Closed cmaxwellau closed 3 years ago
STM32F103 doesn't have OTG.
I'm developing a custom gotek/ffosd board using a pair of STM32F105RBT6
It's based on Sundbyk's design and will be internally mounted in an A600.
Then yes you can. It's out of scope for FF-OSD though. My interest is seamless integration into pristine existing hardware.
No problem. Luckily the 103 and 105 in 44 pin variety have virtually the same footprint, and the price difference is negligible. My aim is to similary maintain a pristine interior of my A600 & A1200 without all the mess of bluepills, ribbons and 3d printed bracketry with a small footprint gotek based entirely on your Hardware Mods list. Thanks for all the fantastic work you've done on FF and OSD.(just to name a few)
On Fri, Nov 8, 2019, 01:45 Keir Fraser notifications@github.com wrote:
Then yes you can. It's out of scope for FF-OSD though. My interest is seamless integration into pristine existing hardware.
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By the way I have a plan next year to port FlashFloppy and FF_OSD into an integrated build targeting STM32F730R8. Could be interesting. Those chips have dual OTG.
Haven't had a look at those chips yet.
I've just gotten my first prototype boards for Gotek+FFOSD with 2x105s. Happy to share/open up the kicad repo if there's interest. It also includes CIA adaptor boards for THT/SMD sockets.
On Mon, 9 Dec 2019 at 18:18, Keir Fraser notifications@github.com wrote:
By the way I have a plan next year to port FlashFloppy and FF_OSD into an integrated build targeting STM32F730R8. Could be interesting. Those chips have dual OTG.
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I'm happy to put designs up in the wiki.
@cmaxwellau I'd be very interested in your combined Gotek/OSD design as I was planning to do something similar (based on OpenFlops). My aim is to design a board that fits into a 5,25" bay alongside a real 3,5" floppy, while maintaining all of FF's goodies, like rotary, speaker, and OSD.
Support a USB HID keyboard on the OTG port and generate kb_data.
PS/2 example for atmel
This would give us the same functionality of a SUM600/SUM1200.