The next step of my port-from-Arduino exercise is getting my microSD card adapter interface to work with the Seed. In Arduino-land I’m using the SdFat library with SPI. I tried SDMMC in DaisyExamples/seed with my card connected to SPI pins, with no success. Not a big surprise, since it seems to be expecting an SDIO connection. I want to do fairly simple card operations - read/write text files, get directory contents. Is there an easy way for me to do this? Thanks.
Well, I decided that throwing hardware at the problem is the way to go on this one - getting an SDIO breakout. I’m ordering a couple of these: Adafruit Micro SD SPI or SDIO Card Breakout Board - 3V ONLY! : ID 4682 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits and hoping that I’ll get access to the FatFS library “out of the box”