Heathkit H89 with Hard Sectored Disks

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akuker
Posts: 4
Joined: Sun Sep 01, 2024 10:39 pm

Heathkit H89 with Hard Sectored Disks

Post by akuker »

Good afternoon!

I've been trying to get my Gotek with HxC firmware working with my Heathkit H89. It looks like there have been a couple different forum threads on this in the past, but one in particular didn't say how/if it was resolved (viewtopic.php?p=17864&hilit=heathkit#p17864).

I'm seeing something similar where my H89 will boot from a couple of HDOS disks, but not all. I grabbed a handful of hard sectored disk images to try out from the SEBHC wiki and converted them to HFE v3 format.

Here's my configuration:
- PC Floppy drive cable
- Gotek installed after the twist
- S0 jumper installed
- HXC FW: 5.2.3.1a
- HW Ver: 004 1C6-410
- HxCFloppyEmulator v2.15.8.5

I uploaded all of the source (H8D) files and the HFE files I generated to: https://drive.google.com/file/d/1dyN-bm ... sp=sharing

Of these images:

Booted correctly:
- HDOS-2-0-H-Z-37-EVALUATION-DISK-C-HEATH-CO-1981-890-156_007E08BB_H8D.hfe

Started booting, then immediately went back to "H:" prompt without error
- CPM-TURBOPASCAL3-2_00E119D8_H8D.hfe

System hangs after executing "Boot" ROM command
- CPM-TURBOPASCAL3-1_00BCF79E_H8D.hfe
- HDOS-2-0-ISSUE-50-06-00-COPYRIGHT-C-HEATH-CO-1980-890-64_008C5D3E_H8D.hfe
- MBASIC-COPYRIGHT-C-1979-BY-MICROSOFT_007A9467_H8D.hfe
- SYSCMD-PLUS-SYSTEM-COMMAND-PROGRAM-C-1981-D-G-ELECTRONICS_007A2A8C_H8D.hfe
- Z25-Z37-Z90-DIAGNOSTIC-TEST-DISK-REV-020182_007FA5D0_H8D.hfe

I also tried converting these images with the latest HxcFloppyEmulator beta (v2.16.2.1), but the resulting HFE files were binary identical.

Would anyone be able to take a look at these generated images and see if there is something obviously wrong with them that would prevent them from booting? Please let me know what additional information I can provide!
Jeff
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Re: Heathkit H89 with Hard Sectored Disks

Post by Jeff »

Hello,

In fact the whole hard sectored support need to be redesigned. The HFE v3 images trick currently used is not reliable at all, the index are not stable.

The plan is : Add a section in the HFE v1 format to define the indexes position instead of using HFEv3 indexes opcodes. The emulator will generate the index pulses from this list.

But are you still there ?
akuker
Posts: 4
Joined: Sun Sep 01, 2024 10:39 pm

Re: Heathkit H89 with Hard Sectored Disks

Post by akuker »

I'm still here :)

I've upgraded the floppy controller in my Heathkit to one that supports soft sectors, so this functionality isn't super critical for me anymore.
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