<awygle>
Lofty: what do you want run? i have excel
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<Lofty>
awygle: if you scroll up, hell__ links to the Intel Early Power Estimator. Which is a spreadsheet with Excel macros.
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<awygle>
Lofty: yep got it, just dont' know what scenarios you want run (there's lots of knobs here....)
<Lofty>
10CX085, speed grade 6, max power draw, no cooling
<Lofty>
awygle: ^
<awygle>
extended 6 or industrial 6?
<awygle>
u484 package?
<Lofty>
extended, u484
<Lofty>
This is the cheapest C10GX I can find on mouser :P
<awygle>
with no cooling at max power and no heat sink it melts from just the static power
<awygle>
(which is 1.124W)
<Lofty>
... Well, that's useful to know
<awygle>
there's not really a "max power" button here
<awygle>
lemme try some stuff...
<whitequark>
just toggle every register and LUT
<Lofty>
There's a typical usage and a max usage in the main page, I think
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<awygle>
there is but it's "with the loading conditions specified"
<awygle>
i'm doing what wq said, but then the question becomes "at what frequency, in what mode"....
<Lofty>
I think the specs call for a 100-125MHz input clock?
<Lofty>
Almost made an unfortunate typo there
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<awygle>
if i toggle all the ALMs and FFs every cycle at a 525 MHz clock (taken from datasheet), the logic draws 15W
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<awygle>
Lofty: okay the absolute max i can make this thing draw is on the close order of 30W
<Lofty>
Well, USB ain't gonna source that
<daveshah>
That doesn't mean USB isn't useful though
<daveshah>
ime about 50% of what I run on my dev boards is blinky or picorv32
<Lofty>
Intel seem to flog their own brand of power supplies for their chips
<Lofty>
The Enpirion chips
<daveshah>
Back when I was designing with Cyclone III, they used to flog their own ludicrously expensive SPI flashes as well
<daveshah>
They were something like £8, compared to <£1 for a generic one
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<awygle>
i like the "USB power with supplementary barrel jack" option
<daveshah>
+1
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<awygle>
USB maxes at what, 2.5W without PD?
<daveshah>
You can kind of do 3A 5V with USB C using resistors on CC1/2 and comparator to check
<daveshah>
Not full PD negotiation
<gruetzkopf>
ah, the joys of platform flash
<zyp>
awygle, 2.5W for plain usb2, 4.5W for plain usb3, 7.5W or more for BC, 15W for plain usb-c
<zyp>
IIRC BC says 1.5A max, but I believe it's used for up to 2.4A in practice
<zyp>
IMO PD is starting to become ubiquitous enough that I'd use it for anything that requires significant power, much more convenient than keeping track of which barrel jack adapters fits what and where they are
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<Lofty>
I don't know if I have any USB PD chargers unfortunately
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<zyp>
even ikea got PD chargers nowadays, I got one of their 30W ones, it's nice and cheap
<zyp>
and they also got an 18W one at half the price of the 30W one
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