15:03 <Wanda[cis]> azonenberg: I'm curious, do you know if anyone ever took die shots of the System ACE CF chip?

15:03 <Wanda[cis]> I've been wondering for a long time wtf that thing really is

15:43 <azonenberg> Wanda[cis]: i'm about 80% sure it was disclosed in some doc or other that it was some generation of coolrunner with a special firmware on it

15:43 <azonenberg> but i cant point to anything off the top of my head

15:44 <azonenberg> i did decap the Platform Flash but cracked the die. it was made by stmicro on an old-looking process

15:44 <azonenberg> i actually found a single XCF02 the other day in my parts bin that had been lurking there for ages and should decap it and grab a nicer photo

15:44 <Wanda[cis]> coolrunner huh.

15:47 <azonenberg> Looking for the source, if i'm actually remembering correctly. https://www.edn.com/xilinx-to-use-siliconsystems-tech-in-system-ace/ related but not too useful

15:48 <Wanda[cis]> it doesn't match xpla3 nor xc2c tq144 pinout

15:48 <azonenberg> yeah ok i also see in DS080 that it runs core at 3.3

15:48 <Wanda[cis]> ... I guess it could be a custom package option

15:48 <azonenberg> maybe it was an xc9500?

15:49 <azonenberg> or it could be an asic

15:50 <Wanda[cis]> xc9500xl pinout also doesn't match

15:51 <Wanda[cis]> cannot be xc9500 or xc9500xl because it has two VCC banks

15:51 <azonenberg> welp. guess i remembered wrong

15:51 <Wanda[cis]> cannot be xc9500xv either because that'd require 2.5V core supply

15:52 <azonenberg> yeah its probably an asic then

15:52 <azonenberg> some bog-standard mcu of the era perhaps

15:52 <azonenberg> if you get your hands on one i can decap it

15:53 <Wanda[cis]> I do have a few on various devboards, though I'd prefer not to destroy them

15:53 <azonenberg> yeah thats the tricky bit

15:53 <azonenberg> getting one you can sacrifice

15:53 <Wanda[cis]> also I think we're like on different continents

15:54 <azonenberg> yeah but how much does it cost to ship a tqfp?

15:54 <azonenberg> a few postage stamps?

15:54 <Wanda[cis]> ... true

15:54 <azonenberg> of all the potential blockers, that's not the big one

15:56 <Wanda[cis]> also in similar questions

15:56 <Wanda[cis]> seen any versal die shots yet?

15:57 <azonenberg> win-source claims to have 557 in stock for $54 each in single units. and i see a bunch on aliexpress for low tens of usd each. anybody's guess if they're real

15:57 <azonenberg> some are obvious fakes that dont even have a xilinx logo

15:57 <azonenberg> a few at least look legit at a glanec

15:57 <azonenberg> https://www.aliexpress.us/item/3256805667611674.html?spm=a2g0o.productlist.main.11.6e2049e9kmrISg&algo_pvid=4e575351-527a-482d-b778-857b07db4165&algo_exp_id=4e575351-527a-482d-b778-857b07db4165-5&pdp_npi=4%40dis%21USD%2130.00%2130.00%21%21%2130.00%2130.00%21%402103205217318589755006780e974d%2112000034583566378%21sea%21US%212942960971%21X&curPageLogUid=u4cRMypOLsdu&utparam-url=scene%3Asearch%7Cquery_from%3A

15:58 <azonenberg> if you're that interested i can drop $30 and decap whatever shows up

15:58 <azonenberg> as scott manley says "excitement guaranteed, we're just not sure what kind"

15:58 <azonenberg> i have not seen any ultrascale, ultrascale+, or versal decaps to my knowledge

16:05 <azonenberg> this seller claims to have 54K in stock which i doubt (or its a sign that they have 54K blank tqfp's they can relabel depending on how many you order)

16:06 <azonenberg> the package is ink printed not laser engraved in that pic. i see photos of both looking online, but i dont know which marking scheme(s) were used on real parts

16:06 <azonenberg> so that doesnt narrow it down much

16:10 <Wanda[cis]> I can give you some photos

16:12 <Wanda[cis]> ML505

16:12 <azonenberg> So it is ink printed

16:12 <azonenberg> that matches what the aliexpress seller has

16:13 <azonenberg> i'll bite. $30 for microscope food

16:13 <azonenberg> it'll make an interesting blog post or something even if it's fake

16:14 <Wanda[cis]> ML510 (holy shit this board is dusty)

16:14 <azonenberg> lol yeah

16:15 <Wanda[cis]> SP605

16:16 <azonenberg> ok so based on those

16:16 <azonenberg> i'm most confident in the ink printed parts

16:16 <azonenberg> the ones with laser engraving are more sus

16:16 <azonenberg> the ones with only the part number, date code, and "JAPAN" almost 100% fakes

16:17 <azonenberg> i.e. there's no way xilinx would make one without a logo

16:18 <Wanda[cis]> and the oldest I have, a XUP Virtex-II Pro board

16:18 <Wanda[cis]> before RoHS apparently

16:18 <azonenberg> ah yeah a non-G part

23:04 <Wanda[cis]> okay I am DONE with this cursed refactor

23:04 <Wanda[cis]> 163 files changed, 21440 insertions(+), 17810 deletions(-)

23:06 <Wanda[cis]> the core interconnect model has been disentangled from ISE tile/wire/pip/bel naming model, so I can now add support for toolchains that aren't ISE (or Vivado, which has basically the same naming model)