I'm doing my own board with TMS570LS3137-PGE, I encountered a problem: I design three CAN module, the schematic is just the same with the TMS570LS31 HDK's design with the HVDA541.
Now the two of the can module(CAN1 and CAN3) can transmit and receive data from each other while the other one(CAN2) cannot. The high level transmit or receive interrupt of the seems never occur.
I want to use the Lookback mode to test the CAN2(together with the TMS570(can controler) can2rx, can2tx and the CANH, CANL of the can transceiver) to confirm that whether the CAN2 module can work properly.
Is the LookBACK mode can do it? Should I connect the 7th(CANH) and the 6th(CANL) pin of the HVDA541 to implementation the LookBACK mode? And, any other suggestions?
yong