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CCS/TMS570LS20216: flexray

adsf df
Prodigy 40 points
Part Number: TMS570LS20216

Tool/software: Code Composer Studio

when I debug the program “Antares_FlexRay_CCSv5_example_code_nodeB”，the Status Interrupt Register (SIR).bit3(TXI) always set 1.

In the funcation "transmit_check_node_b",I don't  clear the status interrupt register and don't wait the CYCS start .

AND cut off the flexray bus,leave the flexray connector unconnected,so the flexray node cant communication to any other nodes .

Why the SIR.bit3 (transmit interrupt) also set 1?

and i wa5270.Antares_FlexRay_CCSv5_example_code_nodeB.rarnt ask the funcation of TXi and CYCS?

  • 0
    TI__Guru**** 194546 points
    Hello

    The frame was transmitted, but several error flags were set because failed clock correction and less than 2 sync frames.

    A minimum of two coldstart nodes need to be configured for distributed time-triggered operation. Two fault-free coldstart nodes are necessary for the cluster startup.
  • 0 in reply to QJ Wang
    Prodigy 40 points
    hello
    when i cut off the flexfray bus connector,the SIR.bit3 still be 1, i dont think the frame can transmit successfully,so why SIR bit 3 will be set,
    the only flexray example i have didnt mention sync frame,can you give me more details or demo code,
    the example configure the node as cold start node,but dont mention time-triggered operation,or cluster start up,where can i get more details
    ,i have read user's manual,but i dont understand it clearly,there are more term without explanation
  • 0 in reply to adsf df
    TI__Guru**** 194546 points
    Hello,

    I will do a test