Introduction - If you have any usage issues, please Google them yourself
use of the VHDL language ALTERA company's board up3 have vga signal containing a detailed analysis and explanation is a good guide. And on a razzle almost document, but the effects are not the same.
Packet : 77433626razzle.zip filelist
razzle.qpf
razzle.qsf
razzle.qws
razzle.sof
razzle.vhd