4 ms·
> Can the Zynq 7010 handle something like data transfer from a 4K image sensor to a USB 3 transceiver? The Zynq 7010 is less-than-ideal for this because you'd
by 15155 2y ago
> Can the Zynq 7010 handle something like data transfer from a 4K image sensor to a USB 3 transceiver?
The Zynq 7010 is less-than-ideal for this because you'd have to use some kind of USB3 interface PHY - which would increase cost and be pretty limited functionality-wise.
If you use an FPGA with transceivers (some 7 series Artix chips - 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..., most 7 series Virtex/Kintex chips, all US/US+ chips), you can implement USB3 without an external PHY: https://github.com/enjoy-digital/usb3_pipe https://github.com/enjoy-digital/usb3_pipe
The Z7010 probably has the area to do this type of translation but not the transceivers. There are other chips in the 7 series Zynq family with capable transceivers, but they are much more expensive ($15-$35 from CN).
> I was under the impression the PIO has fairly precise timing if you set up your clocks right, but maybe I've been misled here.
No measured data, but when I was once implementing JTAG and SPI at 50MHz+ with an extremely overclocked chip, the edges were very inconsistent in relation to each other and in pulse width - 5-15ns (estimating from memory, they were sloppy.)
PIO is very precise within its specified capabilities, this range is just very low compared to cheap FPGAs.
- bschwindHN 2y agoThanks for the reply and the links! I'm okay with a more expensive FPGA chip if it significantly simplifies the implementation. I'm probably biting off more than I can chew trying to start FPGA dev with something like this, so I'll also look into simpler starter projects. > PIO is very precise within its specified capabilities, this range is just very low compared to cheap FPGAs. Good to know, I don't plan on pushing RP2040s to their limit any time soon. They're still excellent for lower speed projects.