library for C++ CANOpen implementation. mbed independant, but is easy to attach into with mbed.

Dependents:   ppCANOpen_Example DISCO-F746NG_rtos_test

Example:

Import programppCANOpen_Example

I am no longer actively working on the ppCANOpen library, however, I want to publish this project so that anyone who wants to pick up any of the pieces can have a good example. This is a a project I was working on using the ppCANOpen library. It has a pretty in deep use of the object dictionary structure. And a number of functions to control high voltage pinball drivers, if you're into that sort of thing.

source/ServiceProvider.cpp

Committer:
ptpaterson
Date:
2016-01-04
Revision:
3:12b3c25bdeba
Parent:
2:c724ff3a4e4d
Child:
4:2034b04c86d2

File content as of revision 3:12b3c25bdeba:

/**
 ******************************************************************************
 * @file
 * @author  Paul Paterson
 * @version
 * @date    2015-12-22
 * @brief   CANOpen implementation library
 ******************************************************************************
 * @attention
 *
 * <h2><center>&copy; COPYRIGHT(c) 2015 Paul Paterson
 *
 * All rights reserved.

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "ServiceProvider.h"
#include "Node.h"

#include "canopen_api.h"

#include <string.h>
#include <stdio.h>

namespace ppCANOpen
{
    
ServiceProvider::ServiceProvider (void) : nodeCount(0) 
{
    printf ("-------- SERVICE PROVIDER: CONSTRUCTOR\r\n");
    
    //memset (nodes, 0, sizeof(Node) * SERVICE_MAX_NODES ); // TODO: fix incorrect <--
    for (int i = 0; i < SERVICE_MAX_NODES; i++) {
        nodes[i] = 0;   
    }
    printf ("-------- SERVICE PROVIDER: MEMSET GOOD\r\n");
    
    hCanOpen = new CanOpenHandle;
    CanOpenApiInit(hCanOpen);
}

ServiceProvider::~ServiceProvider (void)
{
    delete hCanOpen;   
}

/*=============================================================================
 * main loop
 *=============================================================================
 */ 

void ServiceProvider::Run (void)
{
    printf ("-------- SERVICE PROVIDER: RUN\r\n");
    
    while (1) {
        
        /* Check for new messages */
        CanOpenMessage msg;
        if (hCanOpen->can) {
            if (CanOpenApiRead (hCanOpen, &msg)) {
                
                /* if new message exists, give it to the nodes*/
                /* update all of the nodes */
                for (int i=0; i < nodeCount; i++) {
                    nodes[i]->DispatchMessage(&msg);                 
                }
                
                //Node::DispatchMessage(&msg);
                
                //**ECHO**
                if (CanOpenApiWrite(hCanOpen, &msg)) {
                }
                //**END ECHO
            }
        }    
   
        /* update all of the nodes */
        for (int i=0; i < nodeCount; i++) {
            nodes[i]->Update();            
        }
    }    
}

/*=============================================================================
 * Add Node to list
 *=============================================================================
 */ 

int ServiceProvider::AddNode (Node * node) 
{
    int result = 1;
    
    if (nodeCount < SERVICE_MAX_NODES) {
        nodes[nodeCount++] = node;
    } else {
        result = 0;
    }
    
    return result;
}

/* ========================================================================
 * Methods to handle message requests and responses
 * ========================================================================
 */

void ServiceProvider::RequestPdo (const int pdoNum)
{}

void ServiceProvider::ProducePdo (const int pdoNum, char * data)
{}

int  ServiceProvider::SendNodeControl (NmtCommandSpecifier cs, unsigned int targetId)
{
//    CanOpenMessage canOpenMsg; 
//    
//    canOpenMsg.data[0]     = (char)cs;
//    canOpenMsg.data[1]     = (char)nodeId;
//    canOpenMsg.dataCount   = 2;
//    canOpenMsg.type        = CANOPEN_TYPE_DATA;
//    canOpenMsg.format      = CANOPEN_FORMAT_STANDARD;
//    
//    return CanOpenApiWrite (&canOpenMsg);

    return 0;
}

int  ServiceProvider::RequestErrorControl (NmtCommandSpecifier cs, unsigned int targetId)
{
    //NMT_STATE_SET(Node::state.nmtState, NMT_STATE_UNKNOWN);
    return 0;    
}

int  ServiceProvider::RespondErrorControl (NmtCommandSpecifier cs, unsigned int targetId)
{
    //NMT_STATE_SET(Node::state.nmtState, NMT_STATE_UNKNOWN);
    return 0;    
}


} /* namspace ppCANOpen */