Simma Software has been designing CAN and CAN-FD device drivers for 15 years and has deployed numerous drivers into automotive embedded systems. Simma Software’s CAN drivers have been validated to withstand 100% bus utilization on multiple CAN networks simultaneously and have been shown to be 800% faster than other drivers.
CAN, which stands for Controller Area Network, is a high-speed, half-duplex, differential, serial communications protocol invented by Bosch. CAN was designed to be a multi-master network for connecting ECUs in a vehicle. It is now widely used in all light, medium, and heavy duty vehicles. Due to its popularity, it has spread to aircraft, marine, all terrain vehicles, and industrial automation.
View PortsA CAN bus has a network speed ranging from 33 Kbps to 1 Mbps. CAN uses a non-destructive method for bus arbitration and collision detection. Because bus collisions are non-destructive, it is possible to achieve 100% bus load.
Non-destructive arbitration is achieved by defining a 0 to be electrically active, known as a dominant bit, and a 1 to be electrically passive, known as a recessive bit. A dominant bit, is when CAN_H has a potential 200mV higher than CAN_L. A recessive bit is when the difference is less than 200mV.
Global Customers
Protocol Stacks
CAN Device Drivers
Flash Bootloaders
Microcontrollers & DSPs
Real Time Operating Systems
