Basic steps

• VHDL or Verilog code, i.e. a "core"
• Test using simulation
• Set up input signal and test, or use the testbench that comes with the core
• If test is green, synthesize with synthesizer tool
• Place and route
• Result: bitfile
• Download to board

With FGPA comes a bootstrap that sets up routine from RAM or Flash.

Links

• Intro into programmable logic by Michael Barr
• Other articles by Michael Barr and friends
• http://www.opencores.org/
• http://www.antratek.nl/
• http://wiki.duskglow.com/tiki-index.php?page=Open-Graphics