working demo for Nucleo-L152RE and Nucleo-F446RE with modtronix inair9 module
Dependencies: mbed
Diff: main.cpp
- Revision:
- 2:59e108728d71
- Parent:
- 1:126d70d374f6
- Child:
- 3:8b9e2a4df4b5
--- a/main.cpp Wed Aug 20 06:29:39 2014 +0000 +++ b/main.cpp Thu Aug 21 11:58:56 2014 +0000 @@ -7,10 +7,10 @@ /* 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_LORA 0 #define USE_MODEM_FSK !USE_MODEM_LORA -#define RF_FREQUENCY 868000000 // Hz +#define RF_FREQUENCY 875000000 // Hz #define TX_OUTPUT_POWER 14 // 14 dBm #if USE_MODEM_LORA == 1 @@ -31,10 +31,10 @@ #elif USE_MODEM_FSK == 1 - #define FSK_FDEV 25e3 // Hz - #define FSK_DATARATE 9600 // bps - #define FSK_BANDWIDTH 50e3 // Hz - #define FSK_AFC_BANDWIDTH 83.333e3 // Hz + #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 @@ -111,7 +111,16 @@ debug( DEBUG_MESSAGE, " > Untested Platform <\r\n" ); #endif - debug( DEBUG_MESSAGE, "SX1276 Chipset Version = 0x%x \n\r", Radio.Read( REG_VERSION ) ); + if( Radio.DetectBoardType( ) == SX1276MB1LAS ) + { + debug( DEBUG_MESSAGE, "\n\r > Board Type: SX1276MB1LAS < \n\r" ); + } + else + { + debug( DEBUG_MESSAGE, "\n\r > Board Type: SX1276MB1MAS < \n\r" ); + } + + debug( DEBUG_MESSAGE, " > Chipset Version = 0x%x < \n\r", Radio.Read( REG_VERSION ) ); Radio.SetChannel( RF_FREQUENCY ); @@ -162,7 +171,7 @@ { if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 ) { - debug( "Pong...\r\n" ); + debug( "...Pong\r\n" ); // Send the next PING frame Buffer[0] = 'P'; Buffer[1] = 'I'; @@ -176,12 +185,28 @@ wait_ms( 10 ); Radio.Send( Buffer, BufferSize ); } - else if( strncmp( ( const char* )Buffer, - ( const char* )PingMsg, 4 ) == 0 ) + else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 ) { // A master already exists then become a slave + debug( "...Ping\r\n" ); isMaster = false; + // Send the next PING frame + Buffer[0] = 'P'; + Buffer[1] = 'O'; + Buffer[2] = 'N'; + Buffer[3] = 'G'; + // 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 @@ -190,8 +215,8 @@ { if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 ) { - debug( "Ping...\r\n" ); - // Send the reply to the PONG string + debug( "...Ping\r\n" ); + // Send the reply to the PING string Buffer[0] = 'P'; Buffer[1] = 'O'; Buffer[2] = 'N'; @@ -204,20 +229,24 @@ 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: - if ( isMaster ) + case TX: + if( isMaster == true ) { - debug("...Ping\r\n" ); + debug( "Ping...\r\n" ); } else { - debug("...Pong\r\n" ); + debug( "Pong...\r\n" ); } - Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; @@ -259,7 +288,17 @@ } else { - Radio.Rx( RX_TIMEOUT_VALUE ); + // Send the next PONG frame + Buffer[0] = 'P'; + Buffer[1] = 'O'; + Buffer[2] = 'N'; + Buffer[3] = 'G'; + for( i = 4; i < BufferSize; i++ ) + { + Buffer[i] = i - 4; + } + wait_ms( 10 ); + Radio.Send( Buffer, BufferSize ); } State = LOWPOWER; break; @@ -278,13 +317,13 @@ void OnTxDone( void ) { - debug( DEBUG_MESSAGE, ":OnTxDone\n\r" ); + debug( DEBUG_MESSAGE, "> OnTxDone\n\r" ); State = TX; } void OnRxDone( uint8_t *payload, uint16_t size, int8_t rssi, int8_t snr) { - debug( DEBUG_MESSAGE, ":OnRxDone\n\r" ); + debug( DEBUG_MESSAGE, "> OnRxDone\n\r" ); Radio.Sleep( ); BufferSize = size; memcpy( Buffer, payload, BufferSize ); @@ -295,14 +334,14 @@ void OnTxTimeout( void ) { - debug( DEBUG_MESSAGE, ":OnTxTimeout\n\r" ); + debug( DEBUG_MESSAGE, "> OnTxTimeout\n\r" ); Radio.Sleep( ); State = TX_TIMEOUT; } void OnRxTimeout( void ) { - debug( DEBUG_MESSAGE, ":OnRxTimeout\n\r" ); + debug( DEBUG_MESSAGE, "> OnRxTimeout\n\r" ); Radio.Sleep( ); Buffer[ BufferSize ] = 0; State = RX_TIMEOUT; @@ -310,7 +349,7 @@ void OnRxError( void ) { - debug( DEBUG_MESSAGE, ":OnRxError\n\r" ); + debug( DEBUG_MESSAGE, "> OnRxError\n\r" ); Radio.Sleep( ); State = RX_ERROR; }