Tool/software: Code Composer Studio
Hello everybody,
i would like to know is it possible to get the incoming CAN id.
I want to send and receive CAN messages with different CAN Id's for further applications.
But if i try to get the sent Id from the Arbitration Register, it always show me the Id witch i configured at first by my self. You can see it below.
I use the the CAN2 for my application.
Configuration of the received message:
const CANMessageObjectConfig receiveConfig =
{
.direction = CAN_DIRECTION_RECEIVE,
.id = 0x000,
.idMask = 0x000,
.ideMask = 1,
.mode = CAN_STANDARD_ID,
.node = CAN_NODE_1 //CAN2
};
Internal configuration of the Arbitration Register:
object->tmsObj->IF2ARB = (uint32)0x80000000U | (uint32)0x00000000U | (uint32)0x00000000U | (uint32)((uint32)((uint32)(config->id) & (uint32)0x000007FFU) << (uint32)18U);//regARB;
At first i try to write the incoming Id in the Arbitration Register like this.
if(object->config->mode == CAN_STANDARD_ID){
msg->id = object->tmsObj->IF2ARB; // id(18-28) in IF2ARB Register
msg->id = msg->id >> 18;
msg->id = msg->id &0x7FF;
}
Than with the canGetID Function.
msg->id = canGetID(object->node, object->messageBox);
But always it show my the configured Id ("0" in this case).
I have no problems to get the Data or the length from the message. So i hope someone can help me with my problem, i think i have misunderstanding how to use the Arbitration Register.
Thank you for your help,
Simon
