Other Parts Discussed in Thread: TCAN3414
Tool/software:
I am implementing a CAN interface on DCAN4 using a TCAN3414 transceiver. A periodic task driven by the RTI Compare 2 interrupt is configured to transmit one CAN data frame every 100 ms, carrying a single data byte (a counter from 0 to 10). Under both internal and external loopback, operation is nominal: the 100 ms period is stable and the counter increments correctly. When loopback is disabled, the system becomes unreliable: frames are not consistently transmitted at 100 ms and, although the RTI Compare interrupt continues to trigger, the transmitted data byte remains stuck at 0. The attached image of DCAN4TX trace illustrates this abnormal behavior. Additionally, I connect the transceiver to a PEAK CAN analyzer (PCAN-View) does not detect any frames on the bus.
