Syzygy: An open standard for low cost, compact and high-performance peripherals

[dead]

It hasn't really taken off beyond Digilent. Xilinx still uses FMC/FMC+, Altera/Intel/Altera still uses HSMC.

I remember watching Andy Barry/MIT demo of Pushbroom stereo approach on a flying-wing drone, it used stereo 120FPS cameras to dodge trees & branches. It's almost a decade later now & such hardware is still not cheaply available for Pi's/SBCs.

I'm not familiar with the other standards this is being compared to. Why not use PCIe?

random rant not really related to op but spurred by it:

i know it will probably never happen, but it would be 'truly epic' if hard PCIe endpoints became as ubiquitous as say, SPI peripheral blocks, within MCUs/MPUs and the general silicon jelly-bean world.

just a very high speed, very low latency, very widespread, very standard, very boring communication channel. and ofcourse an atmega328p can't keep up with the full b/w, but even something like an rp2040 could take serious advantage of such a fast port.

it would mean that fast information interchange would be available for "anyone", and most importantly, could be interfaced with a bog-standard run of the mill desktop PC.

it feels like, right now, if you want to do pcie stuff you have to either go FPGA, which seem like theyre quite far behind: artix stuff is pcie gen 2, i think gowin announced some pcie4 products but im not sure if they ever became real - and fpgas ofcourse are expensive and drag in a bunch of other considerations that you may not want or may be detrimental to your project... or go for a limited selection of (often closed source) mcus/mpus, thankfully the raspberry pi isnt that closed, but if the rpi doesnt have what you want then you have to go for say a rockchip, or whatever asian SOC that often has a very ambivalent relationship with datasheet availability. and even then they might not support operating the pcie in device mode (might be misremembering)

whatever, maybe im talking rubbish. i remember wanting to make some kind of USB3 gadget and being incredibly frustrated that the only option among the ocean of MCUs was the cypress ezkit bridged to a parallel bus to an FPGA. so lame! i think xilinx offered a usb3 peripheral IP block but it was behind an expensive license. i think since then there have become available USB3-capable RISC-V MCUs, thankfully, but im still surprised that nobody seems to really care about fast low latency data transfer. i guess its just not very important for "real" applications out in the wild.