[HOW TO] Slim Gotek (SFRM72-DU26) "barudan" w/ HxC firmware

Post Reply
Yrouel
Posts: 3
Joined: Sat May 21, 2016 7:50 pm

[HOW TO] Slim Gotek (SFRM72-DU26) "barudan" w/ HxC firmware

Post by Yrouel » Sat May 21, 2016 8:07 pm

Hello I recently bought one of these slim goteks which have a 26 pin laptop floppy connector (and lack a display unfortunately).
The board is almost identical to the usual 34 pin version but there is a key difference here.
The latest firmware won't work properly on this board because since version 3.0.6.0a it has a feature involving jumper JA which is permanently tied to ground instead of being an actual jumper.
I don't know if there will be a software fix for this, in the meantime the solution is to disconenct pin 37 of the STM32 from GND. I noticed too late the three 0 ohm resistors marked RA RB RC so it should be sufficient to desolder the one for RA. Too late because I cut the pin instead using the point of a scalpel.

The only jumper needed for it to work is S1. I disabled the dual drive emulation function using the official tool to edit the config because the machine is meant to only have one drive anyway and I prefer not having a "phantom" B: drive.

Here's a picture of the board. I added the second green led and the headers needed to flash it and to use a display I borrowed from another gotek.
Image

P.S.: the "barudan" keyword in the title refers to a brand of embroidery machines for which this emulator is commonly marketed for.

Jeff
Site Admin
Posts: 6736
Joined: Fri Oct 20, 2006 12:12 am
Location: Paris
Contact:

Re: [HOW TO] Slim Gotek (SFRM72-DU26) "barudan" w/ HxC firmware

Post by Jeff » Sat May 11, 2019 7:40 pm

FYI you can since some months disable the JA input with the custom firmware service :

https://hxc2001.com/custom_fw/

Uncheck "Extra Select button".

Post Reply