DCAN IFxCMD Register Usage related to Clearing of IntPnd and NewDat bits of CAN Receive Message Objects

Pashan

Hello,

By setting HIGH only Bits 19, 18 and programming correct Message Number bits [7-0] of IFxCMD Register within DCAN, is it possible to clear the IntPnd and NewDat bits of the respective CAN Receive Message Object?

Or, do I have to set Bits 22, 21 and 20 also within IFxCMD Register before writing Message Number field for clearing the IntPnd and NewDat bits for CAN Receive Message Objects?

Thank you.

Regards

Pashan

over 15 years ago

0 Haixiao Weng over 15 years ago

TI__Genius 13810 points

Your question will be forwarded to the DCAN expert. We will get back to you as soon as possible.

Thanks,

Haixiao

0 Pratip Kumar over 15 years ago

TI__Intellectual 2285 points

Pasan,

Clearing the bits 19(Clr_int_pnd) and (TxRqst/New-Dat) should do (clear the falgs), to receive the messages.

You need not have to use 22,21,20 (Mas,Arb,ctrl) bits. But it can be used if you plan to use the IFx Mask,Arbitartion and control registers to communicate with the message objects.

Best Regards,

Pratip

0 Halil Ibrahim over 13 years ago in reply to Pratip Kumar

Prodigy 30 points

hello Pratip

I want to communicate with message object. but I dont know how can I do. you can explain details of this. I need to learn receieved message identifier and data.

thanks

0 Chuck Davenport over 13 years ago in reply to Halil Ibrahim

TI__Guru 59540 points

Hello Halil,

This thread has already been resolved and closed. Can you please re-post your question by starting a new thread?

Arm-based microcontrollers

Arm-based microcontrollers forum

DCAN IFxCMD Register Usage related to Clearing of IntPnd and NewDat bits of CAN Receive Message Objects