Microsemi : Starter kit enables evaluation of FPGA SoC motor-control reference design


Microsemi’s SF2-MC-STARTER-KIT


Control and Communication Systems

Microsemi has released a reference design for a dual-axis deterministic motor-control system-on-chip hosted on a SmartFusion2 Field Programmable Gate Array (FPGA).

Designers can evaluate and work with the reference design by using a starter kit that Microsemi has produced, the SF2-MCSTARTER-KIT. The kit is supplied with hardware and software IP blocks, and provides a fully integrated solution together with a powerful, easy-to-use GUI which enables users to quickly create their own prototypes. The kit is supplied with a control board, two motors, external power supply and USB cabling.

The reference design supports stepper motors with up to 2,048 micro-steps. It also supports permanent-magnet synchronous motors and brushless DC motors controlled with Field-Oriented Commutation (FOC) in either a sensorless configuration or using sensor inputs from Hall sensors, encoders or resolvers.

Microsemi’s deterministic motor-control solution is compliant with industry coding standards for developing safe and reliable software for embedded applications. Microsemi offers a modular intellectual property portfolio and tools alongside the starter kit.

The SmartFusion2 deterministic motorcontrol GUI allows for the dynamic tuning of parameters such as reference speed and Kp/Ki gains of PI controllers, and for viewing internal signals for debugging. The kit also supports various communication interfaces including Ethernet, CAN, RS-485, USB and others.

DC Input Voltage12V to 48V
Maximum AC Current per Phase8A
Switching Frequency10-500kHz (lower frequencies possible when bootstrap capacitance is added)
Hall Interface3 Hall sensor inputs with 5V supply provided through board
Encoder InterfaceSingle-ended and differential encoder with index
ResolverInterfaced through external chip LX3302


  • Compact solution saves board space and reduces motor system size
  • Tested for speeds over 100,000rpm for sensorless motors
  • 1μs latency in FOC loop
  • Automatic motor re-start
  • Over-current protection


  • Motor drives


Orderable Part Number: SF2-MC-STARTER-KIT