Search found 384 matches

by ZrX
Wed Jul 08, 2020 9:54 pm
Forum: Support
Topic: Texas DS990/1 Dump
Replies: 8
Views: 230

Re: Texas DS990/1 Dump

I have one of those NEC FD1165 drives myself. Requires just +5V and +24V to work. Interestingly they use the spindle with optical sensor to set the RPM, and mine spun at 720 RPM. Ended up buying another drive and while it was on its way I realised the sensor on the first one was just dirty. The seco...
by ZrX
Sat Jul 04, 2020 11:14 pm
Forum: Support
Topic: Texas DS990/1 Dump
Replies: 8
Views: 230

Re: Texas DS990/1 Dump

The scatter plot of those dumps shows really bad noise. So bad that they're practically unreadable. Not sure if there's something wrong with the disks or if the drive heads are dirty. Also, manually decoding a sector from the mill-dump shows the format is non-standard such that DTC simply can't deco...
by ZrX
Mon Jun 08, 2020 5:08 pm
Forum: General
Topic: G64 Extended format
Replies: 8
Views: 2369

Re: G64 Extended format

Most likely (peeking into DTC): Format 0 - Unknown format 1 - GCR Data 2 - CBM DOS 3 - CBM DOS Extended 4 - MicroProse 5 - RapidLok 6 - Datasoft 7 - Vorpal 8 - V-MAX! 9 - Teque 10 - TDP 11 - Big Five 12 - OziSoft Extension 0 - Unknown protection 1 - Datasoft with Weak bits 2 - CBM DOS with Cyan load...
by ZrX
Mon Jun 08, 2020 4:40 pm
Forum: Support
Topic: Not working with one of my computers.
Replies: 6
Views: 210

Re: Not working with one of my computers.

Is it the same drive that writes ok on the other computer or are they two different drives?
by ZrX
Sat Jun 06, 2020 6:12 pm
Forum: Support
Topic: Oh dear, did I fry my KryoFlux?
Replies: 18
Views: 553

Re: Oh dear, did I fry my KryoFlux?

Where do you live, if the board has been damaged and it would be viable to try getting it repaired instead of buying a new board?
by ZrX
Wed May 27, 2020 11:02 am
Forum: Dumping
Topic: Problems writing back to floppy disk
Replies: 13
Views: 323

Re: Problems writing back to floppy disk

There's Keir's open source Disk-Analyser which can convert from raw to IPF but I've never tried it so don't know what formats does it support.
by ZrX
Wed May 27, 2020 10:54 am
Forum: Support
Topic: Kryoflux v3.00 (not working) vs Kryoflux v2.72 (is working)
Replies: 2
Views: 151

Re: Kryoflux v3.00 (not working) vs Kryoflux v2.72 (is working)

Did you try the 3.00 after running 2.72, or was the board unpowered/reset in between?

The firmware is loaded on the first use after each powerup, and if you first try 2.72 and then 3.00 you're using the 3.00 software but with the 2.72 firmware loaded.
by ZrX
Sun May 24, 2020 10:29 pm
Forum: Dumping
Topic: Problems writing back to floppy disk
Replies: 13
Views: 323

Re: Problems writing back to floppy disk

The break is generated by the drive when the write current is removed from the heads. Some generate larger glitch, some shorter. KryoFlux, or DTC, when writing from raw files just writes the track from index to index as it has no further knowledge if a break should be made to appear somewhere else. ...
by ZrX
Wed May 06, 2020 7:23 pm
Forum: Support
Topic: "could not communicate with kryoflux hardware"
Replies: 13
Views: 675

Re: "could not communicate with kryoflux hardware"

The erase jumper is normally kept in the open position. Only to be closed in a rare occassion that something might've corrupted the unused flash making the CPU try to start executing code from the flash.

And again, how do the LEDs on the board behave when you try to use it?
by ZrX
Sun May 03, 2020 8:19 am
Forum: Support
Topic: How to upload?
Replies: 1
Views: 111

Re: How to upload?

AdamK wrote:
Sat May 02, 2020 7:37 pm
Hello

After some time of inactivity, I started dumping again. Unfortunately I can't remember how to upload them and I could not find that info on SPS page. How Can I do that?
pm sent.