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fluxit

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About fluxit

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  1. That's entirely up to you. Many people keep the original card with its software unmodified as a way to easily restore the system to its 'stock' condition. There's no technical reason why you can't write the new firmware to your original card. That's what I've done.
  2. I was curious, and wasn't adverse to having an extra USB NIC around, so I tried the above linked lan adapter. The one that I received _does_ actually** have an RTL8152 chip, and it works with the R77. However, it didn't work for me when plugged directly into the OTG cable, only when plugged into an(unpowered, for what it's worth) hub. I've noticed this with a few devices, that the R77's USB doesn't seem to like to negotiate directly with some USB devices if they have been powered up before the R77, as they are when plugged directly into the OTG. So, in other words- if you have a USB device that 'should' be working with the R77 but isn't, try plugging it in directly(if through a hub,) or through a hub if direct before giving up. ** note that I'm not guaranteeing that purchasing the linked adapter will get you one that is compatible with the R77, just that it worked for me.
  3. The cart plays nicely on my 7800 and Retron 77. One small thing- if you want to share your score with someone, you'd better be quick. It's only displayed for ~20 seconds, and pause doesn't work on the end screen if you are using a 'real' 2600 compatible.
  4. It's a 500k trim pot. Almost anything in this range can be made to work. You'll probably want to choose something of the vertical adjustment type similar to the original.
  5. Nice challenge. I'm not sure that I'd have crashing into a drone kill the player, as it leads to instant deaths when you are unlucky enough to be entering a screen at exactly the same time that an enemy drone is leaving it which seems a bit unfair. The ship 'engine' and motion sounds do not cease when all player ships have been destroyed.
  6. fluxit

    RetroN 77

    I don't actually think that the two problems are directly related, although that remains to be seen. I'm thinking that the ADCs are not actually physically separate circuits(in as far as that's possible) inside the MCU, and that is what is causing the interaction that we're seeing. Fixing it on Hyperkin's part might have been as simple as using different sets of inputs for the paddle lines, or it could be simply that this was not a good choice of a chip for this particular use. One of the tests that I'll run will be to provide separate voltage reference sources for paddles in a pair, to see how that affects the noise level. Sadly, I can't use different inputs on the MCU without butchering the board or modifying the firmware, which I'm not willing to do at this time. At most I'll power the MCU separately from the main board if my scope shows that to be potential issue, though I hope it doesn't, because I don't really want to get into that either.
  7. fluxit

    RetroN 77

    From what I can see, it appears as though the paddle jitter problem may be caused by noise that's being picked up by the ADC inputs of the MCU on the controller daughterboard. Said inputs appear to be directly connected to the pins of the front joystick ports. I'm going to approach this from the hardware side. Assuming that this 'noise' is not being generated internally by the MCU, and is not a bug in the MCU's firmware(sample size/bittedness conversion error, buffer under/overrun, etc.,) it may be due to an unstable reference voltage source. The notes that come with the firmware source code claim that the paddle reference voltage is 5 volts, but when I probed the front ports, I never saw anything over 3.4(which I'm guessing is coming directly from the 3.3v vrm, I haven't traced it out yet,) so that seems to be a discrepancy to begin with, unless the note was referring to an original 2600 port, rather than the R77. To date I haven't had a scope connected to the R77 while paddles were connected, so I'm not certain at this point. I'm currently all out of male db9 connectors, so I have some on order which should arrive in a couple of weeks at which point I will begin testing this hypothesis.
  8. Does the Bodnar box display a number on the display that's been tested? I like how the Cnet review that mentions using the tester says that it's "dead simple," but doesn't bother to tell what the box does.
  9. A new controller board firmware would be nice, but deploying it may not be a straightforward process. I don't think that anyone has looked into this thoroughly, but assuming the MCU allows itself to be reflashed, it may not be as simple as running a flasher program on the R77 via the sdcard. You may have to attach a programmer to the board itself. Hyperkin would most likely want people to send in their R77 for service if such a fix became available rather than arranging for a board swap, but I wouldn't hold my breath on either of those possibilites. On the other hand, I seem to recall someone reporting that they did send their Retron to Hyperkin, and the paddle jitter issue was fixed as a result. It's too bad that Andrew the Hyperkin rep stopped posting on AtariAge before the initial release of the Retron 77.
  10. I don't know. I tried to check it for you, but I can't access the 'Controller Options' tab in beta 1. Shift-arrow keys no longer works in beta 1 so long as I can tell, and Thomas' controller mappings weren't available yet. It doesn't seem to be a keyboard issue as shift-tab still works to cycle backwards between options or buttons. I never came across this issue during testing, as I was just using the 'Input' section to temporarily change bindings. How do you access another dialog tab in beta 1?
  11. That's exactly the conclusion that I came to after checking the dev/input/* node of a device that never worked when hotplugged(and apparently I left out 'cold-boot' testing, as it isn't wireless) on the R77. It did generate a working 'js2' node(active output,) but after unplugging it, none of the compatible devices would generate working nodes. During my testing this confused me, as devices that could be successfully unplugged and replugged multiple times and even swapped for each other would suddenly stop working. This was apparently due to the order in which they were tested during a single boot.
  12. Both the Mayflash and JYS dongles claim to support wireless PS3 controllers. I don't have a PS3, so I can't test one.
  13. I just tried the Nyko 87024-E14 that's plugged into my Wii and it worked with R77. It's apparently based on an ASIX AX88772 chipset according to the Retron, FWIW. --edit- It took me about half an hour to discover that the reason the R77 wasn't accepting my SSH password was because I was trying to login as myself instead of root. /facepalm
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