How to make a LIN diagnostic widh C/C++ on USB-8506 ?

[komao]

I'm a LIN beginner. I need to make a diagnostic tool with USB-8506. I'm using USB-8506 in C / C ++, but there is no diagnostic sample. I have never used LabView, so I need support that can only be talked about with C / C ++. Can someone lead me?

[komao]

If I can reciprocate the diagnostic frame between the host (USB-8506) and the slave (test target) only once, I can develop my own. please help me.

[komao]

Here is my study code.
The nxWait function on line 183 times out.
The API from start to timeout is shown below.

|Line 88: nxCreateSession("TerrianModeSW_LIN_20190115",
| "Cluster",
| "MasterReq"
| "LIN1",
| nxMode_FrameOutQueued,
| &nxSessionHandle);
|Line 98: nxWriteState(nxSessionHandle,
| nxState_LINDiagnosticScheduleChange,
| sizeof(scheduleIndex),
| &scheduleIndex);
|Line 176: nxWriteFrame(txSessionHandle,
| frameBuffer,
| 24,
| 10.0);
|Line 183: nxWait(txSessionHandle,
| nxCondition_TransmitComplete,
| 0,
| 10.0,
| &paramOut); //timed out

[komao]

Here is my study code.
NxWait on line 183 times out.
The APIs up to timeout are shown below.

|Line 88: nxCreateSession("TerrianModeSW_LIN_20190115",
| "Cluster",
| "MasterReq"
| "LIN1",
| nxMode_FrameOutQueued,
| &nxSessionHandle);
|
|Line 98: nxWriteState(nxSessionHandle,
| nxState_LINDiagnosticScheduleChange,
| sizeof(scheduleIndex),
| &scheduleIndex);
|
|Line 176: nxWriteFrame(txSessionHandle,
| frameBuffer,
| 24,
| 10.0);
|
|Line 183: nxWait(txSessionHandle,
| nxCondition_TransmitComplete,
| 0,
| 10.0,
| &paramOut); //time out

[komao]

The timeout problem was solved by changing the
fourth parameter of the nxWriteState function.

I postponed the connection with the target
and switched to a loopback between PORT1 and PORT2.

There is a problem, but the loopback is successful.

Attached are the difference between current study code and previous,
and image of console.

Why does the first try fail?

I want to send a single frame starting with NAD + PCI.
What should I do to do that?

[komao]

I improved yesterday's code.
I used nxLINDiagnosticSchedule_MasterReq for the sending schedule and
nxLINDiagnosticSchedule_SlaveResp for the receiving schedule.

The loopback situation remains unchanged. In other words,
it has succeeded while including problems.

However, when the 47th line is changed to “LIN1” and
both are set as the master, an error (−1074384886) occurs
in the nxWait function (line 188) after transmission.

I don't think this error is related to the loss of slaves
from this system. Because I think that the master cannot recognize
the absence of the slave when transmitting.

I believe this error is related to the fact that
the receiving session became the master.
However, it appears to me that the sending session
and the receiving session are independent.

[Laboureyas]

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