RfCat version plus some fixes and extra functionality#1

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AdamLaurie wants to merge 13 commits into

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Commits on Sep 19, 2012

first cut rfcat version. add semaphores, buttons and LED/USB target specific changes
AdamLaurie
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Commits on Sep 21, 2012

Commits on Sep 22, 2012

turns out we can read from arbitrary starting point, not just 16 byte boundries
AdamLaurie
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read (and verify) arbitrary block sizes. optionally read to file.
AdamLaurie
committed

Commits on Feb 25, 2015

Commits on Feb 26, 2015

add gpio setup section. add specific gpio setups for YS1 amp pins.
AdamLaurie
committed