F28002x LaunchPad: Unable to TX on LINA on GPIO28

Hi Dean,

Thanks for your question! LIN slave mode configuration is a little tricky, can you try out the example from the last accepted answer in this thread (it's a code block with an example within it, applies to all devices with LIN, but may need to change GPIOs for your choice here):

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1114621/tms320f280049c-lin-module-in-slave-mode---how-to-initiate-response-transmission

That should get the slave responses working in a basic manner, and then you can edit the example from there to get the other items working.

Regards,

Vince

Vince,

Thanks for the example - found it was the order/offsets that I was using to write to the LINTDx registers.

Going forward, do you have any advice on setting up the (slave) filters.  Looks like the appropriate flags (IDRXFLAG/IDTXFLAG) have to be set by header reception before reception or transmission (respectively) can continue.  As such, not sure how to set up the filters to match for the following IDs (HGENCTRL=1):

  30h, 60h: to set IDRXFLAG

   31h, 32h, 33h, 61 to set IDTXFLAG

Alternately, is there a backdoor method of setting the LIN module to selectively continue in RX or TX mode ignoring the id filters (i.e. set to pass all).

Dean,

Vince is out of the office.  Please expect our next reply by Tues of next week.

Best,

Matthew