Two SPI 2 for nrf24l01 and 3 for enc28j60 bad function

Servtes1426459984 · June 6, 2015

Hi good day ...

I'm doing a project that consists of a network of RF sensors that communicate to a station connected to the Ethernet network, the target station that read the sensors and update the variables shown in the IP address configured.

I have connected the module NRF24L01 SPI port 2. I am using Enrf24 library.

I have the enc28j60 SPI3 module connected to the port. I am using the library UIPEthernet, configure the module to use port 3 Enc28J60Network modifying the file that is included in the same library.

I have the following problem:

-The NRF24L01 module works well alone. (Although this module connected and energized enc28j60).

-The Enc28j60 module works well alone. (Although this module connected and energized NRF24L01).

In my code, if I comment the line

Ethernet.begin (mac, ip); NRF24L01 module operates but does not work enc28j60 module.

If I uncommented the same line opposite happens.

attached files of my project, I add my code.

What could be my problem?

Regards

#include <SPI.h>			//Libreria para habilitar el puerto de perifericos serie
#include <UIPEthernet.h>    //Micro IP adaptado a LMF120H5QR
#include <Enrf24.h>			//Manejador para envio de mensajes RF
#include <nRF24L01.h>		//Controlador del modulo RF
#include <string.h>			//Libreria para el manejo de cadenas de texto

void nodoEthernet();
void nodoRF();
void printIndex();

/*Valores de los sensores*/
float temperatura1 = 0;
float temperatura2 = 0;
float temperatura3 = 0;
int humedad2 = 0;
int humedad3 = 0;

/*Mapeo de pines SPI del Stellaris LMF120H5QR*/
#define P2_0   PA_5     // CE
#define P2_1   PA_6     // CSN
#define P2_2   PA_7     // IRQ

/*Configuracion de nodo RF*/
Enrf24 radio(P2_0, P2_1, P2_2);
const uint8_t rxaddr[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0x01 }; //Direccion MAC del nodo RF principal
void dump_radio_status_to_serialport(uint8_t);

/*Configuracion del puerto Ethernet*/
EthernetServer server(80); //Iniciar servidor en el puerto 80
int statusConfig = 0;	   //codigo de configuracion

void setup()
{
  Serial.begin(9600); //Puerto Serie para depuracion
  SPI.begin();	//Iniciar el puerto SPI
  SPI.setDataMode(SPI_MODE0);
  SPI.setBitOrder(MSBFIRST);

  /*Configuracion de arranque del nodo RF*/
  radio.begin(25000);  // Velocidad 250kbps, canal 0, max TX power
  radio.setRXaddress((void*)rxaddr);
  radio.enableRX();  // Iniciar Escucha RF canal 0
 
  /*Configuracion de Arranque del puerto Ethernet*/
  //Serial.println("Estableciendo conexion Ethernet....");
  byte mac[] = {0x00, 0x4f, 0x49, 0x00, 0x00, 0x03}; //Direccion MAC
  IPAddress ip = IPAddress(192, 168, 1, 100);			 //Direccion IP
  //Ethernet.begin(mac, ip); //Iniciar el puerto con los parametros MAC y IP
  server.begin(); 
}

EthernetClient client;

void loop()
{

  nodoEthernet();
  nodoRF();

}

void nodoEthernet()
{
  client = server.available();

  if (client) 
  {                            
    String cadenaEntrante = "";     //Cadena para guardar las peticiones del cliente
    while (client.connected())  //Mientras un cliente este conectado
    {            
      if (client.available()) //Si hay bytes para leer del cliente
      {                
        char c = client.read();  //Leer un byte
        Serial.print(c); //Mostrar el byte en el puerto serie
        if (c == '\n')  //Si es un retorno de carro
        {                   
          //Si la linea actual esta en blanco se tienen dos retornos de carro.
          //Lo cual seria el final de la peticion HTTP y se puede proceder a responder.
          if (cadenaEntrante.length() == 0)
          {
            break;
          }
          else {      
            cadenaEntrante = "";
          }
        }
        else if (c != '\r') 
        {    
          cadenaEntrante += c;
        }

        if (cadenaEntrante.endsWith("GET / "))
        {
          statusConfig = 0;
          printIndex();
        }

        //Leer peticiones del cliente
        if (cadenaEntrante.endsWith("GET /temperatura1")) {EnviarDatos(1);}
        if (cadenaEntrante.endsWith("GET /temperatura2")) {EnviarDatos(2);}
        if (cadenaEntrante.endsWith("GET /temperatura3")) {EnviarDatos(3);}
        if (cadenaEntrante.endsWith("GET /humedad2")) {EnviarDatos(4);}
        if (cadenaEntrante.endsWith("GET /humedad3")) {EnviarDatos(5);}
      }
    }
    //Cerrar la conexion
    client.stop();
    //Serial.println("cliente desconectado");
  }

