[comp.sys.atari.st] Setting seekrate for floppies

med@druhi.ATT.COM (DrapalME) (01/28/88)

HELP!!!!

	A few months ago, someone posted some info on how to set the
	seek rate for add-on floppy drives (e.g. I have a 5.25 360K
	Teac, which wants 6msec, not the default 3msec).  I've tried
	setting the seekrate  OS variable with no success (seems this
	is a Catch-22 variable - you have to set it before initializing
	the floppies via flopini, but you can't because flopini is
	called during boot - good design ;-().  Any info on the
	un-documented (but usable) locations to set for drive b: would
	be greatly appreciated.

					Myron Drapal
					AT&T Denver
					ihnp4!druhi!med

schuster@dasys1.UUCP (Michael Schuster) (01/31/88)

In article <2629@druhi.ATT.COM> med@druhi.ATT.COM (DrapalME) writes:
>
>	A few months ago, someone posted some info on how to set the
>	seek rate for add-on floppy drives (e.g. I have a 5.25 360K

To set the seek rate on your floppies _after_ bootup [grin], you must
use unsupported system storage locations. They are:

Drive 0  [word] Old roms: $A08    Blit roms: $A4E
Drive 1  [word] Old roms: $A0C    Blit roms: $A52

The flags are the same as for the system seek rate stored in ROM.


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