I have a pair of SFRxxx-DU26 (a 720 and a 1M44 model) used for laptops with 26 Pin FFC cables...which for some reason was listed by KeirF as a model to avoid (considering how easy it was to get it working, I am not sure why either).

As long as you solder in an OLED display they seem to work just fine.

Hi, not sure if this helpful, but here's my Gotek story.
Re: Gotek fails floppy drive test

I used a USB-TTL adapter cable and that old flashing software of the maker of the FPGA(?) that the Goteks use.

Of course, many new Flash Floppy versions were released in the meantime.
The problems I mentioned should nolonger occur.

Jo22 wrote on 2021-02-15, 20:01:

Hi, not sure if this helpful, but here's my Gotek story. Re: Gotek fails floppy drive test […]
Show full quote

Hi, not sure if this helpful, but here's my Gotek story.
Re: Gotek fails floppy drive test

I used a USB-TTL adapter cable and that old flashing software of the maker of the FPGA(?) that the Goteks use.

Of course, many new Flash Floppy versions were released in the meantime.
The problems I mentioned should nolonger occur.

Microcontroller. The Goteks are specifically based on a STMicro STM32F105. Flashfloppy development moves pretty fast - the last version as of Feb 2021 should be v3.22.

ajacocks wrote on 2021-02-15, 02:35:

Yep, it appears to, as of version 0.9.23a:

https://github.com/keirf/FlashFloppy/blob/mas … r/RELEASE_NOTES

- Alex

Thank you, one day i try to flash my Gotek with FlashFloppy then.

I read that, once you flash your gotek (no matter if with FlashFloppy, HxC, etc), you won't be able to return to original gotek firmware....
Isn't it possible to read the gotek firmware before flashing it ???
I use Linux and, both software used to flash gotek have option to read from flash.... anyone ever tried that as a method to "backing up" the original gotek firmware ???
By the way, the aplications are:

"dfu-util" and "stm32flash".

I'm willing to try those "read options" when my gotek arrives......

monsterbash wrote on 2021-02-16, 19:20:

I read that, once you flash your gotek (no matter if with FlashFloppy, HxC, etc), you won't be able to return to original gotek […]
Show full quote

I read that, once you flash your gotek (no matter if with FlashFloppy, HxC, etc), you won't be able to return to original gotek firmware....
Isn't it possible to read the gotek firmware before flashing it ???
I use Linux and, both software used to flash gotek have option to read from flash.... anyone ever tried that as a method to "backing up" the original gotek firmware ???
By the way, the aplications are:

"dfu-util" and "stm32flash".

I'm willing to try those "read options" when my gotek arrives......

No, the STMicro STM32F10x series of devices zeros out the storage when you unlock/unprotect the flash for access - it's a built-in design feature, and that's true regardless of using the STM32 flashing suite in Windows or dfu-util in Linux/MacOS. That's why no one is able to go back to the original Gotek firmware - No one was able to save a copy in the first place.

ragefury32 wrote on 2021-02-17, 02:29:

monsterbash wrote on 2021-02-16, 19:20:

I read that, once you flash your gotek (no matter if with FlashFloppy, HxC, etc), you won't be able to return to original gotek […]
Show full quote

I read that, once you flash your gotek (no matter if with FlashFloppy, HxC, etc), you won't be able to return to original gotek firmware....
Isn't it possible to read the gotek firmware before flashing it ???
I use Linux and, both software used to flash gotek have option to read from flash.... anyone ever tried that as a method to "backing up" the original gotek firmware ???
By the way, the aplications are:

"dfu-util" and "stm32flash".

I'm willing to try those "read options" when my gotek arrives......

No, the STMicro STM10x series of devices zeros out the storage when you unlock/unprotect the flash for access - it's a built-in design feature, and that's true regardless of using the STM32 flashing suite in Windows or dfu-util in Linux/MacOS. That's why no one is able to go back to the original Gotek firmware.

no way to use a chip programmer to read it?

Not sure why anybody would deliberately want to either backup or restore the original firmware, as it really is garbage.

Sphere478 wrote on 2021-02-17, 04:30:

ragefury32 wrote on 2021-02-17, 02:29:

monsterbash wrote on 2021-02-16, 19:20:

I read that, once you flash your gotek (no matter if with FlashFloppy, HxC, etc), you won't be able to return to original gotek […]
Show full quote

I read that, once you flash your gotek (no matter if with FlashFloppy, HxC, etc), you won't be able to return to original gotek firmware....
Isn't it possible to read the gotek firmware before flashing it ???
I use Linux and, both software used to flash gotek have option to read from flash.... anyone ever tried that as a method to "backing up" the original gotek firmware ???
By the way, the aplications are:

"dfu-util" and "stm32flash".

