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Hot!MCP25625 : Not getting even SOF at CAN bus and the bus is idle always

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Sriram_BC
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2020/02/12 23:07:26 (permalink)
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MCP25625 : Not getting even SOF at CAN bus and the bus is idle always

 
Hi,
 
We are running MCP25625 at the following rates
 
OSC input clock : 20 MHz
System Clock : 10 MHz
CAN Baud rate : 500 kbps
 
CAN Frame used via SocketCAN linux framework:
 
cansend can0 135#02080426A10D112A
 
After the frame pushed to the Controller, we are not getting even SOF at CAN bus and the bus is idle always. As per registers, transmit error is set in the error registers. With the same settings CAN controller works fine in loopback mode.
 
Basically we are observing either TEC or REC count is getting increased once started sending the frame at Tx Node. We are missing some basic thing. Can you please point out anything needs to be verified
 
Thanks,
Sriram.
 
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