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#81
Neo6502 / Joystick or Paddles
Last post by stingrayce1982@gmail.com - August 02, 2025, 11:38:07 PMNow that I can run my favorite vintage games, my thoughts immediately turn to how to get an analog joystick or paddles connected. I see that there is USB gamepad support but I don't know how that would be used with legacy Apple II software.
Olimex offers an adapter to connect a Nintendo Nunchuck controller via the UEXT connector. Does NEO6502 have built in software to make it recognized at the PDL() device in BASIC?
Are there other options I've overlooked?
Olimex offers an adapter to connect a Nintendo Nunchuck controller via the UEXT connector. Does NEO6502 have built in software to make it recognized at the PDL() device in BASIC?
Are there other options I've overlooked?
#82
Neo6502 / Re: Problems reading USB drive...
Last post by stingrayce1982@gmail.com - August 02, 2025, 11:13:59 PMNow that I have access from PRODOS 8 like my Apple of olde, it's starting to feel very legitimate. I bought two NEO6502 boards and I'm thinking of transplanting one into an empty Apple IIc case. Thanks to everyone who helped me get here.\
#83
Neo6502 / Re: Problems reading USB drive...
Last post by stingrayce1982@gmail.com - August 01, 2025, 09:42:14 PMThanks Ralf- yes, that sorted it out for me. I'm now booting into PRODOS with no problems.
#84
Neo6502 / Re: Problems reading USB drive...
Last post by Ralf - August 01, 2025, 03:07:28 PMHi Stingray,
I tried to reproduce what you have described, and I've come to the conclusion that you might have used the apple2e-5.uf2
So, from my humble experience:
apple2_800x600_400MHZ.uf2 -> is pre-flashed on the Neo6502 at delivery, but does not support USB flash drive access
apple2e-5.uf2 -> works with Total Replay
apple2e.uf2 -> works with ProDOS_2_4_3.po
I know this is confusing, I assume it has something to do with the way these uf2 files are compiled. The apple2e.uf2 should be included in the zip file I linked.
If you're in for the fun of it, there's a bunch more apple2 uf2 to try out:
https://ftp.olimex.com/Neo6502/old-uf2/
Cheers
I tried to reproduce what you have described, and I've come to the conclusion that you might have used the apple2e-5.uf2
So, from my humble experience:
apple2_800x600_400MHZ.uf2 -> is pre-flashed on the Neo6502 at delivery, but does not support USB flash drive access
apple2e-5.uf2 -> works with Total Replay
apple2e.uf2 -> works with ProDOS_2_4_3.po
I know this is confusing, I assume it has something to do with the way these uf2 files are compiled. The apple2e.uf2 should be included in the zip file I linked.
If you're in for the fun of it, there's a bunch more apple2 uf2 to try out:
https://ftp.olimex.com/Neo6502/old-uf2/
Cheers
#85
Neo6502 / Re: Problems reading USB drive...
Last post by stingrayce1982@gmail.com - August 01, 2025, 11:20:35 AMRalf- thanks, your advice cleared things up a bit. I didn't realize that the Apple II firmware that came on my board didn't support the USB Key (as they call it). As you suggested, I put the Apple IIe firmware on the NEO6502 and loaded a USB Key(flash drive) with Total Replay and it booted up just fine. Thanks for that!
Now I know that my keyboard and USB hub are working just fine!
Now I'm trying to get an image that I can use to boot to Prodos. I tried as you suggest to place the ProDOS_2_4_3.po as the only file on a USB flash drive. Unfortunately the NEO6502 isn't recognizing it and is booting up to ROM Basic with no PRODOS present. It seems so simple, I don't know how I'm screwing it up.
Is there a maximum flash drive size? I'm using the same 8GB drive that works OK with Total Replay.
Now I know that my keyboard and USB hub are working just fine!
Now I'm trying to get an image that I can use to boot to Prodos. I tried as you suggest to place the ProDOS_2_4_3.po as the only file on a USB flash drive. Unfortunately the NEO6502 isn't recognizing it and is booting up to ROM Basic with no PRODOS present. It seems so simple, I don't know how I'm screwing it up.
