Cromemco 8" drive emulation (USB HxC)

HxC Floppy emulator support for all others computers...
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__m
Posts: 6
Joined: Sun Jun 20, 2021 7:53 pm

Cromemco 8" drive emulation (USB HxC)

Post by __m »

So I am new to USB HxC but have used SD HxC for many years with excellent results ...

I now have 5.25" images working perfectly (read only) but 8" images seem to always fail ...

By using the initflop function of Cromix I can determine that on the USB HxC the RPM is detected as 0RPM

But if I disconnect the USB HxC and connect the SD HxC on the same cable, then it works fine as is shown as 360 RPM

I have checked before testing that any image shows up as RPM360 on the Track Analyser

I have tried using a cable that the Sd HxC is on, or using a separate point to point cable where there is only the Cromemco 64FDC disk controller cabled to the USB HxC, no other devices on the cable

Some Actual Test Output

TEST 1 POINT TO POINT CABLE ONLY

Any 8" IMD or HFE

system[13] initflop
68010 XPU 168 Initflop source 1.8

Press: RETURN to supply default answers
CTRL-C to abort program
Warning: INITFLOP can destroy all disk data

Device name? fda

Testing:
Rotational speed: 0 RPM
No index pulses or counter not functioning.
Speed out of tolerance

Formatting
Disk type (C=CDOS, X=CROMIX)? <X>



system[14] initflop
68010 XPU 168 Initflop source 1.8

Press: RETURN to supply default answers
CTRL-C to abort program
Warning: INITFLOP can destroy all disk data

Device name? fda

Testing:
Rotational speed: 0 RPM
No index pulses or counter not functioning.
Speed out of tolerance


ALso fails in RDOS
Bank 0 > 0 1 2 3 4 5 6 7 8 9 A B C D E F
^ ^ ^ ^ ^ ^ ^ ^ X X X X X X X X
^[
;tz

Bank 0 > 0 1 2 3 4 5 6 7 8 9 A B C D E F
^ ^ ^ ^ ^ ^ ^ ^ X X X X X X X X
Type (F, H) F
Drive (A-D) A
Size (L, S) L
Speed (F, S) S
Error-H A4 > Drive not Ready


TEST 2 ON SHARED CABLE WITH 2 REAL DRIVES

Behaviour is the same


;tz

Bank 0 > 0 1 2 3 4 5 6 7 8 9 A B C D E F
^ ^ ^ ^ ^ ^ ^ ^ X X X X X X X X
Type (F, H) F
Drive (A-D) A
Size (L, S) L
Speed (F, S) S
Error-H A4 > Drive not Ready
A;;s20
Error-S B0 > Drive not Ready, Record not Found
A;;s15
Error-S B0 > Drive not Ready, Record not Found


seek works by which I mean I can see the track number changing in the HxCFloppy Emulator.exe window


SMALL DISK 5.25" .HFE CONTINUES TO WORK FINE

A;;tz

Bank 0 > 0 1 2 3 4 5 6 7 8 9 A B C D E F
^ ^ ^ ^ ^ ^ ^ ^ X X X X X X X X
Type (F, H) F
Drive (A-D) A
Size (L, S) S
Speed (F, S) S

Seek Tests
1 OK 2 OK 3 OK 4 OK 5 OK
6 OK 7 OK 8 OK 9 OK 0 OK
27H OK 10H OK 20H OK 0 OK 1 OK
Restore OK
27H OK
Read/Write Tests
Data Read OK


Did I miss something?

__m
Posts: 6
Joined: Sun Jun 20, 2021 7:53 pm

Re: Cromemco 8" drive emulation (USB HxC)

Post by __m »

Okay I have traced it to a wiring issue and will make a new forum post to inform others should they have the same problem

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