Search found 26 matches

by Gunstick
Wed Dec 05, 2018 4:34 pm
Forum: HARDWARE DISCUSSIONS
Topic: Project: HDMI/DVI out for STFM
Replies: 507
Views: 53613

Re: Project: HDMI/DVI out for STFM

You didn't specify how you are reading the bus capacitance. If you are just reading from unpopulated RAM space, then this doesn't depend on Shifter at all. It's the classic setting of the screen start address outside of physical RAM. Usually you see noise, but in fact that noise is the bus activity...
by Gunstick
Tue Dec 04, 2018 11:50 pm
Forum: HARDWARE DISCUSSIONS
Topic: Project: HDMI/DVI out for STFM
Replies: 507
Views: 53613

Re: Project: HDMI/DVI out for STFM

Btw, did you try that with all the Shifter versions? I didn't test, but I suspect the behavior would be different with an IMP shifter. There are also minor differences when using an IMP MMU as well. Oh, if I knew which STs have an IMP. Looks like I'll need to open them all up. Well the one problem-...
by Gunstick
Tue Dec 04, 2018 11:04 am
Forum: HARDWARE DISCUSSIONS
Topic: Project: HDMI/DVI out for STFM
Replies: 507
Views: 53613

Re: Project: HDMI/DVI out for STFM

For testing shifter accuracy with the bus capacitance remanance, you can use this and compare if it looks like that.
(at minute 54)
:D
by Gunstick
Tue Dec 04, 2018 4:35 am
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: The Union Demo on gotek?
Replies: 7
Views: 1144

Re: The Union Demo on gotek?

If you go here https://demozoo.org/productions/68152/ and scroll down to the "packed in" section There are 4 versions of the demo available. this one maybe works, but it says it's for harddisks and 2MB, so you need to try yourself https://demozoo.org/productions/162449/ Else you go with the filed ve...
by Gunstick
Thu May 31, 2018 10:08 am
Forum: 3D MODELS
Topic: STFM case remake
Replies: 195
Views: 34676

Re: STFM case remake

If we can create a case model which can be laser cut, that would be great.
But laser cut cases always have right angle (sharp) edges.
Maybe CNC-millable would be a better approach. But the surface finish is then not as nice.
by Gunstick
Fri Feb 23, 2018 11:04 pm
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: A/B drive swap switch
Replies: 7
Views: 2467

Re: A/B drive swap switch

here is schemata on how to make a drive switch using the available soldering pads http://www.atari-forum.com/viewtopic.php?t=18010#p156680 also Troed did a "PCB trace cut" change himself and mad a nice blog post putting HxC and Floppy inside an STE https://blog.troed.se/2014/10/21/atari-st-drive-a-a...
by Gunstick
Thu Feb 15, 2018 12:34 am
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: A/B drive swap switch
Replies: 7
Views: 2467

Re: A/B drive swap switch

I guess an AUTO program can swap both drives when TOS/GEM is running. But for demo/games it's useless to change TOS, many switch off TOS and hammer around on the WD/YM directly.
by Gunstick
Sat Feb 10, 2018 6:33 pm
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: A/B drive swap switch
Replies: 7
Views: 2467

A/B drive swap switch

Hi There is an advantage to have drive A external to the ST as it allows to have a single Gotek/HxC to use on multiple STs. Here are some infos about how to put a switch in the ST which changes the internal to external drive and vice/versa https://rdemming.home.xs4all.nl/Atari/DriveSwapAtariST/ But ...
by Gunstick
Wed Jan 31, 2018 5:07 pm
Forum: CHAT FORUM
Topic: Lost the content of an hdd, atari compilation gone
Replies: 10
Views: 1689

Re: Lost the content of an hdd, atari compilation gone

if you did not yet do too much to the HDD except formatting it, there may be a chance to recover. The formatting only kills the partition and the root directory. All subfolder directories and files are kept. What also vanishes is the FAT, so if the disk is fragmented a lot, you have less chance of r...
by Gunstick
Sat Jan 13, 2018 4:21 pm
Forum: ST
Topic: C070243 Rev C (520ST+, 1MB, quite botched with extensions)
Replies: 0
Views: 1200

C070243 Rev C (520ST+, 1MB, quite botched with extensions)

Hi this is the original 520ST+ used to create Dark Side of the Spoon Gunstick520STplus.jpg So what are you seeing here? On the bottom is the 512K RAM, with piggyback soldered on a second 512K bank. This soldering job was originally done by Atari, and so the + in name was created. From the resistors ...