I'm willing to try those "read options" when my gotek arrives......

No, the STMicro STM32F10x series of devices zeros out the storage when you unlock/unprotect the flash for access - it's a built-in design feature, and that's true regardless of using the STM32 flashing suite in Windows or dfu-util in Linux/MacOS. That's why no one is able to go back to the original Gotek firmware.

no way to use a chip programmer to read it?

No - the read protection is built into the microcontroller itself - putting it into a chip programmer will do nothing that you otherwise could already do by hooking various leads and test points on the board.

PTherapist wrote on 2021-02-17, 05:11:

Not sure why anybody would deliberately want to either backup or restore the original firmware, as it really is garbage.

It is - the ridiculous (and kinda laughable) requirement to divvy your flash drive to hundreds of 1.44MB partitions makes it downright comical to use.

That being said, I killed my UFA1M44-100 (the USB version of the Gotek) by triggering the unlock, and KeirF (the author of flashfloppy)didn’t even want to touch it (that is a dual controller board - one for handling floppy emulation and the other used for handling USB mass storage, communicating to each other via I2C or SPI). I also can’t find original Gotek firmware so I can at least unbrick it. He has a point though not supporting it with flashfloppy....no idea how a 1.72MB XDF formatted USB floppy setup might fare on, say, an oldschool Toshiba laptop with USB floppy drive support.

ragefury32 wrote on 2021-02-17, 05:27:

That being said, I killed my UFA1M44-100 (the USB version of the Gotek) by triggering the unlock, and KeirF (the author of flashfloppy)didn’t even want to touch it (that is a dual controller board - one for handling floppy emulation and the other used for handling USB mass storage, communicating to each other via I2C or SPI). I also can’t find original Gotek firmware so I can at least unbrick it. He has a point though not supporting it with flashfloppy....no idea how a 1.72MB XDF formatted USB floppy setup might fare on, say, an oldschool Toshiba laptop with USB floppy drive support.

What's the difference between UFA1M44-100 and SFR1M44-U100K ?? By the pics on AliExpress I saw no difference !!!

Cheers !!!

monsterbash wrote on 2021-02-25, 14:14:

ragefury32 wrote on 2021-02-17, 05:27:

That being said, I killed my UFA1M44-100 (the USB version of the Gotek) by triggering the unlock, and KeirF (the author of flashfloppy)didn’t even want to touch it (that is a dual controller board - one for handling floppy emulation and the other used for handling USB mass storage, communicating to each other via I2C or SPI). I also can’t find original Gotek firmware so I can at least unbrick it. He has a point though not supporting it with flashfloppy....no idea how a 1.72MB XDF formatted USB floppy setup might fare on, say, an oldschool Toshiba laptop with USB floppy drive support.

What's the difference between UFA1M44-100 and SFR1M44-U100K ?? By the pics on AliExpress I saw no difference !!!

Cheers !!!

It does? How is that possible?! AliExpress vendor pics are infallible. INFALLIBLE. It’s not like their vendors have a known history of plagiarizing from each other and talking out of their asses...

My GOTEK just arrived !!!
Here what I've done so far:

1) solder pinheaders for the "programing section" and for the "select" button;
2) jump wire pins for programming the unit using USB-A to USB-A cable;
3) plug the unit on computer using USB-A cable and <lsusb> command to see how Linux detects the unit;
4) command line <dfu-util> to unprotect the STM32;;
5) command line <dfu-util> to flash the unit with FlashFloppy;
6) power up the unit to see if everything ok - seems to be OK !!!

Now, I'm trying to identify the pinnouts from a rotary encoder pulled out from an old kenwood car audio...... 5 pins, but do not seems to be standard pinnouts...

Missed 1 pic
Powering up Gotek with FF:

Hi all !!!

Since i'll be using the gotek with a roland synth (XP-60), it seems that the best option is to use the "native mode" from falshfloppy, witch is basically using "floppy image files"
So, I'll have to deal with:

1) "reading" files from floppy TO the synth.
in this case, I'll have to "create floppy images" with the files I want to "send" to the synth.

2) "writing" files from the synth to the floppy
here, it seems that I just have to make an "empty" 1.44 floppy image and "open" it in the synth....

What would be the best option for dealing with floppy images (create blank images and create images with files) ???
I use Linux, by the way...
So far I'm using: dd / mkfs.msdos / mcopy / mdir

Thanks in advance !!!