Hi Guys,
i started to play with FPGAs once again.. and designing myself a nice test board with a cyclone IV GX , i almost ordered a pair of EPCS16 serial config memories (ridiculously expensive for the given 16Mbit capacity - almost 20eur@farnel and 11eur@TME) but fortunately i noticed that the devel board i bought recently has a winbond SPI serial flash for config.
is the "active serial" config interface really just a plain SPI ? so can i use any SPI flash which is fast enough ? e.g. GD25Q16CSIG - supports single, dual, quad , 120MHz... should be good enough and it's 50cents for 16Mbit.