GandALF, sub for 1541 custom IC MOS 325572-01

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Gyro Gearloose
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Re: GandALF, sub for 1541 custom IC MOS 325572-01

Post by Gyro Gearloose » Tue Aug 08, 2017 12:57 am

Man, I didn't know you had an Indus GT. Was it any good?
(Also, FYI, it's "discrete". )


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eslapion
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Re: GandALF, sub for 1541 custom IC MOS 325572-01

Post by eslapion » Tue Aug 08, 2017 7:03 am

Gyro Gearloose wrote:
Tue Aug 08, 2017 12:57 am
Man, I didn't know you had an Indus GT. Was it any good?
It was nice looking and produced much less heat than an original 1541 with the PSU being external but it didn't have any striking features that would make it preferable to a drive like a 1571, since it was about the same price.
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders

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eslapion
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Re: GandALF, sub for 1541 custom IC MOS 325572-01

Post by eslapion » Sat Aug 19, 2017 9:20 pm

Ray Carlsen has tested a prototype. I am still waiting for the PCBs to make the 1st production run.
Francois,
I'm happy to report that your module works fine. I ran two
drives and copied whole disks and then individual files back and
forth, first with a copy program in a stock drive and then with
JiffyDOS installed which runs faster and is more critical of
misalignment and other problems. I found no difference between
GandALF and the stock controller chip. The programs I copied fill
virtually all of a disk and thus check drive operation at the
disk track limits. For most computer and drive diagnostics, test
software and firmware is fine but I prefer to "test it in combat"
in a real world setup. I's say your chip is ready for prime time.
Thanks! :-)


Ray
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders

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eslapion
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Re: GandALF, sub for 1541 custom IC MOS 325572-01

Post by eslapion » Tue Nov 28, 2017 4:33 am

GandALF is available and shipping. Half a dozen units have already sold.
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders

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