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UJA1076A

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

Hello,

 

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.

 

 

Stefan

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