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SX1272PingPong
by 
Semtech
Diff: main.cpp
- Revision:
- 15:77a116408c4b
- Parent:
- 14:ab6eecd44b7a
- Child:
- 16:0cf0cb508f19
--- a/main.cpp Mon Apr 24 09:29:13 2017 +0000
+++ b/main.cpp Fri Jun 01 09:32:13 2018 +0000
@@ -10,16 +10,17 @@
#define USE_MODEM_LORA 1
#define USE_MODEM_FSK !USE_MODEM_LORA
-#define RF_FREQUENCY 868000000 // Hz
+#define RF_FREQUENCY 850000000 // Hz frequenza centrale 868
#define TX_OUTPUT_POWER 14 // 14 dBm
#if USE_MODEM_LORA == 1
- #define LORA_BANDWIDTH 2 // [0: 125 kHz,
+ #define LORA_BANDWIDTH 2 //banda
+ // [0: 125 kHz,
// 1: 250 kHz,
// 2: 500 kHz,
// 3: Reserved]
- #define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
+ #define LORA_SPREADING_FACTOR 12 // [SF7..SF12]
#define LORA_CODINGRATE 1 // [1: 4/5,
// 2: 4/6,
// 3: 4/7,
@@ -55,6 +56,8 @@
DigitalOut led( LED1 );
#endif
+#define waitTime 1000 //Wait Time
+
/*
* Global variables declarations
*/
@@ -86,8 +89,8 @@
*/
SX1272MB2xAS Radio( NULL );
-const uint8_t PingMsg[] = "PING";
-const uint8_t PongMsg[] = "PONG";
+const uint8_t PingMsg[] = "alfa"; //messaggio Ping
+const uint8_t PongMsg[] = "beta";
uint16_t BufferSize = BUFFER_SIZE;
uint8_t Buffer[BUFFER_SIZE];
@@ -95,10 +98,21 @@
int16_t RssiValue = 0.0;
int8_t SnrValue = 0.0;
+/************************/
+DigitalIn button1(PC_13);
+Timer t;
+char tempo[5];
+float somma, tmisura;
+int misure=10;
+
+bool oktx=1;
+/************************/
+
+
int main( void )
{
uint8_t i;
- bool isMaster = true;
+ bool isMaster = true; //parte come master
debug( "\n\n\r SX1272 Ping Pong Demo Application \n\n\r" );
@@ -163,19 +177,69 @@
Radio.Rx( RX_TIMEOUT_VALUE );
- while( 1 )
+
+
+ while (button1==1)
{
- switch( State )
+ }
+
+
+
+ //for(int count=0; count<misure; count++)
+ //{
+ // 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( waitTime );
+
+ /*while (oktx==0)
+ {}
+ oktx=0;*/
+
+ debug( "Start TX\r\n" );
+ t.start();
+ Radio.Send( Buffer, BufferSize ); //send
+
+ //debug ("End TX\r\n");
+
+ //t.stop();
+ wait_ms( 10000 );
+ /*tmisura=t.read();
+ somma+=tmisura;
+ t.reset();
+
+
+ debug("Tempo impiegato\r\n");
+ sprintf(tempo, "%f", tmisura);
+ debug(tempo);
+ debug("\r\n\n\n");*/
+
+
+ //}
+
+ somma=somma/misure;
+ debug("Tempo medio di TX\r\n");
+ sprintf(tempo, "%f", somma);
+ debug(tempo);
+ debug("\r\n\n\n");
+
+
+ /* switch( State )
{
case RX:
if( isMaster == true )
{
if( BufferSize > 0 )
{
- if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
- {
+ if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 ) //se sono uguali vale 0
+ { //ho ricevuto un pong
led = !led;
- debug( "...Pong\r\n" );
+ debug( "Master RX...Pong\r\n" );
// Send the next PING frame
strcpy( ( char* )Buffer, ( char* )PingMsg );
// We fill the buffer with numbers for the payload
@@ -183,12 +247,12 @@
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
+ wait_ms( waitTime );
+ Radio.Send( Buffer, BufferSize ); //mando il ping
}
else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
{ // A master already exists then become a slave
- debug( "...Ping\r\n" );
+ debug( "Master RX...Ping\r\n" ); //ho ricevuto un ping
led = !led;
isMaster = false;
// Send the next PONG frame
@@ -198,24 +262,24 @@
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
+ wait_ms( waitTime );
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 );
+ Radio.Rx( RX_TIMEOUT_VALUE ); //re non ho ricevuto niente timeout
}
}
}
- else
+ else //s sono lo slave
{
if( BufferSize > 0 )
{
if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
{
led = !led;
- debug( "...Ping\r\n" );
+ debug( "Slave RX...Ping\r\n" );
// Send the reply to the PING string
strcpy( ( char* )Buffer, ( char* )PongMsg );
// We fill the buffer with numbers for the payload
@@ -223,27 +287,27 @@
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
+ wait_ms( waitTime );
+ Radio.Send( Buffer, BufferSize ); //trasmetto un pong
}
else // valid reception but not a PING as expected
{ // Set device as master and start again
- isMaster = true;
+ isMaster = true; //divento master
Radio.Rx( RX_TIMEOUT_VALUE );
}
}
}
- State = LOWPOWER;
+ State = LOWPOWER; //vado nello stato lowpower
break;
case TX:
led = !led;
if( isMaster == true )
{
- debug( "Ping...\r\n" );
+ debug( "Master TX Ping...\r\n" );
}
else
{
- debug( "Pong...\r\n" );
+ debug( "Slave TX Pong...\r\n" );
}
Radio.Rx( RX_TIMEOUT_VALUE );
State = LOWPOWER;
@@ -257,7 +321,7 @@
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
+ wait_ms( waitTime );
Radio.Send( Buffer, BufferSize );
}
else
@@ -276,7 +340,7 @@
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
+ wait_ms( waitTime );
Radio.Send( Buffer, BufferSize );
}
else
@@ -287,7 +351,7 @@
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
+ wait_ms( waitTime );
Radio.Send( Buffer, BufferSize );
}
State = LOWPOWER;
@@ -302,14 +366,30 @@
State = LOWPOWER;
break;
}
- }
+ }*/
}
void OnTxDone( void )
{
Radio.Sleep( );
State = TX;
+ //oktx=1;
debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r" );
+ t.stop();
+
+ tmisura=t.read();
+ somma+=tmisura;
+ t.reset();
+
+ debug("Tempo impiegato\r\n");
+ sprintf(tempo, "%f", tmisura);
+ debug(tempo);
+ debug("\r\n\n\n");
+
+ wait (10);
+
+ Radio.Send( Buffer, BufferSize ); //send
+
}
void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
@@ -321,6 +401,7 @@
SnrValue = snr;
State = RX;
debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r" );
+ oktx=1;
}
void OnTxTimeout( void )