I really don’t know for certain since I am not an electrical engineer, but I would think that increasing the memory size would be somewhat difficult on a QY300…. Or any QY device… The reason being is often the amount of memory is not just what’s available, but how it’s encoded in the program itself… There may be internal checks to make sure that the amount of memory does not go over 256K, regardless of how much actual memory is physically available… The only way to know for sure is if you could reverse engineer the entire firmware, which I think is pretty much impossible without a lot of help from Yamaha. ?There are certainly many other devices where the firmware is open source or someone available based on the chip… But I don’t think Yamaha falls into the category. ?
Case in point: There has been many requests for people to be able to reverse engineer the file format that Yamaha uses to save QY data, and it is a rather arduous task without any specifications from Yamaha… Of course, strides have been made, but even after this long, it remains more of a dream that a reality… And that’s just parsing a file format… Firmware is far more complex and integrated into the hardware IMHO.
Not to say that just physically increasing the memory would not work, but be on the electrical engineering challenges, there may be programming challenges as well… And I imagine the electrical engineering challenges would be pretty extreme as well… So I guess the short answer (in my humble opinion) is probably not…. of course, I would certainly say that it’s possible… I mean, I’m a firm believer that anything is possible… But I think the effort would be extreme.
Hopefully there are some electrical engineers or maybe even a Yamaha technician that could chime in with a more definitive answer.
Best Regards,
Eric
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“The longest journey starts with the first step." ?- Lao Tzu
Eric