Hi，
I tried the Topic 221272.
First, I executed the following command.
sudo busybox devmem 0x0c303018 w 0xc458
sudo busybox devmem 0x0c303010 w 0xc400
sudo busybox devmem 0x0c303008 w 0xc458
sudo busybox devmem 0x0c303000 w 0xc400
sudo modprobe can
sudo modprobe can_raw
sudo modprobe mttcan
sudo ip link set can0 type can bitrate 500000
sudo ip link set can1 type can bitrate 500000
sudo ifconfig can0 up
sudo ifconfig can1 up
Second, I executed the following command.
@linux:~$ sudo cansend can0 123##1abcdabcd
CAN interface is not CAN FD capable - sorry.
Third, I execute the following command.
@linux:~$ sudo cansend can0 123#abcdabcd
[ 1565.285422] mttcan c310000.mttcan can0: entered error warning state
@linux:~$ [ 1565.292130] mttcan c310000.mttcan can0: entered error passive state.
There is no improvement.The transceiver is as following.