}


int EnviarDatos(int dato)
{
  switch(dato)
  {
  case 1: 
    client.println("HTTP/1.1 200 OK");
    client.println("Content-type:text/html");
    client.println();
    client.println("<html>");
    client.println(temperatura1);
    client.println("</html>");
    break;
  case 2: 
    client.println("HTTP/1.1 200 OK");
    client.println("Content-type:text/html");
    client.println();
    client.println("<html>");
    client.println(temperatura2);
    client.println("</html>");
    break;
  case 3:
    client.println("HTTP/1.1 200 OK");
    client.println("Content-type:text/html");
    client.println();
    client.println("<html>");
    client.println(temperatura3);
    client.println("</html>"); 
    break;
  case 4:
    client.println("HTTP/1.1 200 OK");
    client.println("Content-type:text/html");
    client.println();
    client.println("<html>");
    client.println(humedad2);
    client.println("</html>"); 
    break;
  case 5:
    client.println("HTTP/1.1 200 OK");
    client.println("Content-type:text/html");
    client.println();
    client.println("<html>");
    client.println(humedad2);
    client.println("</html>");  
    break;
  default: 
    break;
  }


}


void printIndex()
{
  client.println("HTTP/1.1 200 OK");
  client.println("Content-type:text/html");
  client.println();
  client.println("<html>");
  client.println("<head><title>Fancy Sensors</title>");
  client.println("<style>");
  client.println("body{ background: whitesmoke; color:black; font-family:Consolas, monospace; font-size: 16px; }");
  client.println("article{ background: #f0f8ff; border - style: solid; border-color: #008080;");
  client.println("border-width: 8px; border-radius: 0.5em; margin: 1em auto; padding: 1em 0;");
  client.println("width: 80 % ; text-align: center; box-shadow: 10px 10px 5px #888888; }");
  client.println("input{ width: 100 % ; font-size: 24px; text-align: center; }");
  client.println("table{ font-size: 24px; } td{ text-align: center; }label{ display: block; margin: .5em 0 0 0; }</style>");
  client.println("</head>");
  client.println("<body>");
  client.println("<article>");
  client.println("<header style=\"font-size: 24px;\"><h1>Fancy Sensors</h1></header>");
  client.println("<table border = 0, align = \"center\", cellspacing = \"30\">");
  client.println("<tr>");
  client.println("<td><label>Temperatura Zona 1</label><input type = \"text\" value =\" "); 
  client.print(temperatura1); 
  client.print("\""); 
  client.print("readonly /></td>");
  client.println("<td><label>Humedad Zona 2 % </label><input type = \"text\" value =\" "); 
  client.print(humedad2); 
  client.print("\""); 
  client.print("readonly/></td>");
  client.println("</tr><tr>");
  client.println("<td><label>Temperatura Zona 2</label><input type = \"text\" value =\" ");
  client.print(temperatura2); 
  client.print("\""); 
  client.print("readonly/></td>");
  client.println("<td><label>Humedad Zona 3 % </label><input type =\"text\" value =\" ");
  client.print(humedad3); 
  client.print("\""); 
  client.print("readonly/></td>");
  client.println("</tr>");
  client.println("<tr><td><label>Temperatura Zona 3 </label ><input type =\"text\" value =\" ");
  client.print(temperatura3); 
  client.print("\""); 
  client.print("readonly/></td>");
  client.println("<td>");
  client.println("</td>");
  client.println("</tr>");
  client.println("</table>");
  client.println("</article>");
  client.println("</body>");
  client.println("</html>");

}



void nodoRF()
{
  char inbuf[33];

 dump_radio_status_to_serialport(radio.radioState());

  while (!radio.available(true))
    ;
  if (radio.read(inbuf)) {
    Serial.println("**************************************************************");
    Serial.print("Paquete Recibido: ");
    Serial.println(inbuf);


    String cadenaRecibida = inbuf;
    
    if(cadenaRecibida.startsWith("TMP1"))
    { 
      String temp = cadenaRecibida.substring(4);
      int temperatura = temp.toInt();
      float fTemp = ((3.0 * temperatura * 100.0)/1023.0);
    }
    else
    if(cadenaRecibida.startsWith("TMP2"))
    { 
      String temp2 = cadenaRecibida.substring(4);
      int temperatura2 = temp2.toInt();
      //float fTemp = ((3.0 * temperatura * 100.0)/1023.0);
    }
    else
    if(cadenaRecibida.startsWith("HUM2"))
    { 
      String hum2 = cadenaRecibida.substring(4);
      int humedad2 = hum2.toInt();
     // float fTemp = ((3.0 * temperatura * 100.0)/1023.0);
    }
    else
     if(cadenaRecibida.startsWith("TMP3"))
    { 
      String temp2 = cadenaRecibida.substring(4);
      int temperatura2 = temp2.toInt();
      //float fTemp = ((3.0 * temperatura * 100.0)/1023.0);
    }
    else
    if(cadenaRecibida.startsWith("HUM3"))
    { 
      String hum2 = cadenaRecibida.substring(4);
      int humedad2 = hum2.toInt();
     // float fTemp = ((3.0 * temperatura * 100.0)/1023.0);
    }

