Revision 0:90252f6ec3d0, committed 2017-02-22

Comitter:

allankliu

Date:

Wed Feb 22 00:04:36 2017 +0000

Commit message:

Init code, tested on F103RB, ported to L053R8.

Changed in this revision

diff -r 000000000000 -r 90252f6ec3d0 SX1276Lib.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SX1276Lib.lib	Wed Feb 22 00:04:36 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Semtech/code/SX1276Lib/#3778e6204cc1

diff -r 000000000000 -r 90252f6ec3d0 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Feb 22 00:04:36 2017 +0000
@@ -0,0 +1,575 @@
+#include "mbed.h"
+#include "main.h"
+#include "sx1276-hal.h"
+#include "debug.h"
+
+/* 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
+
+//#define RF868  1
+
+#ifdef RF868
+
+    #define RF_FREQUENCY                                    868000000 // Hz
+    #define TX_OUTPUT_POWER                                 14        // 14 dBm
+
+#else
+
+    #define RF_FREQUENCY                                    433000000 // Hz
+    #define TX_OUTPUT_POWER                                 14        // 26 dBm
+
+#endif
+
+#if USE_MODEM_LORA == 1
+    #define LORA_BANDWIDTH  0
+    #define LORA_SPREADING_FACTOR   10
+    #define LORA_CODINGRATE     2
+
+    //#define LORA_BANDWIDTH                              2         // [0: 125 kHz,
+                                                                  //  1: 250 kHz,
+                                                                  //  2: 500 kHz,
+                                                                  //  3: Reserved]
+    //#define LORA_SPREADING_FACTOR                       7         // [SF7..SF12]
+    //#define LORA_CODINGRATE                             1         // [1: 4/5,
+                                                                  //  2: 4/6,
+                                                                  //  3: 4/7,
+                                                                  //  4: 4/8]
+    #define LORA_PREAMBLE_LENGTH                        8         // Same for Tx and Rx
+    #define LORA_SYMBOL_TIMEOUT                         5         // Symbols
+    #define LORA_FIX_LENGTH_PAYLOAD_ON                  false
+    #define LORA_FHSS_ENABLED                           false  
+    #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
+    #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
+    #define FSK_CRC_ENABLED                             true
+    
+#else
+    #error "Please define a modem in the compiler options."
+#endif
+
+#define RX_TIMEOUT_VALUE                                3500000   // in us
+#define BUFFER_SIZE                                     32        // Define the payload size here
+
+#if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
+DigitalOut led(LED2);
+#else
+//DigitalOut led(LED1);
+//DigitalOut led2(LED2);
+//DigitalOut led3(LED3);
+//DigitalOut led4(LED4);
+DigitalOut debugled(D6);
+DigitalOut debugled2(D7);
+
+#endif
+
+DigitalIn role(USER_BUTTON);  // PC_13 in Mini 103RC mini board
+Timer tx_tmr;
+
+#define UART_ENABLE
+
+#ifdef UART_ENABLE
+//Serial pc(USBTX, USBRX);
+Serial pc(SERIAL_TX, SERIAL_RX);
+#endif
+
+Ticker nwk_ticker;
+
+bool channelOccupied = false;
+
+#define NWK_SLEEP  0
+#define NWK_TX     1
+#define NWK_TX_NOK 2
+#define NWK_RX_OK  3
+#define NWK_RX_NOK 4   
+
+//#define PINGPONG
+
+void nwk_toggle()
+{
+    debugled = !debugled;
+    debugled2 = !debugled2;
+}
+
+void nwk_setmode(uint8_t mode)
+{
+    switch(mode){
+        case NWK_TX:
+        case NWK_RX_OK:
+            nwk_ticker.attach(&nwk_toggle, 1);
+            break;
+        case NWK_TX_NOK:
+        case NWK_RX_NOK:
+            nwk_ticker.attach(&nwk_toggle, 0.1);
+            break;
+        case NWK_SLEEP:
+        default:
+            debugled = 0;
+            debugled2 = 0;
+            nwk_ticker.detach();
+            break;
+    }
+}
+
+/*
+ *  Global variables declarations
+ */
+typedef enum
+{
+    ST_LOWPOWER = 0,
+    ST_IDLE,
+    
+    ST_RX,
+    ST_RX_TIMEOUT,
+    ST_RX_ERROR,
+    
+    ST_TX,
+    ST_TX_TIMEOUT,
+    
+    ST_CAD,
+    ST_CAD_DONE
+}AppStates_t;
+
+volatile AppStates_t State = ST_LOWPOWER;
+
+/*!
+ * Radio events function pointer
+ */
+static RadioEvents_t RadioEvents;
+
+/*
+ *  Global variables declarations
+ */
+SX1276MB1xAS Radio( NULL );
+
+const uint8_t PingMsg[] = "PING";
+const uint8_t PongMsg[] = "PONG";
+const uint8_t TestMsg[] = "LoRa Test";
+
+uint16_t BufferSize = BUFFER_SIZE;
+uint8_t Buffer[BUFFER_SIZE];
+
+//int16_t RssiValue = 0.0;
+//int8_t SnrValue = 0.0;
+
+int16_t RssiValue = 0;
+int8_t SnrValue = 0;
+
+#define REG_SIZE 0x70 // see below
+#define REG_IDX_SIZE 39
+
+static int my_strncmp(const char *, const char *, int);
+static void my_strcpy(char * , const char *);
+
+int my_strncmp(const char * s1, const char * s2, int size)
+{
+    int n = size;
+    for ( ; n > 0; s1++, s2++, --n)
+    if (*s1 != *s2)
