Search found 463 matches

by Kakemoms
Mon Nov 20, 2017 10:16 am
Forum: Hardware and Tech
Topic: What bandwidth oscilloscope for 1541 alignment?
Replies: 7
Views: 59

Re: What bandwidth oscilloscope for 1541 alignment?

Or you can run Qubes OS and have one of the VM templates as Win7. Or vmplayer with a Win image.
by Kakemoms
Mon Nov 20, 2017 8:49 am
Forum: Hardware and Tech
Topic: 6561 Die Shot Reversing Explorations
Replies: 50
Views: 763

Re: 6561 Die Shot Reversing Explorations

norm8332 wrote:I also have a non-working 6560 I could part with if that would work.


PM sent
by Kakemoms
Mon Nov 20, 2017 6:30 am
Forum: Hardware and Tech
Topic: 6561 Die Shot Reversing Explorations
Replies: 50
Views: 763

Re: 6561 Die Shot Reversing Explorations

Hmm.. We have a microscope in the lab with good optics. Only thing is that I don't have a spare 6560 to strip. @Kakemoms, regarding what @norm8332 said about the difficulty of decapping, do you think you'd be geared up to be able to do the decapping as well (assuming I could source a 6560 for you)?...
by Kakemoms
Sun Nov 19, 2017 2:43 pm
Forum: Hardware and Tech
Topic: 6561 Die Shot Reversing Explorations
Replies: 50
Views: 763

Re: 6561 Die Shot Reversing Explorations

Hmm.. We have a microscope in the lab with good optics. Only thing is that I don't have a spare 6560 to strip.
by Kakemoms
Sun Nov 19, 2017 2:21 pm
Forum: Hardware and Tech
Topic: SuperCPU for the Vic-20
Replies: 81
Views: 3631

Re: SuperCPU for the Vic-20

Ok. I have started checking around and it looks like Mouser was promised a dispatch date of 6.November , but still haven't recieved anything. I didn't order this from them, but it probably reflects the trouble Lattice has to get this component qualified. Anyway, if Mouser gets some before my supplie...
by Kakemoms
Sun Nov 19, 2017 2:41 am
Forum: Hardware and Tech
Topic: Dead as a Dodo
Replies: 8
Views: 190

Re: Dead as a Dodo

RCA cable adapters may or may not work. I have one thst gave vidro on the red cable out (which is normally audio), and that goes to composite VIDEO in.

If you have a scart in on your TV you need an adapter with female plugs in it, and the video goes into the yellow plug on that one.
by Kakemoms
Sat Nov 11, 2017 12:00 pm
Forum: Hardware and Tech
Topic: SuperCPU for the Vic-20
Replies: 81
Views: 3631

Re: SuperCPU for the Vic-20

My latest post autologged itself out, and insted I was given a login page and the post was sent to forum heaven. A short summary of what was written: There has been no answer from Lattice on the new MachXO3-9400 delivery, so they are late which is really annoying. My Openbuilds PNP machine is nearly...
by Kakemoms
Fri Nov 03, 2017 7:12 am
Forum: Hardware and Tech
Topic: 6561 Die Shot Reversing Explorations
Replies: 50
Views: 763

Re: 6561 Die Shot Reversing Explorations

http://sleepingelephant.com/ipw-web/bulletin/bb/viewtopic.php?t=7629&start=39 :shock: This would explain why display starts again in the last displayed line when YPOS=0! Yes, it would explain that. :D That "last" line continues from the current text offset, but then the text offset mu...
by Kakemoms
Tue Oct 31, 2017 1:49 pm
Forum: Hardware and Tech
Topic: 6561 Die Shot Reversing Explorations
Replies: 50
Views: 763

Re: 6561 Die Shot Reversing Explorations

I've started wondering now whether this might be associated with the vertical sync pulses but I have yet to confirm this. Just a suspicion at the moment, but I mean what else could be toggling like that at those points along the line (remembering a whole line is 71)? I think I've now confirmed this...
by Kakemoms
Mon Oct 30, 2017 10:50 am
Forum: Hardware and Tech
Topic: 6561 Die Shot Reversing Explorations
Replies: 50
Views: 763

Re: 6561 Die Shot Reversing Explorations

So what we're saying then is that when the X counter value hits 2, this latch toggles, then when it hits 6 it toggles again, and then again at 38, and again at 41. Quite clearly these four are closely related then. I've started wondering now whether this might be associated with the vertical sync p...
by Kakemoms
Sun Oct 29, 2017 4:02 pm
Forum: Hardware and Tech
Topic: SuperCPU for the Vic-20
Replies: 81
Views: 3631

Re: SuperCPU for the Vic-20

Just a snapshot from the current VGA output of the SuperVixen 0.76: IMG_6015.JPG Some bugs remain, but generally it shows a character set from memory using a screen memory area (as for a Vic-20) with a separate color ram. There is no 3XHQ scaling yet, only nearest neighbour scaling. The output is cu...
by Kakemoms
Mon Oct 23, 2017 2:03 am
Forum: Hardware and Tech
Topic: SuperCPU for the Vic-20
Replies: 81
Views: 3631

Re: SuperCPU for the Vic-20

Short update: The new boards arrived last week and will be tested once the MaxhXO3L-9400ALV arrives. I have asked the supplier for an update as they should be shipped this week (12 week delivery time). Hopefully there are no more delays from Lattice. The VGA display port is currently being tested. T...
by Kakemoms
Sun Oct 22, 2017 3:15 am
Forum: Hardware and Tech
Topic: Disk Drive Repair CBM 8250 - Searching
Replies: 5
Views: 171

Re: Disk Drive Repair CBM 8250 - Searching

I hope to learn about the disk drives to better repair them. I have looked through the disassembly in the past, and the code tells more about the testing that then manual. I also found a list of tips on what to check for as the blink code only gives a general idea. Maybe I will write a guide in the ...
by Kakemoms
Wed Oct 04, 2017 2:28 pm
Forum: Hardware and Tech
Topic: SuperCPU for the Vic-20
Replies: 81
Views: 3631

Re: SuperCPU for the Vic-20

A short update: While we wait for the MachXO3L-9400, I have been debugging and preparing for PCB mounting and soldering. I have decided to order a fresh set of PCBs to get the first devices as streamlined as possible to prevent hand fixing. The PCBs will be mounted with my freshly built openPNP mach...
by Kakemoms
Mon Oct 02, 2017 10:10 pm
Forum: Collecting and History
Topic: VIC serial number registry
Replies: 14
Views: 454

Re: VIC serial number registry

Great work! I have started by adding one. Will add the rest of my stock later.

It would be nice if we could add other Vic-20's as well (and not be listed as owner)?

Go to advanced search