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This example sets up the CAN controller in External Loopback test mode.
//! Data transmitted is visible on the CANTXA/CANATX pin and is received internally
//! back to the CAN Core.
This example shows basic setup of CAN in order to transmit and receive messages. It sets up CAN-A as the transmitter and CAN-B as the receiver. A receive interrupt is asserted on CAN-B to verify the received data.
