I am new in CAN bus protocol and wanted to use two CAN channels in the STM32F as I have to receive/transmit data from/to the two different CAN bus. As per study I found that there is no master slave concept in CAN protocol but when I look at cubemx, it is configuring CAN1 as a Master and CAN2 as a Slave. In STM32F7, there are two Master CAN and one slave. What does it mean? Is it possible to transmit data using slave (CAN2)?