then, testing it in two emulators, it said 'checksum bad.' I then tried a gui, the 'fixed' rom showed up. it said that the checksum was wrong, then fixed it. I had fixed trials of mana using a command line, but this didn't seem to work with final fantasy v. You need to deactivate the SRAM by not pulling the CE/CS pin low during the read operation by changing the readByte_GB function in GB. alrite its weird, it seems if you have the bad checksum messages and cant get the roms to load, if you do a hard reboot and get back into the emulator all the. I found a very odd game when it comes to its checksum: final fantasy v. I already formatted the SD cart and copied the files to root, tried. The cart reader tries to read data from both the flash and the SRAM at the same time resulting in errors. I have a problem, all the games I tried to read are giving checksum error or crc error. If this schematic is correct then the SRAM is connected directly to the cart edge without being controlled by the MBC5-D like you would suspect in a standard MBC5 cartridge. Even carts with SFX and SA1 chips work great too.Īny advice you can offer would be super helpful and appreciated. SNES, N64, and Genesis cartridge dumping works perfectly. I'm using a dedicated 5v/2A power supply, and am also running the latest firmware. This code represents a ROM with known faulty checksum routines. I tried dumping the same cartridge repeatedly and the resulting file was different each time - the errors were in different places after each dump. Bung Fix, Bung released a programmable cartridge compatible with the Game Boy. Looking at the files in a hex editor reveals that the first 1/8 of the file matches perfectly, but after a certain point there are big blocks of incorrect data and also blocks of just zeroes. The reader sees the cartridges and even computes the checksum "correctly" but the resulting file is always corrupt. Unfortunately, I seem to be unable to dump GBA games properly. I purchased the reader preassembled from a seller on Etsy and he guaranteed all the functions would work, which (as far as I was able to test) they did. I just recently acquired a collection of GB/GBA games and have never used the GB functionality of my reader before. It makes ordering games from eBay so much more fun. Hey Sanni! First time posting after using my reader for 2+ years with no issues at all- I really appreciate your hard work on this project.
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