Specifically in my case, I have a Korg Triton Le 88 ROMpler keyboard that has a slot for Smart Media Card and my thinking is that instead of buying a Smart Media Card reader and card and all of that stuff it’d be cool to open up the keyboard and solder a connector onto the pins that the card slot of the keyboard connects to, and then with a bit of extra hardware to be able to connect my computer to it so that I can expose files directly from the computer to the Triton Le and have the Triton Le see it as though there was a Smart Media Card there.
Relatedly I found myself wondering the other day if anyone has done any work on making hardware and software to interface with Smart Media Card. Except it doesn't actually do that - there's only 4 different speeds, as you can see in.
Even if the disk is spinning at a constant RPM, knowing where the head is located allows that magnetic flux data to be turned back into the appropriate bitstream (or vice versa for writing) and allows handling CLV disks even though they're in a CAV drive. It also means that 800K Mac disks (the largest format which used variable rates) can't be read on normal PCs, which lack support for variable rates.įlu圎ngine works at a lower level than the standard PC floppy interface - it allows the OS to look at the actual magnetic flux data on the disk, whereas the standard PC floppy interface will only pass back the interpreted bits. Macs did this in order to increase the amount of data you could store, at the cost of additional complexity in the drive to support spinning at different rates. If, instead, the drive spins at a Constant Linear Velocity (CLV: ie, the same amount of magnetic media passes under the head per second no matter where on the disk you're accessing), each bit can take up the same amount of magnetic media, which means you can store more bits per track towards the outer edge of the disk. If you're writing the same number of bits per second, this means each bit takes up a larger amount of magnetic media at the outer edge compared to the inner edge. This means that towards the outer edge of the disk more magnetic media is passing under the head per second than towards the inner edge of the disk (with a larger circumference, a constant angle will represent a longer chunk of media). Context, since it's not spelled out with a lot of background in the article: most floppy drives spin at a fixed RPM, which is referred to as a Constant Angular Velocity (CAV: ie, no matter how far out on the disk you are, the disk rotates by a constant angle per second).
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