Search found 470 matches
- Fri Mar 03, 2023 7:19 am
- Forum: HARDWARE ISSUES
- Topic: Turning on STacy only 2 times out of 10 does it start.
- Replies: 84
- Views: 10576
- Tue Feb 21, 2023 5:54 pm
- Forum: HARDWARE ISSUES
- Topic: Nova compatible boards
- Replies: 17
- Views: 2012
Re: Nova compatible boards
Doing multiple changes at once is detrimental to the fault-finding process, I'm afraid to say. What I would have done instead: - With the already pre-installed GAL "ET4"... - without doing any HW mods... - I would have just set the jumper to MSTE, which is the correct setting. But I guess ...
- Fri Feb 17, 2023 4:27 pm
- Forum: HARDWARE ISSUES
- Topic: Nova compatible boards
- Replies: 17
- Views: 2012
Re: Nova compatible boards
Frank already mentioned the most important detail: for an ET4000, the jumper needs to be in the MSTE setting even on a TT. As for EmuTOS: you don't need to program it into EPROMs necessarily. There is a .prg version, which includes Nova support, too: https://sourceforge.net/projects/emutos/files/sna...
- Fri Feb 17, 2023 7:13 am
- Forum: HARDWARE ISSUES
- Topic: Nova compatible boards
- Replies: 17
- Views: 2012
Re: Nova compatible boards
Which GAL on the Nova?
Correct jumper setting on the Nova?
Does EmuTOS recognize the cards?
Correct jumper setting on the Nova?
Does EmuTOS recognize the cards?
- Sat Jan 28, 2023 9:38 am
- Forum: HARDWARE ISSUES
- Topic: ClockInACan using 32.084988 crystal from an ST
- Replies: 3
- Views: 651
Re: ClockInACan using 32.084988 crystal from an ST
PS: The datasheet of the IC used by the "clock in a can" confirms this: "The NJU6311 is a fundamental quartz crystal oscillator".
- Sat Jan 28, 2023 9:23 am
- Forum: HARDWARE ISSUES
- Topic: ClockInACan using 32.084988 crystal from an ST
- Replies: 3
- Views: 651
Re: ClockInACan using 32.084988 crystal from an ST
Rest assured that these are proper 32.xxx MHz crystals. If you put your scope to the oscillator circuit in an ST, you can see the crystal oscillating at 32.xxx MHz. It's quite common to operate crystals at their overtone frequency, e.g., ≈3xfundamental, i.e. 3x10.6xx MHz. See here: https://www.jauch...
- Wed Jan 11, 2023 9:52 pm
- Forum: SOFTWARE PROGRAMMING & DISCUSSION
- Topic: Blitter investigations and research from a software perspective
- Replies: 14
- Views: 1925
Re: Blitter investigations and research from a software perspective
Without looking it up (in the schematics at https://www.chzsoft.de/asic-web/) I would assume that the Blitter doesn't even have the LSB of the address implemented. In other words: you can't write an odd source or destination address to the respective registers.
- Sun Jan 08, 2023 3:24 pm
- Forum: HARD DRIVES
- Topic: Seagate ST-251 MFM HD problem
- Replies: 7
- Views: 1337
Re: Seagate ST-251 MFM HD problem
Looking at the PCB (http://bitsavers.informatik.uni-stuttgart.de/pdf/seagate/mfm/ST-251/ST251_f.jpg), many of the chips are Seagate ASICs apparently (and, thus, unobtainium). But I do see that the µC has a 2732 EPROM connected to it, a dump of which someone also put at Bitsavers, along with the sche...
- Sun Jan 01, 2023 10:37 am
- Forum: PHOENIX ZONE
- Topic: The plan for 2023 - H5 roadmap
- Replies: 4
- Views: 1566
Re: The plan for 2023 - H5 roadmap
I have to wonder, though: Why "hack" TOS 2.06, when there is EmuTOS? Imho, a modern, advanced hardware platform should be supported by a modern OS.
- Thu Dec 29, 2022 1:47 pm
- Forum: DSTB1 & DFB1 booster by BadWolf
- Topic: DFB1 Support thread
- Replies: 272
- Views: 21036
Re: DFB1 Support thread
Meanwhile, HDDRIVER 11.14 was released today with the fix that Frank had already successfully tested: https://www.hddriver.net/en/news.html.