Reply To: Free PINS on the Cyclone iv in OSSC V1.5?

NewHome Forums OSSC & OSSC Pro OSSC – DIY Support Free PINS on the Cyclone iv in OSSC V1.5? Reply To: Free PINS on the Cyclone iv in OSSC V1.5?

#20018
marqs
Participant

If you look into RTL (ossc.v) or Quartus compilation log, you’ll notice that SD_DAT[1] and SD_DAT[2] have no drivers in current implementation. Those pins originally were wired to microSD socket so that 4-pin SD mode could possibly be supported in future, but currently SPI mode is good enough for the purpose and there’s no plans to implement SD mode anytime soon.