Gotek with HP 1662E Logic Analyzer?

[torro]

I'm trying to get my HP 1662E working with a gotek and HxC. (The original FDD is is a unknown state and I don't have any of the original disks)

I have looked through the list of supported devices here:
https://hxc2001.com/download/floppy_dri ... upport.htm

And while there is support for the 165X with config files and a line for the 1660AS I can't find anything for the 1662E (Maybe it's compatible with the 1660AS?)

HP uses a Teac FD-05HF drive which is a slim FD with a 26 pin ribbon cable but there is some PCB addon to the FDD converting it to a 34 pin connector. There is also a 74LS04 inverter on the PCB.

20260108_180925_50.jpg (91.01 KiB) Viewed 587 times

FDD flat ribbon cable pin 9 connects to inveter input.
Output of inverter connect to 34 pin connector, pin 4. Which is for DD/HD according to the pinouts here:
https://stonemarmot.com/rantrave/gotek.html

I'm trying to reflash my HP as it has a bad ROM. I've managed to get the .IMG file from HP as well as 166xE.zip which contains the rom files I need.

From a bit of research it looks like the HP 1662E uses LIF format, though it looks like DOS is supported as well. On the HP LA I can format as LIF or DOS

I've tried loading the IMG file but not having any luck. I've read a few posts that said I need to use HFE format but then how do I convert the IMG file to HFE, or create a HFE image and copy the rom files into it?

Update: I've done some more reading up and use the HxC software to load the IMG file and export to HFE

Screenshot from 2026-01-09 10-53-47.png (113.84 KiB) Viewed 578 times

Have also set the jumpers as per this guide (Which I'm hoping is the same for the 1660ES)

gotek_jumper_and_dc_reset.jpg (90.98 KiB) Viewed 578 times

For the config file I've tried the normal mode and indexed mode.
HP is not reading the image

[torro]

Haven't been able to get it working on HxC but did get it working on flashfloppy after many many hours.

Needed to set specifically this setting in the CFG file:
pin02=nchg

My FF.CFG file is:

interface=shugart
pin02=nchg
pin34=rdy
chgrst=pa14

Still not sure why it''s not working on HxC but will keep digging.

[torro]

Some more digging around and got it working with HxC. Need to set

Pin 2: nDiskChange 1