CAN-Bus repeating frame problem.

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Hi,

 

I`m using two AVR AT32UC3C0512C CAN nodes, I get an Atmel-Studio 7 example, the CAN Software Stack Example 2 - UC3C-EK. 

 

The CAN Frames are repeating always 32 times, half of that get ACK. The fault confinement is normal.

 

How can I get a single-shot transmission?

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Last Edited: Thu. Oct 25, 2018 - 11:06 PM
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Hi,

 

I'm back.

 

I solved the problem.

 

The problem was a transceiver power supply. I supplied with 3.3V, the final level on Receptor Rx was lower than the minimum needed for a ACK recognise on CANIF os UC3C.

To solve the problem, just use a higher voltage level.

 

Thanks.

Eleodoro.

Last Edited: Thu. Oct 25, 2018 - 11:08 PM