I’m not familiar with this board set, so I read through the messages. Someone mentioned a PIC microcontroller driving the sound, but I don’t see a PIC on the PCB. There is an EMC EM78P447AP by the audio section. That’s an ELAN microcontroller that’s very similar to a PIC. The datasheet says this chip is one-time programmable, which means it’s an EPROM with no window. That means that bits can’t be seen visually, even if the chip is decapped. The datasheet also says there’s a protection bit to prevent the code from being read.
There’s no programming info in the datasheet that I found, and none of my EPROM programmers support it. So at this point I don’t know where to start. I’ll look for more information about the chip and see if anyone has dumped one yet.
Sean
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what now?
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Re: Cadillacs and dinossaurs bootleg the bgm sound loop version
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