Uart to can ic

Serial frame Details see the " 3. Suggested values: For standard frame: initial position 1, standard frame 2. For extend frame: initial position 1, extend frame 4. For example of standard frame:. CAN message convert serial frame For example of standard frame:. The GCAN module has data conversion format, as shown the picture. Products If we are not online, please leave a message, we will contact you asap.

Email:sygckj gmail. Embedded system integration. Serial fieldbus transformation. IC More details. Introduction 3. Manual YouTube Downloads Solution. Company News Industry news. This image shows the structure of a CAN message:. There's plenty microcontrollers around that have a CAN interface, sans the transceiver.

It's for these that the MCP was designed. MCP is the key piece you're missing here. Study well what it does. It's the actual CAN controller that does framing, ACKs, checksum generation and verification, message filtering and other less obvious things that a CAN node is required to do by the standard.

If you want a sniffer, MCP has a listen only mode which guarantees no transmissions on the bus. This places a lot of load on the USB host controller but still doesn't guarantee that no messages are lost MCP can store up to 2 received messages internally if you enable "overflow mode", only one if you don't. See this project for a working implementation of exactly this idea. That won't be easy, but it is theoretically possible.

Without specialized CAN hardware, you'll have to sample a few times faster than the CAN bit rate and decode that bit stream in software later. Using a microcontroller will be far easier. The hardware does all the bit level decoding and receives whole CAN frames.

Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 9 years, 5 months ago. Active 8 years, 10 months ago. Viewed 20k times. Peter Mortensen 1, 3 3 gold badges 17 17 silver badges 23 23 bronze badges. Add a comment. Active Oldest Votes. This image shows the structure of a CAN message: There's plenty microcontrollers around that have a CAN interface, sans the transceiver.

Without those a UART transmission is just an 8-bit byte. A CAN message is much more complex, with addressing, priority and error checking.