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/*
* THE FOLLOWING FIRMWARE IS PROVIDED: (1) "AS IS" WITH NO WARRANTY; AND
* (2)TO ENABLE ACCESS TO CODING INFORMATION TO GUIDE AND FACILITATE CUSTOMER.
* CONSEQUENTLY, SEMTECH SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT OR
* CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* Copyright (C) SEMTECH S.A.
*/
/*!
* \file main.c
* \brief Ping-Pong example application on how to use Semtech's Radio
* drivers.
*
* \version 2.0
* \date Nov 21 2012
* \author Miguel Luis
*/
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include "platform.h"
#include "led.h"
#if USE_UART
#include "uart.h"
#endif
#include "radio.h"
#define BUFFER_SIZE 9 // Define the payload size here
static uint16_t BufferSize = BUFFER_SIZE; // RF buffer size
static uint8_t Buffer[BUFFER_SIZE]; // RF buffer
static uint8_t EnableMaster = true; // Master/Slave selection
tRadioDriver *Radio = NULL;
const uint8_t PingMsg[] = "PING";
const uint8_t PongMsg[] = "PONG";
/*
* Manages the master operation
*/
void OnMaster( void )
{
uint8_t i;
switch( Radio->Process( ) )
{
case RF_RX_TIMEOUT:
// Send the next PING frame
Buffer[0] = 'P';
Buffer[1] = 'I';
Buffer[2] = 'N';
Buffer[3] = 'G';
for( i = 4; i < BufferSize; i++ )
{
Buffer[i] = i - 4;
}
Radio->SetTxPacket( Buffer, BufferSize );
break;
case RF_RX_DONE:
Radio->GetRxPacket( Buffer, ( uint16_t* )&BufferSize );
if( BufferSize > 0 )
{
if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
{
// Indicates on a LED that the received frame is a PONG
LedToggle( LED_GREEN );
// Send the next PING frame
Buffer[0] = 'P';
Buffer[1] = 'I';
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;
}
Radio->SetTxPacket( Buffer, BufferSize );
}
else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
{ // A master already exists then become a slave
EnableMaster = false;
LedOff( LED_RED );
}
}
break;
case RF_TX_DONE:
// Indicates on a LED that we have sent a PING
LedToggle( LED_RED );
Radio->StartRx( );
break;
default:
break;
}
}
/*
* Manages the slave operation
*/
void OnSlave( void )
{
uint8_t i;
switch( Radio->Process( ) )
{
case RF_RX_DONE:
Radio->GetRxPacket( Buffer, ( uint16_t* )&BufferSize );
if( BufferSize > 0 )
{
if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
{
// Indicates on a LED that the received frame is a PING
LedToggle( LED_GREEN );
// Send the reply to the PONG string
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;
}
Radio->SetTxPacket( Buffer, BufferSize );
}
}
break;
case RF_TX_DONE:
// Indicates on a LED that we have sent a PONG
LedToggle( LED_RED );
Radio->StartRx( );
break;
default:
break;
}
}
/*
* Main application entry point.
*/
int main( void )
{
BoardInit( );
Radio = RadioDriverInit( );
Radio->Init( );
Radio->StartRx( );
while( 1 )
{
if( EnableMaster == true )
{
OnMaster( );
}
else
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