  }
}


void dump_radio_status_to_serialport(uint8_t status)
{
  Serial.print("Estado del tranceptor principal: ");
  switch (status) {
    case ENRF24_STATE_NOTPRESENT:
      Serial.println("No hay un tranceptor instalado");
      break;

    case ENRF24_STATE_DEEPSLEEP:
      Serial.println("Modo de ultra bajo consumo <1uA ");
      break;

    case ENRF24_STATE_IDLE:
      Serial.println("Modulo de inactividad ON||Fucionando con oscilador");
      break;

    case ENRF24_STATE_PTX:
      Serial.println("Transmitiendo de forma activa");
      break;

    case ENRF24_STATE_PRX:
      Serial.println("Modo de Recepcion de Datos");
      break;

    default:
      Serial.println("Codigo de estado desconocido");
  }
}

RROMANO001 · June 6, 2015

Hi good day .........

In my code, if I comment the line

Ethernet.begin (mac, ip); NRF24L01 module operates but does not work enc28j60 module.

If I uncommented the same line opposite happens.

attached files of my project, I add my code.

What could be my problem?

Impossible to say something about your problem but we can say about our:

How are both device connected to microcontroller? I assume you are using an LP Stellaris HQ120 or a new TIVA 123, are pin used for SPI devices separated? are you sure no collision between channel? Is IRQ service updated?

More detail are needed before to say just try something.

Why not use LP connected instead of a slow device like enc28j60?

BRey · June 7, 2015

I think the UIPEthernet/enc28j60 library is very time sensitive and the wireless module interrupt processing causes problems. I think the LP Connected Ethernet is DMA driven and probably more interrupt friendly.

Servtes1426459984 · June 7, 2015

Impossible to say something about your problem but we can say about our:

How are both device connected to microcontroller? I assume you are using an LP Stellaris HQ120 or a new TIVA 123, are pin used for SPI devices separated? are you sure no collision between channel? Is IRQ service updated?

More detail are needed before to say just try something.

Why not use LP connected instead of a slow device like enc28j60?

Both devices connect them following pin mapping documentation energy

Yes, I am using a Stellaris Launchpad LMF120

Yes, SPI port 2 if for nrf20l01 and SPI port 3 for enc28j60.

I have two modules connected and energized, runin the same code, the ethernet part always work, but the RF part only works if I disable the Ethernet side.

Where I live I have like getting a connected

I think the UIPEthernet/enc28j60 library is very time sensitive and the wireless module interrupt processing causes problems. I think the LP Connected Ethernet is DMA driven and probably more interrupt friendly.

I will be reviewing the code =)

launchpad, I'm doing what I have on hand.

thanks

RROMANO001 · June 7, 2015

Both devices connect them following pin mapping documentation energy

thanks

Documentation say where SPI channel are mapped but nothing about additional pin, so for NRF module I see this:

/*Mapeo de pines SPI del Stellaris LMF120H5QR*/

#define P2_0 PA_5 // CE

#define P2_1 PA_6 // CSN

#define P2_2 PA_7 // IRQ

these pin refer to SPI1

What about SPI of enc module? is as original wired to SPI3? this case all is ok

Are all NRF pin connected the right way?

Just do an inspection to NRF library too.

RROMANO001 · June 7, 2015

Yes, SPI port 2 if for nrf20l01 and SPI port 3 for enc28j60.

I have two modules connected and energized, runin the same code, the ethernet part always work, but the RF part only works if I disable the Ethernet side.

and from SPI NRF library released by Spirillis, if this is the one are you using:

Enrf24 radio(P2_0, P2_1, P2_2); // CE, CSN, IRQ pins

this case both devices use the same pins for CS and CSN, this is a conflict, please can you post as I requested:

- which pin are connected to NRF

- which pin are connected to ENC

-*** SETUP of SPI and pin assignment for NRF

-*** SETUP of SPI and pin assignment for ENC

- Which library are you using, please point where you got them to have reference at hand.

If both library use same additional pin conflict can garbage communication on devices, so also ENC seems working but can be it behave bad too.

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Two SPI 2 for nrf24l01 and 3 for enc28j60 bad function

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