+        return ((*(unsigned char *)s1 < *(unsigned char *)s2) ? -1 : +1);
+    else if (*s1 == '\0')
+        return 0;
+    return 0;    
+}
+
+void my_strcpy(char * s1, const char * s2)
+{
+    char *s = s1;
+    while ((*s++ = *s2++) != 0)
+    ;
+}
+
+void Sender ( void )
+{
+    int i;
+    my_strcpy( ( char* )Buffer, ( char* )PingMsg );
+    for( i = 4; i < BufferSize; i++ ){
+        Buffer[i] = i - 4;
+    }
+    Radio.Send( Buffer, BufferSize );
+}
+
+int main() 
+{
+    uint8_t i;
+    uint8_t regval;
+    bool isMaster = true;
+    int begin, end;
+
+    uint32_t rand;
+    debugled = 1;
+    debugled2 = 1;
+
+    isMaster = role.read();
+    
+    //debug( "\n\n\r     SX1276 Ping Pong Demo Application \n\n\r" );
+
+    // Initialize Radio driver
+    RadioEvents.TxDone = OnTxDone;
+    RadioEvents.RxDone = OnRxDone;
+    RadioEvents.RxError = OnRxError;
+    RadioEvents.TxTimeout = OnTxTimeout;
+    RadioEvents.RxTimeout = OnRxTimeout;
+    Radio.Init( &RadioEvents );
+
+    #ifdef UART_ENABLE
+    regval = Radio.Read(REG_VERSION);
+    pc.printf("%s", TestMsg);
+    pc.printf("IC Version: %02X\r\n", regval);
+    regval = Radio.Read(REG_OPMODE);
+    pc.printf("OPMODE: %02X\r\n", regval);
+    #endif
+
+    debugled = 0;
+    debugled2 = 0;
+    
+    // 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( ) == 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
+    
+    //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 );
+    
+    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_IQ_INVERSION_ON, true );
+                         
+#elif USE_MODEM_FSK == 1
+
+    //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 );
+    
+    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" ); 
+        
+    rand = Radio.Random();
+    rand = rand%1000;
+    wait_ms((uint16_t)rand);
+    
+#ifdef PINGPONG
+    Radio.Rx( RX_TIMEOUT_VALUE );
+    
+   
+    while( 1 )
+    {
+        switch( State )
+        {
+        case ST_RX:
+            if( isMaster == true )
+            {
+                if( BufferSize > 0 )
+                {
+                    #ifdef UART_ENABLE
+                    pc.printf("Received message:\r\n");
+                    pc.printf("%s",Buffer);
+                    #endif
+                    //if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
+                    if( my_strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
+                    {
+                        nwk_setmode(NWK_NORMAL);
+                        //debug( "...Pong\r\n" );
+                        // Send the next PING frame            
+                        my_strcpy( ( char* )Buffer, ( char* )PingMsg );
+                        //_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( 10 ); 
+                        Radio.Send( Buffer, BufferSize );
+                    }
+                    else if( my_strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
+                    { // A master already exists then become a slave
+                        debug( "...Ping\r\n" );
+                        //nwk_setmode(NWK_NORMAL);
+                        //led = !led;
+                        isMaster = false;
+                        // Send the next PONG frame            
+                        my_strcpy( ( char* )Buffer, ( char* )PongMsg );
+                        // 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
+            {
+                if( BufferSize > 0 )
+                {
+                    #ifdef UART_ENABLE
+                    pc.printf("Received message:\r\n");
+                    pc.printf("%s",Buffer);
+                    #endif
+                    
+                    if( my_strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
+                    {
+                        nwk_setmode(NWK_NORMAL);
+                        //led = !led;
+                        //debug( "...Ping\r\n" );
+                        // Send the reply to the PING string
+                        my_strcpy( ( char* )Buffer, ( char* )PongMsg );
+                        // 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 not a PING as expected
+                    {    // Set device as master and start again
+                        isMaster = true;
+                        Radio.Rx( RX_TIMEOUT_VALUE );
+                    }    
+                }
+            }
+            State = ST_LOWPOWER;
+            break;
+        case ST_TX:    
+            //nwk_setmode(NWK_NORMAL);
+            //led = !led; 
+            if( isMaster == true )  
+            {
+                //debug( "Ping...\r\n" );
+            }
+            else
+            {
+                //debug( "Pong...\r\n" );
+            }
+            Radio.Rx( RX_TIMEOUT_VALUE );
+            State = ST_LOWPOWER;
+            break;
+        case ST_RX_TIMEOUT:
+            //debugled = !debugled;
+            //debugled2 = !debugled2;
