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NISMOPC

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About NISMOPC

  • Rank
    Dragonstomper
  • Birthday March 15

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  • Gender
    Male
  • Location
    Lewis Center, OH
  • Interests
    Anything automobile. Datsun, Nissan, Infiniti enthusiast. ATARI collector. Motorcycles. Billiards.

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  1. This one appears to have a more functional keyboard and uses PiZero
  2. I did finish it and sold it to a forum member back in 2017. Can't find any pictures of the finished mod and not sure where it is now. The link to the document appears to be bad now, but found it via Archives: HOW TO ADD A MONITOR JACK TO A 600XL THIS MOD IS COPYRIGHTED BY KEN SUMRALL. HOWEVER, YOU MAY FREELY DISTRIBUTE IT, AND MODIFY IT, AS LONG AS THIS NOTICE IS INCLUDED IN ITS ENTIRERTY. THE AUTHOR MAY BE REACHED AT THE FOLLOWING EMAIL ADDRESSES: ken%[email protected] ...!hplabs!hpda!ken Here are instructions on how to add a monitor jack to your 600XL. This jack contains the following signals: pin signal --- ------------------- 1 Composite luminance 2 Ground 3 Audio out 4 Composite video 5 Composite chrominance The numbering convention for the DIN connector is: 3 o o 1 5 o o o 4 2 This mod for the 600XL provides every one of these signals except the composite chrominance. (Actually, the 800 and the XE both supply the composite chrominance signal, but the 800XL does not. Adding the composite chrominance signal to an 800XL is a simple mod that was described in ANTIC a few years ago. If you can't find the mod, send me e-mail, and I will try and find it.) COMPOSITE VIDEO (pin 4): To add composite video to your 600XL, you need the following parts, which are all available are Radio Shack: (1) 2N2222 general purpose transistor (1) 2.2K ohm resistor (1) 3K ohm resistor (1) 75 ohm resistor (1) 5 pin DIN female connector Here is the circuit diagram. It is a basic emitter follower circuit: +5V --- | | +--------------------------+ | | | | | | \ | / | 2.2K \ | / Collector | \ /-------+ | / Signal In | Base |/ o-----------+---------------| 2N2222 | |\ | \ Signal Out | \-------+--------------------> | Emitter | | | \ \ / / 3K \ \ 75 Ohms / / \ \ | | | | | | +--------------------------+ | ----- --- - I built this by just soldering the resistors and the transistor together, and did not put this on any kind of circuit board. After you have built this little circuit, you unsolder the 1st wire from the right of the RF modulator as you look at it from the front of the computer, and then solder that to the Signal In of this circuit. You then connect the Signal Out line to the 1st terminal from the right of the RF modulator, and also connect it to pin 4 of the DIN connector. You should use shielded wire when you connect the Signal Out line to pin 4 of the DIN connector. You can connect the ground wire to any major ground point on the mother board. I hooked mine to the metal case of the RF modulator. The +5V line is also available on the RF modulator. The 2nd pin from the right of the RF modulator is the +5V power supply for the RF modulator. COMPOSITE LUMINANCE OUTPUT (pin 1): To add composite luminance (black and white signal only) to the DIN connector, connect a 75 ohm resistor between the emitter of transistor Q6 and pin 1 of the DIN connector. You should use shielded wire to keep noise from appearing on the line. AUDIO OUTPUT (pin 3): To add audio output to the DIN connector, connect a wire from the 2nd terminal from the left on the RF modulator to pin 3 on the DIN connector. COMPOSITE CHROMINANCE (pin 5): I have not found a simple mod to pick up the composite chrominance signal for the DIN connector. I have not looked terribly hard, however, since it is possible to use the composite video output as a composite chrominance signal on many monitors. That is how my 600XL is hooked up to my separate composite chrominance/luminance monitor, and it looks great! GROUND (pin 2): I just connected pin 2 of the DIN connector to the metal box that the RF modulator lives in. However, you should be able to hook this pin up to any major ground point on the motherboard. I was able to mount the 5 pin DIN connector on the back of my 600XL, between the RF modulator and cartridge slot. It is a slightly tight fit, but you can fit it if you are careful.
  3. The way I did mine was with a piece of wood pressed to the inside of the case to decrease the possibility of uneven cuts. I centered the spade drill bit on the wood and used it as a guide when drilling, but plan to buy a step bit for any future mods like this since it is much more reliable.
  4. ATARI VIDEO MUSIC PLAYER Devo - The Day My Baby Gave Me A Surprise - YouTube Daft Punk - Robot Rock (Official Video) - YouTube
  5. SENTINEL was only released as PAL, but you can get an NTSC reproduction of it (as I did for my collection). Still looking for NTCS Ninja Golf and NTSC Tank Command to finish off my library. I also have the ATARI 7800 32-in-1 PAL only exclusive (even though it's just the ATARI 2600 32-in-1 PAL rebadged)
  6. Had it ever since it was new. Missing battery cover, but still works... 😜
  7. I just used Super Glue. I do not use this unit very often if at all - My daily is a 7800 with A/V mod. So I can't comment on how durable it is.
  8. @54018,52 I am now running DietPi with no desktop and have Atari800 immediately boot at startup. I have not messed around with anything since then because it works as I wanted to. Dedicated Atari800 PiZero that does everything I wanted. Can't recall all I did at the moment.
  9. Picked up two of them on sale @ $9.99/each from MicroCenter last week. For the price, well worth it, but I have not had a chance to play with them just yet.
  10. Tried it out on my Pi Zero W Atari800 set-up in PAL and worked flawlessly. [email protected] this is a tough game. Very enjoyable and great work!
  11. If it's this Blaze, this thread might help. 2600 games need to be *.bin. 7800 games need to be *.a78
  12. Well... I was on a mission. A painful, yet satisfying mission. I successfully got one of my Pi Zero W's to run Atari800 smoothly. I installed DietPi with no desktop and no additional features except OpenSSH so my PC can talk to it when needed. Set the GPU memory at 256 and CPU is defaulted to "On Demand". So pretty much stock except for GPU setting. Atari800 runs flawlessly so far. Been testing it last night and today and have not found any issues so far. Mostly *.xex files. Need to do more testing with other, especially *.atr files. Been very pleased with the performance. Only oddity: For the first min or so, games/sound are choppy. After that - smooth as could ever be for a emulator. I even compared run times of games and sounds with videos of actual hardware of same games and could not tell the difference.
  13. Anyone know why I would be able to use keyboard input on the terminal but not within Atari800? I installed DietPi on one of my Pi ZERO W's with no desktop. As minimal as it gets. Boots super fast into terminal. Terminal works fine and I can start Atari800, but the keyboard input is not responsive within Atari800. When I back out of it using ctrl-c or ctrl-x, I see all my keystrokes are being entered in the terminal. EDIT: NEVERMIND! Just figured it out. I have to run it with sudo command. Apparently I need to work on my user permissions.
  14. I tried Rasp Pi OS and the Atari800 emu on a Pi Zero W. It works, but there are nuances. Choppy sound and slight delay in activity as well as slow controller response. Probably milliseconds, but definitely noticeable. Ended up swapping the MicroSD into a Pi 3B and it runs flawlessly. Would be interesting to see how the PICO controller can handle an Atari 8-bit emulation based on the videos from the other link.
  15. "...the Pico uses a 3.3V GPIO. This could be seen as a con, but many components can be used with 3V and 5V voltages, and those designed for 5V can still be used with 3V via a voltage divider or a logic level converter board."
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