How to check CAN signal of CAN loopback mode in stm32f446RE

I have used an example code from STM of CAN loopback mode 

I have used a CAN transreceiver but i'm not getting how to check the signal as well as the data in CAN bus analyser please help me in hardware connection as well as how to check it in CAN bus analyser software.

when I connect Tx of STM32F446RE to transreceiver CAN_Tx and Rx of STM32F446RE to CAN_Rx of Transreceiver then in the transreceiver it is showing Orange light on CAN ERR.

Requesting you to help me.