Original GitHub link: https://github.com/ArcheyChen/SuperCard-SDHC-DLDI
This dldi supports:
- SD init
- SDHC card (I only tested a 64GB tf card)
- Unaligned R/W
- Compatiable with TwilightMenu++ / nds-bootstrap (Can boot nds games from Supercard Mini SD now!)
The card I tested:
Supercard Mini SD (if anyone tested on other Supercard GBA cards, please let me know)
Why did I do this project? Want to make a new kernel and make the Supercard less suck :p
There are only two dldis for SCSD before this project:chishm's dldi and Moonlight's dldi
The chishm's dldi is not working, the moonlight's works, but can't init SD card, which means you need to boot from stock FW(which will do the SD init for you); and it's not open sourced, and can't support SDHC which mean you stuck at 2GB of SD card, also, it can only do aligned r/w.
chishm & libdev : for original code, but was broken on latest toolchains [https://github.com/devkitPro/libgba/blob/master/src/disc_io/io_scsd.c]
supercard team: for the official code, but the readSector function has some bug [http://down.supercard.sc/download/supercard_io.zip]
Moonlight dldi: I use ida pro to disassemble the scsd_moon.dldi, and get the working readSector function[https://www.chishm.com/DLDI/downloads/scsd_moon.dldi]
profi200: told me some info about faster crc16 codes, which improves the writing speed