CAST, Inc. is now shipping what it believes is the first available CAN Bus Controller soft IP core that supports the recent CAN Flexible Data specification.
Sourced from Fraunhofer IPMS, the revised product adds FD support to the CAN 2.0 controller core CAST has carried for several years. The core’s FD extension completely supports the CAN with Flexible Data-Rate Specification released by Bosch in April 2012. This improved data link layer protocol significantly increases bandwidth, making the CAN bus suitable for the greater demands of modern automotive, industrial control, and other systems.
As provisioned by the spec, the new core imposes no changes on the physical layer, allowing the gradual updating of existing CAN networks with CAN FD capacities.
The CAN Controller 2.0/FD IP core is available in VHDL or Verilog source code, or FPGA netlists. Deliverables include scripts and a testbench for basic verification; work is underway with Avery Design Systems for a complete suite of CAN FD-compatible Verification IP.