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
