EclaireXL

11/17/2019

09:10 PM Feature #84: Add SID

Attaching some of the octave files from investigating this for reference + the wave files + other useful bits I found... foft

09:07 PM Feature #84: Add SID

Did some research over the weekend. Generating these isn't a terribly trivial problem!
I tried for some time to ge... foft

11/12/2019

10:19 PM Feature #84: Add SID

It sounds good to me, but not sure what it is meant to sound like!! foft

10:19 PM Feature #84: Add SID

Also wondering if the clk frequency is important (not enable), I see some state table increment on every clock, which... foft

10:18 PM Feature #84: Add SID

Wondering about some kind of bit map of unpopulated locations (reducing locations) or a 2nd lookup layer (reducing bi... foft

10:04 PM Feature #84: Add SID

I loaded the tables in to octave to take a look.
Observations...
* Not a simple curve
* Lots of zeros, >80% in ... foft

10:02 PM Feature #84: Add SID

Actually the issue with fitting in v2 is block ram, not ALMs. Though its always good to save ALMs!
The sid tables ... foft

11/09/2019

10:05 AM Feature #84: Add SID

Also got this potential USB sharing, that'd save 750 ALMS. Each request/reply is host initiated, so no reason can't s... foft

10:03 AM Feature #84: Add SID

600 alms each, will use mono sid I guess. Or make it a generic and enable on the larger boards? foft

10:00 AM Feature #84: Add SID

Logic utilization (in ALMs) 9,808 / 9,430 ( 104 % ) foft

09:56 AM Feature #84: Add SID

Have a dual 8250 working, though it doesn't fit in the smaller boards. Investigating why, memory or logic... foft

09:56 AM Feature #84 (New): Add SID

Agreed to try adding a SID to the pokeymax.
Eclaire is a good test bed for this, so starting out with that foft

10:00 AM Bug #69: Some TVs confused by hdmi audio

Hias had some clever approaches, capturing the digital audio out from the tv etc foft

09:59 AM Bug #69: Some TVs confused by hdmi audio

I dug into this a bit with Hias. It turned out the issue for him was noise from the dac, so distinct issue. Though I ... foft

09:58 AM Feature #32: option to connect the original ATARI XL keyboard to ExclairXL

Panos kindly sent me the boards he designed. I put together the bom on mouser and digikey. will order some parts and ... foft

09:55 AM Feature #51: Debug port

Now I have the saleae I figure I can stream this more reliably to the PC. Will have a go at this soon... Perhaps I wr... foft

09:54 AM Feature #82: Setting for mono pokey

With adding sid should probably allow that to be on/off too.
pokey 1/2
sid 0/1
2 bits? foft

09:44 AM Bug #83: Many USB hubs do not work

Just did a bit more testing. Two hubs, two keyboards and a joystick. Fiddled with unplugging/re-plugging etc and all ... foft