On Mon, 1 Apr 2013 21:12:03 +0400 Maksim Kuleshov mmcx@mail.ru wrote:
Altera has two adapters for LPT: ByteBlaster II and ByteBlasterMV. They differ in polarity signal OE. "ByteBlasterMV" a jumper between pins 7 and 10 of LPT. "ByteBlaster II" has a jumper between pins 6 and 10 LPT.
exactly, I verified both with the public schematics. they are not trivial to find, so for further reference:
http://www.altera.co.jp/literature/ds/dsbytemv.pdf http://www.altera.com/literature/ug/ug_bbii.pdf
NB: the MV user guide does not have the schematic.