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base repository: GlasgowEmbedded/glasgow
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head repository: GlasgowEmbedded/glasgow
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  • 3 commits
  • 4 files changed
  • 1 contributor

Commits on Mar 18, 2019

  1. gateware.clockgen, applet: fix typos.

    @whitequark
    whitequark committed Mar 18, 2019
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  2. applet.interface.spi_master: use ClockGen. 

    This makes clear the limitations of the current SERDES engine (i.e.
that the maximum clock rate is 1/4 of applet clock) and handles edge
conditions reliably. It could also enable higher rates in the future.
    @whitequark
    whitequark committed Mar 18, 2019
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  3. firmware: use PF instead of EF/FF and INFM1/OEP1. "NFCI." 

    This allows us greater freedom in changing the latency of the FX2
arbiter for IN and OUT transfers alike.

This is a fairly significant change that could lead to corruption of
data in transit and hangs, but it seems OK based on testing with
the following applets:
  * benchmark
  * memory-25x
  * video-rgb-input

Also, gruetzkopf has verified this according to documentation and
silicon behavior and it also appears fully equivalent.
    @whitequark
    whitequark committed Mar 18, 2019
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