07:47 <FabM> Hello, Has anyone here tested connecting an sd card to the tangnano4k?

15:05 <_florent_> FabM: Hi, I don't think so, but if you are planning to use LiteSDCard, the core is vendor agnostic so should work on Gowin without too much work (maybe just adding some primitives support to https://github.com/enjoy-digital/litex/blob/master/litex/build/gowin/common.py).

15:13 <FabM> Thanks _florent_, I want to add a sdcard reader on my Gameboy HDMI snes controller to be able to use it as a standalone console (with cortex m3 as proc)

15:17 <_florent_> FabM: Ok I see :) With LiteX you can find in LiteX-Boards two kinds of support: --with-spi-sdcard (that just uses a SPI core + SDCard in SPI Mode) and --with-sdcard (that uses LiteSDCard + SDCard in SD Mode).

15:17 <_florent_> FabM: The BIOS support both

15:18 <FabM> Ho yes, SPI Mode is exactly what I'm looking ffor

15:18 <FabM> (less pin used)