accessing CAN BUS data in C++

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Hi ,
I am also trying to access CAN bus data in C++. I have PCAN_USB(my hardware board connected with CAN) and I am getting heart beats which i can see from PCAN_View(PEAK systems API) but what i need to do is to save all coming CAN Data(heart beats) into a log file (pcanlog.txt) using C++.
Now my headache is how to access CAN data (e.g CAN ID, Data and time stump) in C++ or QT?

Thanks

Posted 28-Oct-15 22:53pm

Ramiien

Updated 28-Oct-15 22:56pm

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[no name] 29-Oct-15 5:18am

Just go to their website - "http://www.peak-system.com/Software-APIs.305.0.html?&L=1" - download the (FREE) api - read the documentation and bingo.

Ramiien 29-Oct-15 5:39am

Thanks for your answer. I already did this. right now my position is i am getting data From DLL file. e.g

qDebug() << "Hardware Name is :" << PCAN_HARDWARE_NAME;
and it returns me "14" i dont know what this means and how to get Name of the hardware and further information of the hardware from these IDs??
similarly
qDebug() << "Hardware channel is :" << PCAN_CHANNEL_CONDITION
I get the output "13" but as per documentation expected values would be
PCAN_CHANNEL_AVAILABLE
PCAN_CHANNEL_UNAVAILABLE
PCAN_CHANNEL_OCCUPIED
PCAN_CHANNEL_PCANVIEW
I didnot get how to get these values from documentation.

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CPallini · Answer 1 · 2015-10-28T23:18:00

Solution 1

Well, they provide the API documentation, at least[^]. You should carefully study the API and then write your application.

Posted 28-Oct-15 23:18pm

CPallini

Comments

Ramiien 29-Oct-15 5:40am

Thanks for your answer. I already did this partially. right now my position is i am getting data From DLL file. e.g

qDebug() << "Hardware Name is :" << PCAN_HARDWARE_NAME;
and it returns me "14" i dont know what this means and how to get Name of the hardware and further information of the hardware from these IDs??

[no name] 29-Oct-15 6:28am

Have you worked through the example code?

Ramiien 29-Oct-15 7:13am

if example code means code in API documentation than yes i didn't get it fully when I tried to do it in C++. would be nice if you guide me in this direction.

bling · Answer 2 · 2015-10-29T08:49:00

VB

PCAN_CHANNEL_AVAILABLE
PCAN_CHANNEL_UNAVAILABLE
PCAN_CHANNEL_OCCUPIED
PCAN_CHANNEL_PCANVIEW

These are likely #define'd symbols or an enumeration. You need to study the API. One of the API functions may return a channel status. Your code might read something like:

C++

int status = your_api_get_status();
switch (status)
{
case PCAN_CHANNEL_AVAILABLE:
    qDebug() << "available";
    break;
case PCAN_CHANNEL_UNAVAILABLE:
    qDebug() << "unavailable";
    break;
case PCAN_CHANNEL_OCCUPIED:
    qDebug() << "occupied";
    break;
case PCAN_CHANNEL_PCANVIEW:
    qDebug() << "pcanview";
    break;
default:
    break;
}