PEAK-System Forum

I am using it for measuring, not flashing and most automotive control units tend to use STMin = 0 and BS = MAX.
So yes, in flashing case the flash job can be completed maybe 2% faster. At expence of huge CPU usage.
But outside of batch flashing this is not the case.

You can achieve very similar ...

I was a bit quick to reply on the ISO-TP topic, sorry.
Yeah, I was wondering what was going on there, as your reply seemed nothing to do with what I said :)
Since you're using PCAN-PassThu, could you mention which PassThru protocol's version you're using (04.04 or 05.00)?
I am using 04.04 and I ...

This is a general J2534 issue because J2534 DLL's are not meant to be accessed by more than one process. The API spec says so.
The only workaround is to have one process as the gateway and then have other processes communicate with this process to send the packets.
Most likely you will have to ...

The extended mode seems to work now, but when using ISO-TP with high bus load the CPU usage is very high, it maxes 1.5 cores on a high end Ryzen processor.
If I switch to raw can mode and use my own ISO15765 stack then I have less than 2% CPU usage.

In my ISO15765 stack I am using a multimedia ...

1 month passed.

News?

Hello,

Not really have had the time to look into this further.
Is there any ETA on the update?

I downloaded the latest version and I see that the files inside the archive are still last modified 10.02.2021.

Hello,

No, the problem is not my application. I wrote it. The application is used by hundreds of clients with more than 20 different J2534 interfaces.
Something happens to the PCAN J2534 DLL where even if I clear it and reset everything, I do not get any data back anymore from the J2534 DLL until I ...

When using ISO15765 extended addressing and the channel configured for it, the PeaK library does not set the 0x80 flag on reception.

J2534 call trace via shim about how the channel is set up and the exchange:
0.000s ++ PTOpen(*NULL*, 0x070AE760)
returning DeviceID: 81
3.067s 0:STATUS_NOERROR
3 ...

You assume wrong.

I use exactly the same code with all my hardware . User can freely select J2534 device in dropdown before beginning communication.
I have 4 J2534 devices and only your device exhibits the problem and only when there is a lot of data received.

Is that more clear?

There is zero ...

Hello,

My code is basically:
while (true) {
GetMessageResults results = Channel.GetMessages(1, timeout);
// Do stuff with result here...
}

When processing many messages the CPU usage is very high using your DLL. It hits 100% on one core.
I am using ISO15765-4.

If I use any of my other devices ...