4 ms·

F1's on AWS are I think ultrascale+, though I don't know how fast Amazon actually lets you drive them.

• aseipp 9y ago
  There are a few different available clocks, each in different configurations (you always get a set of clocks, really), but you can get up to a 500Mhz clock out of them for specific clock lines from a specific configuration, with that particular configuration backed by a 250mhz "main" clock as well.
  • slededit 9y ago
    Do they let you use the clock management tiles or are they all tied up? With those you should be able to generate whatever clock you want.
    • aseipp 9y ago
      No, at least not directly with the way the HDK is set up out of the box; there are "Clock Recipes" you choose from at build time, and a recipe is just the pre-canned configuration. 3 different groups, each one with a chosen (single) recipe, each group giving you a few clocks of various frequencies. The clock recipe is examined as part of the "AFI Manifest" when Amazon creates FPGA images you can load, so I doubt you can go out of the way very much, here. https://github.com/aws/aws-fpga/blob/master/hdk/docs/clock_recipes.csv https://github.com/aws/aws-fpga/blob/master/hdk/docs/clock_r... https://github.com/aws/aws-fpga/blob/83c80efd30862d862ea8f99ff4045a22d57e3453/hdk/docs/AFI_Manifest.md#L41 https://github.com/aws/aws-fpga/blob/83c80efd30862d862ea8f99...