Hello, I am trying to communicate between 2 STM32G4 using FDCAN. Using Test Modes it works without a problem. When i change to Normal Mode, TX and RX dont work.

Hello, I'm trying to build a simple program to communicate between 2 microcontrollers using FDCAN. Im not using a transciever yet, just connecting TX of one Nucleo-G431KB to the RX of one Nucleo-G474RE, and vice-versa.

Using the test modes, External Loopback and Bus Monitoring, i can send and receive data without a problem. Filters works properly, everything seems ok.

When i switch to Normal mode, i can't send and/or receive data.

I tried using an osciloscope on the sender TX, and i dont get any signal, when in normal mode.

I'll post the code of the sender, and receiver.

Can someone help me? What am i doing wrong?