Enrico Marinoni
/
LORA-SX1272MB2xAS-PP
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SX1272PingPong
by 
Semtech
Revision 15:3365ba2777d2, committed 2016-04-03
- Comitter:
- emcu
- Date:
- Sun Apr 03 17:40:50 2016 +0000
- Parent:
- 14:62abee5e269d
- Commit message:
- Demo for Semtech Lora SX1272MB2xAS 868MHz and; NUCLEO-F401RE (STM Cortex M4); ; by www.emcu.it; ; Date: Mar.2016; Ver.: 1.0.1; Project name: LORA-SX1272MB2xAS-PP
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Sun Mar 20 00:07:29 2016 +0000
+++ b/main.cpp Sun Apr 03 17:40:50 2016 +0000
@@ -5,7 +5,8 @@
by www.emcu.it
Date: Mar.2016
- Ver.: 1.0.0
+ Ver.: 1.0.1
+ Project name: LORA-SX1272MB2xAS-PP
Note:
The original project is here: https://developer.mbed.org/components/SX1272MB2xAS/
@@ -52,16 +53,21 @@
#define USE_MODEM_LORA 1
#define USE_MODEM_FSK !USE_MODEM_LORA
+/* NOTE
+ LORA_BANDWIDTH=2 & LORA_SPREADING_FACTOR=7 == MaxSpeed 41Kbit
+ LORA_BANDWIDTH=1 & LORA_SPREADING_FACTOR=12 == MediumSpeed
+*/
+
#define RF_FREQUENCY 868000000 // Hz
#define TX_OUTPUT_POWER 14 // 14 dBm
#if USE_MODEM_LORA == 1
- #define LORA_BANDWIDTH 2 // [0: 125 kHz,
+ #define LORA_BANDWIDTH 0 //2 // [0: 125 kHz,
// 1: 250 kHz,
// 2: 500 kHz,
// 3: Reserved]
- #define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
+ #define LORA_SPREADING_FACTOR 11 //7 // [SF7..SF12]
#define LORA_CODINGRATE 1 // [1: 4/5,
// 2: 4/6,
// 3: 4/7,
@@ -135,8 +141,8 @@
*/
SX1272MB2xAS Radio( NULL );
-const uint8_t PingMsg[] = "PING";
-const uint8_t PongMsg[] = "PONG";
+const uint8_t PingMsg[] = "em_PING";
+const uint8_t PongMsg[] = "em_PONG";
uint16_t BufferSize = BUFFER_SIZE;
uint8_t Buffer[BUFFER_SIZE];
@@ -150,6 +156,15 @@
bool isMaster = true;
pc.printf("\n\n\rModified by: http://www.wmcu.it \n\n\r" );
+
+ pc.printf("\n\r RF_FREQUENCY: %d Hz", RF_FREQUENCY);
+ pc.printf("\n\r TX_OUTPUT_POWER: %d dBm", TX_OUTPUT_POWER);
+ pc.printf("\n\r LORA_BANDWIDTH: %d -> 0==125KHz, 1==250KHz, 2==500KHz, 3==Reserved", LORA_BANDWIDTH);
+ pc.printf("\n\r LORA_SPREADING_FACTOR: %d (SF7..SF12)", LORA_SPREADING_FACTOR);
+ pc.printf("\n\r LORA_CODINGRATE: %d", LORA_CODINGRATE);
+ pc.printf(" -> 1==4/5; 2==4/6; 3==4/7; 4==4/8\n\r");
+
+
pc.printf("\n\rSee this link: https://developer.mbed.org/components/SX1272MB2xAS/ \n\rfor original example.\n\r ");
debug( "\n\n\r SX1272 Ping Pong Demo Application \n\n\r" );
@@ -226,7 +241,7 @@
if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
{
led = !led;
- debug( "...Pong\r\n" );
+ debug( "...em_Pong\r\n" );
// Send the next PING frame
strcpy( ( char* )Buffer, ( char* )PingMsg );
// We fill the buffer with numbers for the payload
@@ -239,7 +254,7 @@
}
else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
{ // A master already exists then become a slave
- debug( "...Ping\r\n" );
+ debug( "...em_Ping\r\n" );
led = !led;
isMaster = false;
// Send the next PONG frame
@@ -266,7 +281,7 @@
if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
{
led = !led;
- debug( "...Ping\r\n" );
+ debug( "...em_Ping\r\n" );
// Send the reply to the PING string
strcpy( ( char* )Buffer, ( char* )PongMsg );
// We fill the buffer with numbers for the payload
@@ -290,7 +305,7 @@
led = !led;
if( isMaster == true )
{
- debug( "Ping...\r\n" );
+ debug( "em_Ping...\r\n" );
}
else
{