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Question asked by Stefan Schiebel on Dec 11, 2017
Latest reply on Dec 14, 2017 by Tomas Vaverka



I'm trying to configure a High-Speed-CAN-Controller (UJA1076A) over SPI with my microcontroller (MPC5607B).


I send a message over the SPI to the CAN-Controller, to take the CAN-Controller in MODE "Normal" (MC=11) and set the EN-Pin to High (ENC=1).


After transmiting the message, the EN-Pin is on High-Level for ca. 60-80 ms, then its turned off again. If i send the message twice, the EN is on High-Level twice (80 ms on --> off --> another 80 ms on--> off).



How can I set the EN to High every time? On the Reset Line is no activity, and no other message is send over SPI.


Thanks for your answers.