Search found 22 matches

by Kairos
Sat Sep 11, 2021 11:10 pm
Forum: Hardware
Topic: GE-SOFT ACSI-SCSI host adapter
Replies: 4
Views: 279

Re: GE-SOFT ACSI-SCSI host adapter

Which one do you have?
Try using the GE-Soft driver and utilities.
by Kairos
Mon Aug 30, 2021 8:28 pm
Forum: Hardware
Topic: STs without +12V in the monitor connector
Replies: 7
Views: 374

Re: STs without +12V in the monitor connector

Maybe it’s not pin 8 the problem, but pin 16: the ST SCART cable sends a vsync signal on pin 16 of the SCART plug, and while it worked on 80’s TVs, it confuses modern TVs, that expects a solid 5V on this pin. There’s a lengthy exploration, in french, of this problem here: http://fr.meric.free.fr/Ar...
by Kairos
Fri Aug 27, 2021 10:41 pm
Forum: Hardware
Topic: STs without +12V in the monitor connector
Replies: 7
Views: 374

Re: STs without +12V in the monitor connector

I had previously sent the guy in question a cable where pin 8 on the 1040Atari STF, that should either be providing +12V or be tied to ground, went to pin 8 on the SCART. Resulting in a black screen. According to him, no remote control shifting brought a picture to the screen. His 1040STE though sho...
by Kairos
Fri Aug 27, 2021 10:29 am
Forum: Hardware
Topic: STs without +12V in the monitor connector
Replies: 7
Views: 374

STs without +12V in the monitor connector

There seems to be some Atari STs that lack +12V in the monitor connector. Without modifying the computer itself what options are there for fixing this? I'm trying to help someone who lives in the other end of the country, so it would be good if the solution kept to something like a custom SCART cabl...
by Kairos
Thu Aug 26, 2021 8:49 pm
Forum: Hardware
Topic: Assembled list of LCD/CRT VGA monitors supporting Atari low/med res
Replies: 58
Views: 24661

Re: Assembled list of LCD/CRT VGA monitors supporting Atari low/med res

Thank you.

I have used Mono to 3x47Ohm to RGB. But the bars seem to do more with the monitor than with the signal source.

New question, what is Z?
by Kairos
Tue Aug 24, 2021 5:40 pm
Forum: Hardware
Topic: Assembled list of LCD/CRT VGA monitors supporting Atari low/med res
Replies: 58
Views: 24661

Re: Assembled list of LCD/CRT VGA monitors supporting Atari low/med res

Seems to be the input sampling level on mine ,pulled up the input voltage a bit and all of a sudden the thing nicely synced into a good pixely mono pattern as should be. Most likely the internal signal handling that has some treshold level to pop over for not thinking its a 'greymix' of sorts? Coul...
by Kairos
Fri Aug 20, 2021 12:58 pm
Forum: News & Announcements
Topic: EmuTOS 1.1.1
Replies: 29
Views: 1875

Re: EmuTOS 1.1.1

I think that supporting users with SS diskdrives is well meaning but pointless.
How about at least making TWO images, one SS and one DS? Then check the tally. How many downloads were SS and how many were DS.
by Kairos
Fri Aug 20, 2021 10:18 am
Forum: News & Announcements
Topic: EmuTOS 1.1.1
Replies: 29
Views: 1875

Re: EmuTOS 1.1.1

viking272 wrote: Fri Aug 20, 2021 10:09 am
I just tested the mailing list and signed up without issues. When you add yr email address you are sent a confirmation email to click on to confirm you want to subscribe.
Thanks Roger and the team for the updates.
No, I had no problem joining, I had a problem finding where to join.
Now I know.
by Kairos
Fri Aug 20, 2021 10:15 am
Forum: News & Announcements
Topic: EmuTOS 1.1.1
Replies: 29
Views: 1875

Re: EmuTOS 1.1.1

Note that you have to write the image to a single-sided floppy disk (or exclusively to side 0 of a double-sided disk). Your observation (crashing with a bus error = two bombs) is often indicative of not writing the image correctly. In any case, to avoid such trouble, I usually recommend using the ....
by Kairos
Fri Aug 20, 2021 9:56 am
Forum: News & Announcements
Topic: EmuTOS 1.1.1
Replies: 29
Views: 1875

Re: EmuTOS 1.1.1

In fact, I encourage anyone who has an interest in EmuTOS to join the mailing list. You can join by going to this URL: https://sourceforge.net/projects/emutos/lists/emutos-devel Roger Thank you for the link. Actually I attempted to do just that on my own, but I guess I simply had a bad google day.
by Kairos
Thu Aug 19, 2021 9:18 pm
Forum: Hardware
Topic: ROM Capacity on the 1040STE
Replies: 15
Views: 770

