QCanBusFrame::NoError in Error Frame

MrBrightSide8 · wrote on 16 Nov 2017, 06:43

Hi,
I am implementing an error handler for the CAN bus frame and I don't quite understand how does an Error frame has no Error.

May I know under what condition will the Error Frame has no error?

Also, I noticed that the CAN bus example will freeze when it encounters an ErrorFrame. Is that an expected behavior?

QT5.9

aha_1980 · wrote on 16 Nov 2017, 19:03

@MrBrightSide8: Please tell us more about your setup: Which Operating System are you using, which CAN hardware (and therefore which QCanBus plugin).

Are you generating this error frame or does it occur without cause?

Also, I noticed that the CAN bus example will freeze when it encounters an ErrorFrame. Is that an expected behavior?

Of course this is not expected. I remember playing with error frames some weeks ago and cannot confirm your observation. Can you put a breakpoint when this happens and show me the contents of the error frame in the debugger window? Thanks.