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Make X24C02 only enter read/write state if I2C address matches; fixes SD Gundam Gaiden 2

This commit is contained in:
Alex W. Jackson 2024-05-07 17:32:15 -04:00
parent c4dd4f5153
commit 38bb5b1f51
1 changed files with 5 additions and 2 deletions
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7
src/boards/bandai.cpp
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@ -178,9 +178,12 @@ static void x24c02_write(uint8 data) {
x24c02_addr <<= 1;
x24c02_addr |= sda;
} else {
if (sda) // READ COMMAND
if ((x24c02_addr & 0x78) != 0x50) { // WRONG DEVICE ADDRESS
x24c02_out = 1;
x24c02_state = X24C0X_STANDBY;
} else if (sda) // READ COMMAND
x24c02_state = X24C0X_READ;
else // WRITE COMMAND
else // WRITE COMMAND
x24c02_state = X24C0X_WORD;
}
x24c02_bitcount++;