File content as of revision 3:5bea13b77b97:

#include "port_helper.h"
#include "main.h"

Serial Debug(USBTX, USBRX);
DigitalOut running_status(LED1);

extern uint8_t nodeID;
extern uint8_t change_node_id;
extern NMTStateAdjustment stack_state;

void initHelper()
{
    Debug.baud(57600);
    printf(" CANopen port of CANfestival master node \n");
}

void serviceHelper()
{
    static uint32_t cnt = 0;
    // indicate that the stack is running
    if (cnt++ > 100){
        cnt = 0;
        running_status = !running_status;
    }    
}


void printMsg(Message& msg)
{
    CANMessage m(msg.cob_id, (char*)msg.data, msg.len, static_cast<CANType>(msg.rtr), CANStandard);
    // call the CANMessage formatted method
    printMsg(m);
}

void printMsg(CANMessage& msg)
{
    switch(msg.len){
        case 1:
            printf("ID: 0x%04X DLC: %d Data(0): 0x%02X\n", msg.id, msg.len, msg.data[0]);
            break;
        case 2:
            printf("ID: 0x%04X DLC: %d Data(0->1): 0x%02X 0x%02X\n", msg.id, msg.len, msg.data[0], msg.data[1]);
            break;
        case 3:
            printf("ID: 0x%04X DLC: %d Data(0->2): 0x%02X 0x%02X 0x%02X\n",
                msg.id, msg.len, msg.data[0], msg.data[1], msg.data[2]);
            break;
        case 4:
            printf("ID: 0x%04X DLC: %d Data(0->3): 0x%02X 0x%02X 0x%02X 0x%02X\n",
                msg.id, msg.len, msg.data[0], msg.data[1], msg.data[2], msg.data[3]);
            break;
        case 5:
            printf("ID: 0x%04X DLC: %d Data(0->4): 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
                msg.id, msg.len, msg.data[0], msg.data[1], msg.data[2], msg.data[3], msg.data[4]);
            break;
        case 6:
            printf("ID: 0x%04X DLC: %d Data(0->5): 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
                msg.id, msg.len, msg.data[0], msg.data[1], msg.data[2], msg.data[3], msg.data[4], msg.data[5]);
            break;
        case 7:
            printf("ID: 0x%04X DLC: %d Data(0->6): 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
                msg.id, msg.len, msg.data[0], msg.data[1], msg.data[2], msg.data[3], msg.data[4], msg.data[5], msg.data[6]);
            break;
        case 8:
            printf("ID: 0x%04X DLC: %d Data(0->7): 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
                msg.id, msg.len, msg.data[0], msg.data[1], msg.data[2], msg.data[3], msg.data[4], msg.data[5], msg.data[6], msg.data[7]);
            break;
        default: 
            break;
    }
    //printf("ID: 0x%04X DLC: %d Data(0->7): 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
    //    msg.id, msg.len, msg.data[0], msg.data[1], msg.data[2], 
    //    msg.data[3], msg.data[4], msg.data[5], msg.data[6],msg.data[7]);
}

void serviceCOMCommands()
{
     static char msg[64];
    static char w_loc=0;
    if (Debug.readable()){
        // store the data
        if (w_loc < 64){
            msg[w_loc++] = Debug.getc();
        }
        // clear the buffer and try again
        else{
            // clear the buffer
            memset(msg, 0, 64);
            w_loc = 0;
            return;
        }
        // parse the message and act on it
        if ((msg[w_loc-1] == '\r') || (msg[w_loc-1] == '\n') ){
            // format the message
            // process the message and look for something familiar
            if (strncmp(msg, "help", strlen("help")) == 0){
                 // print the help menu
                printf("\t HELP OPTIONS (case sesnitive):\n");
                printf("\t  help - display the available options\n");
                printf("\t  id=xxx - change the node id\n");
                printf("\t  about - get info about the node\n");
                printf("\t  state=xxxx - start, stop, reset\n");
            }
            else if (strncmp(msg, "id=", strlen("id=")) == 0){
                // change the node ID
                int res = atoi(msg+strlen("id="));
                if ( (res > 0) && (res < 128) ){
                    nodeID = res;
                    printf("the new node_id = %d\n", nodeID);
                    change_node_id = 1;
                }
                else{
                    printf("invalid parameter\n");
                }
            }
            else if (strncmp(msg, "about", strlen("about")) == 0){
                // our call tag
                printf(" CANopen port of CANfestival master node \n");
            }
            else if (strncmp(msg, "state=", strlen("state=")) == 0){
                // ohh what to do
                if (strncmp(msg+strlen("state="), "start", strlen("start")) == 0){
                    printf("stack state = start\n");
                    // signal back
                    stack_state = start;
                }
                else if (strncmp(msg+strlen("state="), "stop", strlen("stop")) == 0){
                     printf("stack state = stop\n");
                    // signal back
                    stack_state = stop;
                }
                else if (strncmp(msg+strlen("state="), "reset", strlen("reset")) == 0){
                     printf("stack state = reset\n");
                    // signal back
                    stack_state = reset;
                }
            }
            // clear the buffer
            memset(msg, 0, 64);
            w_loc = 0;
        }
    }
}