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Perry Burdick
Guest
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 Posted: Sat Aug 23, 2003 10:17 am Post subject: Floppy Drive Emulator |
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Hello,
I am an electronics instructor (read as NOT an engineer) attempting to
create an interface that uses the forgotten floppy drive B connector. My
circuit would attach to the floppy drive controller and pretend to be a
floppy drive with a floppy disk in it. The "floppy disk" would contain a
single file that could be accessed by software. The "file" would contain the
info being passed from the microcontroller (i.e., CPU temperature, fan
speed, an iButton security system, etc.) What I have experience in is: PIC
microcontroller programming, disk structures (FAT/directory entry), fairly
experienced in the function of the floppy drive and the controller. What I
am seeking assistance in is:
| Quote: | The specific details of the values used for formatting a track (data
address marks, etc.)
How to calculate the CRC for each sector
The specifics of each disk command (i.e., read sector, write track)
How does MFM encoding work and does it have to be 500kbps if I am
providing the timing and the index pulse.
Is there an organization that maintains floppy drive standards like the
ATA standards for hard drives?
What is the significance of the gaps?
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I am seeking information from people who might have attempted this before,
good, bad, or otherwise. Is this not feasible? Does it already exist? I am
willing to share the final solution. Please respond to
pburdick@berkshire.net Thank you very much, and thank you for not flaming me
for seeking expert advice.
Perry Burdick
There are 10 types of people; those who understand binary, and those who
don't! |
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The little lost angel
Guest
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| Posted: Sat Aug 23, 2003 4:43 pm Post subject: Re: Floppy Drive Emulator |
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On Sat, 23 Aug 2003 01:17:10 -0400, "Perry Burdick"
<pburdick@berkshire.net> wrote:
| Quote: | I am an electronics instructor (read as NOT an engineer) attempting to
create an interface that uses the forgotten floppy drive B connector. My
circuit would attach to the floppy drive controller and pretend to be a
snipped |
I think you might have better luck crossposting into groups like
sci.electronics.* and alt.comp.hardware.*homebuilt (pls check for
their actual discussion content) or something like that :)
--
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If you need basic to med complexity webpages at affordable rates, email me 
Standard HTML, SHTML, MySQL + PHP or ASP, Javascript.
If you really want, FrontPage & DreamWeaver too.
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