TMS320F2800137: CAN

youjun zhang

Intellectual 420 points

Part Number: TMS320F2800137
Other Parts Discussed in Thread: C2000WARE, MOTORWARE

Tool/software:

hi expert:

when dCanHal_TxMsgNum =1(transmit id number is 1),the transmit id can send successfully.

but when dCanHal_TxMsgNum =2(transmit id number is 2),the second transmit id can not send successfully.why?

how to solve the problem? i want to used two CAN ID (sending messages every 100ms),such as 0x123,0x124;

1 month ago

0 Joseph Casuga 1 month ago

TI__Mastermind 30465 points

Hi Youjun,

Sorry, I'm not familiar with the variable names in your program as these are not the same ones used in C2000Ware that i am familiar with. In your application, what is dCanHal_TxMsgNum? Is this the object ID or is this the message ID. object ID and message ID are two different things. I just wanted to clarify what is dCanHal_TxMsgNum.

Regards,

Joseph

0 youjun zhang 1 month ago in reply to Joseph Casuga

Intellectual 420 points

i want to used two CAN ID (sending messages every 100ms),such as 0x123,0x124;how to solve the problem?

dCanHal_TxMsgNum is the number of Structure array（mailbox,message id,type,length）

0 Joseph Casuga 1 month ago in reply to youjun zhang

TI__Mastermind 30465 points

It looks like the message object initialization with function CAN_setupMessageObject() is in a loop so you should be able to pass the dCanHal_TxMsgNum in that loop in succession for the 2 message IDs that you want to send. You would need to follow the transmit object initialization with CAN_sendMessage() function to send the transmit request to the controller.