TMS320F280049: will C2000 think it as bit error when DLC segment data is 1100b?

Daniel Fang

Genius 11600 points

Part Number: TMS320F280049

Hi,

When count CAN errors. For a normal CAN message, will C2000 think it as bit error when DLC segment data is 1100b?

The actual sending data is 1000b, data length is 8 bytes.

over 6 years ago

0 Christopher Chiarella over 6 years ago

TI__Mastermind 30255 points

Hello

Are you saying if you put 1100b as the DLC value? Because that will still be interpreted as 8 data bytes. That shouldn't be an issue.

Best regards

Chris

0 Daniel Fang over 6 years ago in reply to Christopher Chiarella

TI__Genius 11600 points

Hi Christopher,

Double check it.

If put 1100b on DLC value, it don't think it's a bit error or other error, so don't +8 on error counting number?

0 Christopher Chiarella over 6 years ago in reply to Daniel Fang

TI__Mastermind 30255 points

Yeah if you write 1100b into the DLC value in the CAN IFxMCTL register, it will be set to 8 data bytes. Refer to register description in the TRM CAN chapter.

Best regards

Chris

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F280049: will C2000 think it as bit error when DLC segment data is 1100b?