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Tube❄️Time

you can see the drive ID protocol here. first it pulses the motor enable (with a drive select) to reset the state machine. then you get a bunch of pulses to clock out the data on the ready output (D7)

36 comments
Tube❄️Time replied to Tube❄️Time

and this is what happens when you put a double density disk in the drive. so the drive ID gets read every time there is a disk change, and the adapter changes the drive type depending on the disk!

Tube❄️Time replied to Tube❄️Time

ok wow a few minor tweaks to the galette PLD file and the crazy thing works! I still need to test it with the Teac drive but I've managed to replicate the PAL.

Tube❄️Time replied to Tube❄️Time

the PAL code is not very complicated. i was able to remove a bunch of terms that `espresso` added (spuriously). i also made some minor improvements.

Tube❄️Time replied to Tube❄️Time

now for the most difficult part: what should i call my clone of "The Real HD-Drive"?

root42 replied to Tube❄️Time

@tubetime
* The Ultra 4K Drive
* Disc-o-Vision
* TruFlop
* Flippy Floppy HD
I bet I can come up with some more.

Tube❄️Time replied to root42

@root42 lol, i like the ultra 4k drive

Tube❄️Time replied to Tube❄️Time

the layout for the board is simple. i'm making minor changes so it fits better in the Sony drive.

[DATA EXPUNGED]
aeberbach replied to Tube❄️Time

@tubetime bit dramatic with the heavy traces; why not just use a couple of fills for power/gnd?

Jan Schiefer replied to Tube❄️Time

@tubetime Hate to tell you, but Fartkontrol is impossible!

Henning Paul DC4HP replied to Tube❄️Time

@tubetime As "fartkontrol" is Danish, not German it's "den fartkontrol".

Tube❄️Time replied to Tube❄️Time

ok maybe this is better and somewhat more german. i kinda ran out of space for the text, which i guess makes it more authentic

Tube❄️Time replied to Tube❄️Time

OK, i haven't fabbed it out yet, but I don't foresee any issues, so here's the repository!

github.com/schlae/amiga-hddlw

Jope replied to Tube❄️Time

@tubetime amazing! If possible, could you add shots of the type plates of these drives? There are so many variants of the ones you mentioned. Hopefully us other drive modders can figure out how to modify the rest. 🙂

Tube❄️Time replied to Tube❄️Time

boards arrived! I can't wait to try it out but I need to buy some 34-pin shrouded headers.

salaxi replied to Tube❄️Time

@tubetime Awesome work mate! Thanks for all your efforts! Can you please tell me on the Sony mod, is the JC40 a part that is desoldered from another location on the drive, or is it an additional one? (can't find it in the BOM)
Thanks!!!

Tube❄️Time replied to salaxi

@salaxi it is a jumper or 0 ohm resistor. you can use a piece of wire.

salaxi replied to Tube❄️Time

@tubetime Thanks a whole lot! BTW, are you having the pcb for sale anywhere, or upped on, say, pcbway?

Tube❄️Time replied to salaxi

@salaxi nope, but it's easy to upload the fab package to your favorite service.

salaxi replied to Tube❄️Time

@tubetime That's great! Just ordered a Sony to try this. Had a Power Computing external HD drive bought new decades ago, but its' GAL went kaputt. Time to get back in action..

Luca replied to Tube❄️Time

@tubetime maybe you want to change driveselect to : gangwahl or fahrtwahlschalter :)

Joel Michael replied to Tube❄️Time

@tubetime I Can’t Believe It’s Not The Real HD-Drive

Elosha replied to Tube❄️Time

@tubetime „The Unreal/Surreal HD-Drive“

Tommy Thorn replied to Tube❄️Time

@tubetime That's totally readable and, apart from the all-uppercase, looks pretty nice. It's been a long time since I've seen /, *, and + used rather than !, &, and | but it's charming.

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