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Type: Posts; User: Kevin Williams

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  1. Thanks so much! I had read that before, and your...

    Thanks so much! I had read that before, and your explanation definitely helps. I guess it just pulses once when the write is done? I'm not sure how to hook this event in code, will have to read a...
  2. I am talking about IO Ready, sorry, that was...

    I am talking about IO Ready, sorry, that was ambiguous. And yes, the GameBlaster, as well as the SN76489 on the PCjr both use it in the way I describe. Yes, it is scary, but the Snark Barker/SB 1.0...
  3. I'm working on the audio chipset for the...

    I'm working on the audio chipset for the Commander X16 machine, and built a small SAA1099 test board for the X16. While it is working, the audio was noisy. I then looked at the schematic for the...
  4. The 65c816 does work, sort of. The Kernel timing...

    The 65c816 does work, sort of. The Kernel timing on initialization / video refresh seems to be a tad off, but code will run and it will be designed to be interchangeable on the final board. We'll...
  5. It's here: Emulator (WIP):...

    It's here: Emulator (WIP): https://github.com/commanderx16
  6. Commander X16 - The 8 Bit Guy's Dream Computer Discussion Thread

    Hello Everyone!

    For many months this year, we have been working with David Murray, The 8-Bit Guy, to design the motherboard for his "Dream Computer". This machine is now known as the Commander...
  7. Yeah, I'm not sure how deep it goes. I suspect...

    Yeah, I'm not sure how deep it goes. I suspect you'll be debugging the driver/patched basic to get much out of it. I only looked through the manual briefly, but it seems to just really cover the...
  8. Hello, I'm ready to make your day! I...

    Hello,

    I'm ready to make your day! I hope at least. My wife and I are lucky enough to only be about 1.5 hours away from Computer Reset in Dallas, TX, and I was going through some of the...
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    Good lord, I looked and missed this somehow on...

    Good lord, I looked and missed this somehow on the same site as last time too! Sorry for being lame again, I dug for the service manual but neglected to look for the Sirius. Thanks Chuck, I really...
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    Victor 9000 Video Pinout / Specs?

    Hello Everyone,

    I have a couple of Victor 9000 machines which I picked up without keyboards or monitors. I was lucky enough to snag two keyboards from eBay, but no luck on the monitor. I know...
  11. Thanks Chuck! Wow, I need to learn to dig...

    Thanks Chuck! Wow, I need to learn to dig better. I dug high and low looking for something like this. I'll post back here if I ever get a day or two to work on it. BTW, I'm going back to the...
  12. Litton ABS MiniComputer - Any info out there?

    Hey Everyone,

    I recently made a cool find in the form of a Litton ABS Model 1601 Processor. I found info online about machines in this series, and it seems to be a small office accounting...
  13. Hey Guys, Thanks for the responses, and I...

    Hey Guys,

    Thanks for the responses, and I think it is a Hi-Tek keyboard as well. I did some more digging, but there is no name on the board itself. I also think it is the same layout as the...
  14. Micro Switch 53RW4-1 Dated 39 Week of 1970 Mystery Keyboard - Any ideas?

    Hello Everyone,

    I have an old keyboard that I was wondering if anyone could identify? I listed in on eBay today as I've had it for several years now, and I really don't think I'll ever get...
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    Well, it looks like I didn't need the extra 64k...

    Well, it looks like I didn't need the extra 64k after all. When test completed, I ran HDloader and up it came. Drive M: is present, and working! I even went back and tested the myriad of cables we...
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    Hi Audronic, Thanks for the info,...

    Hi Audronic,

    Thanks for the info, unfortunately, the first step above is after "partitioning and formatting", which is where I'm stuck. :-)

    So, I finally broke down and made the CP/M disk...
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    Hi Hans, I am actually trying this on a...

    Hi Hans,

    I am actually trying this on a Model 4 non gate-array. I socketed the 245 so when we ultimately sell these, it will be easy for folks to switch it to a 640 if needed. I just used a...
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    Hi Hans, Thanks so much for your response! ...

    Hi Hans,

    Thanks so much for your response! I tried this, but I get an error telling me the drive slot is already in use. My config only show drive 0 & 1. After I use enable, drive 4 shows up...
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    Hello Again, Well, I'm getting the same...

    Hello Again,

    Well, I'm getting the same error with the PQI DOM that I have with every other device I have tried. This is the same device I used on a Model II and it worked great. Does anyone...
  20. Does any one have the schematic for the Orchestra 90 for Model III & 4?

    Hello Everyone,

    I was wondering if anyone had the schematic for the Orchestra 90 for the Model III & 4? Not the CoCo version, I've already seen that one in the manual but haven't been able to...
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    Hey, Thanks for the tip, unfortunately this...

    Hey, Thanks for the tip, unfortunately this didn't help. Hmm.. Not sure what I'm doing wrong. I ordered a PQI DOM, should be here tomorrow so I'll give it a shot. I'm not too hopeful, but I'm...
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    Thanks for your response Ray. I'm not actually...

    Thanks for your response Ray. I'm not actually trying to auto-boot, just format. I'm not using a 4P, just a Model 4. I guess I need to know if the errors I'm getting are normal, or is that a...
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    Lo-Tech TRS-80 IDE Adapter - Issues

    Hi Everyone,

    As many of you may know, James Pearce has licensed several of his boards to our store and we recently worked with him to offer the Lo-Tech TRS-80 IDE adapter. We finally got our...
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    Hello, Sorry to be so behind on responses,...

    Hello,

    Sorry to be so behind on responses, we've been super-busy and building cards like crazy. We do sell just the bare PCBs for all of the cards we licensed from James. They are on our...
  25. TexElec.com Introduces the Resound OPL3 - 4 Channel 8 Bit ISA Card!

    Hello Everyone,

    My name is Kevin Williams with TexElec.com. We are happy to introduce our newest card, the Resound OPL3 4 Channel card! Our board uses a Yamaha YMF262 (OPL3) chip and a little...
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