Re: ROM Capacity on the 1040STE

OK, now I have read out the TOS EPROMs with a program named TOSRIP.TTP. I used the parameters: -s 1024 DOUBLE.IMG This gave me a file 524288 bytes in size. Exciting! Next thing, looking at it with a hex editor. The hex editor gave me lots of FF bytes from the half way of the file. Aaaah... excrement...
by Kairos
Thu Aug 19, 2021 8:51 pm
Forum: News & Announcements
Topic: EmuTOS 1.1.1
Replies: 29
Views: 1875

Re: EmuTOS 1.1.1

Have tried out EmuTOS 1.1.1 and am very impressed. While using it I came to think of things I'd like to have fixed and also of things I'd love to add to it. First the bugs. The EmuTOS version that is to be loaded from a selfbooting floppy doesn't work for me. It bombs with two bombs. My computers ar...
by Kairos
Thu Aug 19, 2021 7:33 pm
Forum: Hardware
Topic: ROM Capacity on the 1040STE
Replies: 15
Views: 770

Re: ROM Capacity on the 1040STE

Slight update...

I attempted to repeat the experiment and failed.

I first went with uDump, as suggested by its author in this thread. Impeccable. Did its job.
Where I failed was in finding the other two programs I used. Maybe it was on that other forum?
by Kairos
Tue Aug 17, 2021 8:59 pm
Forum: Hardware
Topic: ROM Capacity on the 1040STE
Replies: 15
Views: 770

Re: ROM Capacity on the 1040STE

Well, I can't but agree with you guys, but yet... There was a thread here about programs that could read out the contents of the TOS chips. I tried 3 of them and two had problems because of my TOS being Swedish. Funny thing is that a program that could read TOS and save it to disk was one of my very...
by Kairos
Tue Aug 17, 2021 9:23 am
Forum: Hardware
Topic: ROM Capacity on the 1040STE
Replies: 15
Views: 770

ROM Capacity on the 1040STE

The other day I used some programs to read off the contents of the EPROMs in my 1040STE. As it happened, the EPROMs inside, a couple of 27C020, were programmed with two images, one standard TOS 2.06 Swedish and one EmuTOS. The idea was to eventually bend out the highest address pin and then switch O...
by Kairos
Thu Jun 17, 2021 11:56 pm
Forum: 680x0
Topic: Best procedure for random numbers
Replies: 14
Views: 1195

Re: Best procedure for random numbers

Long time ago I read that the decimals of Pi were used as random numbers. I guess you'd first need to calculate lots of decimals far off from the first ones and then randomly (!) decide at what decimal you'd sample your number. Decimals of Pi don't show any patterns or recurring sequences, which mak...
by Kairos
Fri Jun 11, 2021 10:47 am
Forum: Hardware
Topic: RGB to SCART with stereo audio
Replies: 0
Views: 205

RGB to SCART with stereo audio

I'm trying to make an Atari STE RGB to SCART cable with separate leads for the stereo L and R sound. No problems with the picture part thanks to other posts here. What I wonder about is the sound part. Obviously, one can attach the Mono Audio signal from pin 1 on the DIN13 port to pins 2 and 6 of th...
by Kairos
Sat May 29, 2021 5:25 pm
Forum: Hardware
Topic: Atari st serial is giberish
Replies: 4
Views: 801

Re: Atari st serial is giberish

If you're using an RS-232 cable intended for modems or printers, there will be no luck in transferring stuff from one computer to the other.

Google for "null modem cable" and you will find what you need.
by Kairos
Sat May 29, 2021 8:34 am
Forum: Hardware
Topic: trouble formatting with usb external floppy
Replies: 14
Views: 1712

Re: trouble formatting with usb external floppy

Maybe you're overdoing it? Contrary to what other posters have claimed, I format all my Atari floppies on the PC. Reason being that the PC is more choosy about floppy formats. The Atari seems to swallow it all. I'm using W10 x64 and various USB floppy drives. W10 will for some reason not format a 72...
by Kairos
Sat May 29, 2021 7:46 am
Forum: Hardware
Topic: Casio F-91W as Atari RTC?
Replies: 1
Views: 224

Casio F-91W as Atari RTC?

Casio F-91W is probably the most iconic and famous wrist watch in the world. It has been worn by both Obama and Usama and the CIA is aware of it being the preferred watch for terrorist bomb makers. It is very cheap. About US$10-20. There is also a huge hacker community and activity around it. My tho...
by Kairos
Tue Feb 09, 2021 12:08 am
Forum: Hardware
Topic: Internal DMA connector
Replies: 0
Views: 117

Internal DMA connector

Has anyone yet designed an internal DMA connector for those Atari ST/E machines who are NOT a Mega ST/E? I see lots of marvellous stuff to connect to the external DMA port, but much of it is naked and a bit mechanically flimsy. This is not too practical when it comes to certain uses for an Atari ST....

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