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https://www.aliexpress.us/item/3256803970893483.html https://www.aliexpress.us/item/3256803970893483.html I've ordered trays (and they send the OEM tray) - uni
by 15155 2y ago
https://www.aliexpress.us/item/3256803970893483.html https://www.aliexpress.us/item/3256803970893483.html
I've ordered trays (and they send the OEM tray) - unique barcodes, legit.
> Just give me a plain FPGA and MCU with no wizards or GUIs or automatic code generation.
You can pretty much cut out all of their tools and get a pure Yocto/Vivado TCL build for the bitstream for the 7 series Zynqs. Very low touch.
Their IO planner (in the Vivado IP integrator) is somewhat necessary for complex peripheral scenarios and is one of the few things I ever use Xilinx GUI applications for anymore.
- anyfoo 2y agoI don’t even find Vivado that bad, but maybe I have Stockholm syndrome. Or maybe it’s because I’m forced to use Intel Quartus right now and wish it was Vivado every time.
- scottapotamas 2y agoI was interested to see, or at least what state they're in so I grabbed a couple. Might try to compare them against some genuine ones with CT and destructive inspection. On the chance they're half reasonable, thanks for the link.
- 15155 2y agoLet me know if the barcodes are anything but unique/perfect. This has been the case with many vendors, but these chips are cheap enough that you can try 50 vendors.
- scottapotamas 2y agoWill do. Not too worried about trying low cost parts to gain some minimal confidence in a possible source, they're compelling for weekend side-projects at least. I've previously struggled to roll the dice for higher end parts as the cost difference isn't as extreme and had some obvious reballed parts a few years ago. If they're OK then their $20 XC7K325T will be at the top of my list...
- 15155 2y agoAt $20, just buy from LCSC- https://www.lcsc.com/product-detail/Programmable-Logic-Device-CPLDs-FPGAs_AMD-XILINX-XC7A35T-2FGG484I_C1521727.html https://www.lcsc.com/product-detail/Programmable-Logic-Devic... https://www.lcsc.com/product-detail/Microcontroller-Units-MCUs-MPUs-SOCs_XILINX-XC7Z010-2CLG400I_C2840993.html https://www.lcsc.com/product-detail/Microcontroller-Units-MC...
- scottapotamas 2y agoThat's low-end Zynq and Artix and I'm thinking more >676 Kintex, though I appreciate any discussion on sourcing. In the way that that Aliexpress vendor lists the 7010 parts at 1/10th the price of LCSC, some of their $20-60 listings are also shockingly cheap in comparison.
- 15155 2y agoAh, missed the K! For the K420T, I pay around $30-45 from CN (not Aliexpress) sources with original barcodes (but these vendors are quite a bit harder to deal with.)
- azonenberg 2y agoI have some obviously reballed (but well done) aliexpress XCKU5P's that I got for $55 a while back. Haven't tested yet but the price was so good I couldn't resist.
- scottapotamas 2y agoI’ve been bitten before but the risk/reward is probably worth it for parts like that. Thanks for your write-ups btw, been following glScope development for a while.
- Yoofie 2y agoHow do you assemble your board with BGA packages? Or do you procure the parts and then send them somewhere for assembly?
- 15155 2y agoVapor phase reflow.