Part Number: AM263P4
Hey Experts,
iam working with a costum board with
CCS 12.8.1
SDK 11.00.00.19
and i have a question to the CAN module. I want to use the TDC but iam not sure what values to use for TDCO and TDCF. So far my understanding for now:
TDCO: The controller measures the delay at every message and stores the value in TDCV. Now in dataphase the SSP is set to TDCV+TDCO. TDCV and TDCO are given in time quantums which are 1/CANclk ( in my case 12ns).
TDCF: Sets the minimum value for SSP position. Its set relative to bit beginning and not to TDCV?
Now my question is how to set these values correctly?
I tried to look in an ti example: mcan_external_read_write_am263px-cc_r5fss0-0_nortos_ti-arm-clang
there are 5Mbit/s used for dataphase. I would expect to set the SSP to 70%-90% (like the normal sample point) so i would choose 13. But the example uses 6, why?
Can you suggest good values for my case? I use 4Mbit/s dataphase and i saw TDCV is 23 when i debugged.
Best regards
Marcel
