SX1272 Ping Pong Demo Application
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Simple Ping-Pong demo application between two SX1272MB2xAs demo board.
Application demonstrating simple Tx/Rx between two boards. By default, each board starts as a "master" and will transmit a "Ping" message, and then wait for an answer. The first board receiving a "Ping" message will become a slave and answer the "master" with a "Pong". The Ping-Pong is then started
Revision 14:ab6eecd44b7a, committed 2017-04-24
- Comitter:
- mluis
- Date:
- Mon Apr 24 09:29:13 2017 +0000
- Parent:
- 13:edb9b443c1dd
- Commit message:
- WARNING: Radio API timings changed from micro-seconds to milliseconds; ; Updated SX1272Lib and mbed libraries to the latest versions
Changed in this revision
diff -r edb9b443c1dd -r ab6eecd44b7a SX1272Lib.lib --- a/SX1272Lib.lib Wed Feb 17 09:17:46 2016 +0000 +++ b/SX1272Lib.lib Mon Apr 24 09:29:13 2017 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/teams/Semtech/code/SX1272Lib/#cd1093b6676f +http://mbed.org/teams/Semtech/code/SX1272Lib/#b988b60083a1
diff -r edb9b443c1dd -r ab6eecd44b7a main.cpp --- a/main.cpp Wed Feb 17 09:17:46 2016 +0000 +++ b/main.cpp Mon Apr 24 09:29:13 2017 +0000 @@ -31,7 +31,7 @@ #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 @@ -41,18 +41,18 @@ #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 3500000 // in us +#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); +DigitalOut led( LED2 ); #else -DigitalOut led(LED1); +DigitalOut led( LED1 ); #endif /* @@ -62,14 +62,14 @@ { LOWPOWER = 0, IDLE, - + RX, RX_TIMEOUT, RX_ERROR, - + TX, TX_TIMEOUT, - + CAD, CAD_DONE }AppStates_t; @@ -95,11 +95,11 @@ int16_t RssiValue = 0.0; int8_t SnrValue = 0.0; -int main() +int main( void ) { uint8_t i; bool isMaster = true; - + debug( "\n\n\r SX1272 Ping Pong Demo Application \n\n\r" ); // Initialize Radio driver @@ -109,60 +109,60 @@ 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( ) == SX1272MB2XAS ) ) , "\n\r > Board Type: SX1272MB2xAS < \n\r" ); - + + debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1272MB2XAS ) ), "\n\r > Board Type: SX1272MB2xAS < \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"); + + 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, 2000000 ); - + 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_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"); + 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, 2000000 ); - + 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" ); - + + debug_if( DEBUG_MESSAGE, "Starting Ping-Pong loop\r\n" ); + led = 0; - + Radio.Rx( RX_TIMEOUT_VALUE ); - + while( 1 ) { switch( State ) @@ -176,14 +176,14 @@ { led = !led; debug( "...Pong\r\n" ); - // Send the next PING frame + // Send the next PING frame strcpy( ( char* )Buffer, ( char* )PingMsg ); - // We fill the buffer with numbers for the payload + // We fill the buffer with numbers for the payload for( i = 4; i < BufferSize; i++ ) { Buffer[i] = i - 4; } - wait_ms( 10 ); + wait_ms( 10 ); Radio.Send( Buffer, BufferSize ); } else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 ) @@ -191,21 +191,21 @@ debug( "...Ping\r\n" ); led = !led; isMaster = false; - // Send the next PONG frame + // Send the next PONG frame strcpy( ( char* )Buffer, ( char* )PongMsg ); - // We fill the buffer with numbers for the payload + // We fill the buffer with numbers for the payload for( i = 4; i < BufferSize; i++ ) { Buffer[i] = i - 4; } - wait_ms( 10 ); + 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 @@ -218,25 +218,25 @@ 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 + // We fill the buffer with numbers for the payload for( i = 4; i < BufferSize; i++ ) { Buffer[i] = i - 4; } - wait_ms( 10 ); + 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; + case TX: + led = !led; if( isMaster == true ) { debug( "Ping...\r\n" ); @@ -257,13 +257,13 @@ { Buffer[i] = i - 4; } - wait_ms( 10 ); + wait_ms( 10 ); Radio.Send( Buffer, BufferSize ); } else { - Radio.Rx( RX_TIMEOUT_VALUE ); - } + Radio.Rx( RX_TIMEOUT_VALUE ); + } State = LOWPOWER; break; case RX_ERROR: @@ -276,7 +276,7 @@ { Buffer[i] = i - 4; } - wait_ms( 10 ); + wait_ms( 10 ); Radio.Send( Buffer, BufferSize ); } else @@ -287,7 +287,7 @@ { Buffer[i] = i - 4; } - wait_ms( 10 ); + wait_ms( 10 ); Radio.Send( Buffer, BufferSize ); } State = LOWPOWER; @@ -301,7 +301,7 @@ default: State = LOWPOWER; break; - } + } } } @@ -312,7 +312,7 @@ debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r" ); } -void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr) +void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) { Radio.Sleep( ); BufferSize = size; @@ -333,7 +333,7 @@ void OnRxTimeout( void ) { Radio.Sleep( ); - Buffer[ BufferSize ] = 0; + Buffer[BufferSize] = 0; State = RX_TIMEOUT; debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" ); } @@ -344,4 +344,3 @@ State = RX_ERROR; debug_if( DEBUG_MESSAGE, "> OnRxError\n\r" ); } -
diff -r edb9b443c1dd -r ab6eecd44b7a main.h --- a/main.h Wed Feb 17 09:17:46 2016 +0000 +++ b/main.h Mon Apr 24 09:29:13 2017 +0000 @@ -53,4 +53,4 @@ */ void OnCadDone( void ); -#endif // __MAIN_H__ \ No newline at end of file +#endif // __MAIN_H__
diff -r edb9b443c1dd -r ab6eecd44b7a mbed.bld --- a/mbed.bld Wed Feb 17 09:17:46 2016 +0000 +++ b/mbed.bld Mon Apr 24 09:29:13 2017 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/165afa46840b \ No newline at end of file +https://mbed.org/users/mbed_official/code/mbed/builds/97feb9bacc10 \ No newline at end of file