Light Electric Vehicle CAN protocol
Some ideas taken from J1939 and CanOpen
Uses 29bit CAN network (1MBps default), check dev branches for latest builds.
- Two transmission modes, "TCP" (controlled reception and data order) and "UDP"
- Notifications for user
- Dynamic network address
- Configurable parameters for devices
- Simple file i/o with file server
- Static and dynamic memory supported
- Up to 125 devices on bus
- 10 bit message ID + length matching
- Broadcast and adressed messages
- C11
- Little endian
- 8bit = int8_t
- RTOS recommended for faster responce and needed for advanced features
- Binary size for gcc -O2 on Cortex M4:
Each message that is sent by a Node contains source address. There are 128 possible addresses:
- 0..126 – Valid source addresses for Node
- 0..63 – Used for Node with Preferred Addresses
- 64...125 – Available for all Node
- 126 – Null (not set)
- 127 – Global
CAN 1Mbps 7812.5 msg/s at 8byte (total msg 128 bit) 62500 data bytes max
