Breathing
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The LED's of the Snickerdoodle will sometimes emit a heartbeat-like pattern that the community sometimes calls "breathing". The default firmware of the platform controller causes this behavior in the white LED when a bit stream is loaded on to the FPGA. Subsequently the design, with the help of the platform controller, can alter the behavior of any LED.
- TODO: add pointer to a description of the various light patterns
- TODO: add reference to the original documentation of this behavior and description of the pattern produced when the load completes, fails or hangs.
Also See
The Snickerdoodle Book - link
References
Platform Controller API - link