Is there a maximum flash drive size? I'm using the same 8GB drive that works OK with Total Replay.
#86
A20 / Re: update to Debian 12 (Bookw...
Last post by enok71 - July 31, 2025, 12:55:00 PMArmbian also has "unsupported"
bookworm based image for Lime2 with kernel version currently 6.12.
bookworm based image for Lime2 with kernel version currently 6.12.
#87
Biofeedback - EEG, ECG, EKG / Re: Gold cup electrodes for EE...
Last post by michaloblastni - July 30, 2025, 09:27:10 PMToday, my Ten20 conductive paste has arrived:
It works perfectly. However, I've tried two different tapes to attach the electrodes properly to skin and neither of the tapes was any good. Poorly attached electrodes have a distorted signal (i.e. weaker than it should be and unstable from a poor contact).
I've learned from medical resources that with Gold Cup Electrodes, Ten20 Conductive Paste is one of the most commonly used, and to position the electrodes on the scalp, they use the 3M Transpore™ Tape - 1 in. So, I had to order https://www.aliexpress.com/item/1005009400972477.html (from a different marketplace that's a local store).
I've also ordered the Nuprep gel to make 100% sure everything is professional and ready to work: https://bio-medical.com/nuprep-eegecg-skin-prep-gel-3-pack-of-4oz-tubes.html
Source: https://lifesync.com/blogs/blog/using-gold-cup-electrodes-for-eeg-monitoring-and-recording (medical article regarding EEG recording).
It works perfectly. However, I've tried two different tapes to attach the electrodes properly to skin and neither of the tapes was any good. Poorly attached electrodes have a distorted signal (i.e. weaker than it should be and unstable from a poor contact).
I've learned from medical resources that with Gold Cup Electrodes, Ten20 Conductive Paste is one of the most commonly used, and to position the electrodes on the scalp, they use the 3M Transpore™ Tape - 1 in. So, I had to order https://www.aliexpress.com/item/1005009400972477.html (from a different marketplace that's a local store).
I've also ordered the Nuprep gel to make 100% sure everything is professional and ready to work: https://bio-medical.com/nuprep-eegecg-skin-prep-gel-3-pack-of-4oz-tubes.html
Source: https://lifesync.com/blogs/blog/using-gold-cup-electrodes-for-eeg-monitoring-and-recording (medical article regarding EEG recording).
#88
ESP32 / Re: ESP32-DevKit-Lipo Power Sw...
Last post by LubOlimex - July 30, 2025, 11:58:35 AMSure you can do that, it is just not very elegant and no way to tell when battery is charged. Using the external power sense and battery measurement you can have some feedback on what is connected when and when battery is going empty or full then trigger events.
#89
A20 / Re: Old olinuxino a20 kernel i...
Last post by luimarma - July 30, 2025, 11:05:45 AMOK thanks
#90
Biofeedback - EEG, ECG, EKG / Re: Gold cup electrodes for EE...
Last post by michaloblastni - July 29, 2025, 04:28:53 PMLubOlimex: Today, my OpenBCI kit has arrived:
https://www.aliexpress.com/item/1005002683152100.html
I found they sell only one electrode, one wire, one spring, ... for this price.
So, when you need 4 electrodes you have to buy this kit 4 times. Since only 1 electrode arrived, I cannot do the experiments yet. I've just ordered the remaining electrodes.
Btw. I've developed what's possibly the first EEG-SMT Android app: https://www.olimex.com/forum/index.php?topic=9867.0
https://www.aliexpress.com/item/1005002683152100.html
I found they sell only one electrode, one wire, one spring, ... for this price.
So, when you need 4 electrodes you have to buy this kit 4 times. Since only 1 electrode arrived, I cannot do the experiments yet. I've just ordered the remaining electrodes.
Btw. I've developed what's possibly the first EEG-SMT Android app: https://www.olimex.com/forum/index.php?topic=9867.0