UART receiving issue

Hi Renesas Community ,

I was trying to configure RA6M1 for UART communication.

But my control  is not coming inside the callback function .

I will attach my configuration and UART initialisation with this query ,

Kindly suggest the method to resolve the issue. 

Initialisation is called inside hal entry and it works as I checked it with breakpoint ,initialisation is happening correctly.

 These are my configurations.