+            nwk_setmode(NWK_ERR);
+            if( isMaster == true )
+            {
+                // Send the next PING frame
+                my_strcpy( ( char* )Buffer, ( char* )PingMsg );
+                for( i = 4; i < BufferSize; i++ )
+                {
+                    Buffer[i] = i - 4;
+                }
+                wait_ms( 10 ); 
+                Radio.Send( Buffer, BufferSize );
+            }
+            else
+            {
+                Radio.Rx( RX_TIMEOUT_VALUE );  
+            }             
+            State = ST_LOWPOWER;
+            break;
+        case ST_RX_ERROR:
+            // We have received a Packet with a CRC error, send reply as if packet was correct
+            nwk_setmode(NWK_ERR);
+            if( isMaster == true )
+            {
+                // Send the next PING frame
+                my_strcpy( ( char* )Buffer, ( char* )PingMsg );
+                for( i = 4; i < BufferSize; i++ )
+                {
+                    Buffer[i] = i - 4;
+                }
+                wait_ms( 10 );  
+                Radio.Send( Buffer, BufferSize );
+            }
+            else
+            {
+                // Send the next PONG frame
+                my_strcpy( ( char* )Buffer, ( char* )PongMsg );
+                for( i = 4; i < BufferSize; i++ )
+                {
+                    Buffer[i] = i - 4;
+                }
+                wait_ms( 10 );  
+                Radio.Send( Buffer, BufferSize );
+            }
+            State = ST_LOWPOWER;
+            break;
+        case ST_TX_TIMEOUT:
+            nwk_setmode(NWK_ERR);
+            Radio.Rx( RX_TIMEOUT_VALUE );
+            State = ST_LOWPOWER;
+            break;
+        case ST_CAD:
+            break;
+        case ST_CAD_DONE:
+            if(channelOccupied){
+                State = ST_LOWPOWER;
+            }else{
+                // start to transmit here.
+            }
+            break;
+        case ST_LOWPOWER:
+            break;
+        default:
+            nwk_setmode(0xFF);
+            State = ST_LOWPOWER;
+            break;
+        }    
+    }
+
+#else
+    
+    if(isMaster == true){
+        tx_tmr.start();
+        begin = tx_tmr.read_ms();
+    }else{
+        Radio.Rx( RX_TIMEOUT_VALUE );
+    }
+    
+    while(1){
+        switch(State){
+        case ST_RX:
+            //nwk_setmode(NWK_RX_OK);
+            Radio.Rx( RX_TIMEOUT_VALUE );
+            State = ST_LOWPOWER;
+#ifdef UART_ENABLE
+            //pc.printf("\r\nRX OK\tRSSI:%f  SNR:%f \r\n",float(RssiValue),float(SnrValue));
+            pc.printf("\r\nRX OK\tRSSI:%d  SNR:%d \r\n",RssiValue,SnrValue);
+            pc.printf("\r\nRSSI: %02X SNR: %01X\r\n", RssiValue, SnrValue);
+#endif      
+            break;
+        case ST_TX:
+            nwk_setmode(NWK_TX);
+            State = ST_LOWPOWER;
+#ifdef UART_ENABLE
+            pc.printf("\r\nTX Done.\r\n");
+#endif                
+            break;
+        case ST_RX_TIMEOUT:
+        case ST_RX_ERROR:
+            //nwk_setmode(NWK_RX_NOK);
+            Radio.Rx( RX_TIMEOUT_VALUE );
+            State = ST_LOWPOWER;
+#ifdef UART_ENABLE
+            pc.printf("\r\nRX TIMEOUT or ERROR.\r\n");
+#endif                
+            break;
+        case ST_TX_TIMEOUT:
+            State = ST_LOWPOWER;
+            break;
+        case ST_LOWPOWER:
+            if (isMaster){
+                end = tx_tmr.read_ms();
+                if ((end-begin) >= 2000){
+                    Sender();
+                    tx_tmr.stop();
+                    tx_tmr.start();
+                    begin = tx_tmr.read_ms();
+                }
+            }
+            break;
+        default:
+            State = ST_LOWPOWER;
+            break;
+        }
+    }
+#endif
+    
+}
+
+
+void OnTxDone( void )
+{
+    Radio.Sleep( );
+    State = ST_TX;    
+    //debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r" );
+}
+
+void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
+{
+    Radio.Sleep( );
+    BufferSize = size;
+    memcpy( Buffer, payload, BufferSize );
+    RssiValue = rssi;
+    SnrValue = snr;
+    State = ST_RX;
+    nwk_setmode(NWK_RX_OK);
+    //debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r" );
+}
+
+void OnTxTimeout( void )
+{
+    Radio.Sleep( );
+    State = ST_TX_TIMEOUT;
+    //debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r" );
+}
+
+void OnRxTimeout( void )
+{
+    Radio.Sleep( );
+    Buffer[ BufferSize ] = 0;
+    State = ST_RX_TIMEOUT;
+    nwk_setmode(NWK_RX_NOK);
+    //debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" );
+}
+
+void OnRxError( void )
+{
+    Radio.Sleep( );
+    State = ST_RX_ERROR;
+    //debug_if( DEBUG_MESSAGE, "> OnRxError\n\r" );
+}
+
+// Added by allankliu
+void OnCadDone( bool channelActivityDetected )
+{
+    Radio.Sleep();
+    channelOccupied = channelActivityDetected;
+    State = ST_CAD_DONE;
+}

