Originally posted by: xmitr
Is there an emulator available which would connect to the floppy cable and allow you to plug a flashdrive into it? We have a scientific instrument which has a floppy for firmware upgrades and storage of operating files, but there is no usb port on the instrument. We'd like to use flashdrive instead of floppies.
Yes there is such a device.
I helped create it.
The device works by completely replacing the floppy drive with an interface that accepts memory cards.
The floppy is a dumb interface, meaning the drive itself has no processor of its own.
It relies on the host pc for everything , from start motor, move head, read bit, move head, read bit, stop motor. It was done this way because at the time of its invention a cpu was expensive and putting one in a floppy drive was considered a waste since you already had a cpu on the host.
To do the interface requires a cpld, a cpu, memory, eprom to store the code.
You basically have to emulate a floppy on the cpu, read data off the memory card and convert it to the floppies format. It does not allow you to use a floppy interface as a card reader like a usb port would. Your limited to the 1.4mb file size.
To make the floppy port a usb like reader is not possible without re-writing bios files and even then it may have chipset limitations.
Total cost is about 200.00 per device so its not something for the casual user.
The only reason we did this is because we had 5 systems that are non replaceable that require firmware updates and only have a floppy interface that can be used.
We wanted to make the device public but ran into a problem with Nec.
Nec gave us some code that was necessary for the design and have refused to allow it to be made public. Without that code its not possible to make the device.