In terms of covox it would seem to be a dead end anyway. It's probably going to be using the up/down/left/right & fire inputs. If vice supports covox voice master then you can get the details from there, if it doesn't support it then you'll need to disassemble the software to figure out which joystick lines take each bit (and to test it you may want to add support for it). There may be an output line to trigger a sample. Once you have those details then hooking up the hardware should be (relatively) trivial. On 11/10/2016 17:31, Terry Raymond wrote: > Hi Jim, > > Is the SID Pot ADC the same Pot X any Y that Joysticks or Paddles use? > > The Actual Transistor on the Pot ADC I didnt know about this and a lot > about the > SID and I dontvat the time know much about the SID Die, very awesome but if > you could point out where the Pot ADC is located on the Die, but I need to > try and understand > the Pot ADC more too. > > Thank you for the info on this Jim but I can see its all learning about > this particular circuit > is needed on my part. > > Terry Raymond > > On Tuesday, October 11, 2016, Jim Brain <brain@jbrain.com> wrote: > >> Terry, before trying to understand the SID ADC, you'll need to learn more >> about RC networks, and there are lots of howtos online. >> >> Trying to understand the C64 behavior without those fundementals will only >> frustrate. >> >> >> On a related note: >> >> The SID POT ADC circuitry needs to drag the line hard to ground for 256 >> cycles. NMOS would easily handle this, but it must be a pretty hefty >> transistor to ensure it can overcome the current coming from the paddle >> resistor. I don't see such a transistor on the 6581 die shots, but it must >> be there. What should I look for? >> >> >> jim >> >> >> On October 11, 2016 at 11:57 AM Terry Raymond <traymond20@gmail.com >> <javascript:_e(%7B%7D,'cvml','traymond20@gmail.com');>> wrote: >> >> Hi Jim, >> >> Please explain (im new to all Electronics) >> Input = voltage or Joystick input in this device ? >> Cap, I assume the round capacitors. >> External Resistor = is this a resistor ladder or 5bit ADC >> RC Network ? >> >> I might look for info on the Commodore files (Bo Zimmerman's site) >> Google Digitizers or 5 ADC etc. >> I will try to research this more too, but thanks guys for the info. >> >> Terry Raymond >> On Tuesday, October 11, 2016, Jim Brain <brain@jbrain.com >> <javascript:_e(%7B%7D,'cvml','brain@jbrain.com');>> wrote: >> >> Wow, talk about a blast from the past... >> >> >> Since that time, I have confirmed that you get 512 cycles per sample. 256 >> with the input tied to ground to completely discharge the cap, and then 256 >> left floating to the external resistor can charge the cap via the RC >> network. >> >> >> Jim >> >> >> On October 11, 2016 at 10:54 AM groepaz@gmx.net wrote: >> >> >> On Tuesday 11 October 2016, 15:48:16 smf <smf@null.net> wrote: >> >> Ok, looks like this was answered a long time ago.... >> >> https://groups.google.com/forum/#!msg/comp.sys.cbm/G0CJgGPLe >> i0/MgxDU6GZrz0J >> >> :) another problem is that teh paddle ADC doesnt translate an external >> voltage >> to a value, but it measures the resistance of an external resistor - which >> makes using it for sampling audio significantly more complex. >> >> -- >> >> http://www.hitmen-console.org http://magicdisk.untergrund.net >> http://www.pokefinder.org http://ar.pokefinder.org >> >> Americans always do the right thing, once they have exhausted all other >> possibilities. >> <Winston Churchill> >> >> >> >> Message was sent through the cbm-hackers mailing list >> >> Message was sent through the cbm-hackers mailing list >> >> Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2016-10-11 18:00:02
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