Added support for SD Card Add-on to use RTC for Creation/Modification Date/Time stamps.
Added code to support RTC such as startup, automatically updating time based on date compiled, and allowing for any script to add a Date/Time stamp.
In option.h add // in front of #define fastcrc and remove // in front of #define slowcrc to change CRC32 calculation to slow.
// Define CRC method for dumping N64 ROMs
//#define fastcrc //crc will be calculated during dumping from memory
#define slowcrc // crc will be calculated after dumping from SD card
Uncomment #define clockgen_installed in options.h and switch CLK1 switch to ON position. With Adafruit clockgen the eeprom now runs at the correct 2Mhz.
Thanks to skaman.
The code does a deeper sanity check of the header data when initializing the cart. It avoids having to constantly press buttons to reinit the cart. Carts can still not initialize the MBC properly but that's normal for the WonderSwan. Clean the pins on the cart and check that the cart and adapter are seated properly. If the cart doesn't unlock immediately, then let the sketch run for a bit. For stubborn carts, a power cycle might be necessary.
The sketch fixes a few typos, removes some trailing spaces, and adds another ROM size (used by Benesse Pocket Challenge V2 carts).
The code change only affects readCHR(). It shortens the check to a single byte but that is enough to identify the four VRC4e carts. The original list of VRC4e carts that I referenced only showed Boku Dracula-kun and Tiny Toon Adventures. I found out that all four of the Mapper 23 VRC4 carts use the VRC4e submapper. Mapper 23 includes VRC4f but there are no known examples (BTW, VRC4f = VRC2b).
