Huy Nguyen
Simple example Ping Pong from Semtech, updated new lib
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SX1276PingPong
by 
Semtech
i'm using stm32 nucleo l46rg and stm32 nucleo l073 with sx1276mb1mas.
Revision 7:c1bbd6c56979, committed 2014-09-26
- Comitter:
- GregCr
- Date:
- Fri Sep 26 13:01:01 2014 +0000
- Parent:
- 6:44752b4f8ab1
- Child:
- 8:f956dee63a56
- Commit message:
- Change payload buffer handling
Changed in this revision
| SX1276Lib.lib | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/SX1276Lib.lib Tue Sep 23 14:24:56 2014 +0000 +++ b/SX1276Lib.lib Fri Sep 26 13:01:01 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/GregCr/code/SX1276Lib/#0fe3e0e8007b +http://mbed.org/users/GregCr/code/SX1276Lib/#b420e9c3d6fe
--- a/main.cpp Tue Sep 23 14:24:56 2014 +0000
+++ b/main.cpp Fri Sep 26 13:01:01 2014 +0000
@@ -6,7 +6,6 @@
/* Set this flag to '1' to display debug messages on the console */
#define DEBUG_MESSAGE 0
-
/* 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
@@ -47,7 +46,7 @@
#error "Please define a modem in the compiler options."
#endif
-#define RX_TIMEOUT_VALUE 3000000 // in us
+#define RX_TIMEOUT_VALUE 3500000 // in us
#define BUFFER_SIZE 32 // Define the payload size here
#if( defined ( TARGET_KL25Z ) )
@@ -60,10 +59,8 @@
* Global variables declarations
*/
typedef RadioState States_t;
+volatile States_t State = LOWPOWER;
-/*
- * Global variables declarations
- */
SX1276MB1xAS Radio( OnTxDone, OnTxTimeout, OnRxDone, OnRxTimeout, OnRxError, NULL, NULL );
const uint8_t PingMsg[] = "PING";
@@ -72,8 +69,6 @@
uint16_t BufferSize = BUFFER_SIZE;
uint8_t Buffer[BUFFER_SIZE];
-volatile States_t State = LOWPOWER;
-
int16_t RssiValue = 0.0;
int8_t SnrValue = 0.0;
@@ -82,46 +77,30 @@
uint8_t i;
bool isMaster = true;
- debug( "\n\r\n\r SX1276 Ping Pong Demo Application \n\r" );
-
-#if defined TARGET_NUCLEO_L152RE
- debug_if( DEBUG_MESSAGE, " > Nucleo-L152RE Platform <\r\n", NULL );
-#elif defined TARGET_KL25Z
- debug_if( DEBUG_MESSAGE, " > KL25Z Platform <\r\n", NULL );
-#elif defined TARGET_LPC11U6X
- debug_if( DEBUG_MESSAGE, " > LPC11U6X Platform <\r\n", NULL );
-#else
- debug_if( DEBUG_MESSAGE, " > Untested Platform <\r\n", NULL );
-#endif
+ debug( "\n\n\r SX1276 Ping Pong Demo Application \n\n\r" );
- if( Radio.DetectBoardType( ) == SX1276MB1LAS )
+ // verify the connection with the board
+ while( Radio.Read( REG_VERSION ) == 0x00 )
{
- debug_if( DEBUG_MESSAGE, "\n\r > Board Type: SX1276MB1LAS < \n\r", NULL );
+ debug( "Radio could not be detected!\n\r", NULL );
+ wait( 1 );
}
- else
- {
- debug_if( DEBUG_MESSAGE, "\n\r > Board Type: SX1276MB1MAS < \n\r", NULL );
- }
-
- debug_if( DEBUG_MESSAGE, " > Chipset Version = 0x%x < \n\r", Radio.Read( REG_VERSION ) );
+
+ 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
- if( LORA_FHSS_ENABLED == true )
- {
- debug("\n\r\n\r > LORA FHSS Mode < \n\r\n\r");
- }
- else
- {
- debug("\n\r\n\r > LORA Mode < \n\r\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, 3000000 );
+ LORA_IQ_INVERSION_ON, 2000000 );
Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
@@ -131,11 +110,11 @@
#elif USE_MODEM_FSK == 1
- debug("\n\r\n\r > FSK Mode < \n\r\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, 3000000 );
+ FSK_CRC_ENABLED, 0, 0, 0, 2000000 );
Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
@@ -148,7 +127,7 @@
#endif
- debug_if( DEBUG_MESSAGE, "Starting Ping-Pong loop\r\n", NULL );
+ debug_if( DEBUG_MESSAGE, "Starting Ping-Pong loop\r\n" );
led = 0;
@@ -168,10 +147,7 @@
led = !led;
debug( "...Pong\r\n" );
// Send the next PING frame
- Buffer[0] = 'P';
- Buffer[1] = 'I';
- Buffer[2] = 'N';
- Buffer[3] = 'G';
+ strcpy( ( char* )Buffer, ( char* )PingMsg );
// We fill the buffer with numbers for the payload
for( i = 4; i < BufferSize; i++ )
{
@@ -185,11 +161,8 @@
debug( "...Ping\r\n" );
led = !led;
isMaster = false;
- // Send the next PING frame
- Buffer[0] = 'P';
- Buffer[1] = 'O';
- Buffer[2] = 'N';
- Buffer[3] = 'G';
+ // 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++ )
{
@@ -214,10 +187,7 @@
led = !led;
debug( "...Ping\r\n" );
// Send the reply to the PING string
- Buffer[0] = 'P';
- Buffer[1] = 'O';
- Buffer[2] = 'N';
- Buffer[3] = 'G';
+ strcpy( ( char* )Buffer, ( char* )PongMsg );
// We fill the buffer with numbers for the payload
for( i = 4; i < BufferSize; i++ )
{
@@ -252,10 +222,7 @@
if( isMaster == true )
{
// Send the next PING frame
- Buffer[0] = 'P';
- Buffer[1] = 'I';
- Buffer[2] = 'N';
- Buffer[3] = 'G';
+ strcpy( ( char* )Buffer, ( char* )PingMsg );
for( i = 4; i < BufferSize; i++ )
{
Buffer[i] = i - 4;
@@ -270,13 +237,11 @@
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
- Buffer[0] = 'P';
- Buffer[1] = 'I';
- Buffer[2] = 'N';
- Buffer[3] = 'G';
+ strcpy( ( char* )Buffer, ( char* )PingMsg );
for( i = 4; i < BufferSize; i++ )
{
Buffer[i] = i - 4;
@@ -287,10 +252,7 @@
else
{
// Send the next PONG frame
- Buffer[0] = 'P';
- Buffer[1] = 'O';
- Buffer[2] = 'N';
- Buffer[3] = 'G';
+ strcpy( ( char* )Buffer, ( char* )PongMsg );
for( i = 4; i < BufferSize; i++ )
{
Buffer[i] = i - 4;
@@ -317,7 +279,7 @@
{
Radio.Sleep( );
State = TX;
- debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r", NULL );
+ debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r" );
}
void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
@@ -328,14 +290,14 @@
RssiValue = rssi;
SnrValue = snr;
State = RX;
- debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r", NULL );
+ debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r" );
}
void OnTxTimeout( void )
{
Radio.Sleep( );
State = TX_TIMEOUT;
- debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r", NULL );
+ debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r" );
}
void OnRxTimeout( void )
@@ -343,13 +305,13 @@
Radio.Sleep( );
Buffer[ BufferSize ] = 0;
State = RX_TIMEOUT;
- debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r", NULL );
+ debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" );
}
void OnRxError( void )
{
Radio.Sleep( );
State = RX_ERROR;
- debug_if( DEBUG_MESSAGE, "> OnRxError\n\r", NULL );
+ debug_if( DEBUG_MESSAGE, "> OnRxError\n\r" );
}