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0 votes
1 answer
126 views

STM32 Can bus random data

I am using an STM32 to transmit data over CAN using CAN2. Currently, my code is only setting up the can peripheral and sending periodic messages. My messages usually look like this on the receiving ...
Daniel D.'s user avatar
0 votes
1 answer
150 views

CAN-Bus Message confusion

Can anyone tell me what the difference between these two sets of CAN Bus messages? This is from the manual of a Power Drive Unit (PDU) in the Cargo Handling System of a 747F (UPS Freight). This is the ...
joel cox's user avatar
0 votes
0 answers
69 views

ID collision on CANOpen SDO

I am working on a remote control module to control my heating boiler remotely. The boiler uses CANOpen 125k. My module transmits periodically SDO requests to read temperatures and other parameters. ...
h4rdc0der's user avatar
1 vote
1 answer
77 views

CAN physical layer flexibility

I'm considering designing a CAN bus (CANopen) where part of the bus, closest to each node, does not use twisted pair. Partially the bus will run in a DSUB, but partially through stackable header or ...
NoobPointerException's user avatar
1 vote
4 answers
3k views

CAN Bus Dominant and Recessive?

Why does CAN Bus represents signals with an inverted logic, high voltage for a logic 0 and low voltage for a logic 1? Is there any advantage in doing so?
Manzillo's user avatar