Hello
We are using the NXP LIN stack with a S32K144, running as a slave. Everything works well, such as scheduled status reporting packets, but except for occasional mishaps with diagnostic packets (0x3c/0x3d).
We have 3 SIDs configured and these all perform well in receiving 0x3c packets (master requests). When sending slave responses, 0x3d, they very occasionally "get stuck" with the status being constantly LD_IN_PROGRESS. We can see the master host sending 0x3d headers, but the slave never transmits its queued response.
After much investigation, it may be because the slave receives a further request prior to the previous response being sent; but this ought not result in the LIN stack's state machines being confused and then refusing to send any further response.
The versions of tools used are:
- S32 Design Studio 3.4
- S32 Design Studio Platform Package 3.4.3
- S32 Design Studio Platform Tools Package 3.4.3
- S32K1xx Development Package 3.4.1
- S32SDK S32K1XX RTM 4.0.3
We have tried different versions of LIN 2.X and even J2602 (configured from LDF file); but nothing makes any difference.
Have we missed something really obvious....?
Kind regards
Gary Partis
