SD2IEC

[Kilroywashere]

Is there an SD2IEC open source project  for the commodore 64 and vic 20 ?


anyone know how i could build one  ?

[ebastler]

For whatever reason, those SD card adapters for the C64 seem to be a German thing? Most of the relevant links Google found are pointing to German websites or forums.

This guy has a history of about 12 generations of MMC and SD card adapters (in German, but Google Translate should make it digestible):  http://www.pitsch.de/stuff/mmc2iec/

The most recent homebrew version from user "Shadowolf", which seems to be the basis for the commercial product, is discussed in a looong forum thread here -- again requires translation from German:
https://www.forum64.de/index.php?thread/21931-sd2iec-aufbau-thread/

The PCB design files (Eagle) for that version are here. But I haven't seen the µC firmware at first glance; I'm sure there are links in the above forum thread.
http://www.pitsch.de/stuff/mmc2iec/sd2iec_v1_2.zip

[stj]

https://www.c64-wiki.com/wiki/SD2IEC

https://www.forum64.de/index.php?thread/46852-arm2iec-neue-hardware/

[sajattack]

I'd recommend building a Pi1541 instead. 100% compatible true drive emulation https://cbm-pi1541.firebaseapp.com/ SD2IEC is not compatible with all disks.