I am using 12.1 sp1. I have found this another same problem on the forum, and asked for the solution, but I have not got response so far. I have not modified the tri-state bridge I am using the basic IP core. My problem is that I have no option to change the bus width to be fitted to the flash signal.
The Altera University program supports another flash IP core especially for DE2 board, it works in SoC but does not work with flash programmer of eclipse. It starts to write the memory addresses, but a little bit later I get this error: "Error Code: 8 for command..." I have the same issue like this, but the solution does not work for me:
http://www.alteraforum.com/forum/showthread.php?t=30752 I will start to learn Qsys instead of SoC, that is recommended to use. If I know well, Quartus 13.0 just contains only Qsys.
Thanks.