Honored Contributor
Honored Contributori'm back with some new findings ...
looking into the firmware of the configuration controller (PFL), I found this comment: //+----------------------------------------- //| Parallel Flash Loader (PFL) Megafunction //| //| Flash Size: 512Mb CFI (Spansion) //| Flash Data Width: 16 bits //| Option Bits Addr: 0x1FF.0000 //| Clock Speed: 100MHz //| Retry on Error: Same Page So, it seems that option bits address should be 0x1ff0000. However, in the reference manual (Table 2-8, page 2-16) the PFL option bits are at 0x3fffff0. I'm really confused. :confused: By the way, the flash image (pof) that I create with Quartus II v8.0 SP1, is not accepted by the programmer, because the PFL version of board configuration controller is v2, instead of the expected v3. :eek:
