20 Jan
2023
20 Jan
'23
3:59 p.m.
On 1/20/23 15:31, Bill Gunshannon via cctalk wrote:
I would like something for MFM disks but that tends to
be much more
expensive than a $20 GOTEK. I have a couple of Dave Gesswein's boards
but haven't got around to building them yet. I doubt it could be done
cheaper and I don't think The Blue Pill has the horsepower to do it.
Dave uses the Beagle Bone.
The Gotek is little more than an STM32F107 (i.e. F1 MCU) with some
driver/level shifting logic and an interface. The big advantage is the
64KB SRAM. A "black pill" using the STM32F411 or STM32F405 is far more
powerful and still in the $5 range if ordered through AliExpress. Has a
better internal design for peripherals.
The Gotek really isn't much more powerful than a blue pill (uses an
STM32F103, but only 20KB SRAM).
FWIW,
--Chuck