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lesserkuma / 256M_ROM_Builder

A tool for compiling a multi-game ROM compilation that can be written to X-in-1 Game Boy reproduction cartridges.
GNU General Public License v3.0
25 stars 2 forks source link

Only GBxCart RW v1.4+ works? #3

Open hualazimo7 opened 9 months ago

hualazimo7 commented 9 months ago

Flash dumper with opensource footprint can not use this multirom, will it be supported by firmware V1.3 L1？

lesserkuma commented 9 months ago

The cartridge mapper is locked after selecting the ROM space and only 8 MiB can be selected at a time. That means the power to the cartridge must be turned off and on again while writing the ROM. GBxCart RW v1.3 is not able to do that, so because of dumper hardware insufficiency it is not supported by v1.3 L1. But yes, it works with GBxCart RW v1.4.