_TIMEOUT_VALUE);
+ }
+ }
+ }
+ else
+ {
+ if (BufferSize > 0)
+ {
+ if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
+ {
+ pc.printf( "...Ping\r\n");
+ // Send the reply to the PING string
+ strcpy( ( char* )Buffer, ( char* )PongMsg );
+ // We fill the buffer with numbers for the payload
+ for( i = 4; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ radio.Send( Buffer, BufferSize );
+ }
+ else // valid reception but not a PING as expected
+ { // Set device as master and start again
+ isMaster = true;
+ radio.Rx( RX_TIMEOUT_VALUE );
+ }
+ }
+ }
+ State = LOWPOWER;
+ pc.printf( "\r\n");
+ break;
+
+ case TX_DONE:
+ if (isMaster)
+ {
+ pc.printf("Ping...\r\n");
+ }
+ else
+ {
+ pc.printf("Pong...\r\n");
+ }
+ radio.Rx(RX_TIMEOUT_VALUE);
+ State = LOWPOWER;
+ break;
+
+ case RX_TIMEOUT:
+ if( isMaster == true )
+ {
+ pc.printf("trying to send ping\r\n");
+ // Send the next PING frame
+ strcpy( ( char* )Buffer, ( char* )PingMsg );
+ for( i = 4; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ radio.Send( Buffer, BufferSize );
+ }
+ else
+ {
+ radio.Rx( RX_TIMEOUT_VALUE );
+ }
+ State = LOWPOWER;
+ break;
+
+ case TX_TIMEOUT:
+ radio.Rx( RX_TIMEOUT_VALUE );
+ State = LOWPOWER;
+ break;
+
+ case RX_ERROR:
+ // We have received a Packet with a CRC error, send reply as if packet was correct
+ if( isMaster == true )
+ {
+ // Send the next PING frame
+ strcpy( ( char* )Buffer, ( char* )PingMsg );
+ for( i = 4; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ radio.Send( Buffer, BufferSize );
+ }
+ else
+ {
+ // Send the next PONG frame
+ strcpy( ( char* )Buffer, ( char* )PongMsg );
+ for( i = 4; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ radio.Send( Buffer, BufferSize );
+ }
+ State = LOWPOWER;
+ break;
+
+ case LOWPOWER:
+ break;
+
+ default:
+ State = LOWPOWER;
+ break;
+ }
+ }
+}
+
+
+void OnTxDone(void)
+{
+ radio.Sleep();
+ State = TX_DONE;
+
+#if DEBUG == 1
+ pc.printf("OnTxDone\r\n");
+#endif
+}
+
+void OnTxTimeout(void)
+{
+ radio.Sleep();
+ State = TX_TIMEOUT;
+
+#if DEBUG == 1
+ pc.printf("OnTxTimeout\r\n");
+#endif
+}
+
+void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
+{
+ radio.Sleep();
+ BufferSize = size;
+ memcpy(Buffer, payload, BufferSize);
+ LoRaRssi = rssi;
+ LoRaSNR = snr;
+ State = RX_DONE;
+
+#if DEBUG == 1
+ pc.printf("OnRxDone\r\n");
+#endif
+}
+
+void OnRxTimeout(void)
+{
+ radio.Sleep();
+ Buffer[BufferSize] = 0;
+ State = RX_TIMEOUT;
+
+#if DEBUG == 1
+ pc.printf("OnRxTimeout\r\n");
+#endif
+}
+
+void OnRxError(void)
+{
+ radio.Sleep();
+ State = RX_ERROR;
+
+#if DEBUG == 1
+ pc.printf("OnRxError\r\n");
+#endif
+}