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Topic: Modules radio ou autres pour portée et autonomie maximale (Read 7959 times) previous topic - next topic

josse34

Bonjour!
Merci B@tto, le code et la librairie pour MSP430 de http://unboxnbeyond.wordpress.com/2013/05/22/connecting-msp430-and-stellaris-launchpad-through-nrf24l01/ semble coller mais utilisée sans autre NRF24 les sketch exemple TX ou RX n'écrivent absolument rien sur la console.

Par contre sur l'ARDUINO comment adapter l'exemple GettingStarted montrée ci-dessous de la librairie d'une IBOARD PRO sur base MEGA légèrement dérivée de la librairie http://maniacbug.wordpress.com/2011/11/02/getting-started-rf24/ pour communiquer avec le sketch exemple (RX ou TX) du MSP430?

Code: [Select]
/*
Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
Modified by Andy Karpov <andy.karpov@gmail.com>

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
*/

/**
* Example for Getting Started with nRF24L01+ radios.
*
* This is an example of how to use the RF24 class.  Write this sketch to two
* different nodes.  Put one of the nodes into 'transmit' mode by connecting
* with the serial monitor and sending a 'T'.  The ping node sends the current
* time to the pong node, which responds by sending the value back.  The ping
* node can then see how long the whole cycle took.
*/

#include <SPI.h>
#include <digitalWriteFast.h>
#include "iBoardRF24.h"
#include "printf.h"

//
// Hardware configuration
//

// Set up nRF24L01 radio on iBoard
iBoardRF24 radio(12,11,8,7,9,2);

//
// Topology
//

// Radio pipe addresses for the 2 nodes to communicate.
const uint64_t pipes[2] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0D2LL };

//
// Role management
//
// Set up role.  This sketch uses the same software for all the nodes
// in this system.  Doing so greatly simplifies testing. 
//

// The various roles supported by this sketch
typedef enum { role_ping_out = 1, role_pong_back } role_e;

// The debug-friendly names of those roles
const char* role_friendly_name[] = { "invalid", "Ping out", "Pong back"};

// The role of the current running sketch
role_e role = role_pong_back;

void setup(void)
{
  //
  // Print preamble
  //

  Serial.begin(57600);
  printf_begin();
  printf("\n\rRF24/examples/GettingStarted/\n\r");
  printf("ROLE: %s\n\r",role_friendly_name[role]);
  printf("*** PRESS 'T' to begin transmitting to the other node\n\r");

  //
  // Setup and configure rf radio
  //

  radio.begin();

  // optionally, increase the delay between retries & # of retries
  radio.setRetries(15,15);

  // optionally, reduce the payload size.  seems to
  // improve reliability
  radio.setPayloadSize(8);

  //
  // Open pipes to other nodes for communication
  //

  // This simple sketch opens two pipes for these two nodes to communicate
  // back and forth.
  // Open 'our' pipe for writing
  // Open the 'other' pipe for reading, in position #1 (we can have up to 5 pipes open for reading)

  if ( role == role_ping_out )
  {
    radio.openWritingPipe(pipes[0]);
    radio.openReadingPipe(1,pipes[1]);
  }
  else
  {
    radio.openWritingPipe(pipes[1]);
    radio.openReadingPipe(1,pipes[0]);
  }

  //
  // Start listening
  //

  radio.startListening();

  //
  // Dump the configuration of the rf unit for debugging
  //

  radio.printDetails();
}

void loop(void)
{
  //
  // Ping out role.  Repeatedly send the current time
  //

  if (role == role_ping_out)
  {
    // First, stop listening so we can talk.
    radio.stopListening();

    // Take the time, and send it.  This will block until complete
    unsigned long time = millis();
    printf("Now sending %lu...",time);
    bool ok = radio.write( &time, sizeof(unsigned long) );
   
    if (ok)
      printf("ok...");
    else
      printf("failed.\n\r");

    // Now, continue listening
    radio.startListening();

    // Wait here until we get a response, or timeout (250ms)
    unsigned long started_waiting_at = millis();
    bool timeout = false;
    while ( ! radio.available() && ! timeout )
      if (millis() - started_waiting_at > 200 )
        timeout = true;

    // Describe the results
    if ( timeout )
    {
      printf("Failed, response timed out.\n\r");
    }
    else
    {
      // Grab the response, compare, and send to debugging spew
      unsigned long got_time;
      radio.read( &got_time, sizeof(unsigned long) );

      // Spew it
      printf("Got response %lu, round-trip delay: %lu\n\r",got_time,millis()-got_time);
    }

    // Try again 1s later
    delay(1000);
  }

  //
  // Pong back role.  Receive each packet, dump it out, and send it back
  //

  if ( role == role_pong_back )
  {
    // if there is data ready
    if ( radio.available() )
    {
      // Dump the payloads until we've gotten everything
      unsigned long got_time;
      bool done = false;
      while (!done)
      {
        // Fetch the payload, and see if this was the last one.
        done = radio.read( &got_time, sizeof(unsigned long) );

        // Spew it
        printf("Got payload %lu...",got_time);

// Delay just a little bit to let the other unit
// make the transition to receiver
delay(20);
      }

      // First, stop listening so we can talk
      radio.stopListening();

      // Send the final one back.
      radio.write( &got_time, sizeof(unsigned long) );
      printf("Sent response.\n\r");

      // Now, resume listening so we catch the next packets.
      radio.startListening();
    }
  }

  //
  // Change roles
  //

  if ( Serial.available() )
  {
    char c = toupper(Serial.read());
    if ( c == 'T' && role == role_pong_back )
    {
      printf("*** CHANGING TO TRANSMIT ROLE -- PRESS 'R' TO SWITCH BACK\n\r");

      // Become the primary transmitter (ping out)
      role = role_ping_out;
      radio.openWritingPipe(pipes[0]);
      radio.openReadingPipe(1,pipes[1]);
    }
    else if ( c == 'R' && role == role_ping_out )
    {
      printf("*** CHANGING TO RECEIVE ROLE -- PRESS 'T' TO SWITCH BACK\n\r");
     
      // Become the primary receiver (pong back)
      role = role_pong_back;
      radio.openWritingPipe(pipes[1]);
      radio.openReadingPipe(1,pipes[0]);
    }
  }
}
// vim:cin:ai:sts=2 sw=2 ft=cpp


Merci!

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