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Tom Verbeure
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Tom Verbeure 28. sij
Odgovor korisniku/ci @WillFlux @bml_khubbard i 2 ostali
Similarly, _oen (often used!) could be “output enable” or “output enable active low”. _ena removes that ambiguity as well. Suffixes on internal ports (_o, _i) are bad, prefixes are beyond evil. :-)
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Tom Verbeure 28. sij
Odgovor korisniku/ci @WillFlux @bml_khubbard i 2 ostali
If you have a bidir IO, does _out mean out of the chip, or out of the IO pad instance into the core? Both are used, and if you have multiple IP with different conventions, it’s a total mess. _to_pad removes that ambiguity.
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Tom Verbeure 28. sij
Odgovor korisniku/ci @WillFlux @bml_khubbard i 2 ostali
More important is the naming of the signals that go from pad instance to core. Instead of ambiguous “_in / _out / _oe”, I use “_from_pad/_to_pad/_pad_ena”.
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Tom Verbeure 28. sij
Odgovor korisniku/ci @RaleighC
At 3.3V: All off: 0.6A, R-only: 6.6A, G-only: 3.6A, B-only: 2.8A, White: 7.8A (!?). I have global dimming set at 1/4th, which limits things to around 1.8A.
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Tom Verbeure 28. sij
Odgovor korisniku/ci @ernestseah
A handful of understanding colleagues with Amazon Prime subscriptions goes a long way!
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Tom Verbeure 27. sij
Odgovor korisniku/ci @AtluriAditya
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Tom Verbeure 27. sij
Odgovor korisniku/ci @AtluriAditya
LED panel: 12x Project MC2 Pixel Purse (Amazon, $6.50, now $40), FPGA board: Cisco HWIC-3G-CDMA modem (eBay, $8), 3 custom PCBs (JLCPCB, $9), 12x HUB75 cables, screws, headers, glue, ... (AliExpress, $?)
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Tom Verbeure 27. sij
With most of the RTL done (sadly), it’s time to start working on visuals... Bitmaps are easy, but it needs demo-like effects too. Metaballs? Plasma fields?
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Tom Verbeure 24. sij
Odgovor korisniku/ci @ReanimationXP
They're the 32x16 P6 panels from the Pixel Purse. I'm driving it with a Cisco HWIC-3G-CDMA modem. :-)
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Tom Verbeure 23. sij
Odgovor korisniku/ci @tom_verbeure
A lot of work still to be done...
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Tom Verbeure 23. sij
Odgovor korisniku/ci @tom_verbeure
Sitting pretty...
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Tom Verbeure 23. sij
Odgovor korisniku/ci @tom_verbeure
The thickness of the LED panel PCB and the solder joints still create a gap. Could be fixed with a spin, but the gap is small enough that you don’t notice it when LEDs are blasting lights in your eyeballs.
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Tom Verbeure 23. sij
Odgovor korisniku/ci @tom_verbeure
Death Star tunnel.
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Tom Verbeure 23. sij
Using PCBs as cheap, high precision laser cutter/3D printer alternative for a mechanical structure. 50 L-sections for $5.
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Tom Verbeure 23. sij
Odgovor korisniku/ci @davywtf
My father (a physics professor) allowed 12yo me to take apart a broken washer and experiment with connecting random pins on the motor and the huge capacitors to 220V. I had no idea what I was doing. So many shocks and tripped circuit breakers. I don’t remember any stern warnings.
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Tom Verbeure 22. sij
Odgovor korisniku/ci @stdlogicvector @dnaltews @tnt
Check out this repo: . Information on the ColorLight 5A-75B is being updated daily.
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Tom Verbeure proslijedio/la je tweet
!!Con West 19. sij
Tickets for , the best !!Con in the west, are on sale right now! Because radical affordability is one of our principles, you can pay what you want -- last year, attendees paid anything from $1 to $256. Grab 'em before they're gone!
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Tom Verbeure proslijedio/la je tweet
Mike Walters 17. sij
Odgovor korisniku/ci @Claude1079
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Tom Verbeure 15. sij
Odgovor korisniku/ci @promach123 @FauthNiklas i 6 ostali
Any JTAG dongle that works with openocd should be fine for initial work discovery work. I used an Altera USB-Blaster clone in this case. For bitstream programming, I assume that a Lattice programmer is necessary? , do you know?
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Tom Verbeure 14. sij
Odgovor korisniku/ci @GregDavill @FauthNiklas i 4 ostali
That’s annoying. I’ve added a subdir in the chubby GitHub rep for this board. Feel free to add your finding there.
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