While configuring CAN FDCAN1 Tx and FDCAN1 Rx for NUCLEO-G474RE , the loopback mode is working but while connecting with Canoe Analyzer in Normal Mode, I am receiving frame error(Frame format : "FD mode without Bitrate Switching" ).

[VSing.21]

The CAN transceiver IC, i am using : TJA1057GT/3 , and I am seeing the some data waveform on oscilloscope but decoding is not happening. the baud rate varies for the CAN FD is from ~300kbps to 1Mbps(large fluctuation).

 Clock Divider : Divide kernel clock by 1

Frame Format : FD mode without BitRare Switshing

Mode : Normal Mode

Auto Retransmission : Enable

Transmit Pause : Enable

Protocol Exception : Disable

Nominal Prescaler : 1

Nominal Sync Jump Width : 16

Nominal Time Seg1 : 63

Nominal Time Seg2 : 16

Data Prescaler : 2

Data Sync jump width : 4

Data time Seg 1 : 5

Data time Seg2 : 4

Std Filters Nbr : 1

Ext Filter Nbr : 0

Tx Fifo Queue Mode : FIFO mode

Above is the configuration for Cube IDE, can some one help me what could be the solution to resolve the issue

[VSing.21]

this is the configuration i am using

[SKacp.1]

Hello,

Please see this post: https://community.st.com/s/question/0D53W0000080SyvSAE/get-no-coomunication-via-fdcan1-on-stm32g431rb-nucleo-board

[ASafo.3]

Hi,

Try to measure the resistance between Can wires. It should be 120 Om.

If not Check the can analyzer maybe on t you will find switch "terminator"

If not connect the resistor ( 60 or 120 Om) from any side.