I appreciate the response. I'm waiting on a usb to floppy adapter and I'll leave my real floppy controller disabled for the time being. Purportedly, USB floppy works in MS-DOS and possibly Freedos as well. It's Windows 98SE that is questionable because if I'm not mistaken Microsoft screwed up the driver.
March 21, 2020 1:57 PM, "Ralf Quint" <freedos...@gmail.com (mailto:freedos...@gmail.com?to=%22Ralf%20Quint%22%20<freedos...@gmail.com>)> wrote: On 3/20/2020 6:55 PM, mich...@robinson-west.com (mailto:mich...@robinson-west.com) wrote: As this is an industrial single board computer that's 20 years old, I'm wondering if I can get the source code to the bios?I guess you would have to check with the manufacturer for this. I know, dealing with a company in Shenzen can be a bit tedious, but I also encountered some folks over there who are quite eager to help... Windows XP picks up the floppy controller, it just gets an unrecognized error when I try to format a disk. Freedos 1.3 tries to use the floppy drive, but I cannot format a disk there either getting a DMA overrun error. When you say XP "picks up the floppy controller", what are the resource values shown in the device manager? It could be that the addon card (that's the one that provides the floppy interface, right?, I only got a one page "datasheet" for a EVOC FSC-1714VNA board, which lists only 2 IDE interfaces) is not using the default floppy controller ports, though at least through the IBM-AT and PS/2 models, the IBM BIOS (and probably all Phoenix/Award version of that time) allowed for 4 floppy drives). I also remember to have had problems using a 4 floppy drive setup in a newer (back in the mid '90s) PC because the BIOS dropped the support for the 3rd and 4th drive and we needed to use a special driver, that was intercepting the default BIOS interrupt calls to the floppy drives to deal with those additional floppys on the addon controller board due to the use of a different (set of) I/O port(s)... Ralf (https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon) Virus-free. www.avast.com (https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link)
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