People using the das iCEstick Evaluation Kit von Lattice Semiconductor for learning VHDL
  may also wish to get a simple demo design written in VHDL like the Verilog users ("LED_rotation",
  "IRDA_UART_RX", "IRDA_UART_TX" and "PmodAcl" are all implemented with Verilog).
  With the LED_rotCCW Project, implemented in VHDL, such a demo design is hereby available.
  In this demo design the outer LEDs will flash in counter clockwise direction, the LED in the middle
  will flash too, but with twice the speed.