2022-01-12 20:05 back in 2020 I had some time at home (!) so I built a little computer. this year I’ve also had some time at home (!) so I pulled it back out and started work on an SD card driver --- 2022-01-12 20:36 as is usual for small embedded devices, SD cards mostly do the right thing for whatever bus they’re on (SPI in this case), but have some interesting quirks and timings. documentation is available in the form of the “simplified” specs, which are missing important details