diff -r 000000000000 -r 90252f6ec3d0 main.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h	Wed Feb 22 00:04:36 2017 +0000
@@ -0,0 +1,56 @@
+/*
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+    ( C )2014 Semtech
+
+Description: Contains the callbacks for the IRQs and any application related details
+
+License: Revised BSD License, see LICENSE.TXT file include in the project
+
+Maintainer: Miguel Luis and Gregory Cristian
+*/
+#ifndef __MAIN_H__
+#define __MAIN_H__
+
+/*
+ * Callback functions prototypes
+ */
+/*!
+ * @brief Function to be executed on Radio Tx Done event
+ */
+void OnTxDone( void );
+
+/*!
+ * @brief Function to be executed on Radio Rx Done event
+ */
+void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );
+
+/*!
+ * @brief Function executed on Radio Tx Timeout event
+ */
+void OnTxTimeout( void );
+
+/*!
+ * @brief Function executed on Radio Rx Timeout event
+ */
+void OnRxTimeout( void );
+
+/*!
+ * @brief Function executed on Radio Rx Error event
+ */
+void OnRxError( void );
+
+/*!
+ * @brief Function executed on Radio Fhss Change Channel event
+ */
+void OnFhssChangeChannel( uint8_t channelIndex );
+
+/*!
+ * @brief Function executed on CAD Done event
+ */
+void OnCadDone( void );
+
+#endif // __MAIN_H__

diff -r 000000000000 -r 90252f6ec3d0 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Feb 22 00:04:36 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/ef9c61f8c49f
\ No newline at end of file