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CANopen
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CANopen fields
Header
4B
Address / ID
4B
Type / Opcode
2B
Payload
16B
Integrity
2B
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CANopen
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CAN arbitration (two TX)
Node A
Bus
Node B
SOF + ID 0x100
SOF + ID 0x200
dominant wins
A continues
B loses arb
becomes RX
DATA + CRC
ACK slot
B ACKs
sip
h323
can-arb
isup
webrtc
ss7
generic