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Arcade bonnet driver improvements #49

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Arcade bonnet driver improvements #49

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lhrc-mikeyp
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A set of changes to improve performance of the Arcade bonnet Python driver, and avoid hangs under heavy activity:

  • Changed the IRQ handler to only read the two GPIO registers
  • IRQ optimization to skip processing when there is no GPIO status change
  • Change the main loop to read the GPIO registers, which re-enables interrupts

Most other changes are formatting and comments.

@lhrc-mikeyp
update Arcade Bonnet driver
7a7d854 
iWORK in progress, to resolve ocassional hangs under heavy activity.
@lhrc-mikeyp
Arcade bonnet driver updates.
1f8b4d5 
update arcade bonnet driver to poll in the main loop so
interrupts are never disabled if an IRQ is missed.
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