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Adesto AT25SF041
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This is an example capture of an Adesto AT25SF041 (4MBit == 512kByte) SPI
flash chip being driven by a Teensy 3.6.

It contains sparse button activated device ID and status checks followed by
a simple read.

Details:
https://www.adestotech.com/wp-content/uploads/DS-AT25SF041_044.pdf


Logic analyzer setup
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The logic analyzer used was a DreamSourceLab DSLogic Plus (at 50MHz):

  Probe       AT25SF041 pin
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  0           clk
  1           mosi
  2           cs
  3           miso