Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!udel!gatech!hubcap!hutch%citron.cs.clemson.edu
From: hutch%citron.cs.clemson.edu@hubcap.clemson.edu (David Hutchens)
Newsgroups: comp.sys.ibm.pc
Subject: Need gap lengths for 3.5" diskettes
Message-ID: <6637@hubcap.clemson.edu>
Date: 29 Sep 89 16:59:21 GMT
References: <5498@alvin.mcnc.org>
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I am writing a device driver for a 3.5" floppy diskette drive.
I am working with a True Blue PC/AT with the standard controller.
I need to know the proper values to use for gap lengths in
reading/writing and formatting.

Could someone fill in the following table?

	-------------------------------------------------------------------
	|               |  720K in DD drive | 720K in HD drive | 1.44Mb   |
	-------------------------------------------------------------------
	|  format gap   |        ???        |       ???        |   ??     |
	-------------------------------------------------------------------
	|read/write gap |        ???        |       ???        |   ??     |
	-------------------------------------------------------------------

Nobody seems to publish this information.
Any help would be much appreciated.

	David Hutchens
	hutch@hubcap.clemson.edu
	...!gatech!hubcap!hutch