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About kheller2
- Currently Viewing Forum: Atari 8-Bit Computers
- Birthday 01/06/1972
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The tapes look like DDS 4mm. I would think we need a Unix system that can properly read the VAX backup format in how it's encoded on tape. Unless someone has a VAX.
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Building & Testing the Re-imaged Atari 1450XL
kheller2 replied to Dropcheck's topic in Atari 8-Bit Computers
Well, the specifics would be we need to see your board @AtariGeezer, what exact OS version you are using, and what IDE+ settings you are using and revision. The pictures previously posted were IDE+2.0 C. F is different .. and I think the latter version let you assign the PBI bus ID with a configuration tool. I don't know if you tested your board with F. -
Show me those VIC20 cracktros!
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I will shamefully admit that I had never heard of the word "cracktro" before. I figured out what it most likely meant, and then googled it. I feel old. I will add some speculation to this thread: Cracking a game on the A8 was itself a journey and with limited resources just putting up a splash screen or "brought to you by" was enough. You also have a timeline to consider: The A8 was out for a few years before the C64 became mainstream. Are there many C64 cracktros before 1984 (1.5 years on market)?
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Building & Testing the Re-imaged Atari 1450XL
kheller2 replied to Dropcheck's topic in Atari 8-Bit Computers
Is that Diag software built-in or separate on an ATR image? I'm wondering if it will detect the onboard PBI device IDs on the remake properly, which I'm probably incorrectly assuming are 1 and 7, with the IDE at 0? -
Its a 256K upgrade of some sort.
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Building & Testing the Re-imaged Atari 1450XL
kheller2 replied to Dropcheck's topic in Atari 8-Bit Computers
Okay, we'll go by what is etched on the board: The 1400 and 1450 (part of project Dynasty) are basically the the same, only the 1450 has a header for a floppy board and a header for floppy power and thus uses a different power supply (and pin layout?). Said floppy board contains the FDC and all components to run bare floppy mechs similar to the 1050. Basically a double sided version of the Tandon drive. The floppy board is in essence a PBI device just plugged into the PBI bus inside the case. The TONG board uses stock PC floppy drives, I believe EPSON units. The entire floppy system is already integrated into the main motherboard.. which is also why its huge compared to the 1400/1450 boards. Dynasty = 1983 1400XL/1450XLD TONG = 1984 1450XLD -
Building & Testing the Re-imaged Atari 1450XL
kheller2 replied to Dropcheck's topic in Atari 8-Bit Computers
The two boards performed the same. They had the same chips as the 900XLF/65XE just the glue chips were different. The TONG seemed to ingrate the floppy a lot better. TONG had the SC02 vs the SC01 voice chip. Dynasty drives are documented in the DOS 3 guides to using a 1450XLD, Double sided dual density drive (I think each side, is a drive number - I don't remember just this moment). Some of this is also documented in the Altirra Hardware Ref Guide. -
Building & Testing the Re-imaged Atari 1450XL
kheller2 replied to Dropcheck's topic in Atari 8-Bit Computers
Depends on which 1450 you are referring too. The 1983 Dynasty short board versions have a PBI header that plugged into a "floppy board" that used 1050 style mechs. "floppy board" because I've seen two types. The 1983 TONG version used a stock floppy header, as all the floppy drive electronics were onboard the TONG. -
I am curious if the expensive TRACOs that were used as replacements in 1050s are noisy/less. Putting cheap converters into a floppy drive always worried me for some reason.
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Common error in Stereo POKEY upgrades
kheller2 replied to pseudografx's topic in Atari 8-Bit Computers
How are all of these upgrades different from the "Gumby" upgrade you do by hand with two POKEYs? I remember doing that and just adding some caps to the line outs. -
Clear Case for 800XL Now in 4 colors available on Kickstarter
kheller2 replied to joeventura's topic in Atari 8-Bit Computers
This needs to be posted on FB and elsewhere. Is there a picture of the colored cases? -
Stock drive? correct trimmer pot? no other Atari disks in your possession to check speed? really scrub the heads? bad media, no HD floppy and make sure it isn’t flaking?
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The 400 was RF only too, remember. Be glad the 600XL doesn’t have a membrane or chiclet keyboard!